0.grouper.ieee.org/groups/transformers/meetings/minutes-s81-s91/19… · charlie brown and mike...

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IEEE TRANSFORMERS COMMITTEE MEETING

MAY 1 3 , 1987 FT. LAUDERDALE, FLORIDA

MEMBERS OR REPRESENTATIVES PRESENT ( 7 8 )

1 . B. F. Allen 2 . R. Allustiarti 3 . S. J. Antalis 4 . E. H. Arjeski 5 . J. Aubin 6 . J. J. Bergeron 7 . J. V. Bonucchi 8 . J. D. Borst 9 . G. H. Bowers

10. D. J. Cash 1 1 . 0. R. Compton 12. F. W. Cook, Sr. 13. J. Cochran 1 4 . D. H. Douglas 15. J. D. Douglass 16'. J. C. Dutton 17. J. K. Easley 1 8 . J. A. Ebert 19. R. L. Ensign 20. P. P. Falkowski 21. D. J. Fallon 22. - H. G. Fischer 23. H. E. Gabel, Jr. 24. D. A. Gillies 25. G. Gunnels, Jr. 26. J. H. Harlow 27. F. W. Hendrichs 28. W. Henning 29. K. R. Highton 30. P. J. Hoefler 3 1 . C. R. Hoesel 3 2 . R. H. Hollister 33. C. C. Honey 34. F. J. Gryszkiewicz 35. F. Huber, Jr. 3 6 . J. C. Arnold 37. A. J. Jonnatti 38. L. Jump 39. C. P. Kappeler 4 0 . J. J. Kelly 4 1 . W. N. Kennedy 42. E. Koenig 43. J. G. Lackey

44. R. E. Lee 45. T. G. Lipscomb 46. R. I. Lowe 4 7 . M. L. Manning 48. J. W. Matthews 49. S. P. Mehta 5 0 . C. K. Miller 5 1 . R. E. Minkwitz 5 2 . M. I. Mitelman 5 3 . H. R. Moore 54. R. J. Musil 55. W. H. Mufschler 5 6 . L. S. McCormick 5 7 . J. W. McGill 5 8 . C. J. McMillen 5 9 . W. J. McNutt 6 0 . E. J. Norton 61. H. A. Pearce 62. C. A. Robbins 6 3 . L. J. Savio 6 4 . W. E. Saxon 65. V. Shenoy 66. W. W. Stein 6 7 . L. R. Stensland 6 8 . R. B. Stetson 6 9 . T. P. Traub 7 0 . R. E. Uptegraff, Jr. 7 1 . G. Vaillancourt 7 2 . R. A. Veitch 7 3 . L. B. Wagenaar 74. R. J. Whearty 7 5 . A . Wilks 7 6 . W. E. Wrenn 7 7 . A. C. Wurdack 7 8 . D. A. Yannucci

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MAY 13, 1987 FT. LAUDERDALE, FLORIDA

MEMBERS ABSENT ( 2 4 )

1. D. J. Allan 2 . R. J. Alton 3 . R. Bancroft 4 . E. Chitwood 5. D. W. Crofts 6. C. G. Evans 7. M. Frydman 8. R. L. Grubb 9. G. Hall 10. T. K. Hawkins 11. C. Hurty 12. R. G. Jacobson 13. A. D. Kline 1 4 . H. F. Light 15. R. Little 16. C. Millan 17. D. Perco 18. B. E. Smith 19. L. Swenson 20.. A. L. Tanton 21. V. Thenappan 22. R. C. Thomas 23. F. W. Thomason 2 4 . J. A . Thompson

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1. M. S. Altman 2 . J. Antweiler 3 . D. Base1 4 . W. B. Binder, Jr. 5 . J. D. Blackmer 6 . W. E. Boettger 7 . T. L. Bowers 8 . T. F. Brennan 9 . C. V. Brown 10. G. C. Bryang 11. W. J. Carter 12 . K. Carrander 13 . V. Dahinden 1 4 . J. Frank 15 . M. A. Franchek 1 6 . R. Garcia 17 . R. E. Gearhart 1s. J. Gerth 1 9 . G. E. Henry 111. 20. P. J. Hopkinson 21 . D. L. Hornak 22 E. Howells 23. J. W. Hupp 24. Y. P. Iijima 25. I). L. Johnson 26 . W. Jump 27. S. P. Kennedy 28 S. Lindgren 29. K. T. Massouda 30. J. L. Moon 31. C. L. Moore 32. S. Moore 33. J. Nay 34 . L. M. Nicholas 35 . S. K. Oklu 36 . T. Orbeek 37. W. L. Patterson 38. D. C. Payne 39. V. Q. Phan 40. R. L. Provost 41. G. Reither 42 . J. Rossetti 43. T. Shkordoff 44 . R. W. Simpson, Jr. 45 . S. D. Smith


MAY 1 3 , 1987 FT. LAUDERDALE, FLORIDA

GUEST LIST ( 5 0 )

46. D. Sundin 47. D. S. Takach 48. H. J. Wimdisch 49 . F. E. Willett 50. G. C. Zgurls

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IEEE Transformers Committee May 13, 1987

Ft. Lauderdale, Florida Minutes of Meeting

The meeting began at 8:OO A.M. with 78 members and 50 guests in attendance with Chairman Olin Compton presiding.

1. Chairman's Remarks and Announcements - Olin Compton Chairman Compton began by thanking hosts Charlie Honey,

Charlie Brown and Mike Altman of Florida Power and Light Co. for planning such an excellent meeting. There were 181 registered members in attendance and this excellent showing was due in part to their hard work in providing excellent facilities and an attractive location.

The Transformers Committee was congratulated by its Chairman for its excellent effort toward meeting the new IEEE Standards Requirements. This has been somewhat troublesome and the positive efforts by all were a source of pride to him.

The future meetings of the Committee were reviewed and are as follows :

November 1-4, 1987 New Orleans, LA Monteleone Hotel Host: Mr. John J. Bergeron

April 10-13, 1988 Washington , DC T e r ace $ 1 0 ~ Host: Mr. Jim Arnold

November 6-9, 1988 Long Beach, CA Ramada Renaissance Hotel Host: Mr. Roger Ensign

91% - Spring, 1989 Chicago, ILL Host: Mr. Len Stensland 3 /l8 .315.1,90

6 In addition, the following tentative locations will be con idered for other future meetings: Charlotte, N.C., fall of 1989; Denver, GO., spring of i!&ES; Montreal, Canada, fall of 1990. Arrangements for hosting of these meetings must be worked out.

The following individuals were elected to Membership on the Main Transformers Committee at the May 11, 1987 Administrative Subcommittee Meeting .

4

Jacques Aubin - Hydro Quebec Donald J. Fallon - Public Service Electric & Gas Allan M. Iverson - G.E., Ft. Wayne Francis J. Gryszkiewicz - Doble Engr. Robert E. Lee - Pennsylvania Power & Light Co. Larry Lowdermilk - G.E., Hickory, N.C. Michael I. Mitelman - RTE Corp. Joseph N. Pollitt - Balitmore Gas & Electric

Note was made of the Liaison Reports which were available at the registration table. (ATTACH. 5-87-A(1) thru. (8))

The Chairman also noted his written report dated May 10, 1987 (ATTACH. 5-87-B); his report to the Technical Council at the 1987 Winter Power Meeting (ATTACH 5-87-C); and his report on Procedures for Completing and Implementing Indemnification (ATTACH. 5-87-D)

The Chairman also discussed the possibility of returning to Conference and Transaction Grade papers at some time in the future. Additionally, it was noted that a new authors guide is now available.

2 . Approval of Minutes of Meeting of October 15, 1986 The minutes of this meeting were approved as mailed.

3. Report of Subcommittees

3.0 Administrative - 0. Compton The Chairman reported on the Administrative Subcommittee Meeting

held on May 11, 1987 the minutes of which are attached: ATTACH 5-87-E. and E(1) through E(8).

Suggestions were solicited for improved scheduling of the meetings during the three day meeting period. Those with recommendations should contact Olin Compton. In addition, he also discussed Committee Goals as requested by our PES President. Similiarly, anyone having recommendations for Goals or new future directions for our Committee should also contact Mr. Compton.

3.1 Audible Sound and Vibration - A. M. Teplitsky No report (the subcommittee did meet but no one was present to

report nor has a written report been received.)

3 . 2 Bushings - L.B. Wagenaar See Attachment 5-87-F

3 . 3 HVDC Converter Transformers & Reactors - W. N. Kennedy See Attachment 5-87-G It was agreed that a 8:OO A.M. Time slot on Monday would be

provided for the Subcommittee at the next meeting.

5

3.4 Dielectric Tests - R. E. Lee See Attachment 5-87-H. During the presentation of the activities of the W. G. for

Revision of Dielectric Testing of Distribution Transformers the question of balloting a Revised proposal for Routing Impulse Testing of Distribution Transformers became the subject of considerable discussion. The concern was that the document had not received a non-controversal Subcommittee Ballot and it was felt that a Main Committe Ballot was premature. Chairman Compton took the opportunity to stress that ballots should only be brought forward to the Main Committee after satisfactory reconciliation of all major questions at the Subcommittee Level. When negative ballots are received at the Main Committee level, from someone not directly involved, the reconciliation of the negative ballot often proves to be extremely difficult and actually looses instead of gains time.

Bob Lee also notified attendees of the "Round Table Discussion on Low Side Surge Requirements for Distribution Transformers" which was going to be conducted this afternoon. (Secretary's Note: Mr. Lee furnished a report on this Round Table Discussion which is not to be considered a part of the Minutes of this Transformers Committee Meeting but which has been included as ATTACH. 5-87-1 due to the level of interest in this subject and its future importance to the Committee)

3.5 Dry Type Transformers - R. E. Uptegraff. Jr. See Attachment 5-87-5. On a motion by Mr. Uptegraff the Transformers Committee

unanimously approved the re-authoriztion of ANSI C57.94-1982 entitled "Recommended Practice for Installation, Application, Operation, and Maintenance of Dry Type, General Purpose, Distribution and Power Transformers." There were no abstentions.

3.6 Instrument Transformers - R. B. Stetson See Attachment 5-87-K. Chairman Compton requested that Messrs. Stetson and Lee and their

respective Subcommittees coordinate with each other regarding the question of Dielectric Testing of Instrument Transformers above 230kV.

3.7 Insulation Life - D. H. Douglas See Attachment 5-87-L Mr. Douglas indicated that topics such as Bubble Evolution and

Stray Flux Distribution are subjects which will require additional work in the future.

3.8 Insulation Fluids - H. A. Pearce See Attachment 5-87-M It was agreed that only minor editorial changes were made to the

successful ballot of Project C57.121- "Guide for Acceptance and Maintenance of Less Flammable Hydrocarbon Fluid in Transformers."

6

It was also agreed that this document could be sent to the IEEE Standards Board.

Resolution of negative ballots on Project C57.111 is underway. It is hoped that resolution can be achieved thus allowing forwarding to the IEEE Standards Board.

3.9 Performance Characteristics - J. D. Borst See Attachment 5-87-N

3.10 Recognition and Awards - I). A. Yannucci See Attachment 5-87-0

3.11 Transformer Standards - J. W. Harlow Mr. Harlow stated that "All persons participating in IEEE

Standards Activities must sign the IEEE Standards Activities Acknowledgement Form within a reasonable period of time, understood to be by the second meeting, or be excluded from Standards Activities." These forms have been available at this meeting. Those who have not yet signed them have until the New Orleans Meeting to do so. He also reported that the IEEE Board of Directors voted in February, 1986 to indemnify volunteers against reasonable expenses including, without Limitation, attorney's fees and judgements actually incurred by such persons in the defense of any action associated with authorized IEEE work. The Board also agreed that standards volunteers should sign forms acknowledging that they have read and complied with the IEEE Standards Manual and related material. This too has been available at the meeting.

In addition, any transformer committee ballot sent to the IEEE Standards Board after January 1, 1987 must have a copy of the signed form for all balloted members of the Transformers Committee.

Provisions will be made at registration in New Orleans to insure that all registrants, so required, will have signed the appropriate forms .

There was considerable discussion regarding the definition of a "Participant" in the Standards Process. Those assembled favored the position that an observer in a room in which a meeting takes place is not a participant in the sense that he would not have to sign a form to be there. Only active participants in the process must sign these forms as all IEEE meetings are considered open to all IEEE members. This would naturally include all Committee, Subcommittee, Working Group, and Task Force Members among those required to sign.

Mr. Harlow's Report is contained within the minutes of the Administrative Subcommittee. See Attachments 5-87-E(1) through ( 6 ) .

3.12 West Cost - D. W. Gerlack There was no report as this Subcommittee did not meet.

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4. Reports of Liaison Representatives See Attachments 5-87-A(1) through (8)

4.1 EPRI - S. Lingren - See Attachment 5-87-P

5 . Technical Papers for Future IEEE/PES Meetings - R. A . Veitch

Mr. Veitch's report is contained within the minutes of the Administrative Subcommittee. See Attachment 5-87-E(8)

6 . New Business 8

There was no new business therefore the meeting was adjourned at 11: 10 A.M.

Respectfully Submitted,

1 7 - ' ' 1 - I "

;7 I - - i - . . . 'L - 1 I f -

John J .* Bergeron' Secretary

LP220385ESU

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John C. Dutton Enterprises, Inc. Consulting Engineering

120 Hycliff Road Rome, GA 30161 404-232-7781

April 22, 1987

ANSI C57.12.1 SUBCOMMITTEE LIAISON REPORT

Olin Compton Chairman, IEEE Trans. Corn. Virginia Power Gray1 and P.0.Box 26666 Richmond, VA 23261

Dear 0 1 in:

1.

2.

3 .

There have been no meetings of the ANSI CS7.12.1 Sub- committee since the last report.

The proposed revision of ANSI C57.12.10 (combining the present C57.12.10 & C57.12.30 standards) is now about to be sent by the NEMA ANSI CS7.12.1 Secretariat to the ANSI Board for final approval and publication (HOPEFULLY:)

I discussed this with Mr. White's secretary in the last few days, and supplied a better figure of one which was not very legible in the draft, so all now appears READY.

Sincerely, (_-

John C. Dutton

cc : C.H.White - NEMA,: K.Linsley - Westinghouse

I

L i a i son Report ASC C62 and IEEE PES Surge Protective Devices Comnittee

bY E. J. Yasuda

bY E. J. Yasuda

The following i s a brief sumnary of the Surge Protective Devices Comnittee Meeting held just prior t o the October 13-15, 1986, Transformer Comnittee

g i n Pittsburgh, PA. P i t t s b u r g h Meeting is s t i l l current. September or October ,1987.

My ASC C62 Liaison Report submitted for the The next C62 Meeting i s scheduled for

Sur e Protective Devices Comnittee Meeting (September 30 or October 3, 1986, * ANSI C62.11 on Metal -Oxide Surge Arresters f o r A1 ternating-Current Power Circuits has been approved by ANSI Standards Board and i s scheduled f o r publication i n June 1987.

The IEC proposed standard on Metal-Guide Surge Arresters has been circulated t o i t s members i n February 1987 for b a l l o t under the 6-month Rule. presently eval uat i ng the proposal e

The f i r s t draft of ASC C62.22 on Guide for the Application of Metal-Oxide Surge Arresters f o r Alternating-Current Systems was distributed t o the W.G. members for comments.

A CIGRE Proposal has been received on Cooperation between CIGRE and I E E E PES Technical Comnittees. understanding of technical work performed by the respective comni ttees deal i n g w i t h similar technical subjects. and/or Guides are not jointly developed. each of the respective committees will be designated t o coordinate the

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ASC C62 i s

,.

Being the f i rs t d r a f t , numerous revisions are expected.

The primary objective i s t o enhance mutual

SPDC had no objections a s long as Standards Under the' proposal, a Liaison from

technical activities.

The special a c t i v i t y for the Seattle meeting was a Panel Discussion on t h e Design and Testing of HVDC Surge Arresters. users and manufacturers. informative on the present status of design and testing HVDC arresters.

The panelists were from b o t h The information and discussions were very

E J Y a su da /4-2 7 -8 7 ( 2540K 1

e

.' e

0

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a - 1:EEE JOINT COMMITTEE ON NUCLEAR STANDARDS

1. M r . W. H. Mutschler, member of the Working Group on Qualification of Class 1E Transformers on Nuclear Power Generating Stations, attended the IEEE/NPEC SC-2 Committee Meeting in Washington, D.C. on October 27, 1986 to discuss their negative ballots on Draft 14 of P638. This was a marked up copy of D14 which reflected the proposed resolutions to comments received from this committee.

Dhft 15 of P638 will be sent to the SC-2 Committee Meinbers hopefully by the last week in April 1987.

He also distributed copies of Preliminary Draft 15.1.

2.

3 . Future meetings of the SC-2 Committee are: . Late April, New Orleans October, San Francisco

L. R. Stensland April 21, 1987

3

ANSI C89 REPORT

5 113187

1, No ANSI C89 meeting has been held since the last report.

2. ANSI C89.2----0- Dry Type Transformers for General Applications

o The revised standard incorporating revisions to

remove high voltage (>1.2kv) references has now

been published.

3. ANSI C89.1----- Dry Type Machine Tool and Control Transformers

o The first ballot for re-affirmation of this standard

resulted in one negative ballot. Consideration of

this negative ballot is now underway, with re-ballotting

to follow.

S. J. Antalis

a - Liaison Report

Network Transformer Protection Working Group Substation Protection Subcommittee

IEEE Power System Relay Comnittee

The las t meeting of the working group was on January 13, 1987 i n San Francisco w i t h 24 members and guests present. The meeting centered around a discussion o f the ,ballots on Draft 5 of , I' (37.122 Guide For The Protection of Network Transformers. I'

Draft 6 of the Guide was recently balloted a t the working group level, b u t the results are no t known a t this time. I t i s expected that d ra f t 6 will be approved a t the Working Group level, and then be balloted a t the sub-committee level i n July. a Since the guide i s intended t o a i d i n the effective application of relays and other devices for the protection of network transformers and other equipments installed i n the 480-volt spot network, I s t i l l believe the gulde wlll not impact the standards for network transformers.

D. R. Smith 4/20/87

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G E N E R A L @ E L E C T R I C METER AN0 CONTROL BUSINESS DEPARTMENT e

GENERAL ELECTRIC COMPANY MAIN STREET SOMERSWORTH, NEW HAMPSHIRE 03878 (603) 692-2100

A p r i l 14, 1987 CC: J. Davis

O.R. Compton Virg in ia Power Po Box 26666 Richmond, VA 23261

SUBJECT f* LIASON ACTIVITIES

Dear Mr. Compton:

I am listed as l i a i s o n r ep resen ta t ive on t h e PSIM Committee. 0. Petersons has informed me that t h e PSIM Committee has p a r t i c u l a r i n t e r e s t i n act ivi t ies of t h e Instrument Transformers Sub-Committee and the Working Group on Loss Tolerance and Measurement. He states tha t he is on mail ing lists which have .. , I

been keeping him a b r e a s t of these activit ies. Eddie Lo would be a possible replacement fo r me i n t h i s l i a i s o n p o s i t i o n , and I suggest t h a t a replacement be named.

R.C. Thomas is l isted i n t h e 1985 PES Directory as Lia ison t o the ANSI C57.13 Sub-Comittee on Instrument Transformers, and i t appears p r a c t i c a l t o cont inue t h i s appointment i f Ray is available. a c t i v i t y fo r several years.

I am listed by ANSI C93 a s Lia i son t o C57. providing swrmaries fo r (or cop ies o f ) C93 minutes f o r t h e Instrument Transformer Sub-committee, and commenting on C93 d ra f t s where there a r e oppor tun i t i e s fo r more c l o s e l y matching C57.13. composing such comments concurrent with a let ter b a l l o t on Requirements f o r Power-Line Carrier Coupling Capaci tors and Coupling Capacitor Voltage Transformers as an AmeT$can Nat ional Standard C93.1-198X.

e Mr. Petersons suggested tha t

There has been no p e r t i n e n t

My a c t i v i t i e s c o n s i s t of

For example, I am currently

., 3087E/87

G

Central Moloney Inc Transformer Division P O Box 6608

Colt Industries

April 10, 1987

Mr. Olin Compton Virginia Power Gray 1 and P. 0. Box 26666 Hichmond, V A 23261

Pine Bluff. Arkansas 71 61 i 501 152-5332

5-87 - A (1)

Liaison Report: .4NSI C57.12.2 Sub-committee on Distribution Transformers

Dear Mr. Compton:

This group has been quite active since our last meeting in .. ,,

Pittsburgh. The C57/37 Working Group has ballotted successfully a new standard C57.12.28 on Cabinet Security, which should publish in August, 1987. This same Working Croup is developing an additional document covering cabinet integrity for severe environments.

This new standard will be referenced in a l l padmount standards currently under revision, which have been delayed pending resolution of angle O F tilt questions. This will be resolved at the next meeting of the sub-cormittee at Fort Lauderdnle, and these revisions should be ballotted and sent along for approval b y year end.

Sincerely, ;' I'

Cal && Ra ppe 1 er CPR: vls

1.

2.

ATTACH

IEEE *ansfom Comaittee Liaison Report

Fort Laderdale, Florida

Stan&& Coordinating Camittees No. 4 and 4.1

Dr. M.L. Maclning

m y 11-14, 1987

by

Standards coordinating Cornnittee No. 4, H.E. Ekymers, Secy. UL Laboratories 1285 Walt W h i m Road

(20 mwbess) Pklville, NY 11747

ANSI/LF;EE Std. No. 1, "General Principles for Temperawe Limits in the Rating of E l e c t r i c a l EQuipnent and the the Evaluation of E l e c t r i c a l Insulation." Historically, this standard relates back to the basic philosophy of insulation tanperatme classification introduced by Steimmtz and Lamae in 1913.

Par t I - PLnpose and score P a r t I1 - Evaluation of Th-1 Capability of Insulating Materials' '

P a r t I11 - Par t IV - Evaluation of E l e c t r i c a l Insulation Systems.

Limiting Temperatures and their fldeasurwent for Electrical a Insulation systems.

Companion DEE Standards Publicatiuns wt.lich c q l a n e n t and expand the concerns of t h i s Guide are: ANSI/LEEE Std. 99, ANSI Std. 853,

No. 85,

ANSI Std. 943, Std. 97, IEEE Std.101-B and IEEE Std. 119.

The IEC Publications wt.lich relate to this Guide are: 216, 493, 505, 610, 611, 727, 791, 792.

SCC 4.1 Camittee,

(21 manbers) G l e n Bumie, MD 21061

Standard 943-1986, "IEEE Guide for Aging Mechanisms and Diagnostic Procedures in Evaluating Electrical Insulation Systerns."

The purpose of this guide is to present background information necessary for proper construction of aging mechanisms and selection of diagnostic procedures when designing tests for functional evaluation of insulation systans for electrical equipment.

R. J. Flaherty , Chairman, Life Cycle Engineerkg 632 Binsted mad, Glen Bumie Road

This CamrcitAe has finalized work (formerly LEEE ~ 9 4 3 ) : for ANSVLEEE

0--- - ---- tests w i t h i n their &

Thin m i i d p is Drimarily intended to aid c d t t e e s to standardize _ _ _ _ _ :ope of respmsibilities .

Aging Mechanisms and Their Verification Infoxmation Regarding Aging Mechanisms Assessment of Insulation Condition after Test or S d c e Chemical Investigations Thermal Aging Electrical Aging Mechanical Aging Evaluatiun of Test Results Lacation of Failures Diagnostic Techniques

This cdttee has also prepared EEE p97/D2 for ballot. "Standard for specifying Service Conditions in Electrical Standards ." This Standard clarifies different situations regarding usual service condi- ti-. specified. Typical of this group are standards here 40% is used for &hings, fuses, lightning arresters, protector tubes and rotential devices as marine equipmnt here 50% ambient is used. of the groups inmlved are standards for transformers, regulators and neutral-grading devices. USA and Canada appear in Appendix I. standard in specifying service condition.

It covers the group where the m a x h dient temperature is

Selection

Temperature characteristics of the This will be a most useful

, 4

IEEE/PES TRANSFORMERS COMMITTEE REPORT OF THE COMMITTEE CHAIRMAN

MAY 10, 1987 I) This has been an interesting and busy 4+ months for me. It

has also been an eventful time for the committee. I have had to write far too many responses to le rs of resignation to persons who have been 1 f our Committee. This activity reinforces need to be constantly on the lookout f not only for. our Committee ; but, also, fo ittees and our Working Groups.

At the 1987 WPM Technical Council Meeting in New Orleans in February, the prime topic was the future handling of Standar.ds. As you may know, only about half of the IEEE members have signed forms acknowledging that they have read the Standards Manual and IEEE By-Laws sections relating to Standards. There also seems to be a skirmish going on between the Board of Directors and the Standhrds Board. As a result, there is more confusion than i.s needed'in the implementation of the IEEE as an accredited Stan- dards Approval body and the concurrent member indemnification program. Incidentally, I want to assure you that all IEEE members participating in standards work are now indemnified. You will notice at this meeting we are bending over backward in our attempt to do every thing right so there will be no questions --and more important, no delays in our Standards development.

One addition point must be made. Since the naming of the IEEE as an accredited Standards Approval agency, it has become necessary that we maintain a chain of accountability for all standards related work. This means that permanent files will have to be maintained on all Project Authorization Requests and other documents pertinent to a standard's development. All Working Group Chairmen should review their files and set up any necessary permanent files and make sure they are either properly handed over to a successor to the Sub-committee Chairman, as appropriate.

,

There is some concern in the Power System Relay Committee that the T&D Committee's work on high impedance faults may be encroaching on the Relay Committee's turf. I'm sure this will be straightened out and a standard will be forthcoming promptly.

T&D bom- mittee' at the Anaheim TLD Conference has raised again the discussion of nconferencel' and Transactions grade papers. So a committee will be named to again review this ongoing concern.

After many meetings and much discussion we still are talking about how many papers can be approved for each Power Meeting. The current approach is a five year allotment schedule where the Committees' Technical Papers Chairman can develop his individual schedule just so long as he doesn't exceed his five year total

In the wake oh the "special paper session" by thd

6 Chairman's Report

\ \ O

-2- 5-87- [3 p z allotment of pages in the Transactions.

The T&D Conference was Very Successful with 1 0 , 3 3 5 registrants from 56 countries.

Video equipment will be available in.New York at the 1988 WPM f o r Technical Sessions and Committee Meetings on a trial basis.

The Technical Session Improvement Committee is advocating that the Technical Paper Chairmen review all visual material to be used in a paper presentation prior to approving a paper.

The Technical Council voted to make an annual award to the Outstanding Working Group of each Committee.

There have been some changes in the involvement of EEI rep- resentqtives in the development of IEEE Standards. EEI plans to designkte one or more PES Technical Committee members , who are employed by companies which are EEI members to act as EEI Liaison to the Technical Committees. This person has only one vote and may vote as he see fit.

From the Standards Coordinating Committee comes word that the log jam of C37 and C57 documents is getting straightened out. However, in the future, if a document is held up too long in ANSI: perhaps, we should try to have it published as an IEEE , 0 document.

a

h

Chairman’s Report

5 a 7 - C p l b Q Z

0 1EEEWPM.RPT

1987 WINTER POWER MEETING REPORT

IEEE/POWER ENGINEERING SOCIETY

TRANSFORMERS COMMITTEE

February 3, 1987

MEMBERSHIP

The Committee's membership remains stable; however, the recent closing of two major transformer plants will undoubtedly impact on the membership of some industry members. It appears, coincidentally, that the user and consultant membership group is increasing. An analysis of this trend is planned in 1987.

MEETINGS

The 1986 Fall Committee, Subcommittees, and Working Groups Meetings were held in Pittsburgh, PA , October 12-15, 1987 with normal attendance in excess of 150 engineers. The Spring Meeting will be held in Fort Lauderdale, FL on May 10-13, 1987. Other future meetings include New Orleans, November 1-4, 1987; Washington, DC, April 10-13, 1988; and Long Beach, CA; Fall, 1988.

OFFICERS

New officers, as follows, were selected for the 1987-1988 cal- ender years:

CHAIRMAN VICE-CHAIRKAN/Technical PaDer Coordinator

Olin R. Compton Robert A. Veitch Virginia Power-Grayland Ferranti-Packard Transformers Box 26666 121 Industry Street Richmond VA 23261 Toronto, Ont., Canada M6M 4M3 (804) 257-4852 (416) 762-3661

SECRETARY STANDARDS SUBCOMMITTEE CHAIRMAN/Standards Coordinator

John J. Bergeron James W. Harlow , Louisiana Power and Light Co. Siemans-Allis 1010 Commerce St. P.O. Box 6289 New Orleans LA 70114 Jackson, MS 39208

In addition, Robert E. Lee, Pennsylvania Power and Light, 1005 Brookside Road, P.O. Box 3328, Wescosville, PA 18106 was appointed Chairman of the Dielectric Tests Subcommittee and W.N. Kennedy, Gen- eral Electric Co. 100 Woodlawn Ave., Pittsfiefd MA 01201 was appointed Chairman of the new HVDC Converter Transformers and Smoo-

(504) 587-6770 (601) 939-0550

hing Reactors SubCommittee.

ACTIVITY

A s we assume others are, we are somewhat confused with the many comunications, etc. from the Standards Board and Staff. We are, however, making plans to conform to whatever rules and regulations may be put forth, so that such action will impact the important work of Standards development as little as possible.

TECHNICAL PAPER SESSIONS PLANNED FOR WINTER MEETING

Two five paper sessions are planned for the 1987 Winter Power Meeting.

GENERAb

The Committee remains in good condition and is a credit to the Society and 'the Institute.

Respectfully Submitted,

olin R. Compton, &airman 0 IEEE/PES Transformers Committee

L i a i son Report

Network Transformer Protection Working Group Substation Protection Subcomi t tee

IEEE Power System Relay Comnittee

The las t meeting of the working group was on January 13, 1987 i n San Francisco w i t h 24 members and guests present. The meeting centered around a discussion of the,ballots on Draft 5 o f , " C57.122 Guide For The Protection of Network Transforiners. "

Draft 6 of the Guide was recently balloted a t the working group level, b u t the results are not known a t this time. I t i s expected tha t d r a f t 6 will be approved a t the Working Group level and then be ba l lo ted a t the sub-committee level i n July.

Since the guide i s intended t o a i d i n the effective app l i ca t ion of relays and other devices for the protection of network transformers and other equipments installed i n the 480-volt spot network, I s t i l l believe the guide will n o t impact the standards for network transformers.

.. ::

0. R. S m i t h 4/20/87

COMMITTEE CORRESPONDENCE

12 March, 1987

IEEE/PES TRANSFORMERS COMMITTEE

Please Reply TO:

Olin Compton Virginia Power Grayland P.O. Box 26666 Richmond VA 23261 (804) 257-4852

TO: OFFICERS AND SUBCOMMITTEE CHAIRMEN

PROCEDURES FOR COMPLETING AND IMPLEMENTING INDEMNIFICATION

It is becoming obvious that some errors and omissions have occurred in the processes that has been used to put the indemnification of IEEE members into place. There have been mis- communications between the insurance experts, the lawyers, the Board of Directors, the Standards board, and us, the troops in the trenches .... so what's new?

Based on a long, long discussion at the Technical Council Meet- ing at the Winter Power Meeting, the following is my understanding of the current status:

. 0 The Standards staff have received many completed IEEE STAN- DARDS ACTIVITIES ACKNOWLEDGEMENT FORMS (hereafter, A-FORM) ; however, they haven't been able to identify all of the activities in which the signers are involved.

0 The Standards staff had no idea so many people were involved.

0 The Board of Directors have decreed that to participate in a standards development meetin.9: th .e indem-lfied TFFS r s z 5 c r must have signed a valid A-FORM ...... and certify, by a s i g - nature on the meeting ATTENDANCE sign-up form, that the A-FORM has been signed.

0 There is an unresolved question related to non-IEEE members

0 None of the Technical Committees are considered to have con-

I am inclined to-feel that some of this is probably There untried matters outside their area of expertise.

who may be working on IEEE standards making bodies.

plied fully to the A-FORM completion program.

over-kill. always the tendency of volunteers to over-perfora on ne;d is

In an effort to ease the process as much as possible at the

I 5

I .

-2 - 5-87-D p z '. Fort Lauderdale meeting, We Will plan to have copies of the Stan- dards Manual, the By-laws statement and the A-FORM Indemnification forms in the packets or near-by at the Registration desk,

I will plan to be available to discuss the indemnification process and procedure in the Registration area and, later, at the Reception with individual members.

The attendees will be requested to read the necessary sections, complete the A-FORMS and turn them in to the chairman of their first Task Force, Working Group, Subcommittee, etc. meeting. Then, they will be further asked to sign the special certification ATTEN- DANCE sheet. I am asking Jim Harlow, our Standards Subcommittee Chairman and the Conunittee Officers to assist in collecting the

mitted to the Standards Office in New York after the meeting. I hope this will complete our part of the process for all of this z G e t i m t s -=t,ten5!ces ar,d tkat in %e future t ! !cy wi13. cnly ;-;; required to sign the appropriate certification ATTENDANCE sheet. We will, however, be required to police the progran to assure that new attendees read the By-laws, etc. and complete the Indemnifica- tion A-FORM prior to their participation in their first standards process meeting.

All of this process may seem, at first, to be I'Mickey Mouse stufft1. I must point out that all members of ANSI Accredited Stan- dards Committees have, ' for some time, been asked to follow basically the same procedure outlined above, as a condition of ship and no indemnification was involved. All of these conce& date back to the Hydrolevel case where ASME was sued because two volunteer members contrived to deprive a vendor of h i s rights by manipulating a standard. I was told that this was done in contradiction of ASME rules which these members claimed never to have seen. The process we're following is to assure that every one working in the standards making process under the auspices of IEEE admits their awareness of the rules. We all hope, I'm sure, that if this process is effective, the IEEE will never be faced with an tlElectraleveltl problem in the future.

It is suggested that this letter be reproduced and included i.iLth drry i u d i l h g s af agenda, ueeriilg nciices, etc. to the membership of the various bodies working on standards under your subcommittee. I suspect youall have the most up-to-date mailing lists available.

I'm looking forward to seeing you all at a most successful meeting in Fort Lauderdale in May.

Best personal regards,

0

_ - -

4 A-FORMS, ATTENDANCE certifications, etc. These W i l l then be trans-

memb

successfully

v.

Olin Compton Committee Chairman e

IC,

IEEE Transformers Committee Administrative Subcommittee

Minutes of Meeting

Monday, May 11, 1987

The minutes of the Pittsburgh Meeting were approved as mailed.

The agenda was approved as written.

Future Committee Meetings .

Future Meetings of the Committee will be:

New Orleans, LA - November 1-4, 1987 Washington, DC - April 10-13, 1988 Long Beach, CA - November 6-9, 1988 Chicago, ILL - Spring, 1989

An east coast location will be sought for the Fall of 1989 and a western location will be sought for the Spring of 1990.

Ft. Lauderdale Meeting,

Attendance at the current meeting is the best to date. Total attendance (men and ladies) is near the 200 mark. The luncheon attracted 70 people and the Tuesday night function is sold out. were well attended.

All Working Group Meetings

Committee Manuals.

a) Leo Savio presented completed copies of the host guide document for distribution.

b) Leo Savio then requested return of all comments on the Operations Manual. Sections on Identification, the HVDC Subcommittee, and Records were noted as requiring work. manual in a binder to facilitate updates to keep it current.

Leo suggested setting up the

Standards Co-Ordinating Committee

Jim Harlow distributed copies of his report on the PES Standards Co-Ord. Committee Meeting of February 2, 1987 during the WPM (Attach. No.1). report was discussed. (including non-IEEE members) must sign the acknowledgement form. next meeting this will be a part of required registration for those who have not yet signed. can simply certify that all current participants have signed the acknowledgement. This will be pursued in the future.

The It was noted that all attendees of our meeting

At the

We need to get into a posture where the Secretary

Jim Harlow distributed copies of the Audit Committee Check List for reference. (Attach. No.2). He also distributed a new Transformer Committee Project Status Report Listing dated 3/11/87, (Attach. No.3). He discussed the new format of his report which lists items by Subcommittee. He noted that he has practically no PARS and requested that Subcommittee Chairmen submit to him: 1)corrected (marked) copies of this report, 2) copies of all PARS under their Subcommittee.

Next, Jim Harlow discussed a listing of activities shown in Ray Smith's last report which were not associated with a Subcommittee on his report. After discussion it was determined that most items on this list (Attach. No.3-last page) were older ones which have been sent forward from the Transformers Committee. Follow-up was required for P745, P748, C57.12.58, C57.12.59, and P787.

Jim Harlow then presented a list of Transformer Standards which require action (Attach. No.4). report was discussed. C57.12.11 and C57.11.12 will be referred to the West Coast Subcommittee. Olin Compton and Jim Harlow will review C57.16.1958 and (37.00-1965 to determine if anyone is working on them and what is required to insure their continued existence. L. Wagnnar asked that C57.19.100 be shown as forwarded for publication.

Most noted items had work now underway. The . (37.102 will not be worked on and allowed to expire.

~ Jim Harlow also presented a list of PAR Liaison Requests from other Committees (Attach. No.5) and a list of Liaison requests made by Transformers Committee to other Committees (Attach. No.6). Some reassignments were made as noted in the attachment.

Review of Technical Council Activities

Olin Compton presented a written report (Attach. No.7). PES is developing an overall technical committee operating guide. There was also discussion of possibly going back to Transactions and Conference Papers because of the T&D Conference Problems with acceptance of a large number of "less technical" papers.

PES has decided to present an award to the outstanding Working Group of each Technical Committee upon nomination by that Committee.

Subcommittees - Activities Discussion Bushings - Loren Wagennar It was noted that bushings for use on HVDC Converter Transformers are a very special application and it was of concern whether they should be handled under the Bushing Subcommittee or the HVDC Subcommittee. these bushings require a very high degree of co-ordination with the converter transformer with primary expertise in this area residing in the HVDC Subcommittee. paper for Ad Com on this subject.

It was noted that

Loren and Bill Kennedy will work on a position

5-87- E p 3

Subcommittee Activities Discussion cont'd.

Performance Characteristics - John Borst .

John requested information regarding an "inactive members" classification due to requests which he received. It was confirmed that this did not exist and resignations would be necessary. Should individuals want to re-join later, consideration would be given. Note was made of the Loss Measurement Task Force's Sunday Meeting and a Monday time slot was requested. The next Host will arrange for this.

This prompted discussion of overall scheduling of the entire meeting with increasing problems involving difficulties of people in attending desired sessions. Members of Ad Com were requested to come to the next meeting prepared to discuss this problem.

Insulation Life - Dave Douglas Dave has been serving as a clearinghouse for Standardization of Equation Symbols. It was decided to basically accept the Symbols as proposed with a few modifications made by Dave.

He has received a relatively small amount of feedback.

Approval was received for the conducting of a Symposium on the EPRI Project on Transformer Overload Characteristics during the Spring, 1988 Transformers Committee Meeting.

Instrument Transformers - Ralph Stetson Three negative ballots were received on C57.13 There is a Joint Transformers Committee and Switchgear Committee Working Group on Current Transformers for use with High Voltage Circuit Breakers which received many negatives on a recent ballot. They are working on resolution.

HVDC Converter Transformers - Bill Kennedy Approval was given for the Subcommittee to meet on Monday morning in the place of the Working Group.

Insulating Fluids - Henry Pearce The Hydrocarbon Fluid Guide (CS7.121) only needs the assembly of a few more ballots to get a successful ballot. The Silicon Fluid Guide (CS7.111) will probably require another ballot. Gas in Oil Analysis.

He then discussed the Tuesday Symposium on

Dry Type Transformers - Roy Uplegraff The Working Group on the Dry Type Loading Guide is completing its work and in its place Roy Uptegraff requested and received approval that a new Working Group dealing with Dry Type Transformer Problems be established. will not write standards language but rather will concentrate on solving identified problems.

This group

I ?

Audible Sound - Allan Teplitzky Permission was requested to present a Symposium on the work of this Sub- committee, at the New Orleans Meeting. be used by the Subcommittee for education as well as information dissemination and feedback gathering. committee dealt with all types of transformers. and so he will correspond with the Chairman regarding special acoustic problems with Dry Types.

Dielectric Tests - Bob Lee Bob Lee discussed the Round Table Meeting on Wednesday at 1:OO P.M. dealing with Low Side Surge Requirements for Distribution Transformers.

Liaison Activities

Olin Compton will be following up on all liaison members to insure proper recognition of their efforts and that reports are filed as appropriate.

Report on Technical Paper Activity - Bob Vietch A written report was presented (Attach. No. 8) During the discussion it was noted that letter quality printers must be used for papers, reports, etc. as the dot matrix types do not reproduce adequately.

- Committee & Subcommittee Membership Review

The following individuals were nominated for Transformer Committee Membership by their respective Subcommittee Chairmen:

The Symposium was approved and will

Roy Uptegraff questioned if the Audible Sound Sub- It was agreed that.it did

John Borst: Larry Lowdermilk, GE-Hickory,

Olin Compton: Henry Pearce: Dave Douglas:

Roy Uptegraff: Allan M. Iverson, GE-Fort Wayne

Michael I. Mitelman, RTE Corp. Robert E. Lee, Pennsylvania Power & Light Co. Francis J. Gryszkiewicz, Doble Eng. Joseph M. Pollitt, Baltimore Gas 6 Elect. Donald J. Fallon, Public Serv. Elect. & Gas Jacques Aubin, Hydro Quebec

All of the nonimated members were elected to Main Committee Membership.

PES Awards: Dean Yannucci

A report was presented which covered his activities. presented at the Main Committee Meeting on Wednesday.

Awards will be

2-0

P5 New Business

1) Voting Member Designation Olin Compton discussed this concept which is being used by several other committees. In view of the balance which exists on the committee between users, special interest and manufacturers it was decided that the present system would be retained.

2) Committee Goals PES President Hissey is requesting that Committees Submit Goals. Compton asked those present to consider this and come to the next meeting prepared to discuss possible Transformer Committee Goals.

Dean Yannucci proposed that casual wear (as in FT. Lauderdale) become the norm at all of our meetings. A motion suggesting that informal wear could be used if desired with the exception of functions which would be coat and tie was defeated by a 6 to 5 vote in view of the nature of the cities which were are scheduled to visit and the attendance by others at our meetings.

Olin

3)

The meeting adjourned at 9:00 P. M.

John J. Bergeron Secretary

LP220353ESU

IEEE Transformer Committee Administrative Committee

Attendance Monday, May 11, 1987

Name

John Bergeron Ralph Stetson Dave Douglas Robert E. Lee John Borst Jim Harlow Loren Wagenaar Olin Compton Robert Veitch Allan Teplitzky Roy Uptegraff Fred Huber Leo Savio Henry Pearce Bill Kennedy

Function

Secretary Chairman, Instr. Trans. Sub-Comm. Chairman, Insulation Life Sub-Comm. Chairman, Dielectric Tests Sub-Corn. Chairman, Performance Ch Chairman, Standards Subc Chairman, Bushing Subcommittee Chairman, Transformers Committee Vice-chairman, Transformer Conamittee Chairman, Audible Sound & Vibration Sub-Corn. Chairman, Dry Types Sub-Comm. IEEE

teristics Sub-Comme

Past Chairman Chairman, Insulating Fluids Sub-corn. HVDC Subcommit tee

IEEE TRANSFORMERS COMMITTEE LIASON REPORT

STANDARDS COORDINATING COMMITTEE POWER ENGINEERING SOCIETY

FEBRUARY 2, 1987 NEW ORLEANS, LOUISIANA

t -

The PES Standards Coordinating Committee was attended by 11 of the 15 officers and designated technical committee representatives, plus 7 guests.

1. IEEE Indemnification Program:

All persons participating in IEEE Standard activities must sign the "IEEE Standards Activities Acknowledgement Form" within a "reasonable

activities. 'period of time (read: 2nd meeting) or be excluded from Standards

Clarification on this topic is in order: To protect IEEE members, the Board of Directors voted in February 1986, t o indemnify volunteers "against reasonable expenses, including without limitation attorney's fees and judgements, actually incurred by such persons in connection with the defense of any action" associated with authorized IEEE work. The Board also agreed that Standards volunteers should sign forms acknowledgktg that they had read and would comply with the IEEE Standards Manuahpd related material.

It is in conformance with the'acknowledgement dictate that we are required to sign the form which states I * . . .I have carefully reviewed (the publications) and will work within the guidelines as stated in these documents .I'

2.

3.

The present rules seem unduly onerous, such as requiring all forms t o be submitted every tima with a committee ballot. We must trust that cool heads will prevail and that formalities will be simplified.

Standards Manual Requirement for Balance.

On submissioq of a proposed standard, the manual states that no group, except those in the general interest category mai constitute 50% or more of the committee membership. This has not been a problem wfth the Transformers Committee, but the hint is made, that if necessary: Be creative in designations - we are not necessarily limited t o the three category descriptions for members of user, producer and general interest.

Audit Committee.

At the December 11, 1986, IEEE Standards Board meeting the Audit Committee was formally made a standing committee of the IEEE

r 3

Standards Board. compliance of sponsors with the IEEE Standards Manual. of the technical committees may be audited by Mr. Jim Beall in the near future. purpose.

Note: Audits were made of three subcommittees and s ix working groups which met in conjunction with the Winter Power Meeting. The results of those audits were generally very positive.

The Audit Committee is chartered to determine Each

A check list has been prepared for this

4.

A blank copy of the Standards Board Audit Committee check list is attached. group chairme using this form.

Standards Publication Status.

Transformer Committee documents extracted from status of IEEE 'Standards (updated as of March 13, 1987).

It would be w e l l for subcommittee and working to perform a "self audit" of their activity

0

Name Approved Status - Number - Active Backlog IEEE 799 Handling, Disposal/Xfmer S t B . 12/11/86

C57.13.2 Conform Test Pcdrs/Inst Trfms ANSI 4/86 (37.13.3 Gdg. Instr Xfmr Secondry Circuit ANSI 1/87 c57.95 Ldg Guide-Voltage Regulators ANSI 10/86

Not Approved or Unauthorized for Publication C57.12.00 Liquid Immersed StB 5/13/85 ANSI Hold C57.12.00d Ratio Tolerance (Supplement) StB 6/19/86 ANSI Hold C57.12.00g Supplement StB 9/18/86 ANSI Hold (257.12.80 Pwr. Distri Xfmrs, Terminology StB 6/19/86 ANSI Hold C57.12.90 Test code for C57.12.00 StB 5/13/85 ANSI Hold (37.13 Instrument Transfonner StB 6/19/86 ANSI Hold (37.13.1 Relaying Current Xfmers/Tstg StB 6/19/86 ANSI Hold N57.15 Step 6 Ind Voltage Regulator StB 6/19/86 ANSI Hold (37.110 Xfmr Capability/Non-Sins Load StB 6/19/86 ANSI Hold (37.117 Xfmr. Failure Reprting SeB 6/19/86 .Lis1 geld

PCB"

5. Electronic Publ'ishing.

A procedure which could greatly improve efficiency is underway to make possible the direct submission of documents by floppy disc or via modem. Submission must be on 5.25 inch 360 kbyte floppy disks formatted with MS-DOS. files prepared with Microsoft Word, Wordstar, Ready! and Multiplan. Hard copy will continue to be required for submitted to StB for approval.

It is sugges that contact be made wit standards office 212/867-8454 if. this is

The Standards office can also accept document

2

,

6. Awards

There was brief discussion regarding Standards Medalions. nominee can be awarded a medalion for specific work on specific standards.

A a - 7. PES Review - Standards Corner.

The Transformers Committee is to be featured in the "Standards Corner" in June, 1987.

8. The SCC has been meeting at both the Winter and Summer Power Meetings. We will not meet at this year's sum& meeting.

James H. Harlow Chairman, Standards Subcommittee

!

3

Standards Board

Aucit Committee Check L i s t

Unit Audited:

This check list is to be used as a guide in conducting audlts of Standards developing units of the IEEE.

Prior to the conducting of an audit adequata notice is to be extended to the unit or units benq audited.

1.0

2.0

! Pro> 'ect Authorization Reauest CPAE)

1.1

1.2 When i s PAR submitted?

1.3 or the submission of thc PAR?

Is a PAR being submitted for each standard activity?

A r e there an./ problems which have occured in the preparation

Notifvina 3 In i tut Suecfied for Cooroination.

2.1 Has a procedure been establiihed to carry out tne notification of components or organization (entity)?

2.2 Is form of communication to be used and response expected defined?

Does unit rnritain 8 written record of all notification and responses?

2.3

resssd interest in time a nd Notifvino oersons who have exD place of meetinn.

3.1 Is noti

3.7 How is

I e:

8

4 . 1 &re p r o c e d u r e s a v a i l a b l e which d e f i n e t h e r e s p o n s i b i l i t i e s of p a r t i e s p a r t i c i p a t i n g i n t h e s t a n d a r d development?

I

5 . Q

4.2 Is there a n y e v i d e n c e that p r o c e d u r e s d e f i n e d arc b e i n g f 01 1 owed? (use JEEE S t s n d a r d s Manual

4.3 If w r i t t e n p r o c e d u r e s are n o t i n piace , how is the u n i t achieving the o r d e r y development of t h e s t a n d a r d ?

4.4 Is a s c h e d u l e e s t a b l i s h e d ?

4 .5 Is is r e v i e w e d p e r i o d i c a l l y ?

c o o r d i n a t i o n ( c o n t i n u i n a ) .

5.1 Has u n i t e s t a b l i s h e d procedures to i n s u r e c o o r d i n a t i o n w i t h those e : :p re s s ing i n t e r e s t i n t h e s t a n d a r d d u r i n g i ts devol opment?

c o n c e r n s of those with wnom c o o r d i n a t i o n is m r i t o i n e d ? 5 . 2 Is a f a i r and e q u i t a b l e procedur , i n p l a c e or u s e d t o a o d r e s s

3.3 A r e there a n y r ecommanda t ions f o r c h a n g e s needed?

6 . 0 S t a n d a r d s ball ots.

6.1 D o e s u n i t u n d e r s t a n d p r o c e d u r e s to be f o l l o w e d i n p r o c e s s i n g a ballot on a s t a n d a r d ?

6.2 S h o u l d more i n f o r m a t i o n be p r o v i a e d on t h i s t o p i c by t h e S t a n d a r d s Emard?

6.3 Is P s i n c e r e a n d e q u i t a b l e @Mort made t o ’ r e s p o n d t o bill 1 ot comments and to r e s o l v e n c g a t i ve b a l l ots?

7.0 Other Comments.

S i g n a t u r e

To : Transformers Committee Officers and Subcommittee Chairman

Subject: Transformers Committee, Projects Status Report, May 11, 1987

Attached is a listing of the work being performed by the various Working Groups and Task Froces of the Transformers Committee, as reported by the subcommittee chairmen. Since this an attempt to reformat the information, I ask that each subcomm ee chairman review his portion f r accuracy and completeness. Please note that the columns "PAR o File Transformers Committee" and "Coordination" are blank. As I have almost no PAR copies or information on what coordination I s active, I ask that you provide these to me by June 15, so that I may use It in my summer SCC report.

Perhaps equally important is the last page listing:

1. Projects last reported by Ray Smith (April 1986) for which no subcommittee now reports activity. would not be claimed by a subcommittee complete, however, in the interest of continuity and keeping track, all are shown.

2. Projects shown on the April 15, 1987 IEEE NesCom status report for which no subcommittee now reports activity. We need a clarification on these.

For both of the above, please advise where your respective responsibilities include a project noted.

/f//DLh- # J. H. Harlow Chairman, Standards Subcommittee

JHH: oc

Attachment

C57 . 124 A.D. Kline Guide for Conducting 3/25/87 - Preparing a suitable Partial Discharge Tests on guide. Reviewing results of WG Dry Type Transformrs letter ballqt on D/2.

C57.12.60 G.L. Bowers Standard Test Procedure 3/25/87 - Preparing the standard; for Thermal Evaluation of Insulation Systems for Solid Cast and Excapsulated Distribution and Power Transf Ormers

presently balloting in subcornittee.

G.L. Bowers Task Force on Flamnability 3/25/87 - Monitoring developnents in regulations and legislation respecting flamnability and combustion toxicity.

ibcornittee: ,Jshing subcomni ttee Chairman: Loren 8. Wagenaar (614/223-2259)

I EEE ANSI WG/TF NO. No. Chairman

21 CS7 .19.09

P757 CS7.19.191

P800 (57 . 19.190

crl 0 *

PAR on file Trans

Coord. Identification corn. AS of / Status

General Requirements and . Test Procedures for Outdoor Apparatus Bushings (Rev. subcomni t tee. of ANSI C76.1)

4/8/87 - D/7 ballot of Trans. Corn. being resolved by

Guide for Loading Apparatus Bushings

4/8/87 - Work underway to have document published as part of the Bushing Application Guide.

4/8/87 - Work being done to have a Bushing Application

Bushing Application Guide

Guide to include Purpose, Scope, loading and Loading of Bushings applied to Tranformers Above Nameplate Rating.

Shbcomnittee: Dry Type Transformers Subcomnittee Chairman: Roy E. Uptegraff, Jr. (412,'887-7700)

I EEE ANSI E/TF No. No . Chairman

PAR on file Trans

Identification comn. As of / Status

P259

C57.21 R. Dudley Loading Dry Type Reactors (con tr i- bution)

A.M. Iverson Standard Test Procedure for Evaluation of Systems of Insulation for Specialty Transf onners

(37.12.01 E. Koenig General Requirements for Dry Type Distribution and Power Transformers

C57 . 96 W.H. Mutschler Guide for Loading Dry Type Transformers

3/25/87 - Provide unput to W.G. on Test Code, Shunt Reactors a applies to dry type reactors

3/25/87 - Revision and reaffirmation of IEEE Std 259- 1974. Includes reevaluating types of life test models and related methodology. A field survey is being conducted.

3/25/87 - Prepare such additions and modifications as may be necessary for inclusion of cast coil construction in the standard. Reviewing results of Trans. Comn. ballot.

3/25/87 - Revision and reaffirmation. Reviewing status of editorial revisions to DAB.

Coord.

I

Submittee: Instrument TKanSfOrmerS Subcornittee Chairman: Ralph B. Stetson (603/692-2100)

PAR on file Trans I EEE ANSI %/TF

No. No. Chairman Identification corn. As of / Status Coord.

P546 C37.13 R,B. Stetson Standard Requirement for 3/31/87 - Negative ballots on Instrument Transformers D/5 king addressed.

P356 (37.13.2 R.B. Stetson Conformance Test 3/31/87 - Published, 1986. Processors for Instrument TKanSf OrmerS

P670 J.C. Reckleff Requirement for Current 3/31/87 - Six negative ballots (Joint w/Swgr) Transformers for use with

AC-High-Voltage Circuit Working Group. Breakers

returned, to be dicussed be

P832 67.13.4 R.B. Stetson Detection of Partial 3/31/87 - A major revision of Discharge and Measurement of Apparent Charge within Instrument Transformers

the draft is planned for 1987.

c -0 -4

I

Subcornittee: Subcornittee Chairman: William N. Kennedy (413/494-2322)

HVDC Converter Transformers and Smoothing Reactors

PAR on file

I EEE ANSI %/TF . Trans No. No. Chairman Identification corn. As of / Status

W. Kennedy Dielectric Tests for HVDC 18/14/86 - Reviewing CIGRE Transformers and Reactors data.

Coord.

Subcomni ttee: Subcomni ttee:

I EEE ANSI No . No.

Insulation Life David H. Douglas (216/447-3370)

WG/TF Chairman Identification

PAR on file Trans comn. As of / Status Coord.

C57.95 W.E. Wrenn Guide for Loading Oil- 4/13/87 - Being processed by Imnersed StepVol tage and' StB. Induction Voltage Regulators

Mineral Oil-Imnersed ... IC57.91, C57 and C57.115 Transformers (IEEE 75611 combined.

C57.91 W.E. Wrenn Guide for Loading 4/13/87 - Three loading guides

D/1 being prepared.

P345 (37.100 A.C. Wurdack Standard Test Procedure 4/13/87 - Printed 1986 for Thermal Evaluation of Oil-Imnersed Distribution Transformers

A.C, Wurdack Standard Test Procedure 4/24/87 - D/1 in progress, PAR for Thermal Evaluation of Oil-Imnersed Power PES Transformers

request being circulated to

P838 C57 . 119 R.L. Grubb Recomnended Procedures for 4/13/87 - D/l0, with tutorial Performing Temperature Rise Tests on Oil-Imnersed Power Transformers at Loads

appendix and other revisions to be issued.

Beyond Nameplate Rating -n

1 - b

d ?

1 4

I . '5.

h \I 3 0 LJ L

e e

Subcomnittee: Insulating Fluids Subcomnittee Chairman: Henry A. Pearce (412/983-4335)

I EEE ANSI No. No . e799

N/TF Chairman Identification

H.A. Pearce Guide for handling and Disposal of Transformers Grade Insulating Fluids Containing pcB's (P799)

C57.106 H.A. Pearce Guides for Acceptance and Maintenance of Insulating Oil in Equipnent

67.104 H.A. Pearce Guide for the Detection and Determination of Generated Gases in Oil- Imnersed Transformers and their Relation to the serviceability of the Equipnent

P954' (37.121 H.A. Pearce Guide for Acceptance and Maintenance of Less Flamnable Hydrocarbon Fluid in Transformers

C57.111 H.A. Pearce Guide for Acceptance and Maintenance of Silicone Fluid in Transformers

PAR on file Trans corn. As of / Status

3/13/87 - Has been approved by StB. of IEEE Standards "Active Back1 og "

Is listed in Status

3/13/87 - To begin with a survey to determine which tests are being used and the frequency of use.

3/13/87 - Will proceed to rewrite sections on Scope and Field Testing Sampling and Testing sections complete Work progressing on Interpretationn Section.

3/13/87 - One negative ballot on D/7 has been resolved. to be prepared for main comnittee ballot.

D/8

3/13/87 - D/l0 received 3 negative votes in subcomnittee ballot. D/11 to be prepared for main mmitte ballot.

e

Coord .

P262 .C57.12.90 W.R. Henning Revision of C57.12.90 4/2/87 '- Deals with Voltmeter E2 e2 Section 8.3.3 connections for no-load loss .

test of 3-phase transformer. D/8 approved by main cornittee in 1985. Text to be with C57.12.90e3 above

P262 C57.12.90 W.R. Henning Addition to C57.12.90 4/2/87 - Deals with temperature El el Section 8 correction for no-load losses.

D/4 will be included as part of C57.12.98e3 above.

P262 C57.12.90e W.R, Henning Revision of C57.12.90 4/2/87 - D/8 approved by main correction of load losses for instrumentation phase angle errors. Will be inserted in general revision of Sec.9 currectly under developnent

E Section 9 cornittee in 1985. Text covers

P1098 C57.123 W.R. Henning Guide for Transformer loss' 4/2/87 - Preparing a Guide for First working on Sections 8&9, conducted under PAR-P262E. P1098 will be guide as a separate document.

Measurement Transformer loss Measurement:

P462C C57.12.00 W.R. Hennning Supplement for allowable loss tolerances and methods of loss measurements

D.J. Cash Guide for Failure Investi- 4/8/87 - PAR prepared, being gation, Documentation and circulated to PES. Discussion Analysis for Power Trans- proceeding in working Group to formers and Shunt Reactors resolve negative votes and

comnents on D/4.

Subcomnittee: Performance Characteristics Subcoinnittee Chairman: John D. Borst (314/634-2111)

I EEE ANSI No. No . P638

WTF Chairman Identification

1

L.R. Stensland Qualification of Class 1E Transformers for Nuclear Power Generating Stations

C57 . 1 8 . 10 G.C. Bryant Practices and Requirements for Semiconductor Power Rectifier Transformers

PAR on file Trans COmn. As of / Status

P786 C57.117 H.F. Light Guide for Reporting Failure Data for Power Transformers and Shunt Reactors on Electric utility Power Systems.

C57 . 21 J.W. McGi11 Requirements, Terminology, and Test Code for Shunt Reactors over 500 KVA

P785 (37.116 B.K. Patel Guide for Transformers Directly Connected to Generators

P262 C57.12.90 W.R. Henning C57.12.90e3 - Revision E3 e3 of C57.12.90 Section 8 -

"NO Load Losses and Exciting Current"

3/26/87 - Working to resolve negative ballots of NPEC on D/14. D/15.1 now out for ballot.

3/24/87 - D/4 was unsuccess- fully balloted in 1985. Major revisions required in "load loss" and "heat run" sections. D/5 scheduled late 1987.

3/16/87 - Approved by StB June 19, 1986. Now on ANSI hold .

Coord .

3/19/87 - D/4 being balloted in bG. Results of ballot to be discussed Ft. Lauderdale

3/24/87 - D/8 ballot successful with only minor comnents. D/9 in preparation for ballot of Main Comnittee

4/2/87 - D/l, complete rewrite of Section 8 being balloted in subcoinnittee. Purpose: Update requirements and extract tutorial info to be in separate . document as a guide

9 -4

subcornittee: West Coast Subcornittee Chairman: Herb Johnson (206/625-30003

PAR on file

I EEE ANSI WTF Trans

P513 C57.114 S. Oklu Seismic Guide for Power 3/31/87 - Comnents to D/15 No. No . Chairman Identification corn. AS of / Status Coord .

Transforrners and Reactors compiled and incorporated . into D/l6. W.G. to meet July 1987.

P842 C57 . 120 R. Jacohsen Loss Evaluation Guide for 3/38/87 - D/13 considered Power Transformers and Reactors Cornittee ballot.

ready for Transfomers

a7 . 93 Do Johnson Guide for Installation of 3/38/87 - W.G. did not meet Liquid Imnersed Power Transformers

H. Johnson Fire Protection of Outdoor Liquid Imnersed Power Transformers

at last subcornittee meeting

3/36/87 - Project in research phase, not yet a formal project.

L.1 0 '

Subcornittee: Standards Subcornittee Chairman: James H. Harlow (601/939-6550)

I EEE ANSI W/TF No. No. Chai m a n Identification

PAR on file Trans corn. As of / Status

P801 (57.15 J. Harlow Requirements, Terminology yes 6/19/86 - approved StB Voltage and Induction Voltage Regulators

and Test Code for Step 3/13/87 - ANSI hold

Coord . scc 18 SUB SPD

IPPSC of IAS IEC

cn, -5

’. .

9 u rp u ca \

0 W

2 /

Shown by Ray Smith April, 1986

X

X

X

X X

X X X

X

X

!

PROJECTS REQUIRING STA CLARIFICATION

Shown by NesCom April, 1987 Project

X

X

X

X

X X

X

X X X X x

C57.12.00

C57.12.00

C57.12.91

C57.110 P65

P93 P462D P637

P73 1

P732

> P745

~ 7 4 8

pa52

' P1052 i * - I

I

,I ~ 7 8 7 ' , I I

C57.12.00h C57.12.00i ~57.12.58 C57.12.59 C57.12.90b

Table 6B - Revision of Dielectric Test Require- ments for Distribution Transformers.

Sec. 5 and C57.12.90 Sec. 10 - Dielectric Tests for Transformers. Test Code for Dry-Type Distribution and Power Transformers. Harmonic Load Current Heating of Transformers. Thermal Evaluation of Ventilated Dry-Type Power and Distribution Transformers.

Transformer Impulse Tests.

8

Reason/Status/Disposition

Wording of Ratio Tolerance in C57.12.00 Sec. 9.1. Proposed Guide for the Reclamation of Insulating Oil and the Criteria for Its Use. Revision of Guide for Loading Current Limiting Reactors (37.99.

Revision of Current Limiting Reactor Standards (37.16. Guide for Conducting A Transient Analysis for Dry-Type Transformers.

Transformer Through Fault Current Duration Guide. Bushings to Operate in Gas Insulated Substations. Dry-Type Transformer Through Fault Current Duration Guide. Transformer Loss Tolerances and Measurements (C57.12.00C). Section 5.12 - Nameplates. Note (2) Table 7 - Nameplate Information. Transient AnalysisfDry-Type Transformer.

Dry-Type Transformer Thru-Fault Current Duration. Measurement.

5-,1i/d' 7 ..'

IEEE NO.

21-1976

-

513

523

545

638

785

787

800

832

838

842

ANSI NO.

C57.19.00

-

C57.114

C57.112

(37.113

(57.116

C57.19.100

C57.13.4

(257.119

(37.120

IEEE TRANSFORMERS COMMITTEE COMPOSITE LISTING OF TRANSFORMER STANDARDS

WHICH REQUIRE ACTION TO REMAIN VALID

RESP. SUB SUBJECT COMM. C".

General Requirements and Test Wagenaar Procedures for Outdoor Apparatus Bushings

Seismic Guide for Power Trans- Johnson formers and Reactors

Control of Transformer Sound Te p 1 it sky

Partial Discharge Corona Test Lee (for Liquid-Immersed) Transformers Waillancour3

Qualification of Class 1E Trans- Borst formers for Nuclear Power (Stensland) Generating Stations

Transformers Connected to Borst Generators (Patel)

Transformer Loss Measurements Borst and Tolerances (Henning )

Bushing Application Guide Wagenaar

Detection and Measurement of Stetson Partial Discharge (Corona) in Instrument Transformers

Recommended Procedures for Douglas Performing Temperature Rise (Grubb) Tests on Oil Immersed Power Transformers at Loads Beyond Nameplate Ratings

Loss Evaluation Guide for Power Johnson Transformers and Reactors (Jacobsen)

ACTION/COMMENTS

In Revision

In Revision

In Revision

Submitted to RevCom

In Revision

In Revision e Is this confused with P262, P462 ?

In Revision

In Revision

In Revision

In Revision

IEEE ANSI NO.

C57.102

- RESP. SUB COMM. C". SUBJECT ACTION/COMMENTS

~

76- 1974 Guide for Acceptance and Maint- enance of Transformer Askarel in Equipment

Pearce Recind ( ? )

593 C57.105- 1979

Guide for Application of Trans- former Connections in Three-phase Distribution Systems

Borst Reaffirmation to RevCom March 16, 1987

C57.111 Guide for Acceptance and Maint- enance of Silicone Fluid in Transformers

Pearce In Revision

C57.12.00- 1980

Standard General Rqmts. for Liquid-Immersed Ditribution, Power and Regulating Trans- f ormers

Several activities in revision

C57.12.11- 1980

Guide for Installation of Oil Immersed Transformers (10MVA and Larger, 69-287 kV Rating)

Reaffirm ( ? )

C57.12.12- 1980

Guide for Installation of Oil Immersed EHV Transformers 345 kV and Above

Reaffirm ( ? )

C57.12.58 Transient Analysis of Dry Type Transformers

?

C57.12.90e, el, e2, e3

Transformer Loss Measurements and Tolerances

Borst (Henning)

In Revision

732

731

C57.16-1958 Requirements, Terminology and Test Code for Current Limiting Reactors

C57.99-1965 Guide for Loading Dry-Type and Oil Immersed Current-Limiting Reactors (Appendix to C57.16)

Possible Action:

1. Reaffirmation - Still useful and contains no significant obsolete or erroneous information.

- - 2. Revision - Course of action when material in the standard becomes

obsolete or incorrect.

3. Withdrawal - Standards which are no longer useful or of any value.

3

5- 87- E CS)

FROM

IEEE TRANSFORMERS COMMITTEE ACTION ON PAR LIASON REQUESTS

JANUARY 1986 - APRIL 1987 OTHER IEEE PES TECHNICAL COMMITTEES

REQUEST DATE

2/6/86

REPORTING corn

DESIGNATED T W S COMM LIASON TITLE

Test Specification for Avalanche Junction Semi-Conductor Surge Protective Devices

- SPD None

e

0

Guide for Analysis and Definition of DC Side Harmonic Performance of HVDC Transmission System

Guide for Moisture Measurements and Handling in CGIT

Recommended Practices for Seismic Design of Substations

Standard Test Specification for Thyristor Diode Surge Protective Devices

Standard for Qualifying Permanent Connectors Used In Substation Grounding

Guide for the Control and Protection of H M C Transmission System

Standard Test Specifications for Gas-Tube Surge Protective Devices

Standard Test Specifications for Air Gap Surge Protective Devices

Recommended Practice for Information Management in Power Plants and Re- lated Facilities

Recommended Practice for Unique Identification in Power Plants and Related Facilities - Component Function Identifiers

2/12/86 T&D L. R. Smith

21 18/86

5/8/86

IC None

None Sub

None 5/9/86 SPI)

Sub

T&D

None 5/9/86

None 5/9/86

None SPD

SPD

6/27 I 8 6

6/27 /86

7/9/86

7/9/86

None

None PG

PG None

REQUEST REPORTING DATE COMM TITLE - DESIGNATED TRANS

COMM LIASON

8/1/86 NPE Standard for Qualifying Class 1E None Motor Control Centers for Nuclear Power Generating Stations

10/10/86 . IC Guide for Evaluating the Energy None Usage of Forced Cooling

l o / 17/86 Sub Recommended Practice for Determination W. N. Kennedy Losses in HVDC Convertor Stations

10/31/86 IC Guide for Making High Direct Voltage None Tests on Power Cable Systems in the Field

i o / 3 i / 8 6 IC Test Procedure for Impulse Voltage None Tests on Insulated Conductors

11/10/86 PSR Guide for Utility-Consumer Intertie None Protection

11/ 14/86 PG Guide for'the Rehabilitation of Hydroelectric Power Plants

None

2/17/87 PG Recommended Practice for Cathodic None Protection of Power Plant Equipment and Structures

2/24/87 Sub GIs Specifications None

/ $ T T A C I$ 5-67- E C 6 )

A T T b C H -##

IEEE TRANSFORMERS COMMITTEE COMPOSITE LISTING OF ACTIVE LIASON

WITH OTHER IEEE PES TECHNICAL COMMITTEES

TRANSFORMERS COMMITTEE DESIGNATES

TRANSFORMERS YEAR WITH TECHNICAL . TITLE OF STANDARD COMMITTEE

INSTITUTED COMMITTEE IN PREPARATION OR REVISION LIASON

1983 ? Guide for Containment of Oil Spills in L. J. Savio Transformers

1983 ? Design Tests for Distribution Surge L. J. Savio Arrest o r s

1983 ? Performance and Testing Specification L. J. Savio of HVDC System

1984 Sub Guide for Specification of HVAC D. A. Yannucci System Steady State Performance

1984 T&D Recommended Performance for Dis- D. A. Yannucci tribution Type Polymeric Insulators

1984 ? Standard for Qualification of Class L. R. Stenslan br 1E Modules for Nuclear Power Stations

1984 - ? - Application Guide for Surge Protection G. W. Iliff of Electric Generating Plants

1985 SPD Distribution Arrestor Durability and C. J. McMillen Protective Characteristics

1986 Sub Guide for Customer and Interactive J. D. Borst Power Systems (Cogeneration)

1986 SPD Requirements, Terminology and Testing Procedures for Neutral Grounding Devices

IT. iz . L e Y 1986 SPD Guide for the Application of Metal

Oxide Surge Arrestors for Alternating Current Systems

SPD Guide for the Application of Gapped 0. R. Compton 1986 Silicone Carbide Surge Arrestors for Alternating Current Systems

Y c-

YEAR WITH TECHNICAL @ INSTITUTED COMMITTEEE

1986

1986

1986

1986

?

?

0 Note:

PSR

NPE

T&D

Sub

PSR

Sub

?-

This composite

TITLE OF STANDARD IN PREPARATION OR REVISION

Digital Protective Relay System Interface Standard

Criteria for Independence of Class 1E Equipment and Circuits

Guide for Analysis and Definition of DC Side Harmonic Performance of HVDC Transmission Systems

Recommended Practice-for Determination of Power Losses in HVDC Converter Stat ions

Guide for Protection of Network Transformers

Design Guide for User-Owned Substations

TRANS FORMERS COMMITTEE LIASON

0. R. Compton

0. R. Compton

W. N. Kennedy

D. R. Smith

J. J. Bergeron

-le P

isting was extracted from severa, sources dating back to 1983. Some of it may be out dated.

longer a Transformers Committee member. omissions.

I cannot vouch for its being complete. I w i l l solicit recommendations for replacements where the name of a designate is no

Please advise where you are aware of

REF TO

2244

c5 7

C57

c5 7

cs 7

C57.13

(37.15

C62

C68

C84

C89

C92

C92

C107

IEEE TRANSFORMERS COMMITTEE

COMPOSITE LISTING OF TRANSFORMERS COMMITTEE REPRESENTATIVES TO ANSI AND.OTHER ORGANIZATIONS

- NAME TERM ENDS COMMITTEE TITLE

1988

1987

Lockout Protection W. H. McKinnon

Transformers, Regulators & L. S. McCormick Reactors

Transformers, Regulators & J. C. Dutton Reactors

Transformers, Regulators & Reactors

Transformers, Regulators 6 Reactors

Instrument Transformers R. C. Thomas 1988 1988 Regulators A. C. Wurdack

Surge Arresters E. J. Yasuda 1988 1987 High Voltage Testing Techniques L. S. McCormick

1988 Preferred Voltage Ratings for J. C. Dutton AC Systems and Equipment up to 230 KV

1986

1987 0. R. Compton

1988 R. L. Ensign

1988

1986

Specialty Transformers S. J. Antalis

Insulation Coordination Above 230KV J. C. Dutton

1988 Insulation Coordination Above P. L. Bellaschi 230 KV

1986 Use and Disposal of Askarel H. A. Pearce

Note: This listing is extracted Standards Coordinating Committee correspondence dated January 18, 1987. Please advise of any errors or omissions.

J. H. Harlow Chairman, Standards Subcommittee

IEEE/PES TRANSFORMERS COMMITTEE I

REPORT OF THE COMMITTEE CHAIRMAN MAY 10' 1987

p 1 0 4 2

This has been an interesting and busy 4+ months for me. It has also been an eventful time for the committee. I have had to

~~ ~~ write far too many responses to letters of resignation to persons who have been long-time members of our Committee. This activity reinforces the fact that we need to be constantly on the lookout for prospective members not only for our Committee; but, also, for our Sub-Committees and our Working Groups.

At the 1987 WPM Technical Council Meeting in New Orleans in February, the prime topic was the future handling of Standards. As you may know, only about half of the IEEE members have signed forms acknowledging that they have read the Standards Manual and IEEE By-Laws sections relating to Standards. There also seems to be a skirmish going on between the Board of Directors and the Standards Board. As a result, there is more confusion than is needed in the implementation of the IEEE as an accredited Stan- dards Approval body and the concurrent member indemnification program. Incidentally, I want to assure you that all IEEE members participating in standards work are now indemnified. You will notice at this meeting we are bending over backward in our attempt to do every thing right so there will be no questions --and more important, no delays in our Standards development.

One addition point must be made. Since the naming of the IEEE as an accredited Standards Approval agency, it has become necessary that we maintain a chain of accountability for all standards related work. This means that permanent files will have to be maintained on all Project Authorization Requests and other documents pertinent to a standard's development. All Working Group Chairmen should review their files and set up any necessary permanent files and make sure they are either properly handed over to a successor to the Sub-Committee Chairman, as appropriate.

There is some concern in the Power System Relay Committee that the T&D Committee's work on high impedance faults may be encroaching on the Relay Conmitteels turf. I'm sure this will be straightened out and a standard will be forthcoming promptly

T&D 'Com- mitter at the Anaheim T&D Conference has raised again the discussion of %onferenceI* and Transactions grade papers. So a committee will be named to again review this ongoing concern.

After many meetings and much discussion we still are talking about how many papers can be approved for each Power Meeting. The current approach is a five year allotment schedule where the Committees' Technical Papers Chairman can develop his individual schedule just so long as he doesn't exceed his five year total

In the wake ok the *gspecial paper session'' by the

.-

Chairman's Report

f l ? - t X M - -rf 'j -2- p L

allotment of pages in the Transactions.

trants from 56 countries.

Video equipment will.be available in New York at the 1988 WPM for Technical Sessions and Committee Meetings on a trial basis .

The Technical Session Improvement Committee is advocating that the Technical Paper Chairmen review all visual material to be used in a paper presentation prior to approving a paper.

The Technical Council voted to make an annual award to the Outstanding Working Group of each Committee.

There have been some changes in the involvement of EEI rep- resentqtives in the development of IEEE Standards. EEI plans to designate one or more PES Technical C ittee members 1 who are employed by companies which are EEI mbers to act as EEI Liaison to the Technical Committees. This person has only one vote and may vote as he see fit.

From the Standards Coordinating Committee comes word that the log jam of C37 and C57 documents is getting straightened out. However, in the future, if a document is held up too long in ANSI: perhaps, we should try to have it published as an IEEE .. document .

The T&D Conference was Very SUCCessful with 10,335 regis- e

-

'S Report

REPORT ON TECHNICAL PAPER ACTTVITTES ~ r 7 h c sf8 D l 0 4 3

/A) 1987 Winter Power Meetinn (WPM1 e I -

The WPM was held in New Orleana and there were two -ions with 4 papers per mesaion. In the review aad evaluation proceser, a total of 18 papers were submitted of which 8 were accepted. Of the 10 papera not accepted, 2 were rejected outright (RJO), 4 were rejected but would be recodered if recommended changes were made (RJR), 3 were referred to other technical c o d - and one was set aside since only one review had been d v e d by the required date.

Olin Compton, our Vice Chairman at that time, w a ~ responsible for thia work.

/B) 1987 Sllmmer Power Meetinn (SPM)

During the winter montb of this year, we received a total of 16 papers for review and evduatiolls. F k h paper was sent to four d e w e r a with a request that their reviews be returned to me by March 16 latest. Once I received the reviews and rmommendatione, it was then necenmy to review them all to determine which would be accepted for presentation and publication and which would be rejected. Since 7 of the papers received nAcceptn grading from all Feviewers, while all the others received at leaat one %?jectn grading, the decision was relatively easy to make. Of the 7 papem accepted, 4 were accepted without change, w h h 3 were accept& provided mandatory chanp, required by the reviewer, were made. The remainder of the papers wep graded RJO or RJR.

The 3 papem which were accepted with mandatory changea were returned by EEE Headquarters to the authors for reviaion. All have h changed

As 7 papem were accepted, there will be two transformer ~ ~ ~ i 0 I l d at the SPM. Both miow will take place on Thumday, July 16, 1987.

a requested and reapproved.

1 0 Selection of Reviewera

It has bem our practice to send papem to be reviewed, to the Submmittee Chairman whose mpe irr c l d to the subject matter of the paper. For example, a paper on current t d o r m e m would be sent to the Chsinaaa of the Instrument Traasformer Subcommittee. The Chairman would then dect four membem of the subcommittee to review the paper. The membem seiected, in him opinion, would be thoa who are bed able to give the paper a f i r and t d u k d l y competent review. Thia irr very good in theory, however, from my okvervation of the d e w e m selected, the old 80-20 rule comes into play. I would estimate that 20% of the membem reviewed 80?4 of the papers. This pub a very heavy work load on a small portion of our membership. I really don't have a good solution to this problem and I would welcome any and all recommendatiolls to improve thb nitnation.

I art- appreciate the effort put into the paper reviews by our membem. I know from personal experience that a good review takea coderable time and thought. When papem are sent out for review the attached M e w form (RF-2) has a deadline for receipt of reviews. For the SPM, this date was March 16, 1987. Thkr &ea me just one week to review all the recommendations and commenb and to make my deckion regarding which papers will be accepted and which will be rejected. My decision, based on the reviewer's n!commendatiolls, are sent to IEEE Headquarterr, by courier to ensure that they arrive on time.

0

ATTACH # 2 P 2

In order to have a ddent number of review8, on which to bam a final decision, it is (9) often 1peceum-y to expdite the review procedure.

If your review is dm to or at the deadhe given, pleate do not mail the review to me. @ In the electronic age, I can obtain it instantly if sent to me by FAX. My number is (416) 762-4607. Unfortnnately, 1 received a number of paper reviews after my recommendations had been mnt to IEEE Headquartem. In each of them sum, the work put into reviewing the paper was of no consequence as the decision had already been made and, of course, could not be reversed. In this work, deadlines are vital and must be met.

/Dl Meetinn of The TechuM Council Ad Hoc Pnblications Committee

Thia Coxnrnittee met in New Orleama on Feb. 2, 1987. Seven technicsil committea were represented including the T d o m e r Committee, repreuented by O h Compton. The following items were disc-

1.

2.

3.

4.

5.

The new IEEE/PES Publications Guide, dated November 1986, is now available. This guide should be c h e l y followed when preparhg technid papem. Papem which do not meet the reqpiremenb of this guide will not be Bocephed for publication.

The problem of nMulti-Partn papem was discnswd. Some authom prepare multi part papem to circumvent the 7-page Mt. It will be left up to the dkretion of the Technical Committee to judge whether there are actually two papem or one long paper in two parb. ,

The hted revision of the letter, sent to authom whooe paper haa been rejected outright, was reviewed. S~gge~tions were made for a more dirtct RJO reqom to these authom do that it is clearly undersfood that the paper has been rejected outright and that this rejection is final.

The Five Year Plan fix papers was dimmed . Based upon the 6-yecu avemge of papem presented at the SPM, our allotment was only 6 papers. However, in view of the papem reviewed and accepted, I have deduled 7 papem for the 1987 SPM. Simhr ly , we have been abtted 7 papem for the 1988 WPM in New Yo& The actual number of papem aceepted for presentation will depend more on the anality of the papem presented for review than an arbitrsry docation figure.

The mtbject of legibility was a h dimmed. High quaLity papem may be presented for rewiew, however, if the text, charts, diagrams, etc., are not completely kgibls, they will not be accepted. Only typed m a n d p t a or thooe produced by nletter quality" printem are acceptable.

a

Robert A.Veitch Vice-chairman Trandomq Coxnrnittee/TecMcal Publicatiom Co-ordinator

May 6, 1987

e

52

P T T A C H # s

IEEE Power Engineering Society

IS DEADLINE DATE F O R R E C E I P T OF T H E REVIEWS TO: 0

Reply Address:

Dear Date Sent:

The Fower Engineer ing Society would b e grateful for your a s s i s t a n c e i n reviewing t h e a t tached paper. Please review t h e paper careful ly and promptly and fill out all par t s of t h i s shee t . You a r e a s s i s t i n g t h e T e c h n i c a l P a p e r Coordinator who i s ac t ing as a n edi tor t o determine whether t h e paper should b e accepted or re jec ted by t h e Power Engineer ing Society. T h e r e i s a n obl igat ion both t o t h e author and t h e Society t o provide papers of high professional qual i ty t o t h e technica l s e s s i o n s and for permanent reference value.

IF F O R ANY REASON YOU CANNOT MAKE THIS REVIEW BY T H E ABOVE DEADLINE, P L E A S E INFORM ME IMMEDIATELY, AND RETURN T H E P A P E R AND FORMS T O ME.

To help m e t o make t h e f ina l eva lua t ion of t h e paper and t o g ive t h e author t h e b a s i s of t h e dec is ion , IT IS REQUIRED T H A T YOU P R E P A R E A STATEMENT O F 100 WORDS OR MORE T O S U P P O R T OR CLARIFY YOUR GRADING. INCLUDE IN THIS STATEMENT ANY SUGGESTIONS AND IDENTIFY CLEARLY THE SPECIFIC CHANGES REQUIRED F O R T H E ACCEPTANCE O F T H E PAPER. It is most important that you rmnain anonymous t o t h e authors so your s ta tement should b e typed on plain unsigned shee ts . Your recommendation should not b e included in your review statement .

A copy of your comments wi l l b e p a s s e d to t h e authors , so please wri te with all cour tesy and tact . Comments should b e c o n c i s e and object ive, should focus on technica l c o r r e c t n e s s and clar i ty , and should not form a d iscuss ion .

Thank you for your cooperat ion in t h i s v i t a l I E E E work. I COUNT ON YOU T O RETURN THIS FORM T O ME, WITH BOTH SIDES COMPLETED, BY T H E ABOVE DEADLINE.

- -

Sincerely ,

SPECIAL COMMENTS FROM REVIEW ON REVERSE SIDE

Paper should b e considered for P r i z e or Award

P a p e r should b e considered for Spectrum

P a p e r should b e considered for T h e Review

Paper should b e brought t o t h e a t ten t ion of t h e P E S Publ ic Affairs Counci l

P a p e r should b e referred - t o a different reviewer

- to a different Committee

Reviewer’s Signature Date

53 T- 2 (FORM RF-2)

A m c H . # i y py REVIEW OF PAPER SUBMITTED TO IEEE POWER ENGINEERING SOCIETY (Page 2)

Paper Title:

SCORING

Reference #

For e a c h of the following qualities, please give your judgment of this paper by circling the most appropriate figure. A paper does not have t o score well in all qualities t o be accepted: for example, a concise and cr i t ical summary of work in a certain field may have no originality, yet may be a valuable publication. Strike out any line which YOU f e e l is not applicable t o th i s paper. P l e a s e Note: Overt commercialism is criteria for rejection. Also prior publication, a s defined in the PES Publication Guide, may preclude acceptance of a paper. P l e a s e refer t o the Guide for complete details.

Legibility of paper and figures 5 4 3 2 1 0 Unreadable in places

Original, ingenious 5 4 3 2 1 0 Restatement of existing knowlege Advancement of state-of- the-art, significant 5 4 3 2 1 0 Insignificant

Valuable t o engineering science 5 4 3 2 1 0 Inconsequent ia 1 Valuable to industry 5 4 3 2 1 0 Impractical; commercial propaganda Technically sound 5 4 3 2 1 0 Unsound Mathematically sound 5 4 3 2 1 0 Unsound, obscure Well supported by experimental evidence or operating experience Treatment of subject thorough, complete 5 4 3 2 1 0 Incomplete Rich in engineering judgment and knowledge of- field 5 4 3 2 1 0 Amateur i's h

Clear, concise , and effective in presentat ion 5 4 3 2 1 0 Obscure, verbose, repetitive, unorganized References to prior work, complete 5 4 3 2 1 0 Inadequate Meets requirements of PES Publication Guide, satisfactory 5 4 3 2 1 0 Unsatisfactory Other qualities noted (P lease specify)

ANALYSIS

The paper contributes t o the technical knowledge in one or more of the following examples in that it (check one or more): ( 1 Presents fundamental or advanced concepts. ( ) Describes new apparatus or system application backed by tes t data and field experience. ( ) Describes proven valuable innovation. ( ) Describes a useful new technique of measurement, calculation, or design, together with practical examples. ( ) Presents a needed commentary and summary of technical knowledge not previously arranged for convenient reference. ( ) Presents useful data and experience which is of current and timely interest that reflects changes that should be made

in a new changing technology. ( ) Proposes an Institute Standard. ( ) Other examples not listed (specify). GRADING

It is recommended that the paper be (check one): ( Accepted without change. ( ) Accepted with suggested but not mandatory changes ( ) Accepted subject t o mandatory changes (REQUIRED CHANGES MUST B E CLEARLY STATED). ( ) RJR - T h e subject matter of this paper merits inclusion in PES Publications but the composition and/or text

5 4 3 2 1 0 Unproven

e

(Support with statement of 100 words or more)

a does not meet Institute standards. Revised manuscript will.be returned t o you (the reviewer) for a repeat evaluation under PES review procedure. (REQUIRED REVISION MUST BE DESCRIBED.)

considered. LEXPLANATION MUST BE PROVIDED.) ( ) RJO - The subject matter of this paper does not merit inclusion in PES Publications. Re

5

5-87- F BUSHING SUBCOMMITTEE

Report t o the Transformers Comi ttee May 13, 1987

The Bushing Committee met on Tuesday, May 12, 1987 w i t h ten members and eight guests present. Insulators has become a member of the subcommittee, Dave Payne has replaced Tom Orrock as the McGraw-Edison representative, and one member has resigned

Since the las t meeting, Bill Young of Lapp

. from the subcommittee. The current cornittee membership i s 22.

A report was given on the activit ies of the Working Group on the Bushing Application Guide. The working group held i t s meeting on Tuesday morning w i t h seven members and eight guests present. Acting chairman Wagenaar reported t h a t a let ter had been sent t o I E E E Headquarters requesting once again t h a t P757, Guide for Loading Power Apparatus Bushings, be published a s an I E E E Trial Use Guide. The request was accompanied by a l i s t of several editorial errors w h i c h has been brought’ t o our attention.

Application Guide. the purpose of establishing priorities for the working groups work:

The working group reviewed the unfinished topics i n P800 Bushing The fol lowing four items were listed and discussed for

1. Thermal loading of bushings used w i t h isolated bus.

2. Appl icat ion of bushings i n contaminated environments.

3. Thermal constants for guide for loading.

4. Maintenance.

I t was decided t h a t Items 2 and 4 would have the f i r s t p r io r i ty . Elliott,assisted by Ray Allustiarti and Loren Wagenaar, will investigate Item 2. I n a d d i t i o n t o determining the best method for specifying bushings f o r contaminated environments, the g r o u p will investigate effects of deluge systems. Bill Saxtjn and Devki Sharma will make recommendations for Item 4. Specifically, these will include recommendations for power factor measurement and cleaning.

Fred

I t was announced a t the Bushing Subcommittee meeting t h a t Fred E l l i o t t of Bonneville Power will be the Chairman of the Working Group on the Bushing Application Guide.

Work also continued in the subcommittee on the review and resolution of the numerous comments on the P21/d7 ballot. the NEMA JSC on Power Apparatus Bush ings has reviewed and agreed w i t h the new proposal for making routine tests on bushings.

Since the las t meeting,

5- 5-

0 Two other items, both invo lv ing the possible expansion o f bushing subcommittee's scope, were a lso discussed. f o r d i s t r i b u t i o n transformers i n the scope was brought up a t the l a s t meeting and discussed again t h i s meeting. for doing t h i s a t the present time.

These bushings are already included i n the scope of the subcommittee, but there may be more expert ise on t h i s subject on t h i s subject i n the newly formed HVDC Convertor Transformers and Reactors Subcommittee. DC bushings are subject t o special fiests may also be more in tegra l t o the e l e c t r i c a l design o f the transformer i n which i t i s insta l led. Another problem i s the w a l l bushings which are not r e a l l y p a r t of the transformer. It was decided t o recommend t o the Transformers Committee tha t a new working group be establ ished i n the BUshing Subcommittee t o study the special problems assoc- i a ted w i th dc bushings. Convertor Transformer Subcommi t t e e f o r information about t h i s topic.

The top ic of including bushings

It appears tha t there i s no need

be used i n convertor transformers. The other candidate i s dc bushings

One o f the f i r s t tasks would be t o ask the HVDC

3- G

MINUTES OF THE MAY 11, 1987 FORT LAUDERDALE MEETING HVDC STRESSED CONVERTER TRANSFORMERS AND

SMOOTHING REACTOR SUBCOMMITTEE

Members Present

K. Carrander H. G. Fischer J. Gertti D. G. Gillies K. R. Highton L. Jump W. N. Kennedy W. W. Stein G. Vaillancourt E. Yasuda

Members Absent

D. J. Allan C. Hurty E. T. Norton S. Oklu

Guest Present

V. Dahinden P. Iijima Q. Pham D. A. Yannucci

(representing W. Lampe, ASEA) E.H.V. Weidmann Brown Boveri Consultant Consultant Federal Pioneer Westinghouse Transformatoren Union IREQ Bonneville Power Administration

G.E.C. Power Transformers Bechtel Consultant Los Angeles Dept. of Water and Power

/

H. Weidmann AG, Rapperswil, Switzerland Bonneville Power Administration ASEA Westinghouse

The meeting was called to order at 8 : 0 5 A.M. with ten members and four guests present. This was the first meeting of the subcommittee which has developed from the original working group in the Dielectric Test Subcommittee. Prior to the meeting two individuals requested membership in the subcommittee. Les Jump from Federal Pioneer and George Vaillancourt from Hydro Quebec. welcome and we would like to encourage other individuals interested in hvdc to join.

Their contributions will be most

At the previous meeting in Pittsburgh there was some discussion regarding concern that was raised at CIGRE on the validity of the presently used separate ac and dc tests compared to a superimposed test. At that time I had volunteered to review published data on the subject. This review has been completed and was distributed to o u r members at the meeting. Members were asked to review the paper for discussion at our next meeting at the Fall Transformers Committee meeting. Briefly, the review indicated that the ac and dc fields behave independently which tends to support the validity bf the discrete tests.

1

57

area discussed at the meeting on test levels for repaired HVDC

One other topic in the dielectric Monday was the question of determining equipment. test levels of repaired conventional transformers at about 75-80% of original test voltages. The situation was noted to be slightly different for dc equipment. While impulse tests provide margin over system protective levels, dc one hour and polarity reversal tests are determined from system operational voltages. present test recommendations for both one hour and reversal voltages to establish present margins in order to insure that the reduced levels recommended for rebuilt units provide adequate margin over operating conditions. The chairman will perform this comparison before our next meeting.

Present ANSI and IEC specifications permit ac and impulse

It will be necessary to review the

Another factor which would influence the test level of rebuilt transformers is the strength of the aged insulation. Vince Dahinden of H. Weidmann AG offered to provide data which was presented to the Insulation Life Subcommittee on Tuedsay for distribution with our minutes. It was also suggested that some general guidelines might be obtained from cable manufacturers and they will be contacted before the next meeting .

The remainder of the session was devoted to a general discussion on the calculation of losses for converter transformers and reactors. This was prompted by a recent liaison with a Working Group on Power Losses in Hvdc Converter Stations chaired by Peter Lipps of Brown Boveri in the Substations Committee. At the present time that working group has prepared two papers which discuss the different published methods for calculating losses in converter transformers and smoothing reactors. One of the papers discussed was written by the University of Maintoba and presented at the Winter Power Meeting. Harmonics on Converter Transformer Load Losses." While this paper offers an encouraging technique for one particular type of converter transformer deisign - 3 phase, 5 leg core form - the procedure would need to be expanded to cover other arrangements before it could be adapted as a recommended technique by our subcommittee. It was noted that there could be two different goals for our subcommittee standard practice to evaluate proposed designs or 2) develop a method- to calculate or measure actual transformers in operation. It was recognized that to achieve the second goal would be an exceedingly difficult task. We agreed to invite the authors of the Manitoba paper to our next subcommittee meeting for a discussion of their methods and possible future work in this area.

87 WM 132-4 "Effect of

We also agreed that we can provide some worthwhile liaison with the Substation Committee on this topic rather than developing our own methods independent of their work to date.

2

0

We noted that many members had a conflict with the scheduled meeting time of our Subcommittee of Tuesday and would prefer the Monday meeting time slot of the earlier sub-committee. consequently, it is recommended that our next meeting will be at 8:OO A.M. Monday, November 2 , 1987 %n New Orleans.

Respectfully Submitted, William Kennedy Chairman, HVDC Stressed Transformers and Smoothing Reactors Subcommittee

LP220367ESU

3

A tSuck

MEETING MINUTES

DIELECTRIC TESTS SUBCOMMITTEE May 12, 1987

Sheraton Yankee Trader Hotel - Fort Lauderdale, FL

1, INTRODUCTION/ATTENDANCE

The Dielectric Tests Subcommittee met at 1 1 ~ 2 4 A.M. with 82 in attendance (38 members and 23 guests registered). Samuel K. Oklu and Bill Boettger have requested Subcommittee membership.

2. APPROVAL OF MINUTES

The minutes of the October 14, 1986 meeting in Pittsburgh, PA were approved as submitted.

3. CHAIRMAN'S COMMENTS

IEEE can now receive documents in MS-DOS in Microsoft Word, Wordstar, Ready!, and Multiplan. Hard copy is still required.

Bob Veitch is handling the paper review process. In order to speed communications, he can receive FAX transmissions 762-4507. He reported that 7 of 15 papers were accepted for the 2 Thursday sessions at the Summer Meeting, July 16, 1987.

ADSUBCOM solicits Committee Goals and suggestions for new directions that the Committee should pursue.

at gas- a J

4. WORKING GROUP REPORTS

Working Group Chairmen reported as follows:

A. Working Group on Revision of Dielectric Tests John Bergeron

The Working Group met on May 11, 1987 at 3:OO P.M. with 22 members and 26 guests present.

The minutes of the October 13, 1987 meeting were approved after correction of two typographical errors.

The Task Force met on Monday with 7 members and 10 guests present. They discussed Draft No. 4 of their document. The overall document has been prepared under Jack McGill's Work- ing Group on Revision of the Shunt Reactor Test Code. was discussion of the organization of the material into

There 0

three areas: Impulse Tests Low Frequency Tests Test Methods.

The Impulse and Low Frequency sections will be made consecu- tive to simplify the document.

As a result of discussion at the last meeting on recommended generator capacitance to obtain allowable impulse waveshapes, Richard Dudley of Trench Electric is preparing an appendix which discusses waveshape correction due to the low impedance of reactor windings as well as provides information on the selection of appropriate capacitance values for the generator. It will also reference the IEC Standard which has a generalized index on this subject.

The switching impulse waveshape will be consistent with the new transformer requirements with the maximum occurring within 200 micro-seconds of zero with a 1000 micro-second tail.

The front of wave test will not be included in the new reactor test series.

The voting procedure was discussed with permission being granted for a Working Group Ballot as well as requesting approval for the simultaneous balloting of the Subcommittee so as to bring this together with the parallel efforts of Jack -McGilf's Working Group on Revision of the Shunt Reactor Test Code. It was decided that an explanatory letter, regarding the pro and con of the proposed elimination of the front of wave requirements for shunt reactors testing, would accom- pany the ballot. It is felt this is needed to provide a basis for this decision.

DISCUSSION: The Subcommittee agreed to be balloted simultaneously with the Working Group.

Task Force on External Phase to Phase Clearances for Power Transformers

Jim Douglass

The Task Force met on May 11 with 6 of 7 total members and 9 guests present. The primary effort driving the Task Force meeting was the review of Draft No. 4 of their document. Minor revisions are to be made, of an editorial nature, to produce Draft No. 5. The Task Force requested permission to ballot the Working Group with Draft No. 5 simultaneously with the Task Force. The Task Force Chairman will research C57.12.00 to determine a suitable location for this material and this will be conveyed in the ballot.

2

5-87-H p 3

Internal Phase to Phase Dielectric Tests for Three Phase Transformers

This subject was brought to the Working Group for resolution on the recommendation of the Task Force on External Clearances. Charlie Honey presented a preliminary copy of a paper he has written, for the Southeastern Electric Ex- change, which deals with transformer insulation coordination. Included in the paper was the concept of an insulation equivalence between the switching surge withstand and a low frequency test enhancement wave of 1.3 (S.S. withstand is 1.33 times that with the enhancement waveform) which is well known to transformer design engineers. Manufacturers were surveyed in the room and the 1.33 value was agreed to be correct. With the use of 70% arrestors in conjunction with the enhanced low frequency test it was felt that proper coordination would be provided with the only exception being capacitor switching problems which primarily impact transformers with tapped windings. These facts, in conjunction with the lack of user input on any problems which may exist as evidenced by phase to phase dielectric failures, led the Working Group to conclude that as far as internal testing is concerned, the present test requirements adequately test the phase to phase withstand of a transformer. This matter will -be considered settled.

Revision of Impulse Test Guide

A Task Force has been organized to handle this work. It presently has 9 members, however, we are actively seeking a permanent chairman. This effort will be kept under the Working Group for at least another meeting. We are also looking for someone to draft a switching surge section.

Thomas Freyhult circulated a draft of a proposed section on digital techniques to those present. It was decided to send this draft to the Task Force members to develop comments and input.

DISCUSSION: Chuck McMillen stated that he felt the Routine Im- pulse Testing should be included. Sam Mehta stated that the decision had been made to not include anything pertaining to distribution - that 2 guides (Power and Distribution) would be prepared. Chuck expects that the distribution guide would be about 2 pages and that it would be a mistake to have separate guides. Charlie Honey suggested that the Routine Impulse Test be made a separate section to stand on its own legs. It was decided to insert the Routine Impulse Test in C57.12.90 and that a guide would ultimately follow into C57.98.

Stuch. 5- 87-N y

Partial Discharue Measurements on Transformer Terminals Below 115kV

This subject had been referred to the Partial Discharge Test Working Group by our Working Group. Harold Moore reported that their recommendation was to consider this as being an optional test. This will require some small revision to C57.12.00 which L. S. McCormick agreed to handle with his current task on notes to Table 16.

The meeting adjourned at 4:45 P.M.

B. Workinu Group for Revision of Dielectric Testinu of Distribution Transformers - C. V. Brown

This group met on Monday, May 11, 1987 at 1:lO P.M. with 16 members and 26 guests present. Mr. Vis Thenappas requested membership in the Working Group.

.The minutes of the October 13, 1987 meeting in Pittsburgh were approved as submitted.

Bill Henning reported on the Ballot on Draft 4 of the Routine Im- pulse Test for Distribution Transformers. Of the 63 ballots sent to the Working Group and Subcommittee members, 57 or 81% were returned. Forty ( 4 0 ) were approved, 7 approved with comments, 3 abstained and 1 was not approved.

After much discussion, the Working Group decided that Bill Hen- ning should reword several paragraphs to attempt to satisfy the comments and negative ballot.

The meeting adjourned at 2:OO P.M.

DISCUSSION: It was decided to recommend balloting of the Com- mittee after Bill's revisions are completed.

C. Workinq Group on Partial Discharue Tests for Transformers H. R. Moore

The Working Group met at 8:OO A.M. on May 12, 1987 with 15 members and 24 guests present.

The minutes of the Pittsburgh meeting were approved as written.

Task Force for Measurement of Apparent Charue G. Vaillancourt

Mr. G. Vaillancourt reported on the Task Force meeting held on May 11, 1987. The Eighth Draft of the IEEE Guide for

4

PS 5-87-N

Partial Discharge Measurement of Apparent Charge Measurement in Liquid Filled Power Transformers and Shunt Reactors has been submitted to the Standards Board for approval. Mr. Vaillancourt reported that the necessary documents were prepared and a few suggested editorial type changes were made such that all i ormation was submitted prior to the May 1, 1987 deadline.

The collection, analysis and distribution of data from tests made using the proposed guide was discussed by the working Group. It was decided that the Task Force for Measurement of Apparent Charge will collect the information and analyze it from a data standpoint only, without making recommendations as to acceptance criteria. The data will not identify users or manufacturers that submit test information. It will be distributed by the Task Force at Transformers Com- mittee meetings or upon request to users and manufacturers. The purpose of collecting and distributing such data is to acquaint users and manufact rs with the apparent charge method and the magnitude the discharges as measured by this method. The measured values will be'different from the present RIV values such that there is a need to become more familiar with the improved apparent charge measurements.

The discussion at the Working Group did indicate that some persons are in favor of establishing tentative objective limits for apparent charge measurements based on IEC experience. This will be given more consideration at the next Working Group meeting.

The Task Force will develop a format for the apparent charge data collection process and distribute it to the Working Group and others that are interested in providing data.

Task Force for Acoustic Detection of Partial Discharcre E. Howells

Mr. E. Howells reported on the meeting held on May 11, 1987.

The Task Force had obtained comments on the eighth draft of the proposed Guide for Acoustic Detection of Partial Dis- charges. Changes will be made in line with these comments including expansion of the bibliography on This subject. It appears that the ninth draft can be completed late in 1987.

The Working Group discussed the expansion of the proposed guide to include other acoustic methods such as detectors located inside the transformer case. The decision was made to complete the proposed guide based on the present method. The preparation of another document based on other methods will be discussed at the New Orleans meeting.

5

The Working Group investigated the need for partial dis-

autotransformers for voltages less than 115kV. Several persons had been contacted prior to the meeting, and it was discussed at the Apparent Charge Task Force meeting. The information has been given to the Dielectric Tests Working Group.

charge measurements on low voltage terminals of

There being no other business brought before the Working Group, the meeting was adjourned at 9:15 A.M.

5. NEW BUSINESS

Charlie Honey suggested that the Subcommittee should look into standardization and testing of free-standing 500 kV CT's. This will be an item for further discussion in New Orleans.

6. ANNOUNCEMENT

A Round Table Discussion - "Low Side Surge Requirements for Dis- tribution Transformers" will be held on Wednesday, May 13,1987, at 1 P.M.

7. ADJOURNMENT

The Dielectric Tests Subcommittee meeting adjourned at 12:19 P.M.

Robert E. Lee Chairman

REL/rel

6

OrrAC H

1.

The

Notsf

LOW SIDE

MEETING MINUTES

ROUND TABLE

May 13, 1987 SURGE REQUIREMENTS FOR DISTRIBUTION TRANSFORMERS

Sheraton Yankee Trader Hotel - Fort Lauderdale, FL

INTRODUCTION/ATTENDANCE

Round Table met at 1:QO with 27 in were:

Jim Antweiler James C. Arnold Thomas F. Bagnnan Haven Bearly Joseph D. Blacker Rao L. Boggavarapu J. V. Bonucchi Charles V. Brown Olin Compton Jim Douglass Don A. Duckett Roger L. Ensign George E. Henry I11 Philip J. Hopkinson

2. CHAIRMAN'S COMMENTS .

The Chairman stated that the purpose

attendance. Attendees

Don Hornak Calvin P. Kappeler Bill Kennedy Robert E. Lee K. Tito Massouda C. J. McMillen Jeewan Puri John Rossetti David R. Smith Stephen D. Smith Robert A. Veitch Alan L. Wilks Charles Williams

of the Round Table was to determine if there is an Industry need to address the issue.

EPRI recognized the need to investigate failures of distribution transformers. Through RP-1532, it was reported that a large number of distribution transformer failures carried a signature of primary winding layer-to-layer failure near the low side of the winding. The research determined the mechanism of the failure mode to be one of current injection into the secondary of the transformer.

Since publication of the EPRI Report, there has been considerable Industry discussion of the subject and a number of technical papers have been presented before a wide variety of groups.

The results of this meeting should be to determine the necessity to establish a Task Force, and if established, what should the Task Force be directed to do?

Chuck McMillen volunteered to make a presentation to spur discussion. Steve Smith and Jeewan Puri were requested to also make presentations. They agreed. All three presentations were interesting and enlightening and did spur questions and discussion.

3 . C. J. McMillen - SURGE CHARACTERISTICS AND PROTECTION OF DISTRIBUTION TRANSFORMERS

Chuck presented history associated with the problem and also described GE Co.'s EPRI sponsored work as well as further work done on their own.

High currents may enter the low voltage winding through:

A near or direct strike Discharge of an induced potential during lightning Arrester operation into a poor ground

He described the various winding designs and targeted the Shell Type - Non Interlaced design. Transient Network Analysis (TNA) showed that layer-to-layer failures near ground-were produced by low side surges, and that layer-to- layer failures near H1 were indicative of high side surges.

Through observation of failed transformers, an observed failure signature was a layer-to-layer failure near the low side. GE looked for magnetic explanations of the problem. Low side voltage surges did not show similar signatures. Low side current injection produced similar failure indica- tions. Conventional TNA studies didn't demonstrate corol- laries to the observations.

In the interlaced design, flux produced forces cancel each other allowing lower voltage produced stresses than in the non-interlaced design.

Chuck provided and discussed a wide variety of utility data to substantiate the EPRI/GE conclusions. Utility statistics and magnetic circuit analysis have shown that the smaller ( 2 5 KVA and below) distribution transformers are the most susceptible to this form of failure. The explanation for this phenomena is that the volts/turn decreases as the size decreases, and the susceptibility increases.

RECOMMENDATION:

Standards should set up some requirement for withstand if utilities don't install secondary arresters. A low- side surge test would provide the means to test this requirement. IEEE should require design to withstand these surges.

2

. G 7

4. S. D. Smith

Steve provided a handout with pictorial and circuit diagrams and data developed in McGraw Edison's investigation of the subject.

SOURCE OF LOW-VOLTAGE -SIDE SURGE CURRENTS

Generally Caused by Lightning Strokes

At customer load On secondary conductors On primary conductors

Surge Current Flows to Ground Through Several Paths

Complex circuit Several mutually coupled inductances Transformer is only a part of the circuit

Surge Current Magnitude Depends Upon System Parameters

Conductor type and length Transformer size and design Ground connections and resistances Customer load Surge protective devices

0

RECOMMENDATION

Surge Current Withstand Requirements

No basis for industry-wide value

Utilities should specify a current surge withstand if required for their system

IEEE Should Establish A Test Method

Standard test circuit

Include secondary cable in circuit

Test should include both balanced and unbalanced surges

-4

DISCUSSION

Chuck McMillen proposed a 5000 amp current value based on the AIEE - Central Valley Coop paper. He also corn-

mented that good pole grounding will probably reduce the probability of these failures.

Jim Arnold said that Illinois, where there is good grounding, was the first major REA problem area.

5 . J. L. Puri

Jeewan stated that Westinghouse has attempted to quantify system impedances and transformer parameters as they respond to lightning and the associated lightning induced failures.

Variables that were studied are:

Stroke Location Grounding Resistance Service Drop Length Load on the Transformer Transformer Winding Design

Westinghouse has concluded:

RELIABILITY

Transformer Failure Rates are Low

Contribution of LV Surges to Failure is Minimal

PROBLEM EVALUATION

System Parameters Have a Major Influence on Lightning Induced Surges in LV Windings

Transformer Winding Designs Are Only One Aspect in the Evaluation of the Problem

The Presently Proposed 5 kA Surge Test Is Not Justified

Interlacing Will Not Have A Significant Impact on Failure Rates

RECOMMENDATIONS

Field Data

Contribution of LV side surges to the overall failure rate should continue to be quantified

Data collection procedures should relate failures to the system conditions

4

ArtAc)., 5 - 8 7 - 3 :

a P S New Standards for Transformers

IEEE

Due to lack of data, a standard on current withstand capability is not justified

Any screening test should represent field conditions

Should Be Used As Focal Point For Continuing Study

6. Haven BearlY of Allegheny Power System provided utility perspective. He stated that a Standard 5 kA test should be developed for 50 KVA, and smaller, transformers or that LV arresters should be applied.

This opinion is based on failures that occurred in 1975 and teardown analyses that were performed in 1985. Fifty four percent ( 5 4 % ) of lightning failures were a result of low side surges.

In 1985 Allegheny Power System adopted specifications similar tc the EPRI/GE report information. The reason for changing specifications was based on the fact that transformers that passed previous tests have failed in field conditions.

7. Charlie Williams of Florida Power Corporation (FPC) provided further insight.

FPC failure rate data solidly confirms Carolina Power & Light findings. There is a difference in failure rates based on design. Teardown data has not been fully correlated. A majority of the failures carry the LV surge signature.

The estimated financial impact on FPC is $300,000 to $350,000 per year.

FPC proposes a 3 kA symmetrical and 1.5 kA unsymmetrical test, and that the IEEE needs to look at the problem.

8 . DISCUSSION

Cal Kappeler - "Is this truly that bad a problem? I don't have enough data to know if this is a problem.''

"As a Standards Group, do we impose increased cost on the Industry?"

Don Duckett - Standards have avoided the secondary surge protection issue.

5

7 0

5-87 - I

9. RECOMMENDATION

The consensus of the group participating in the Round Table cussion was to establish a Task Force with a twofold assignment:

Dis-

a. Address the issue of data gathering. Investigate the appropriate avenue to gather and analyze the data. Perhaps EEI T&D is the responsible organization.

b. Develop Standard Test Circuit(s1 and the appropriate magnitude of the LV current surge to be employed in a test to determine the LV side withstand level of distribution transformers.

10 . ADJOURNMENT

The meeting adjourned at 5:21 PM

Robert E. Lee Chairman

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6

7

6TTAc tl Minutes of Meeting

IEEE Dry Type Subcommittee 5- 87- J.

pl os 8 of the - Transformers :Committee a

The Dry-Type Transformer Subcommittee met at 1:50 PM on May 12, 1987 in the Dolphin Room of the Sheraton Yankee Trader Hotel, Ft. Lauderdale, Florida, with 17 members and 10 guests

opening remarks by the Chairman, including comments concerning the indemnity protocols (the "A" form and attendance forms), the minutes of the previous meeting were submitted for approval. An error was reported in the date of the membership list, which should be October, 1986 instead of October, 1985. After correction, the minutes were approved.

Working Group Reports

8 present. Following introduction of members and guests and

?$ $

- 1.0 Dry Type Reactor Task Force - Richard Dudley, Chairman. The Task Force met on Monday, May 10, 1987 at 8:OO AM with 5 members and 2 guests present. of this Task Force is to prepare additions or revisions, which can be incorporated into present reactor standards undergoing revision, particularly ANSI C57.21,"Require- ments for Shunt Reactors".

Following approval of the minutes of the previous meeting in Pittsburgh, PA, Draft 114 of C57.21was discussed:

1.1.1 Section 10.7.4.4 dealing with microphone placement for sound level measurement of dry-type reactors requires special consideration for the different configurations of the three coils in a three-phase reactor. The chairman proposes to rewrite this section for presentation at or before the next meeting.

1.1.2 For Section 10.3.9.2 dealing with the impulse testing of windings of low impedance, it was felt that a reference to an appendix, where further testing guidance- could be obtained, should be included. The proposed appendix submitted by the Chairman will be discussed in the Working Group on Dielectric Tests for Shunt Reactors, W. Kennedy, Chairman. This proposed appendix is based on an

The present mission

- 1.1 *

I ! appendix in IEC 722.

1.1.3 The question has been raised as to the source of the minimum impulse generator capacitance of 0.01 microfarad. This will be dealt with in W. Kennedy's Working Group and will probably be included in the . appendix on how to conduct an impulse test.

1.1.4 Section 2 . 4 . 1 deali-ng with the definition of total losses in a dry-type shunt reactor was discussed. Some minor reworking is under consideration.

1.1.5 Table 2 covering cooling air temperature versus altitude and Table 3 covering temperature rise limits gre inconsistant. Table 2 lists 55, 80, and 150 C. rise slasses for dry types. Table 3 containsoonly 80 C. rise dry type. The inclusion of a 100 C. rise class was also discussed. It was finally decided that temperature rise classes and hot spot allowances should conform to those presently contained in other IEEE standards, such as the General Requirements for Dry-Type Transformers

1.1.6 With reference to Section 6.1.5 concerning switching surge tests, it was decided that a statement should be included to the effect that such a test may be difficult to perform and maintain proper wave shape in low impedance windings.

1 .1 .7 Section 9 came under considerable discussion. The net result was that 9.1 material should be included in the introductory part of Section 10, as one possibility. Section 9 . 2 material should be included in Section 6, which deals with dielectric testing. A rethinking of the ordering of material in Section 6 through 10 is desirable. (It was subsequently decided by the Shunt Reactor Working Group that these sections would be renumbered, the general part on testing will be given its own number, which will reference two tables that will be incorporated in the standard separating dry-type testing from oil-type testing. Similarly, other sections on testing will be renumbered according to their test category.)

1.1.8 Section 10.3.3.2 describing the turn to turn overvoltage test was discussed. Two small changes are recommended. The 7200 cycles of overvoltage should be more clearly defined and the reference to the voltage distribution characteristic along the winding should be deleted.

1.1.9 There should be added to Section 10.3.6.6 on impulse wave polarity that, with dry-type shunt reactors, the test wave will be of positive polarity unless otherwise specified.

- 3 - 5-87-J

P 3 1.1.10 The Chairman proposes to present to the C57.21

Working Group an appendix dealing with the application of dry-type shunt reactors. 8

- 1.2 The Chairman agreed that he would coordinate all inputs to the Working Group on Shunt Reactors (J.W. McGill) and the Task Force on Dielectric Tests (W.N. Kennedy)-and send a redraft of the proposed standard to the members of the Reactor Task Force as soon as available.

- 2.0 Working Group on Insulation Requirements for Specialty Transformers (IEEE Std. 259-1974, Reaffirm 1980), A l a n Iversen , Chairman.

- 2.1 This Working Group met at 8:OO AM on Monday, May 11, 1987, with 9 members and 7 guests present.

- 2.2 Following introductions, the minutes of the October 13, 1986 meeting in Pittsburgh, PA, were distributed, read, and approved as written.

A survey was published in the January issue of Electrical Insulation Magazine. The survey asked readers to indicate which thermal evaluation standards they used and the types of test models in current use. G. Zguris summarized the results. The responses indicated a need for a number of revisions of IEEE 259. A need for a specification of a standard test model was also indicated.

Draft 111 of P259 was distributed. A number of revisions were discussed including a proposal to revise the title of the standard, recognizing this may be difficult to accomplish. Revision of the Foreward and of dielectric tests was also discussed.

- 2.3

e - 2 .4

- 2.5 Draft 112 of P259 will be prepared for balloting in the Working Group before the next meeting. The meeting was adjourned.

Working Group on Standards for Dry-Type Transformers Incorporating Solid Cast and/or Resin Encapsulated Windings, Egon Koenig, Chairman.

- 3.0

- 3.1 The Working Group met Monday, May 11, 1987 with 21 members and 10 guests. Mr. V. Thenappan was added to and Mr. E. Edwarc resigned from the Working Group membership. The minutes of the previous meeting held October 13, 1986 in Pittsburgh, PA, were approved as submitted.

IC

3.2 -

3.3 -

a

3.4 -

3.5 -

3.6 -

3.7 -

- 4 -

The results of the ballot of the Transformers Committee on PC57.12.01 Revision #3 were given as follows:

Approved 60 Approved with comments 9 Not voting 21 Not returning 19 Not approving 1 Total returned 91

"I 3

A review of Revision #3 of PC57.12.01 followed in an attempt to not only resolve the negative ballot but also to correct typographical, grammatical, and other errors to ensure that nothing of importance was overlooked. Of particular significance were the following:

3.3.1

3.3.2

3.3.3

3.3.4

3.3.5

Due to

Remove dates from the following referenceu guides: ANSI C57.94, C57.96, C57.98, C62.2'and IEEE Standard 99. Mr. John Dutton agreed to provide the date for ANSI C84.1.

Page 4, Sections 4.1.4 and 4.1.5 - Use the original language as in C57.12.01-1979 issue.

Page 19, Tables 4a and 4b - Add clarification to state that these tables do not recognize the different hottest spot differentials that may exist in certain designs.

Page 20, Sectiog 5.11.3*2 - Add temgerature rises for classes 130 C., 155 C., and 185 C. Mr. John Dutton agreed to propose appropriate language.

Table A 1 - Add lOOk and 125k to dry-type classes AA, AA/FA, and AFA with appropriate 24-hour average ambient air temperature in degrees Celsius.

time shortage, the Working Group interrupted its vork for lunch and-reco-nvexied frvm l:is tu 2 : 3 > 3 M when the review of Revision 83 was completed.

As a result of the foregoing discussions, two negative ballots were withdrawn.

Comments received from Dr. Stein (written in German) will be reviewed by the Chairman and acted upon as may be required.

Revision #4 will be issued in the near future, reflecting the changes agreed upon during this meeting and will be submitted to ballot by the Transformers Committee.

3.8 -

4.0 -

4.1 -

4.2 -

4.3 -

5 . 0 -

5.1 -

The Chairman thanked the Working Group members for their support and counsel, which resulted in a productive and constructive meeting. There being no further business, the meeting was adjourned.

The Working Group on the Dry-Type Transformer Loading Guide (PC57.96) met at 3:OO PM on Monday afternoon with 18 members and 14 guests present.

The Chairman announced the results of the ballot sent to the members of the Transformers Committee as follows:

Ballots sent 105 Ballots returned 91 Affirmative ballots 68 Not voting 19 Negative ballots 4

The 4 negative ballots were subsequently resolved as follows:

4.2.1

4.2.2 The fourth negative vote concerned standardization

Three negative ballots were resolved by editorial changes.

of symbology. It was agreed to change symbols in the Guide as proposed. a

4.2.3 The total affirmative votes were then raised to

The successful completion of the balloting of the final draft provides now for submitting the revised Standard C57.96 to the Standards Board. There being no other business, the meeting was adjourned.

Working Group on Dielectric Problems - Don Kline, Chairman. This Working Group met Tuesday, May 12, 1987 at 8:OO A M . with 14 members and 13 guests present.

7 2 or 100% of responding ballots.

The Task Force of this Working Group has a ballot cn Draft #3 of Recommended Practice for Measuring Partial Discharge in Dry-Type Transkormers, presently in circulation to members of the Working Group. Although the final results of the ballot will not be available until the expiration of the voting period, it was nevertheless reviewed including review of comments received to date.

- 6 -

5 . 2 -

5.3 -

5.4 -

6.0

6.1

6 . 2 -

Draft #3 is intended to follow the format of the docwent developed for partial discharge measurement with liquid-filled transformers, IEEE P545. Mr. Ben Allen has agreed to review the portions of Draft 113 taken from P545 with intent to. check for errors and discrepancies.

The review of Draft 113 concerned mainly the test connections for applied voltage and induced voltage tests. It was suggested that manufacturers use this draft and report their experiences and recommendations to a fourth party for review. Mr. Me11 Manning has agreed to serve as the fourth party, providing both anonymity for the manufacturers participating and providing an analysis of-the data for the Task Force.

Draft #4 will be circulated with a ballot co the Ury- Type Transformer Subcommittee before the next meeting. There being no other business, the meeting was adjourned.

Working Group on PC57.12.60, "Standard Test Procedures for Thermal Evaluation of Insulation Systems for Solid Cast and Resin Encapsulated Power and Distribution Transformers" - Chairman, Mr. George Bowers. The Working Group met at 11:15 AM, Tuesday, May 12, 1987 , with 1 2 members and 11 guests present.

This meeting was devoted entirely to a discussion of the results of a combined Working Group and Subcommittee ballot.

6 . 2 . 1 The results of the ballot are tabulated below: Working Group Subcommittee

Ballots mailed 18 22 Affirmative 14 1 6 Negative 1 1

0 1 3 4

Abstain No response

% Returned % Voting % Affirmative

83 100 93

8 2 94 94

6 . 2 . 2 Comments on two affirmative votes were resolved by editorial changes and one comment was withdrawn.

7 7

- 7 -

. 2 . 3

6 . 3

7.0

- - 7.1 -

8 . 0 - 8.1 -

5-87. J

e The one unresolvable nega'tive vote related to the following statement in the Foreward of the proposed standard: "The Working Group was unable to define an existing insulation system to use as a control for comparison with an insulation system under test; therefore, an arbitrary extrapolation criteria of 40,000 hours was selected for evaluation". It was argued that this 40 ,000 hours being unsub- stantiated was in violation of scientific protocals and did not deserve to be a component of a standard. Following much discussion, it was decided to proceed as follows:

(a) Submit the proposed standard to ballot by the Transformers Committee to obtain a larger universe for input of comments and possibly other negative votes.

objections, including the resolution of the forementioned presently unresolved vote. In the case of the latter, it is proposed that the Subcommittee would petition the Transformers I Committee to accept the recommendation that the Standard be accepted as a trial-use document under the protocols established in the Transformers

(b) Undertake the resolution of Loments and

e Committee Operations Manual.

There being no other business, the meeting was adjourned.

Task Force on Flammability and Toxicity - Chairman, Mr. George Bowers.

Because there was no time left before lunch, it was decided to postpone this meeting until the next meeting of the Transformers Committee in November, 1987.

Working Group on Dry-Type Transformer Through-Fault Current Duration Guide - Chairman, Roy Uptegraff. The Chairman reminded the members of the Subcommittee that this Guide had been passed on to the Standards Board's Standards Review Committee, which has suspended action pending revision of the Loading Guide, which, in turn, is by reference an essential component in the determination of overcurrent performance. PC57.96, has met the requirements for submission to the Standards Board, it is expected that both documents may proceed jointly through the final approval process.

Now that the Loading Guide,

r' 63T719C 5-87. J - 8 -

3 8 - 9.0 Following the above reports, the Chairman reiterated

that the liability indemnification procedures will require all meetings to use the prescribed IEEE attendance form. Further, it was pointed out that each participant in the standards making process should complete the "IEEE Standards Activities Acknowledgment Forms" (the A-Form), until or unless the Board of Directors may require other procedures. Presently, this is a one-time only requirement.

- 10.0 Next, the Chairman reviewed the status of all the active projects of the Subcommittee, noting certain corrections proposed by the members. It is intended to send this revised summary to all of the members of the Subcommittee and to the Chairman of the Standards Subcommittee.

- 11.0 The next item of business concerned the formation of a Task Force or Working Sroup under the zfiairuaiisf-iiu df Bill Mutschler to examine the problems that have been arising concerning the thermal characteristics of Dry- Type Transformers and Reactors. These include questions concerning different new thermal classes of insulation systems, hot spot allowances, derivation of thermal time constants, IEC harmonization, etc. Acting on a motion that such a group be organized, the Subcommittee gave its unanimous approval.

- 12.0 The Chairman then reviewed an outline of the steps required in the generation of a standard. Following a discussion, which included making some corrections, it was proposed that copies of this outline be distributed to all the members of the subcommittee.

- 13.0 Finally, the reaffirmation of IEEE-ANSI C57.91-1982, "Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers", was presented for action. Since this is an IEEE sponsored document and a product of the Dry-Type Subcommittee, it was incumbent upon the Subcommittee to endorse its reauthorization. A motion for rckaffirmation was properly made, seconded and approved by the members present to reauthorize issuance of this standard. (This action was subsequently endorsed by voice vote of the members of the Transformers Committee at their meeting the next day, May 13, 1987).

14.0 The Chairman made a brief announcement of the intent of - ASTM to form a task force to deal with the problems of excessive sound levels arising from dry-type transformers. At present, the Chairman has consented to attend the first meeting, although there is a question as to whether this is an appropriate activity for IEEE (or NEMA) participation ,.

15. 0 The meeting w a s adjourned a t 3 : O O P . M.

G E N E R A L .@, J E L E C T R I C

METER AND CONTROL BUSINESS DEPARTMENT GENERAL ELECTRIC COMPANY MAIN STREET SOMERSWORTH, NEW HAMPSHIRE 03878 (603) 692-2100

REPORT OF INSTRUMENT TRANSFORMERS SUB-COMMITTEE, 5/13/87

The Instrument Transformers Sub-committee met Tuesaay, May 12, 1987, with 10 members and 1 guest present.

The minutes of the October 14, 1986 meeting were approved, with e d i t o r i a l

I n regard t o the Switchgear-Transformer Jo int Working Group on

corrections.

Requirements for Current Transformers f o r use with A.C. High-Voltage C i r c u i t Breakers, P670, i t was reported tha t both the Instrument Transformers Sub- committee and Switchgear had returned a number o f negative b a l l o t s on Dra f t 6 dated 12/22/86. Compilations o f these responses t o the b a l l o t were received Monday, May 11, 1987. During the May 12, 1987 meeting, these compilations were d i s t r i bu ted t o the Working Group members present, and t o other members o f the Sub-committee expressing i n te res t . i n preparation f o r a fu ture meeting o f t h i s Working Group. M r . Reckleff, Working Group Chairman, has expressed the i n ten t i on o f convening a meeting, possibly a t New Orleans i n November.

This mater ia l should be o f assistance

--

The major e f f o r t i n the May 12, 1987 meeting was the attempt t o resolve negative b a l l o t s on P546/05, the l a s t d r a f t o f the complete rev is ion o f C57.13. The Sub-cornittee addressed a l l o f matters i n question and arr ived a t a de f i n i t e pos i t i on on a l l i tems except one. d i e l e c t r i c t e s t requirements f o r instrument transformers for use on systems o f 230 kV and above. surge requirements be shown f o r such instrument transformers, where as 10 second wet withstand values were shown i n the d r a f t (as i n C57.13-1978). withstand tes ts a t these voltage leve ls are not shown, t o my knowledge, i n any IEEE transformer or bushing standard except C57.13-1978. t h i s matter brought out t ha t various Sub-Committee members questioned the adv i sab i l i t y of specifying switching surge tests, and tha t the t e s t l eve l s woula also be i n question. invest igate these questions, and tha t the Chairman would request i npu t from some o f the Transformer Committee members with extensive background i n development o f transformer and bushing d i e l e c t r i c t e s t standards.

The remaining question i s on

The negative b a l l o t involved had advocated tha t switching

Wet

Our discussions i n

I t was agreed tha t the Sub-committee members would

3167E/87

5- g 7 - L Meeting Minutes

Insulation Life subcommittee of the

IEEE Transformer Committee

Fort Lauderdale, Florida May 12, 1987

$-- t Yankee Trader Hotel i

1

i

~\

The Insulation Life Subcommittee met on Tuesday, May 12, 1987 1O:OO a.m. A total of 70 were in attendance consisting of 27 members and 43 guests.

After the introductions were made the minutes of the previous meeting in Pittsburgh on October 14, 1987, were approved as issued and attendance and indemnification sign-up sheets were circulated.

The following pertinent items, discussed at the Administration Subcommittee meeting, were reviewed:

1. Subcommittee members were informed that they may be asked to review PES technical papers and that they should be prompt in returning their review sheets. If time is short, they may be sent via Tele-copy.

2 . Great progress is being made in the effort of standardizing equation symbols found in both ANSI and IEC loading guides. A proposed set of standard symbols was presented at the Pittsburgh meeting, and already, through the efforts of Jacques Aubin, I E C has adopted most of the symbols in their revised loading guide for oil filled transformers, which is about ready for printing. Bill Mutschler has also agreed to revise the symbols in the dry type loading guide revision, which is ready for the IEEE Standard Board. We are now very close to our goal of loading guide symbol standardization.

3 . The extremely important EPRI Project on bubble evolution during transformer overloading (where conductor temperatures exceed 140OC) has now come to an end. A final report will soon be issued to EPRI by Westinghouse.

Stan Lingren of EPRI elaborated on this subject indicating that an EPRI Workshop will be scheduled for late this year to review this report.

The Insulation Life Subcommittee is now planning to sponsor a Symposium on the results of this EPRI Project and any Workshop inputs at the 1988 Spring Meeting in Washington, DOC.

The first workincr aroup geRort was criven bv Bill Wrenn, Chairman of the Workincr GrOUR on Guides for Loadinq.

e 1

Bill reported that the Working Group met at 8 a.m. in the P' Gulfstream A room, with 26 members and 29 guests present. Two new members, C. R. Hoesel, Arizona public Service-Co. and J. D. Blackmer, Consumers Power Co. were added to this Working Group.

Following the normal mechanics of opening the meeting, approval of minutes, agenda, introductions, etc. the meeting moved quickly along.

Jacques Aubin reported that I E C 354 is under the Ifsix months rule" which permits only editorial changes and requests comments from the various "Nationall* groups . ~57.95, the loading guide for regulators, has had the intial galley proof review, and is momentarily expected for fianl review - -

prior to printing.

Bill reported that the efforts to revise and combine C57.91, C57.92 and C57.115 have been given to four task forces. The proposed guide outline was used as the basis of the following task force assignments:

General - (Section 3) - John Mathews - Chairman Loading of Distribution - (Section 4) - Dave Takach - Chairman Transformers

Loading of Power - (Section 5) - Jerry Grimes - Chairman Transformers

Appendicies - Dan Perco - Chairman Some of the sticky problems to be addressed in the guide revisions are 1) stray flux heating effects, 2) bubble evolution and 3) winding resistance correction and hot spot gradient values.

Reports of varying detail were provided from each group. Chair" requested submission of the initial effort from each group by July so these may be duplicated and provided to the membership for comments prior to the New Orleans meeting.

The subject of equation symbol standardization was discussed at great length. Dave Douglas is coordinating this effort for ANSI and I E C loading guides.

Various questions from the floor were answered and the meeting adjourned at 9:15 a.m.

The second workina Qr our, rer,ort was aiven bv A1 Wurdack. Chairman of the Workincr Grour, on Thermal Evalua tion of Power and Distribution Transformers, which met on Tuesday Morning, May 11 at 8:OO a.m. with an attendance of 7 members and 19 guests.

"The

A 1 reported on progress made in the preparation of a Guide for Thermal Evaluation of Power Transformers. 0

2

P

The initial PAR submitted for this project was lost and finally it was decided we should submit a second application which has now been done.

Chuck McMillen got the effort finally off the ground by preparing inserts for the existing ANSI CS7.100 guide for thermal evaluation of Distribution transformers.’ These inserts were procedures and commentary based on recent EPRI projects R&D for Thermal Evaluation of Power Transformers.

Bill McNutt presented his comments on Chuck McMillen’s inserts.

Dean Yanucci commented that; if more detail was added on the construction of sub-assembly models, they could represent both core and shell transformers and transformers with a wide range of mVA size up to several hundred mVA. Dean then agreed to provide his version of this added detail.

It was requested that other manufacturers add their comments to these inserts to the existing guide especially McGraw Edison who also builds both shell and core designs.

After some discussion it was generally agreed that dielectric tests, specified in the guide inserts, will be performed at room temperatures and at an appropriate time after aging tests to assure that free gases will be absorbed into the oil. After a bit more active discussion the meeting was adjourned.

The third workincr group that was scheduled to report was that on Thermal Tests. However, Bob Grubb, the Chairman of that group, at the last minute found he could not attend the Transformer Committee Meeting due to personal problems and, therefore, the working group meeting was cancelled.

Progress on the finalization of the new guide for factory overload testing, which is now in its tenth draft, will be delayed until its next meeting.

With the time remaining, two presentations were made to the Subcommittee on two timely subjects:

Vince Dunhinden of EHV Weidmann of Switzerland made a follow-up presentation to one he had given to the Subcommittee about a year ago, on major research work that EHV Weidmann is doing on various transformer insulations including ttAramidtt insulation materials aging. parameters on aging.

These included the effects of moisture content and other

Vince indicated that all of the results of this major research effort will be summarized in a book to be published soon entitled I’Transformer Board IItt.

The second presentation was given by Ed Norton, Consultant, on a direct reading hotspot device that is now on the market. Specifically this is the ItLuxtron.devicei8. His presention was

3

V I 1 ( 7 L m

5-874 PY informative and brought us up-to-date on what is

in this area. He indicated that this device has been on about 20 new transformers to date and can be

also very happening installed retrofitted on existing transformers.

The Subcommittee Meeting was adjourned at 11:lO a.m.

Respectfully submitted,

DHD : l m s

David H. Douglas Chairman Insulation Life Subcommittee

4

5-87-m

IEEE TRANSFORMERS COMMITTEE INSULAT ING FLU IDS SUBCOMMITTEE

Henry A. Pearce, Chairman

Minutes of the Subcommittee Meeting held 11, 12 May 1987 in Fort Lauderale, Fla.

Members Present

G. Bryant J. Corcoran M. Frydman D. Gillies F. Gryszkiewicz F. Heinrichs P, Hoeffler C. Hoesel B. Hunter. J. Kelly

Guests Present

K. Carrander, ASEA Trans. 0. 0. Chew, McGraw-Edison R. Garcia, PROLEC S. Kennedy, Niagara Trans.

T. Lipscomb R. Lowe C. Hiller R. Musil W. Mutschler T. Orbeck H. Pearce L. Savio

. D. Sundin L. Wagenaar

W. Saxon, Duke Power T. Shkordoff, Shkordoff Associates G. Woollerton, SYPROTEC

0 The Insulating Fluids Subcommittee met on Monday and Tuesday, 11 and 12 May 1987, with 20 members and 7 guests in attendance.

1.

2.

3 .

4.

5 .

The Minutes of the October Meeting in Pittsburgh, Pa., were approved.

Membership changes:

Mr. Otto Keller has resigned from the Subcommittee. Messrs T. Shkordoff and G. Woollerton requested membership on the Sub- commit tee. Mr. Dennis Johnson requested membership on the Transformers Committee.

Attached is an updated membership list of the Subcommittee.

The Chairman announced the appointment of F. W. Heinrichs as Secretary of the Subcommit tee.

Project C57.121 Guide for Acceptance and Maintenance of Less Flammable Hydrocarbon Fluid in Transformers: The Transformers ballot on this project was reviewed, the negative ballots resolved, and comments addressed. The Subcommittee voted to have the editorial changes made and the document sent to the Standards Board.

Project (257.106 - Guide for Acceptance and Maintenance of Insulating Oil in Equipment: The new survey upon which the revisions and updating of the Guide W i l l be based was presented to the Subcommittee by Frank Gryszkiewicz. Changes in the survey were recommended and it was approved for release.

49 gl3

, A T T A C H .

5-137- m INSULATING FLUIDS SUBCOMMITTEE MEETING MINUTES - Page 2

6. P r o j e c t C57.111 - Guide f o r Acceptance and Maintenance of S i l i c o n e F l u i d s : The n e g a t i v e b a l l o t s and commenis r ece ived from the Transformers Committee b a l l o t on t h i s p r o j e c t were reviewed. which is t o be pe r sona l ly reso lved by Tor Orbeck. The Subcommittee voted t o complete t h e a p p r o p r i a t e r e v i s i o n s and comments, and then con t ingen t upon t h e r e s o l u t i o n of t he f i n a l n e g a t i v e b a l l o t , the f i n a l d t a f t will be c i r c u - lated by M r , Orbeck t o the Subcommittee and then t o the S tandards Board fo l lowing t h e r equ i r ed approval of t h e Subcommittee.

There is one ou t s t and ing nega t ive

Lu;( .ckMB 7. P r o j e c t C57.10 Guide: The new d r a f t on t h e s e c t i o n s on Scope and

F i e l d T e s t i n g were reviewed, and a new d r a f t was reques ted .

The Task Force on t h e Revis ion of S e c t i o n 6 , which cove r s i n t e r p r e t a t i o n , m e t on Monday af te rnoon t o make f i n a l p r e p a r a t i o n s f o r t h e p r e s e n t a t i o n of Dra f t 3 of t h i s s e c t i o n t o t h e Subcommittee, and t o p repa re f o r t h e Symposium t o be presented on Tuesday, 12 May. The Subcommittee d i scussed D r a f t 3 on Tuesday, 12 May, and approved t h e p lans of t h e Task Force f o r p repa r ing a f o u r t h d r a f t which w i l l i nc lude :

8.

9.

10.

a. Major changes i n t h e procedures t o be employed by t h e u s e r i n h i s a p p l i c a t i o n of the a n a l y t i c a l methods p re sc r ibed when combust ible gas l e v e l s are obtained which exceed i n c r e a s i n g s t a g e s of concern. The t a b l e l i s t i n g the l e v e l s of concern and the corresponding gas c o n c e n t r a t i o n l e v e l s a r e being developed by t h e Task Force.

b. A Fac to ry Loading Tes t Procedure was proposed f o r i n c l u s i o n i n Dra f t 4 of

Id-* %-4" q eduled Symp s i m on the r e v i s i o n of C57.104 - 1978 was

presented by Leo Sav io ' s Task Force on Tuesday, 12 May 1987; approximate ly 100 members a t tended . The Symposium covered th ree p r i n c i p a l a r e a s of C57.104, Sec t ion 6 - I n t e r p r e t a t i o n , which are be ing r ev i sed and prepared f o r a f o u r t h d r a f t . These are:

a. Recogni t ion of t h e gas s ing problem.

b. Analys is and ope ra t ing procedures .

c. Fac tory loading tes t procedures .

d . Computer a i d s , ca se h i s t o r i e s , and u t i l i t y exper ience u t i l i z i n g C57.104.

New Business: The Chairman expla ined t h e new requirements f o r p a r t i c i p a t i o n i n the S tandards a c t i v i t i e s a s d i r e c t e d by the S tandards Board, and c i r c u - l a t e d t h e acknowledgement forms c e r t i f y i n g t h a t t h e member of t h e Subcom- mittee who i s o f f i c i a l l y working on Standards documents has read and under- s t a n d s t h e by-laws r e l a t i n g t o S tandards . The importance of t h e s e procedures , e s p e c i a l l y wi th regard t o indemni f i ca t ion , were d i scussed . A l l members i n a t tendance s igned t h e a p p r o p r i a t e forms.

There w a s no f u r t h e r bus iness b e f o r e t h e Subcommittee and the Chairman adjourned u n t i l t h e next meeting on 1 November 1987 i n New Or leans , Lou i s iana .

3 June 1987

I.

TI.

111.

PERFORMANCE CHARACTERISTICS SUBCOWITTEE Fort Lauderdale, Florida - May 12, 1987

MEETING MINUTES

ATTACH.

P' 5-81- N

I~RODUCTIOI/ATTENDAI?CE

The Performance Characteristics Subcommittee (PCS) met at 1:50 p.m., on Tuesday, May 12 with 34 members and 42 guests registering their attendance.

APPROVAL OF MINUTES

The minutes of the October 14, 1986, PCS meeting were approved as submitted.

CHAIRMAIII'S RENARKS

Dave Smith submitted a Liaison Report concerning C57.122, Guide for the Protection of Network Transformers (Attachment PCS-A). He believes that the guide will not impact the standards for network transformers.

There was no liaison report concerning Oil-Immersed Surge Arresters (C. HcMillen).

There was no liaison report concerning P1109, Design Guide f o r User-Owned Substations (J. Bergeron).

At the Administrative Subcommittee, several items of particular interest to W.G. Chairmen were identified:

1) The IEEE Standards Board has created an audit checklist (Attachment PCS-B) for conformance to the preferred development process for standards. The Standards Subcommittee (J. Harlow) has established a reformatted Projects Status Report (Attachment PCS-C); W.G. Chairmen should review this carefully f o r additions or corrections.

copies of any PAR'S that they have.

2 )

3 ) The W.G. Chairmen are requested to submit (to J. Harlow)

REV COM has confirmed receipt of Reaffirmation of C57.105-1978; June IEEE Standards Board action is anticipated (Attachment PCS-D) . Two schedule changes are proposed for the Fall meeting:

1. WG Loss Tolerance and Measurement (Henning) from 10:05

2. TF Loss Measurement Guide (Mehta) from 3:OO p.m., Sunday, a.m., Monday, to 3:05 p.m., Monday.

to 10:05 a.m., Monday.

of 9

PERE'ORPWYCE CHARACTERISTICS SUBCOMnITTEE Borst

PCS membership changes include: W. Lampe - resigned E. Chitwood - resigned 0. Keller - resigned D. Truax - resigned S. Oklu - added at meeting B. Ward - added at meeting G. Hall - dropped R. Johnston - dropped

PCS membership now stands at 51.

IV. AGENDA CHANGES

lo agenda changes were identified.

V. WORKING GROUP (WG) REPORTS

The WG reported as follows:

1. Semi-Conductor Rectifier Transformers - G.C. Bryant, Chairman.The working group met at 8:OO a.m. and 10:05 a.m., at Fort Lauderdale, Florida. There were 18 members and 5 guests present. Minutes of the Pittsburgh meeting were approved. It was decided to continue with two working group meetings at each transformer meeting. Draft t 5 of CS7.18.10 was discussed

Charlie Pounds of Dow Chemical Co. made a proposal on determining total losses and the test current to use for heat mn tests. The method involves using:

1) The present method in CS7.18 2) Manufacturers division of winding eddy current loss and

other stray loss 3) Calculations of the effect of harmonics on winding eddy

current loss described in a paper by Ram, Forrest and Swift, "Effect of Harmonics on Converter Transformer Losses**, presented at the Winter, 1987, P.E.S. meeting.

It was suggested that a fixed division of winding eddy current loss and other stray loss was preferred. The manufacturers will be polled to see if this ratio can be fixed. Otherwise, Draft 116 will contain the method outlined above.

Other discussion of Draft l fS was on Circuit 29 which was removed from Draft 6 2 . It was found that this circuit is still in use. It will be added to Draft IC6. The combined circuits 25 & 26 will also be added to Draft %6. The short circuit test was discussed, but no change was agreed upon.

P E R F O ~ C E CHARACTERI STI cs SUBCOMMITTEE Borst

P 3 \

Draft 56 will be balloted before the next meeting.

2. Transformer Reliability - D.J. Cash reporting f o r H . F . Light, Chairman

The WG met briefly on Monday, May 11, at 3:OO p.m., in Fort Lauderdale, Florida, with 14 in attendance. Don Cash filled in for Chairman Harold Light, who was unable to attend due to company travel restrictions.

On March 13, 1987, Harold Light wrote a letter to E. Paul Lange, "Secretary of Standards Review Committee", requesting the status of project 57.117-Guide for Reporting Failures .... As of May 4, 1987, he had received no reply. IEEE Standards Board meeting of June 1986. It is now to be submitted to the AMSI Accredited Standards Committee C57. When approved by them, it will be turned over to the Manager of Standards Publications.

The document has approved at the

3. alification of Transformers f o r Class 1E Application in Nuclear Power Stations - L.B. Stensland, Chairman

The Working Group met on Monday, May 11, 1987, with two members present. The minutes of the October 13, 1986, meeting were approved as written.

H r . W. H. Mutschler attended the SC-2 committee meeting on October 27, 1986, to try to resolve the negative ballots by these members on D14 of P638. As a result of this meeting and subsequent comments received, these concerns were incorporated into D15.

Draft IC15 of P638 was issued for ballot on April 24, 1987, to each member of the WEC/SC-2 conrmittee. Ballots are to be returned by June 5, 1987.

4. Transformers Directly Connected to Generators - B.K. Patel, Chairman

The W . G . met at 1:OO p.m., on Monday, with 8 members and 12 guests present. submitted.

The minutes of the previous meeting were approved as

Draft %9 was balloted in both the Main Committee and the PCS. All ballots returned were either approved, approved with comments or not voting.

Draft b10 will incorporate comments received and will be circulated within the W.G. only. If no problems.are encountered, Draft 1/10 will then be submitted as the approved document.

A T T A C H 5-87. N

PY Page 4 PERFORIJUNCE CHARACTERISTICS SUBCOMMITTEE Bors t

5. Test Code for Shunt Reactors - J.W. McGill, Chainnan This working group met at 3:OS p.m., on May 11, 1987, in Fort Lauderdale. There were nine (9) people present at this meeting: Seven ( 7 ) members and two ( 2 ) guests. Hr. Kjell Carrander from ASEA Transformers and Hr. Klause Papp from Spezlelektra requested membership. people. Pittsburgh minutes were approved.

This makes a total membership of nineteen (19)

Draft #4 was balloted previous to this meeting within the Working Group and the results were as follows:

Approved - 2 Approved with Comments - 9 Not Voting - 3 Negative Vote - 0

Ballots Not Returned - 3

All the major comments were discussed in detail during the meeting and the approved corrections were added to the draft. numerous editorial corrections that were also made. Some of the major corrections involved the following:

There were

Corrected Tables 2 6 3 with regard to dry-type shunt react or3 . Expanded Tables 7A & 7B describing test requirements for shunt reactors. Eliminated the "smoke 6 bubble" phrase for failure detection. Added positive wave polarity preference for dry-type shunt reactor impulse testing. Removed reference to secondary windings on diagrams shown on Figures 4, 5 b 6. Modified microphone location diagrams for sound level tests to be more applicable to self-cooled shunt reactors. Added two (2) items required on nameplates: winding material and type of oil used.

The Chairman requested information to complete this standard from the Chairmen of both Dielectric Test and Dry-Type Loading Task Forces. Once this information is finalized, Draft #5 will be written to incorporate all comments, corrections and other information. It is hoped that Draft CS will be sent out for balloting prior to the next meeting. intention to ballot both the Performance and Dielectric Test Subcommittees all at one time.

It is the working groups'

6. Failure Analysis - D.J. Cash, Chairman The working group met at 1:OO p.m., on Monday, May 11, with 19 members and 15 guests present. approved as presented, & Light, was added to the WG.

The previous meetings minutes were One new member, Dan Crofts of Texas Power

PERFORMANCE CHARACTERISTICS SUBCOHHITTEE Borst

1 $L & P f - r Q+f- The task force met in Detroit on February 5 6 6, 1987, and produced Draft N4 of the "Guide for Failure Investigation, Documentation, and Analysis for Power Transformers and Shunt Reactors". This draft was distributed for ballot to the WG with the following results:

38 ballots sent out to WG members 21 ballots returned 18 approved 2 not approved 1 not voting

The WG was asked to consider a comment on Para. 4.1 that the liability issue be clarified. During discussion, the document scope was reviewed and with some changes, it was felt that it could resolve these concerns.

The negative ballots included comments that the case histories did not support the main document. on the purpose and usefulness of case histories. The group felt that even though the case histories do not fully support the document, some relevance could be obtained by pointing out where the guide could have helped.

There was considerable discussion

Another negative ballot contained a list of electrical tests to which the WG could suggest practical and working limits. the experts insights to the meaning of these test results would be very helpful. best placed in the appendix and not in the body of the guide. This again because of the possible problem of liability. force and WG will attempt to gather some of the information.

Some of

It was felt that this type of information might be

The task

During our working session, we walked through the document to see if we could add to it or subtract from it. Some suggestions were made and were noted for inclusion at the next TF meeting.

The TF will meet again in August to prepare Draft if5 and ballot again at the WG level.

7. Loss Tolerance and Measurement - W.R. Henning, Chairman The WG on Loss Tolerance and Measurement met on Monday, May 11, at 10:05 a.m., with 20 members and 31 guests present.

5-%7- N PS

The WG first discussed the ballot results of a Performance Characteristics Subcommittee ballot on Section 8 of the test code CS7.12.90. Section 8 is the section on "Wo-Load Losses and Excitation Current." Of all the ballots sent out, 77% were returned, and of those voting, 89% approved the proposal. There were six negative votes.

PERFORllAlJCE CHARACTERISTICS SUBCOnnfTTEB Borst

One reason for the negative votes was dissatisfaction with the constant KT in the formula proposed to correct no-load losses ho the reference temperature. standards. For example, the temperature correction factors for insulation power factor are known to be approximate, so the following statement is made: measured at a relatively high temperature and the corrected values are unusually high, the transformer should be allowed to cool and the measurements should be repeated at or near 20'C". suggested that similar wording be added to the proposal f o r the temperature correction of NL losses so that in the case of controversy, the no-load loss test could always be repeated at or near the reference temperature.

Two precedents were cited from present

"When insulation power factor is

It was

The second example from present standards is the note with the formula for wave form correction of no-load losses. That note suggests that values of 0.5 per unit be used f o r eddy and hystersis losses if actual values are not available. suggested that a similar statement be made for temperature correction of no-load losses; that the factor of 0.00065 be a suggested value to be used if actual values are not available.

It was

These statements need to be added because it is recognized that the correction formula is only an empirical estimate.

It has also been suggested that the temperature correction only be made if the oil temperature exceeded 30°C, but the WG felt it was preferable to make the correction all the time to avoid a discontinuity at the point where you would or would not make the correction.

Another subject discussed was the terminology to be used in the section; whether to use the term no-load losses or excitation losses. According to the IEEE dictionary, (IEEE Std. 6 0 1 , both terms are equally acceptable. CS7.12.80, Terminology for Power and Distribution Transformers, defines it as no-load losses with excitation losses in parenthesis. It was felt that the terminology used in Section 8 should be consistent with CS7.12,80. This concluded the discussion on Section 8.

While the proposal f o r Section 8 is in the stage of balloting, Section 9 is being rewritten by the Loss Measurement Guide Task Force. This is the section on load loss and impedance tests. One item of controversy was a proposed limit of 5% on the total correction for phase-angle error. (If more than 5% correction is required, then test methods or apparatus should be improved.) Not everyone agreed to this; which led to a discussion of calibration of loss measurement systems. NRC has developed a current-comparitor loss standard that could be sent from installation to installation t o compare loss test facilities in a round robin test series. Measured losses would be compared to the loss standard after all corrections for

It was pointed out that Eddy So of

4

..’

5-87- n/ P 7 Page 7

PERFORIUNCE CHARACTERISTICS SUBCOWITTEE Bors t e

VI *

VI a

VI1 <

I X .

phase-angle, etc. are made. It was suggested that the WG Chairman write to EPRI to elicit their interest in sponsoring a round-robin program.

At the PCS meeting it was suggested that, if possible, sections 8 and 9 be combined in one ballot.

Also at the PCS meeting, Chainnan Henning noted the PSIH Committee was willing to create a Guide for Digital Wattmeters for Low Power Factor Measurement. By a show of hands, approximately 20 people indicated an interest in such a guide.

PROJECT REPORTS

1. LTC Position Indication - Unassigned Someone is needed to coordinate this project. Anyone interested should contact the PCS Chairman.

2. Nameplate Information Change Request - J.W. Matthews

The proposal to added “Directed Flow” to the nameplate is still on hold pending input from the Loading Guide W.G.

3. Routine Resistance Test - C.J. HcMillen

Ballot results were reported (Attachment PCS-E). to resolve the 6 negative ballots. how the design test results are applied to subsequent production tests.

Efforts continue It may be necessary to specify

OLD BUSINESS

There was no old business.

NEW BUSINESS

B. Pate1 asked for and received comments concerning the switching of transformers using disconnect switches.

L.S. McCormick pointed out that three separate revisions to Table 14 of C57.22.00 were underway and confusion could result.

NEXT MEETING

The next meeting will be held on Tuesday, November 3, 1987, in New Orleans. The meeting was adjourned at 2:55 p.m.

John D. Borst - Chairman 4 223e-skh

Report to Performance Characteristics Subcumittee

Balloting on Project PC 57.12.00K Table 14.

f 8

Revision of ANSI C57.12.00-1980, Table 14, to Make Resistance Measurements a Design Test for Three-phase Distribution Transformers Rated 501 to 2500 kVA.

The results of balloting for this proposed revision are as of May 8, 1987.

Ballots Mailed = 123

Perf.Char. Transformer Corn. Subcommittee T.Com & S.C.

No. x No. (Not T. Total % Comm.Mbrs.)

Approve a5 81.7 10 95 80.5 Not Approved 4 3.85 2 6 5.1

No Return 11 10.6 Abstain 4 3.85 -e- 4 3.4

13 11.Q

Totals 104 1oox 14 iia 100%

2 -

No Longer Mem. 5 5

Total 109 123

Approval of Returned Ballots...91.4% 83.3% 90.5%

May 8, 1987

4

IEEE STANDAROS OFFICE 5-97- N THE ~ N S I N T E OF ELECTRICAL AND ELECTRONICS ENGINEERS, INC. 345 4 n H STREET, NEW YORK, N.Y. 10017.2391, U.S.A. TELEX 236111 p.

April 23, 1987

Mr. J.H. Harlow Siemens Energy & Automation, Inc. Power Components Division Post Office Box 6289 Jackson, MS 39208-1289

DIRECT NUMBER 412) 7057960

Subject: Project C57.105-1978: Application of Transformer Connections in Three-phase Distribution Systems, Guide for (Reaffirmation)

Dear Mr. Harlow:

We are in receipt o f the submittal for consideration as a Reaffirmation. After a review by the IEEE standards staff to determine the completeness o f the submittal, arrangements will be made for the preparation and circulation of the pertinent documentation to the members of the IEEE Standards Review Comii ttee ( RevCom).

Action will be taken by RevCom at its meeting on June 10, 1987, and their recommendations will be submitted to the IEEE Standards Board which meets the following day.

Secretary, Standards Review Cornittee

TO : John Bergeron

FROM: D. A. Yannucci

SUBJECT: Report of Awards Subcommittee

PRIZE PAPERS

The Transformer Committee had a nomination in each of the following three PES Award Categories: Also listed below are the PES Award Winners.

1. Prize Paper

Nominated from Transformer Committee "Mathematical Modelling of Bubble Evolutions in Transformers" By W. J. McNutt, T. 0. Rouse, and G. H. Kaufmann

PES Award Winner "Dielectric Withstand Levels of some 735 Kv Air-Blast Circuit Breakers Under Both Direct and Synthetic Out-of-Phase Interrupt- ing Tests" By M. Landry, G. St - Jean, R. Jeanjean and B. Khodabackhchian Submitted by: The Switchgear Comanittee c 2. Workinit Group Recognition - Standard or Guide

Transformer Committee Nomination "Guide for Transformer Through Fault-Current Duration", C57.109-1984

PES Award Winner "IEEE Standard Definition, Specification and Analysis of Systems Used for Supervisory Control, Data Acquisition and Automatic Control", C37.1-1985 Substations Committee

3. Working Group Recognition - Technical Report Transformer Committee Nomination

"Recommended Dielectric Tests and Test Procedures for Converter Transformers and Smoothing Reactors"

PES Award Winner "Corona and Field Effects of AC Overhead Transmission Lines - Information for Decision Makers" TbD Committee

) ; t r incH 5- 87- 0

PZ

A Certificate of appreciation was presented to Me1 Manning for his distinguished service to the Transformer Committee.

Also the Transformer Committee Award for prize paper was presented to W. J. McNutt, T. Rouse, A. G. Kaufmann for their paper that was submitted for the PES Prize Paper Award.

An Outstanding Service Award was presented to C. J. McMillen for his Exemplary Service to The Transformer Committee.

D.A.Y.

LP220385ESU

‘i7

EPRl Memorandum Electric Power Research Institute

May 15, 1987

To: Mr. J.J. Bergeron Secretary, IEEE Transformer Committee Louisiana Power & Light Co. P.O. Box 60340 1010 Common Street New Orleans, LA 70160

From: Stan Lindgren, Project Manager

Subject: EPRI LIAISON REPORT

The following is a corrected version of my report presented May 13, 1987 for inclusion in your minutes.

1. EHV Converter Transformer

Insulation Model tests are near completion.

Test results thus far confirm 25% or greater size reduction can be attained.

2. Amorphous Steel for Distribution Transformers

3.

GE shipped 25 and 50 KVa commercial sale transformers in 1986. , O W @ * Allied has significantly improved their yield.

/' An Allied announcement is expected soon regarding a new production facility.

Amorphous Steel for Power Transformers

Improved fl tness, edges, pnd greater width is expected.

500 KVa unit has been shipped and i s expected to be in service May, 1987.

Automated cutting and stacking equipment purchase is planned for -or early 1988.

B-4- --+

4

2 5-81. P

S heed 2

4. Improved Grain Oriented Silicon Steel for Transformers

One contract is in early proposal stage.

A second proposal has been delayed.

Significant loss reduction is expected from the combination.

5. Adyanced Power Transformer ,

load loss feasibility has been demonstrated.

Detailed analytical studies are underway exploring individual design aspects.

6. Static Electrification in Power Transformers ? * \ A 3 d--" Suspected failure mechanism in@ f)*J?f+ FOA transformers. 0% 3 Ir3/1Li. ? * "

4 basic physical mechanisms and variable parameters ,have been identified . Work is now focused on monitoring instruments and quantification of parameters for mathematical models.

e 4 1 6 2

7. Bubble Evolution in Overloaded Transformers

J' Rapid load changes can cause bubble formulation under .ds*.* strength.

some conditions and reduce 60 Hz and impulse dielectric

Report is in draft stage, expected to be published within a few months.

Workshop is planned for late 1987 to discuss the report.

Demonstrated in models with rapid/high O.L.

ff i': I'

Power Transformer with Two-Phase Cooling

75% perchlorethylene, 25% oil

J' 65 mva unit went into full service October 31, 1986.

5 - 8 7 - P

9.

10.

11.

3

Active Transformer Noise Cancel lation System

2-year project started March, 1987.

Noise reduction in one direction is being pursued first.

Feasi bi 1 i ty for Improved LTC

One project focuses on conventional electromechanical and ways to minimize maintenance and transformer failure.

One project focuses on feasibility of total solid state LTC and static phase shifters.

Power Transformer Loss Evaluation Seminar

Is in early planning stage

Expected to be held late 1987 or early 1988.

Please put me on the m ions of future meetings. Thanks.

SRL:sf:BERGERON

C : Stig Nilsson Olin Compton

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