guide for high-voltage circuit breakers

8/18/2019 Guide for High-Voltage Circuit Breakers

1/12

ANSI C37.06.1-2000

American National Standard

Guide for High-Voltage Circuit BreakersRated on Symmetrical Current BasisDesignated “Denite Purpose forFast Transient Recovery VoltageRise Times”

Approved 03/30/00

American National Standards Institute, Inc.


2/12


3/12

ANSI C37.06.1-2000Page i

Approval of an American National Standard requires verification by ANSI that the

requirements for due process, consensus, and other criteria for approval havebeen met by the standards developer.

Consensus is established when, in the judgment of the ANSI Board of StandardsReview, substantial agreement has been reached by directly and materiallyaffected interests. Substantial agreement means much more than a simplemajority, but not necessarily unanimity. Consensus requires that all views andobjections be considered, and that a concerted effort be made toward theirresolution.

The use of American National Standards is completely voluntary; their existencedoes not in any respect preclude anyone, whether he has approved the standardsor not, from manufacturing, marketing, purchasing, or using products, processes,or procedures not conforming to the standards.

The American National Standards Institute does not develop standards and will inno circumstances give an interpretation of any American National Standard.Moreover, no person shall have the right or authority to issue an interpretation ofan American National Standard in the name of the American National Standards

Institute. Requests for interpretations should be addressed to the secretariat orsponsor whose name appears on the title page of this standard.

CAUTION NOTICE: This American National Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, or withdrawthis standard. Purchasers of American National Standards may receive currentinformation on all standards by calling or writing the American National StandardsInstitute.

AmericanNationalStandard


4/12

ANSI C37.06.1-2000Page ii


5/12

ANSI C37.06.1-2000Page iii

FOREWORD (This foreword is not part of American National Standard C37.06.1-2000)

Following reports of circuit breaker failures in applications where very fast TRVs were determined to be thecause, and after thorough analysis of TRV data gathered from all parts of the world, this guide wassuggested by the IEEE Switchgear Committee’s Task Force on Transient Recovery Voltages. The task forcesuggested that another class of definite purpose circuit breakers was needed for fast TRV applications.Circuit breakers designated as definite purpose for fast transient recovery voltage rise times applicationswould be subjected to special fast TRV parameters during both Test Duty 2 (30% of rated short-circuitcurrent) and Test Duty 1 (7% of rated short-circuit current) trials, to demonstrate the capability to interruptcircuits characterized by fast inherent TRVs. A few words of clarification are in order:

• No fast T 2 values or tests are proposed for fault currents greater than 30% of rated short-circuitcurrent.

• The proposed fast T 2 values were chosen to meet 90% of the known fast TRV circuits, but eventhese fast values do not meet the requirements of all fast TRV applications.

• A circuit breaker that would meet the requirements for definite purpose for fast TRV rise timesapplications may or may not also meet the requirements for definite purpose circuit breakers forcapacitor switching.

It is the purpose of this guide to communicate the suggested values to those in the industry who areinterested and who would be in a position to offer comments and suggestions for further revisions.

Table 1B contains values for circuit breakers designed and tested to the circuit breaker ratings contained in ANSI C37.06-2000, Table 1. These circuit breaker ratings have a rated voltage range factor (K) equal to 1.0.

Tables 2B and 3B contain values for circuit breaker ratings contained in ANSI C37.06-2000, Tables 2 and 3.

This guide was initially approved as a “trial-use” guide in 1997. Experience with the trial-use document sincethen has been favorable, and the document is now approved for more general use as a guide. Only minoreditorial revisions have been made to the guide, plus suitable revisions to the text of this “Foreword.”

Comments and suggestions relative to the revision of this document should be sent to:


6/12

ANSI C37.06.1-2000Page iv

Organizations Represented Name of Representative

Electric Light and Power Group ........................................... D.E. GaliciaJ.L. KoepfingerG.J. MartuscelloY. MusaE. Worland

Institute of Electrical andElectronics Engineers......................................................... T. Burse

K. Gray

A. MonroeB. PuckettT.E. RoysterR. Garzon (Alt)J.G. Wood (Alt)

National Electrical Manufacturers Association ......................................................................... G. Jones

W. LongT. OlsenG. SakatsD. StoneE. Byron (Alt)

International Electrical Testing Association ......................................................................... A. Peterson

National Electrical Contractors Association ......................................................................... D. Harwood

Testing Laboratory Group .................................................... P. NotarianE. Roseen

Tennessee Valley Authority J Nelson


7/12

ANSI C37.06.1-2000Page v

CONTENTS Page

Foreword.....................................................................................................................................................iii

1 Scope..........................................................................................................................................................1

2 Purpose.......................................................................................................................................................1

3 References .................................................................................................................................................1

4 Rated values...............................................................................................................................................1

TablesTable 1B—Transient recovery voltage parameters fast time-to-peak (T 2 )

values for definite purpose indoor circuit breakers with voltage rangefactor K=1.0 ....................................................................................................................................2

Table 2B—Transient recovery voltage ratings fast time-to-peak (T 2 ) valuesfor definite purpose circuit breakers 72.5 kV and below, including

circuit breakers applied in gas insulated substations.....................................................................3

Table 3B—Transient recovery voltage ratings fast time-to-peak (T 2 ) valuesfor definite purpose circuit breakers 123 kV and above ................................................................4


8/12

ANSI C37.06.1-2000Page vi


9/12

AMERICAN NATIONAL STANDARD C37.06.1-2000

Guide for High-Voltage Circuit Breakers Rated on a Symmetrical Current BasisDesignated “Definite Purpose for Fast Transient Recovery Voltage Rise Times”

1 Scope

This guide is issued as a supplement to C37.06 for high-voltage circuit breaker applications where thetransient recovery voltages (TRV) rise to the crest value much more rapidly than those specified in ANSIC37.06:

Table 1, Preferred ratings for indoor circuit breakers with voltage range factor K=1.0;

Table 2, Preferred ratings for outdoor circuit breakers 72.5 kV and below; or

Table 3, Preferred ratings for outdoor circuit breakers rated 123 kV and above.

2 Purpose

The purpose of this guide is to provide suggested values of fast transient recovery voltage rise time ratings.The proposed ratings were suggested by the IEEE Switchgear Committee, and apply ONLY to currents in the

ranges of 7 percent to 30 percent of Rated Short-Circuit Current. The TRVs for currents more than or equalto 60% of rated short-circuit current remain the same as for general purpose circuit breakers. Circuitbreakers not identified by the manufacturer as "definite purpose for fast transient recovery voltage rise times"shall be understood to be "general purpose circuit breakers," meeting the C37.06 standard TRVrequirements in table 1, 2, or 3 as appropriate.

3 References

ANSI/IEEE C37.04-1999, Rating Structure for AC High-Voltage Circuit Breakers Rated on a Symmetrical

Current Basis ANSI C37.06-2000, AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis - PreferredRatings and Related Required Capabilities


10/12

Table 1B – Transient recovery voltage parameters fast time-to-peak (T 2 ) valuesfor definite purpose indoor circuit breakers with voltage range factor K=1.0

Rated

Maximum

Rated

Voltage

RatedShort-Circuit

and Short-Time

Rated TransientRecovery Voltage

(1)

Definite Purpose TRV Parameters at

30% of Rated Short-Circuit Current



Line

VoltagekV, rms

(1)

RangeFactor K

(1)

CurrentkA, rms

(1)

PeakVoltage E 2

KV

Time toPeak T 2

µµ secCurrentkA, rms

PeakVoltage

kV

Time toPeakµµ sec

CurrentkA, rms

PeakVoltage

kV

Time toPeakµµ sec

No. Col. 1 Col. 2 Col. 3 Col. 4 Col. 5 Col. 6 Col. 7 Col. 8 Col. 9 Col. 10 Col. 11

12345

67

8910

1112131415

4.764.764.768.2515

1515

151527

2738383838

1.01.01.01.01.0

1.01.0

1.01.01.0

1.01.01.01.01.0

31.540504020

2531.5

405016

251625

31.540

8.98.98.9

15.528

2828

282851

5171717171

5050506075

7575

7575105

105125125125125

9.51215126

7.59.5

12154.8

7.54.87.59.512

10.110.110.117.531.6

31.631.6

31.631.658

5880808080

43.93.74.58.3

7.77

6.66.213

11141211

10.5

2.22.83.52.81.4

1.82.2

2.83.51.1

1.81.11.82.22.8

10.410.410.418

32.8

32.832.8

32.832.860

6083838383

7.26.568

15

13.512

111025

2027

21.520

17.5

Note(1) See Table 1 of C37.06 for circuit breaker ratings.

Copyright © 2003 IEEE. All rights reserved.


11/12

Table 2B–Transient recovery voltage ratings fast time-to-peak (T 2) values for definite purpose circuit breakers72.5 kV and below, including circuit breakers applied in gas insulated substations

Rated Rated

Rated

Short-Circuit

Rated TransientRecovery Voltage

(1)





Line

MaximumVoltage

kV, rms (1)

VoltageRange

Factor (1)

and Short-Time Current

kA, rms (1)

PeakVoltage E 2 kV, peak

Time toPeak T 2


PeakVoltagekV, peak

Time toPeakµµ sec

CurrentkA, rms

PeakVoltagekV, peak

Time to Peakµµ sec

No. Col 1 Col 2 Col 3 Col 4 Col 5 Col 6 Col 7 Col 8 Col 9 Col 10 Col 1112345

6789

10

1112131415

1617

15.515.515.515.525.8

25.838.038.038.038.0

38.048.348.348.372.5

72.572.5

1.01.01.01.01.0

1.01.01.01.01.0

1.01.01.01.01.0

1.01.0

12.5202540

12.5

25162025

31.5

4020

31.54020

31.540

29292929

48.5

48.571717171

71919191

136

136136

3636363652

5263636363

63808080

106

106106

3.86.07.5

12.03.8

7.54.86.07.59.5

12.06.09.5

12.06.0

9.512.0

3333333355

5581818181

81103103103154

154154

10887

13

1014131211

1115131219

1615

0.91.41.82.80.9

1.81.11.41.82.2

2.81.42.22.81.4

2.22.8

3434343457

5784848484

84106106106159

159159

1414141121

1825242220

1828232135

2825

Note

(1) See Table 2 of C37.06 for circuit breaker ratings.

Copyright © 2003 IEEE. All rights reserved.


12/12

Table 3B–Transient recovery voltage ratings fast time-to-peak (T 2) valuesfor definite purpose circuit breakers 123 kV and above

Rated RatedRated

Short-Circuit

Rated Transient

Recovery Voltage(1)

Definite Purpose TRV Parameters at30% of Rated Short-Circuit Current

Definite Purpose TRV Parameters at7% of Rated Short-Circuit Current

Line

MaximumVoltage

kV, rms (1)

VoltageRange

Factor (1)

and Short-Time Current

kA, rms (1)

PeakVoltage E 2 kV, peak

Time toPeak T 2


PeakVoltagekV, peak

Time toPeakµµ sec

CurrentkA, rms

PeakVoltagekV, peak

Time toPeakµµ sec

No. Col 1 Col 2 Col 3 Col 4 Col 5 Col 6 Col 7 Col 8 Col 9 Col 10 Col 1112345

6789

10

1112131415

161718

1920

2122

123123123145145

145145170170170

170170245245245

245362362

550550

800800

1.01.01.01.01.0

1.01.01.01.01.0

1.01.01.01.01.0

1.01.01.0

1.01.0

1.01.0

2040632040

638016

31.540

5063

31.54050

634063

4063

4063

216216216255255

255255299299299

299299431431431

431637637

968968

14081408

275260260330310

310310395360360

360360520520520

520775775

13251325

15301530

612196

12

19248

9.512

15199.51215

191219

1219

1219

245245245288288

288288338338338

338338487487487

487720720

10941094

15911591

28.323.521.430.925.8

23.522.635.229.127.8

26.425.434.833.331.6

30.340.737.1

49.044.7

60.755.3

1.42.84.41.42.8

4.45.61.12.22.8

3.54.42.22.83.5

4.42.84.4

2.84.4

2.84.4

253253253299299

299299350350350

350350505505505

505745745

11331133

16471647

48.736.531.053.440.0

34.031.263.447.043.2

35.736.756.251.647.4

43.863.255.7

76.163.9

94.179.9

Note(1) See Table 3 of C37.06 for circuit breaker ratings.

Copyright © 2003. All rights reserved.

guide for high-voltage circuit breakers

Documents