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35 kV Class M.O.V.E. DirectConnect™ elbow arrester

Eaton's Cooper Power™ series M.O.V.E. DirectConnect™ elbow arrester combines metal (zinc) oxide varistor technology in a pre molded rubber elbow to provide overvoltage system protection in an insulated, fully shielded, sub mersible, deadfront device.

The arrester housing inter face conforms to IEEE Std 386™2006 standard – Separable Insulated Connector Systems. The arrester housing is molded of EPDM insulating rubber, which provides deadfront safety in a small, clampstick operable unit.

M.O.V.E. DirectConnect elbow arresters are used on underground systems in pad mounted transformer and entry cabinets, vaults, switching en clo sures and other installations to provide shielded deadfront arrester protection. They are designed for use with 600 A 35 kV Class deadbreak interfaces that conform to IEEE Std 386™2006 standard to limit over volt ages to ac cept able levels, protect equip ment and extend cable life.

General

Surge ArrestersCatalog Data CA235026EN

Effective February 2017 Supersedes November 2015

COOPER POWERSERIES

twhite

LAP

ConstructionThe rubber body is constructed of high quality precision molded peroxidecured EPDM insulation and semiconductive materials.

The copper alloy probe and probe retainer are connected to the MOV block stack via welded flexible tinplated copper leads. This ensures that the column cannot be damaged during installation and that a reliable current path to the MOV blocks is maintained. The disk column is composed of MOV disks bonded together with highconductivity, silverloaded epoxy to yield the most reliable electrical connection and eliminate air voids. The #4 AWG flexible copper ground lead, which reliably carries current to ground during voltage surges, is attached to the housing by a brass magneformed end cap. The brass end cap provides a tight, weatherproof seal.

OperationInstalling a M.O.V.E. DirectConnect elbow arrester at the end of a radial system or at both ends of an open point on a loop system provides excellent over volt age protection.

StandardsThe M.O.V.E. DirectConnect elbow arrester complies with the latest revisions of IEEE Std C62.11™ standard "IEEE Standard for Metal Oxide Surge Arresters for AC Power Circuits" and IEEE Std 386™2006 standard "Separable Insulated Connectors for Power Distribution Systems Above 600 Volts."

InstallationAll M.O.V.E. DirectConnect elbow arresters must be installed on or removed from deenergized systems. No special tools are required. An adapter is threaded into the 600 A apparatus bushing. The M.O.V.E. DirectConnect elbow arrester is then placed on the 600 A apparatus bushing using a clampstick. Refer to Service Information MN235002EN, 35 kV Class M.O.V.E. DirectConnect Elbow Arrester Installation Instructions for more details.

Production testsTests conducted in accordance with IEEE Std 386™2006 and IEEE Std C62.11™ standards:• Partial Discharge Extinction Voltage Level • AC 60 Hz 1 Minute Withstand • AC 60 Hz Watts Loss

Tests conducted in accordance with Eaton requirements:• Physical In spec tion• Periodic Dissection• Arrester Assembly:

• Voltage at 1 mA

• Periodic Fluoroscopic Analysis

Figure 1. Cutaway illustration shows 35 kV Class M.O.V.E. DirectConnect elbow arrester.

PULLING EYEStainless steel reinforced pulling eye allows easy installation and removal using a clampstick.

SEMICONDUCTING SHIELDHigh quality peroxidecured semiconducting EPDM shield meets re quire ments of IEEE Std 592™2007 standard.

GROUND LEAD#4 AWG flexible copper stranded woven ground lead (36 inches long) reliably carries current to ground during voltage surges.

DRAIN WIRE TABTab ensures that jacket remains at ground potential, meeting safety practice requirements. Tab is located away from pulling eye to minimize clutter.

MOV DISK COLUMNMOV disks are rigidly joined into a single assembly, with high con duc tiv ity silverloaded epoxy to ensure reliable connection between blocks.

IDENTIFICATION LABELIdentifies arrester type, rating and MCOV.

SPRING SHUNTFlexible shunt maintains a high conductivity path between the column and the lower cap to ensure continuous low impedance contact during arrester operation. It also assures optimum discharge char ac ter is tics.

EPDM INSULATIONHigh quality peroxidecured EPDM insulation is mixed and formulated inhouse for complete control of raw rubber characteristics.

WELDED LEADSFlexible welded tinplated copper leads between probe assembly and MOV column ensure that the column cannot be damaged during installation and that a reliable current path to the MOV blocks is maintained.

BRASS CAPBrass end cap is magneformed around moldedin sealing rings on rubber shank to provide a tight, weatherproof seal and ground lead connection.

LOADING SPRINGExtralong lower loading spring ensures high pressure contact.

SILVER EPOXY CONDUCTIVE BOND

THREADED ADAPTERThreads into the 600 A bushing and is used as the mating piece for the tinplated probe of the M.O.V.E. DirectConnect elbow arrester.

2

Catalog Data CA235026ENEffective February 2017

35 kV Class M.O.V.E. DirectConnect elbow arrester

www.eaton.com/cooperpowerseries

Production tests of mov blocksA complete production test program ensures a quality product. Each metal oxide varistor receives a series of electrical tests. Quality is demonstrated by a series of destructive tests performed on every batch of varistors. Listed are the tests performed on the varistors:• 100% Physical Inspection• 100% Discharge Voltage test• 100% V1mA/cm2

• 100% Leakage Current at 80% of V1mA/cm2 Voltage (Watts Loss)• Batch Highcurrent, Shortduration test• Batch Thermal Stability test• Batch Aging test

General application recommendationsThe rating of an arrester is the maximum power frequency linetoground voltage at which the arrester is designed to pass an operating dutycycle test. Table 2 provides a general application guide for the selection of the proper arrester rating for a given system voltage and system grounding configuration as outlined in the IEEE Std C62.22™ standard application guide.

Under fault conditions and other system anomalies, higher voltages can be experienced by the arrester. To ensure that the arrester ratings will not be exceeded, Eaton application engineers are available to make recommendations. The following information is normally required:

1. System maximum operating voltage.

2. System grounding conditions.

A. For fourwire circuits, grounding conditions depend upon whether the system is multigrounded, whether it has a neutral impedance and whether common primary and secondary neutrals are used.

B. For threewire circuits, grounding conditions depend upon whether the system is solidly grounded at the source, grounded through neutral impedance at the source transformers or ungrounded.

Consult your Eaton representative to have your individual system application needs studied.

Protective characteristicsThe protective characteristics of the M.O.V.E. DirectConnect elbow arrester is shown in Table 1.

* Equivalent front-of-wave voltage is the expected discharge voltage of the arrester when tested with a 5 kA current surge cresting in 0.5 µs.

Table 1. Electrical Ratings and Characteristics

Duty Cycle Voltage Rating (kV)

MCOV (kV)

Equivalent Front-of- Wave (kV crest)*

Maximum Discharge Voltage (kV crest)8/20 µs Current Wave

1.5 kA 3 kA 5 kA 10 kA 20 kA

27 22.0 87.2 71.4 76.9 82.4 90.1 103.0

30 24.4 97.1 79.5 85.7 91.8 100.0 115.0

33 27.0 108.0 87.8 95.1 102.0 112.0 127.0

36 29.0 116.0 95.3 103.0 110.0 120.0 137.0

Table 2. Commonly Applied Voltage Ratings of M.O.V.E. DirectConnect Elbow Arrester

System Voltage (kV rms)

Commonly Applied Arrester Duty-cycle (MCOV) Voltage Rating (kV rms) on Distribution Systems

NominalVoltage (kV)

Maximum Voltage Range B (kV)

4-WireMultigroundedNeutral Wye

3-Wire LowImpedance Grounded1

Delta and3-Wire HighImpedanceGrounded

24.94 Y/14.4 26.4 Y/15.24 18 (15.3) 27 (22.0) –

27.6 Y/15.93 29.255 Y/16.89 21 (17.0) 30 (24.4) –

34.5 Y/19.92 36.51 Y/21.1 27 (22.0) 36 (29.0) –

46 Y/26.6 48.3 Y/28 36 (29) – –

1. Line-to-ground fault duration not to exceed 30 minutes. For longer durations, contact the factory for proper rating.

3




Temporary overvoltage (TOV) capabilityThe Temporary Overvoltage (TOV) capability of the M.O.V.E. DirectConnect elbow arrester is shown in Figure 2.

Performance test characteristicsThe M.O.V.E. DirectConnect elbow arrester consistently withstands the following design tests as described by IEEE Std C62.11™ standard:• Duty Cycle:

22 current surges of 5 kA crest 8/20 µs waveshape.• High-Current, Short-Duration Discharge:

2 current surges of 40 kA crest 4/10 µs waveshape.• Low-Current, Long-Duration Dis charge:

20 current surges of 75 A crest 2000 µs rectangular wave duration.

Following each of these tests, the arresters remain thermally stable as verified by:• Continually decreasing power values during a thirty minute power

monitoring period.• No evidence of physical or electrical deterioration.•

.

Figure 2. Temporary overvoltage curve. No prior duty at 85 °C ambient.

1

1.2

1.4

1.6

1.8

2

2.2

0.01 0.1 1 10 100 1000 10000

Per U

nit M

COV

Time (Seconds)

Standard M.O.V.E. Arrester(Ref. Catalog Section 23565)

and POSIBREAK M.O.V.E. Arrester

IEEE Std. C62.22™XXXX standard Minimum

4




Ordering informationTo order a M.O.V.E. DirectConnect elbow arrester kit, de ter mine the arrester Maximum Continu ous Op er at ing Voltage (MCOV) rating for the intended ap pli ca tion using Table 2 and specify the ap propriate catalog number from Table 3. Contact your Eaton representative for applications not listed.

Additional informationRefer to the following reference literature for additional information:• CA800020EN, 600 A 35 kV Class Deadbreak Apparatus Bushing• MN235002EN, 35 kV Class M.O.V.E. DirectConnect Elbow

Arrester Installation Instructions• B23510052, DirectConnect Product Brief• CA235025EN, Metal Oxide Elbow (M.O.V.E.) Surge Arrester• CT235001EN, Deadfront Arresters Certified Test Report

Table 3. M.O.V.E. DirectConnect Elbow Arrester Selection Chart

IEEEStd 386™ standard Interface

DutyCycle (kV)

MCOVRating (kV)

Dimensions in./(mm)

Catalog NumberA B C

35 kV Class600 A

27 22.0 13.3 (338) 11.2 (284) 9.49 (241) DCEA635M27

30 24.4 13.3 (338) 11.2 (284) 9.49 (241) DCEA635M30

33 27.0 13.3 (338) 11.2 (284) 9.49 (241) DCEA635M33

36 29.0 13.3 (338) 11.2 (284) 9.49 (241) DCEA635M36

Figure 3. Dimensional information of M.O.V.E. DirectConnect Elbow Arrester (refer to Table 3).

ote:N Dimensions given are for reference only.

2.2" (55 mm)

VoltageClass S3

35 kV 4.85" (123 mm)

A

B

S3

C

5




Metal Oxide Varistor Elbow (M.O.V.E.) Surge Arrester

GeneralEaton combines metal (zinc) oxide varistor technology in a pre molded rubber elbow to provide overvoltage system protection in an insulated, fully shielded, sub mers ible, deadfront device with its Cooper Power™ series metal oxide varistor elbow (M.O.V.E.) surge arrester.

The arrester housing inter face conforms to IEEE Std 386™-2006 standard – Separable Insulated Connector Systems. The arrester housing is molded of EPDM insulating rubber, which provides deadfront safety in a small, clampstick operable unit.

M.O.V.E. arresters are used on underground systems in pad -mounted transformer and entry cabinets, vaults, switching en clo sures and other installations to provide shielded deadfront arrester protection. They are designed for use with 200 A loadbreak interfaces that conform to IEEE Std 386™-2006 standard to limit over volt ages to ac cept able levels, protect equip ment and extend cable life.

ConstructionThe rubber body is constructed of high quality precision molded peroxide-cured EPDM insulation and semi-conductive materials.

The copper alloy probe and probe retainer are connected to the MOV block stack via welded flexible tin-plated copper leads. This ensures that the column cannot be damaged during installation and that a reliable current path to the MOV blocks is maintained. The disk column is composed of MOV disks bonded together with high-conductivity, silver-loaded epoxy to yield the most reliable electrical connection and eliminate air voids. The #4 AWG flexible copper ground lead, which reliably carries current to ground during voltage surges, is attached to the housing by a brass magneformed end cap. The brass end cap provides a tight, weatherproof seal.


Effective May 2017 Supersedes November 2015

COOPER POWERSERIES

OperationInstalling a M.O.V.E arrester at the end of a radial system or at both ends of an open point on a loop system pro vides excellent over volt age protection. The addition of a second M.O.V.E. arrester at the mid-point on a rotatable feedthru insert provides optimum protection. 600 A feeder circuits can be protected with elbow arresters installed on Eaton's Cooper Power series T-OP™ II and BT-TAP™ Separable Connector Systems.

StandardsThe M.O.V.E. arrester complies with the latest revisions of IEEE Std C62.11™-2005 standard "IEEE Standard for Metal Oxide Surge Arresters for AC Power Circuits" and IEEE Std 386™-2006 standard "Separable Insulated Connectors for Power Distribution Systems Above 600 Volts."

Installation

Eaton's M.O.V.E. arresters can be installed or removed from energized bushings with a clampstick. No special tools are required. The arrester is placed on a 200 A inter face by using a clampstick. Refer to Service InformationS235-55-1, Standard M.O.V.E. and POSI-BREAK™ M.O.V.E. Elbow Arrester Installation Instructions for more details.

Production testsTests conducted in accordance with IEEE Std 386™-2006 and Std C62.11™-2005 standards:• Partial Discharge Extinction Voltage Level • AC 60 Hz 1 Minute Withstand • AC 60 Hz Watts Loss


• Voltage at 1 mA


Production tests of mov blocksA complete production test program ensures a quality product. Each metal oxide varistor receives a series of electrical tests. Quality is demonstrated by a series of destructive tests performed on every batch of varistors. Listed are the tests performed on the varistors:• 100% Physical Inspection• 100% Discharge Voltage test• 100% V1mA/cm

2

• 100% Leakage Current at 80% of V1mA/cm

2 Voltage (Watts Loss)• Batch High-current, Short-duration test• Batch Thermal Stability test• Batch Aging test

Figure 1. Cutaway illustration shows 25 kV Class metal oxide varistor elbow surge arrester.


SEMI-CONDUCTING SHIELDHigh quality peroxide-cured semi-conducting EPDM shield meets re quire ments of IEEE Std 592™-2007standard.


DRAIN WIRE TABTab ensures that jacket remains at ground potential, meeting safety practice requirements. Tab is located away from pulling eye to mini-mize clutter.

MOV DISK COLUMNMOV disks are rigidly joined into a single assembly, with high con-duc tiv ity silver-loaded epoxy to ensure reliable connection between blocks.



EPDM INSULATIONHigh quality peroxide-cured EPDM insulation is mixed and formulated in-house for complete control of raw rubber characteristics.

WELDED LEADSFlexible welded tin-plated copper leads between probe assembly and MOV column ensure that the column cannot be damaged during installation and that a reliable current path to the MOV blocks is maintained.

BRASS CAPBrass end cap is magneformed around molded-in sealing rings on rubber shank to provide a tight, weatherproof seal and ground lead connection.

LOADING SPRINGExtra-long lower loading spring ensures high pressure contact.


2

Catalog Data CA235025ENEffective May 2017



General application recommendationsThe rating of an arrester is the maximum power frequency line-to-ground voltage at which the arrester is designed to pass an operating duty-cycle test. Table 2 provides a general application guide for the selection of the proper arrester rating for a given system voltage and system grounding configuration as outlined in the IEEE Std C62.22™ standard application guide.

Under fault conditions and other system anomalies, higher voltages can be experienced by the arrester. To ensure that the arrester ratings will not be exceeded, Eaton's application engineers are available to make recommendations. The following information is normally required:



A. For four-wire circuits, grounding conditions depend upon whether the system is multi-grounded, whether it has a neutral impedance and whether common primary and secondary neutrals are used.

B. For three-wire circuits, grounding conditions depend upon whether the system is solidly grounded at the source, grounded through neutral impedance at the source transformers or ungrounded.


Protective characteristicsThe protective characteristics of the M.O.V.E. surge aresters are shown in Table 1.




MCOV (kV)

EquivalentFront-of-Wave (kV crest)*


1.5 kA 3 kA 5 kA 10 kA 20 kA

3 2.55 11.0 9.0 9.7 10.4 11.4 13.0

6 5.1 22.0 18.0 19.4 20.8 22.7 26.0

9 7.65 31.7 26.0 28.0 30.0 32.8 37.4

10 8.4 33.0 27.0 29.1 31.2 34.1 38.9

12 10.2 41.5 33.9 36.6 39.2 42.9 48.9

15 12.7 51.8 42.4 45.7 49.0 53.6 61.1

18 15.3 62.2 50.9 54.9 58.8 64.3 73.4

21 17.0 66.0 54.0 58.2 62.4 68.2 77.9

24 19.5 77.0 63.0 67.9 72.8 79.6 90.8

27 22.0 87.2 71.4 76.9 82.4 90.1 103.0

30 24.4 97.1 79.5 85.7 91.8 100.0 115.0

33 27.0 108.0 87.8 95.1 102.0 112.0 127.0

36 29.0 116.0 95.3 103.0 110.0 120.0 137.0

Table 2. Commonly Applied Voltage Ratings of M.O.V.E. Surge Arrester

System Voltage (kV rms)Commonly Applied Arrester Duty-cycle (MCOV) Voltage Rating (kV rms) on Distribution Systems

NominalVoltage

MaximumVoltage Range B

Four-WireMultigroundedNeutral Wye

Three-Wire LowImpedanceGrounded

Three-Wire HighImpedanceGrounded

2400 2540 – – 3 (2.55)

4160 Y/2400 4400 Y/2540 3 (2.55) 6 (5.1) 6 (5.1)

4160 4400 – – 6 (5.1)

4800 5080 – – 6 (5.1)

6900 7260 – – 9 (7.65)

8320 Y/4800 8800 Y/5080 6 (5.1) 9 (7.65) –

12 000 Y/6930 12 700 Y/7330 9 (7.65) 12 (10.2) –

12 470 Y/7200 13 200 Y/7620 9 (7.65) or 10 (8.4) 15 (12.7) –

13 200 Y/7620 13 970 Y/8070 10 (8.4) 15 (12.7) –

13 800 Y/7970 14 520 Y/8380 10 (8.4) and 12 (10.2) 15 (12.7) –

13 800 14 520 – – 18 (15.3)

20 780 Y/12 000 22 000 Y/12 700 15 (12.7) 21 (17.0) –

22 860 Y/13 200 24 200 Y/13 970 18 (15.3) 24 (19.5) –

23 000 24 340 – – 30 (24.4)

24 940 Y/14 400 26 400 Y/15 240 18 (15.3) 27 (22.0) –

27 600 Y/15 935 29 255 Y/16 890 21 (17.0) 30 (24.4) –

34 500 Y/19 920 36 510 Y/21 080 27 (22.0) 36 (29.0) –

46 000 Y/26 600 48 300 Y/28 000 36 (29.0) – –

3




Temporary overvoltage (TOV) capabilityThe temporary overvoltage (TOV) capability of the M.O.V.E. arrester is shown in Figure 2.

Performance test char ac ter is ticsThe M.O.V.E. surge arrester consistently withstands the following design tests as described by IEEE Std C62.11™ standard:• Duty Cycle:

22 current surges of 5 kA crest 8/20 µs waveshape.

• High-Current, Short-Duration Discharge:


• Low-Current, Long-Duration Dis charge:

20 current surges of 75 A crest 2000 µs rectangular wave duration.


monitoring period.• No evidence of physical or electrical deterioration.

Figure 2. Temporary overvoltage curve. No prior duty at 85 °C ambient.

1

1.2

1.4

1.6

1.8

2

2.2

0.01 0.1 1 10 100 1000 10000

Per U

nit M

COV

Time (Seconds)

Standard M.O.V.E. Arrester(Ref. Catalog Section 235-65)

and POSI-BREAK M.O.V.E. Arrester

IEEE Std. C62.22™ standard Minimum

4




Ordering informationTo order a M.O.V.E. surge arrester kit, de ter mine the arrester Maximum Continu ous Op er at ing Voltage (MCOV) rating for the intended ap pli ca tion using Table 2 and specify the ap pro pri ate catalog number from Table 3. Contact your Eaton sales engineer in your location for applications not listed.

Figure 3. Dimensional information of M.O.V.E. arrester (refer to Table 3).


A

B

2.2" (55 mm)

S3C

VoltageClass S3

15 kV 4.2" (107 mm)

25 kV 4.2" (107 mm)

35 kV 4.7" (120 mm)

Table 3. M.O.V.E. Surge Arrester Selection Chart

IEEE Std 386™ standardInterface

DutyCycle (kV)

MCOVRating (kV)

Dimensions in./(mm)

Catalog NumberA B C

15 kV Class

3 2.55 8.5 (216) 7.0 (178) 7.9 (201) 3238018C03M

6 5.1 8.5 (216) 7.0 (178) 7.9 (201) 3238018C06M

9 7.65 8.5 (216) 7.0 (178) 7.9 (201) 3238018C09M

10 8.4 8.5 (216) 7.0 (178) 7.9 (201) 3238018C10M

12 10.2 8.5 (216) 7.0 (178) 7.9 (201) 3238018C12M

15 12.7 8.5 (216) 7.0 (178) 7.9 (201) 3238018C15M

18 15.3 8.5 (216) 7.0 (178) 7.9 (201) 3238018C18M

25 kV Class

9 7.65 8.5 (216) 7.0 (178) 7.9 (201) 3238019C09M

10 8.4 8.5 (216) 7.0 (178) 7.9 (201) 3238019C10M

12 10.2 8.5 (216) 7.0 (178) 7.9 (201) 3238019C12M

15 12.7 8.5 (216) 7.0 (178) 7.9 (201) 3238019C15M

18 15.3 8.5 (216) 7.0 (178) 7.9 (201) 3238019C18M

21 17.0 8.5 (216) 7.0 (178) 7.9 (201) 3238019C21M

35 kV Class Interface 1A Large Interface

18 15.3 13.3 (338) 11.2 (284) 10.4 (264) 3238020C18M

21 17.0 13.3 (338) 11.2 (284) 10.4 (264) 3238020C21M

24 19.5 13.3 (338) 11.2 (284) 10.4 (264) 3238020C24M

27 22.0 13.3 (338) 11.2 (284) 10.4 (264) 3238020C27M

30 24.4 13.3 (338) 11.2 (284) 10.4 (264) 3238020C30M

33 27 13.3 (338) 11.2 (284) 10.4 (264) 3238020C33M

36 29 13.3 (338) 11.2 (284) 10.4 (264) 3238020C36M

5




GeneralEaton’s Cooper Power™ series POSI-BREAK™ M.O.V.E. surge arrester combines metal (zinc) oxide varistor technology in a pre molded rubber elbow to provide overvoltage system protection in an insulated, fully shielded, sub mers ible, deadfront device.

The arrester housing inter face conforms to IEEE Std 386™-2006 standard – Separable Insulated Connector Systems. The arrester housing is molded with high quality peroxide-cured EPDM rubber.

POSI-BREAK M.O.V.E. surge arresters are used on underground systems in pad -mounted transformer and entry cabinets, vaults, switching en closures and other installations to provide shielded deadfront arrester protection. They are designed for use with 200 A loadbreak interfaces that conform to IEEE Std 386™-2006 and IEEE Std C62.11™-2005 standards to limit overvolt ages to ac cept able levels, protect equip ment and extend cable life.

ConstructionThe rubber body is constructed of high quality precision molded peroxide-cured EPDM insulation and semi-conductive materials. The design of the arrester housing utilizes state of the art manufacturing process that creates an insulated sleeve around the top of the copper probe. It also provides a layer of insulating rubber over the conductive internal insert of the elbow. This leaves the stress relieving feature around the current interchange intact and furnishes improved dielectrics and increased strike distance. Together these features provide superior switching performance and reliability.

The copper alloy probe and probe retainer are connected to the MOV block stack via welded flexible tin-plated copper leads. This ensures that the column cannot be damaged during installation and that a reliable current path to the MOV blocks is maintained. The disk column is composed of MOV disks bonded together with high-conductivity, silver-loaded epoxy to yield the most reliable electrical connection and eliminate air voids. The #4 AWG flexible copper ground lead, which reliably carries current to ground during voltage surges, is attached to the housing by a brass magneformed end cap. The brass end cap provides a tight, weatherproof seal.

POSI-BREAK™ Metal Oxide Varistor Elbow (M.O.V.E.) Surge Arrester


Effective May 2017 Supersedes November 2015

COOPER POWERSERIES

OperationInstalling a POSI-BREAK M.O.V.E surge arrester at the end of a radial system or at both ends of an open point on a loop system pro vides excellent over volt age protection. The addition of a second POSI-BREAK M.O.V.E. surge arrester at the mid-point on a rotatable feedthru insert provides optimum protection. 600 A feeder circuits can be protected with elbow arresters installed on Eaton’s Cooper Power series T-OP™ II and BT-TAP™ Separable Connector Systems.

StandardsThe POSI-BREAK M.O.V.E. surge arrester complies with the latest revisions of IEEE Std C62.11™-2005 standard “IEEE Standard for Metal Oxide Surge Arresters for AC Power Circuits” and IEEE Std 386™-2006 standard “Separable Insulated Connectors for Power Distribution Systems Above 600 Volts.”

InstallationAll POSI-BREAK M.O.V.E. surge arresters can be installed or removed from energized bushings with a clampstick. No special tools are required. The arrester is placed on a 200 A inter face by using a clampstick. Refer to Service Information S235-55-1, 15, 25, and 35 kV Class Standard M.O.V.E. and POSI-BREAK M.O.V.E. Arrester Installation Instructions for more details.

Operating interface AC withstand testEaton’s POSI-BREAK M.O.V.E. surge arrester has successfully passed the “Operating Interface AC Withstand Test” per IEEE Std 386™-2006 standard. This test verifies the POSI-BREAK M.O.V.E. surge arrester will greatly reduce the partial vacuum related flashovers in the field.

Production testsTests conducted in accordance with IEEE Std 386™-2006 and IEEE Std C62.11™-2005 standards.• Corona Extinction Voltage Level • AC 60 Hz 1 Minute Withstand • AC 60 Hz Watts Loss on Assembly


• Voltage at 1 mA


Figure 1. Cutaway illustration shows 25 kV Class POSI-BREAK M.O.V.E. surge arrester.


SEMI-CONDUCTING SHIELDHigh quality peroxide-cured semi-conducting EPDM shield meets re quire ments of IEEE Std 592™-2007 standard.


DRAIN WIRE TABTab ensures that jacket remains at ground potential, meeting safety practice requirements. Tab is located away from pulling eye to minimize clutter.

MOV DISK COLUMNMOV disks are rigidly joined into a single assembly, with high con duc tiv ity silver-loaded epoxy to ensure reliable connection between blocks.



EPDM INSULATIONHigh quality peroxide-cured EPDM insulation is mixed and formulated in-house for complete control of raw rubber characteristics.

WELDED LEADSFlexible welded tin-plated copper leads between probe assembly and MOV column ensure that the column cannot be damaged during installation and that a reliable current path to the MOV blocks is maintained.

BRASS CAPBrass end cap is magneformed around molded-in sealing rings on rubber shank to provide a tight, weatherproof seal and ground lead connection.

LOADING SPRINGExtra-long lower loading spring ensures high pressure contact.


MOLDED ON INSULATED SLEEVE Provides improved dielectrics and increased strike distance.

PROBEField replaceable, tin-plated copper probe ensures reliable electrical connection. Specially formulated ablative arc follower provides dependable loadbreak switching characteristics.

ENCAPSULATED SEMI-CONDUCTIVE INSERTThe bushing end is covered with a layer of peroxide-cured EPDM insulation. This insulation provides improved dielectrics and increased strike distance.

2


POSI-BREAK Metal Oxide Varistor Elbow (M.O.V.E.) Surge Arrester


Production tests of MOV blocksA complete production test program ensures a quality product. Each metal oxide varistor receives a series of electrical tests. Quality is demonstrated by a series of destructive tests performed on every batch of varistors. Listed are the tests performed on the varistors:• 100% Physical Inspection• 100% Discharge Voltage test• 100% V1mA/cm

2

• 100% Leakage Current at 80% of V1mA/cm2 Voltage (Watts Loss)

• Batch High-current, Short-duration test• Batch Thermal Stability test• Batch Aging test

General application recommendationsThe rating of an arrester is the maximum power frequency line-to-ground voltage at which the arrester is designed to pass an operating duty-cycle test. Table 2 provides a general application guide for the selection of the proper arrester rating for a given system voltage and system grounding configuration as outlined in the IEEE Std C62.22™ standard application guide.

Under fault conditions and other system anomalies, higher voltages can be experienced by the arrester. To ensure that the arrester ratings will not be exceeded, Eaton application engineers are available to make recommendations. The following information is normally required:



A. For four-wire circuits, grounding conditions depend upon whether the system is multi-grounded, whether it has a neu-tral impedance and whether common primary and secondary neutrals are used.

B. For three-wire circuits, grounding conditions depend upon whether the system is solidly grounded at the source, grounded through neutral impedance at the source trans-formers or ungrounded.


Protective characteristicsThe protective characteristics of the POSI-BREAK M.O.V.E. surge arresters are shown in Table 1.



MCOV (kV)

EquivalentFront-of-Wave (kV crest)*


1.5 kA 3 kA 5 kA 10 kA 20 kA

3 2.55 11 .0 9.0 9.7 10.4 11.4 13.0

6 5.1 22.0 18.0 19.4 20.8 22.7 26.0

9 7.65 31.7 26.0 28.0 30.0 32.8 37.4

10 8.4 33.0 27.0 29.1 31.2 34.1 38.9

12 10.2 41.5 33.9 36.6 39.2 42.9 48.9

15 12.7 51.8 42.4 45.7 49.0 53.6 61.1

18 15.3 62.2 50.9 54.9 58.8 64.3 73.4

21 17.0 66.0 54.0 58.2 62.4 68.2 77.9


Table 2. Commonly Applied Voltage Ratings of POSI-BREAK M.O.V.E. Surge Arrester

System Voltage (kV rms)

Commonly Applied Arrester Duty-cycle (MCOV) Voltage Rating (kV rms) on Distribution Systems

Nominal Voltage

Maximum Voltage Range B

Four-Wire Multi-grounded Neutral Wye

Three-Wire Low Impedance Grounded

Three-Wire High Impedance Grounded

2400 2540 — — 3 (2.55)

4160 Y/2400 4400 Y/2540 3 (2.55) 6 (5.1) 6 (5.1)

4160 4400 — — 6 (5.1)

4800 5080 — — 6 (5.1)

6900 7260 — — 9 (7.65)

8320 Y/4800 8800 Y/5080 6 (5.1) 9 (7.65) —

12 000 Y/6930 12 700 Y/7330 9 (7.65) 12 (10.2) —

12 470 Y/7200 13 200 Y/7620 9 (7.65) or 10 (8.4)

15 (12.7) —

13 200 Y/7620 13 970 Y/8070 10 (8.4) 15 (12.7) —

13 800 Y/7970 14 520 Y/8380 10 (8.4) and 12 (10.2)

15 (12.7) —

13 800 14 520 — — 18 (15.3)

20 780 Y/12 000 22 000 Y/12 700 15 (12.7) 21 (17.0) —

22 860 Y/13 200 24 200 Y/13 970 18 (15.3) — —

23 000 24 340 — — —

24 940 Y/14 400 26 400 Y/15 240 18 (15.3) — —

27 600 Y/15 935 29 255 Y/16 890 21 (17.0) — —

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Temporary overvoltage (TOV) capabilityThe Temporary Overvoltage (TOV) capability of the POSI-BREAK M.O.V.E. surge arrester is shown in Figure 2.

Performance test characteristicsThe POSI-BREAK M.O.V.E. surge arrester consistently withstands the following design tests as described by IEEE Std C62.11™ standard:• Duty Cycle:


• High-Current, Short-Duration Discharge: 2 current surges of 40 kA crest 4/10 µs waveshape.

• Low-Current, Long-Duration Dis charge: 20 current surges of 75 A crest 2000 µs rectangular wave duration.


monitoring period.• No evidence of physical or electrical deterioration.

Figure 3. Dimensional information of POSI-BREAK M.O.V.E. surge arrester (refer to Table 4).


A

B

2.2” (55 mm)

C

Table 3. POSI-BREAK M.O.V.E. Surge Arrester Dimensions

DutyCycle (kV)

MCOVRating (kV)

Dimensions in./(mm)

A B C

3 2.55 8.5(216)

7.0(178)

7.9(201)

6 5.1 8.5(216)

7.0(178)

7.9(201)

9 7.65 8.5(216)

7.0(178)

7.9(201)

10 8.4 8.5(216)

7.0(178)

7.9(201)

12 10.2 8.5(216)

7.0(178)

7.9(201)

15 12.7 8.5(216)

7.0(178)

7.9(201)

18 15.3 8.5(216)

7.0(178)

7.9(201)

21 17.0 8.5(216)

7.0(178)

7.9(201)

Figure 2. Temporary overvoltage curve. No prior duty at 85° C ambient.

1

1.2

1.4

1.6

1.8

2

2.2

0.01 0.1 1 10 100 1000 10000

Per U

nit M

COV

Time (Seconds)

Standard M.O.V.E. Arrester(Ref. Catalog Section CA235025EN)and POSI-BREAK M.O.V.E. Arrester

IEEE Std. C62.22™ standard Minimum

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Ordering informationTo order a POSI-BREAK M.O.V.E. surge arrester, de ter mine the arrester maximum con tinu ous op erat ing voltage (MCOV) rating for the intended ap pli ca tion using Table 2 and determine the appropriate catalog number based on the catalog numbering system outlined above. Contact your Eaton representative for applications not listed.

Additional informationRefer to the following reference literature for additional information:• CA650078EN, 200 A 15 kV Class Loadbreak Rotatable Feedthru

Insert Catalog Section• CA650077EN, 200 A 25 kV Class Rotatable Feedthru Insert

Catalog Section• CA650017EN, 600 A 15 kV Class T-OP II Deadbreak Connector

Catalog Section• CA650059EN, 600 A 25 kV Class T-OP II Deadbreak Connector

Catalog Section• CP9314, Certified Test Report Summary

Table 4. UltraQUIK Catalog Numbering System

UltraQUIK selection and ordering guide

1

P2

L3

E4

A5

26

27

58

N9

110

8Catalog Number Digits:

1 = “P”, POSI-BREAK2 = “L”, Loadbreak3 & 4 = “EA”, Elbow Arrester5, 6 & 7 = Elbow Class: “225”, 200 A, 25 kV8 = “N”, Gapless9 & 10 = Arrester Duty Cycle Rating: 03, 06, 09, 10, 12, 15, 18, or 21

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