Catalog Data CA650055EN
Effective July 2022
Supersedes May 2020
COOPER POWER SERIES

General

Eaton’s Cooper PowerE series 600 A 35 kV Class T-OPE II deadbreak connector is used to terminate the high-voltage underground cable to transformers, switches, switchgear, and other apparatus. It is fully shielded and submersible and meets the requirements of IEEET Std 386E-2016— ”Separable Insulated Connector Systems.” The 200 A three-phase rated interface provides a means for obtaining a live test, visible ground, and visible break using a clampstick. It also provides a convenient location for an Eaton’s Cooper Power series metal oxide varistor elbow (M.O.V.E.) arrester, grounding elbow, or a 200 A tap line. Eaton’s Cooper Power series offers an optional capacitive test point similar to its 200 A elbow connectors. This allows use of test point faulted circuit indicators. T-OP II connectors are designed for use on solid dielectric cable (XLPE or EPR) with extruded semi-conducting shields. Installation on the jacketed cable may require additional sealing material. Adapters are available for terminating tape shield and drain wire UniShieldT jacketed cable.

900 A rating
The T-OP II connector system is rated for 900 A continuous when installed on a copper bushing.
200 kV BIL rating
The T-OP II connector is available with an optional 200 kV BIL rating, allowing you to match the BIL rating of the system and the equipment to which it will be connected.

Installation

The T-body is assembled onto a prepared cable with a threaded coppertop compression connector or shear bolt. The loadbreakreducing tap plug (LRTP) is threaded into the connector by using a 5/16 inch T-wrench. The short end of a special copper alloy stud, provided with the kit, is threaded into a de- energized 600 A bushing.
The assembled housing is then connected to the apparatus bushing using an O&T/torque tool. The T-OP II connector’s unique captured rotating nut feature provides ease of removal of the T-OP II system from the apparatus bushing. (See Table 6 for information on tools.) Refer to Installation Instruction Sheet MN650051EN for details.

Production tests

Tests are conducted in accordance with IEEE Std 386-2016:

• ac 60 Hz 1-minute withstand
• 50 kV/70 kV
• Minimum partial discharge extinction voltage
• 26 kV

Tests are conducted in accordance with Eaton requirements:

• Physical inspection
• Periodic dissection
• Periodic fluoroscopic analysis

Table 1. Voltage ratings and characteristics

ac 60 Hz 1-minute withstand
150 kV BIL Class T-OP II
200 kV BIL Class T-OP II| 50
70
dc 15-minute withstand| 103
BIL and full wave crest| 150/200
Minimum partial discharge extinction voltage| 26

Note: N Voltage ratings and characteristics meet or exceed IEEE Std 386-2016.

Table 2. Current ratings and characteristics

600 A Interface
Continuous| 600/900 A rms
24-hour overload| 1000 A rms
Short time| 40,000 A rms symmetrical for 0.20 s 27,000 A rms symmetrical for 4 s
200 A Interface 1
Continuous| 200 A rms
Switching 2| 10 operations at 200 A rms at 21.1 kV
Fault closure| 10,000 A rms symmetrical at 36.6 kV for 0.17 s
Short time| 10,000 A rms symmetrical for 0.17 s 3500 A rms symmetrical for 3 s

1 System design and protection must recognize the ratings of 200 A interface.
2 Switching rating limited to single-phase 21.1 kV.
Note:   Current ratings and characteristics meet or exceed IEEE Std 386-2016.

600 A 35 kV Class T-OP II deadbreak connector

Features and benefits

Figure 1. T-OP II cutaway design features
Note: Dimensions are in inches (mm) and are for reference only.

Optional features

Protective cap
200 A insulated protective cap fits over loadbreak-reducing tap plug for dead front shielding.
Capacitive test point
Capacitive test point on molded T-body, with snap-on cap, provides a place to mount Eaton’s Cooper Power series STVT, STLO, and STHI faulted circuit indicators.
Copper alloy stud
The Copper alloy stud with its extended length allows for threading into the connector prior to mating the bushing and terminator interfaces. Blunt start threads on the stud help eliminate crossthreading. Stud threads into an industry-standard 600 A bushing.

T-wrench
The T-wrench is used to install the loadbreak-reducing tap plug into the compression connector and T-body.

Torque tool
The torque tool is required to check the torque of a 35 kV Class T-OP II deadbreak connector or bushing adapter when it is installed on a 600 A bushing interface. It is precision calibrated and hotstick operable.

Combination operating and test/torque tool
The combination operating and test/torque tool is used with a hot stick to test for circuit de-energization and to install and remove a 35 kV Class LRTP equipped connector from an apparatus tap. The standard tool is equipped with a molded EPDM rubber cap and torque limiter to allow proper tool seating and gripping of the T-OP II connector. It also ensures that the connector has been properly torqued into the mating bushing.

5/16-inch hex shaft
5/16-inch hex shaft with 3/8-inch socket drive tool.

Ordering information

Each BOL-T connector kit contains:

• Molded rubber T-body
• Insulating plug
• Cap
• Compression or shear bolt connector
• Cable adapter
• Silicone lubricant
• Installation instruction sheet

A 35 kV T-OP II connector is available with or without a protective cap and with or without the test point. Use the following procedure to develop the correct part number for the desired T-OP II connector kit, based on cable size, conductor size, and desired options.

T-OP II connector kit—catalog numbering system
Build the 8- to 10-digit catalog number for a T-OP II kit by following the steps given below. The first 3 digits are “TP6”, so only digits 4 through 8 need to be selected. Digits 9 and 10 are optional.

Catalog number digits:
1 and 2 — “TP” = T-OP II connector system
3 — “6” = 600 A system
Step 1. Select digits 4 and 5 150 kV BIL or 200 kV BIL version
“35” = 35 kV class bushing interface, 150 kV BIL
“38” = 35 kV class bushing interface, 200 kV BIL
Step 2. Select digit 6 cable adapter range code
Determine the cable’s diameter over the electrical insulation as shown in Figure 3 (including tolerances).
Then identify a cable range from Table 3 that covers the minimum and maximum insulation diameters. Select the correct cable range code from Table 3.

Table 3. Cable diameter range

Step 3. Select digits 7 and 8 conductor code
Identify the conductor size and type in Table 4 (compression) or Table 5 (shear bolt) and select the conductor code from the appropriate column.

Table 4. Compression connector

AWG or kcmil| mm
2| AWG or kcmil| mm
2| Conductor code
---|---|---|---|---
No connector| | | 0

2| 35| 1| —| 11

1| —| Jan-00| 50| 12

Jan-00| 50| Feb-00| 70| 13
Feb-00| 70| Mar-00| —| 14
Mar-00| —| Apr-00| 95| 15
Apr-00| 95| 250| 120| 16
250| 120| 300| —| 17
300| —| 350| —| 18
350| —| 400| 185| 19
400| 185| 450| —| 20
450| —| 500| 240| 21
500| 240| 600| 300| 22
600| 300| 700| —| 23
650| —| 750| —| 24
750| —| 900| —| 25
900| —| 1000| 500| 26
1000| 500| —| —| 27
1250| 630| 1250| —| 28

Table 5. Shear bolt connector
Cable conductor size

Compact| Compressed| Concentric| mm²
standard **sizes| Conduct code| Catalog number
---|---|---|---|---|---
1/0| 1/0| 1/0| 50| S1| CDT630SB150T
2/0| 2/0| 2/0| 70| |
3/0| 3/0| 3/0| —| |
4/0| 4/0| 4/0| 95| |
250| 250| 250| 120| |
350| —| —| 150| |
—| 350| 350| 185| S3| CDT630SB300T
500| 500| 500| 240| |
600| 600| 600| 300| |
700| —| —| —| |
—| 700| 700| —| S4| CDT630SB400T
750| 750| 750| —| |
800| 800| —| 400| |
900| —| —| —| |
—| —| 800| —| S6| CDT1250SB630T
—| 900| 900| —| |
1000| 1000| 1000| 500| |
—| 1100| 1100| —| |
—| 1200| 1200| —| |
—| 1250| 1250| 630| |
—| 1300| 1300| —| S8| CDT1250SB800T**
—| 1400| 1400| —| |
—| 1500| 1500| 800| |

Figure 3. Typical construction of medium-voltage underground cable

Step 4. Select digit 9 and 10 (optional)
“TC” = T-OP II connector kit with a capacitive test point and protective cap
“C” = T-OP II connector kit with a protective cap (no capacitive test point)
Blank = T-OP II connector kit without capacitive test point or protective cap

Example
Select a 200 kV BIL T-OP II connector kit without a capacitive test point, with a protective cap for a 4/0 compressed cable with a nominal insulation diameter of 1.26 inches.
Step 1. Select digits 4 and 5
Kit requires 200 kV BIL bushing interface.
Select “TP638”
Step 2. Select digit 6
Nominal diameter over the insulation is 1.26 ± 0.030 inches minimum diameter = 1.26 – 0.030 = 1.23 inches maximum diameter = 1.26 + 0.030 = 1.29 inches From Table 3, identify the cable range 1.23 – 1.29 inches and select the “J” or “K” cable range code.
Step 3. Select digits 7 and 8
The conductor size is a 4/0 compressed. From Table 4, under the column “Concentric or compressed,” identify 4/0 and select the “16” conductor code.
Step 4. Select digit 9
The kit should have a protective cap. Select a “C” for digit 9.
Order catalog number: TP638J16C.

Accessories

To order replacement compression connectors, shear bolts, and cable adapters for a T-OP II connector system, see Catalog Data CA650006EN, “Deadbreak Accessories, Tools,
and Replacement Parts.”
Table 6. Replacement parts and tools

1 Use Table 4 and/or Table 5 for conductor code.
2 Use Table 3 to select cable range code.

Catalog Data CA650055EN
Effective July 2022
600 A 35 kV Class T-OP II
deadbreak connector
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Eaton’s Power Systems Division
2300 Badger Drive
Waukesha, WI 53188
United States
Eaton.com/cooperpowerseries
© 2022 Eaton
All Rights Reserved
Printed in USA
Publication No. CA650055EN / Z26565
July 2022
Eaton is a registered trademark.
All other trademarks are property of their respective owners.
EATON www.eaton.com

References

• Utility & grid solutions

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