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Medium voltage cable accessories

Deadbreak connectors

Eaton’s Cooper Power series deadbreak connector systems meet the need for a deadfront underground installation in main and lateral feeders. They provide a completely shielded, deadfront, fully submersible cable connection for medium-voltage apparatus, including transformers, switchgear and large motors. 

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200 kV BIL deadbreak system
Manage transient events
Hotstick-operable
Ease of use
Advanced connection design
Consistent installation

Core features

  • Can be used to make splices, junctions, taps and deadends for main underground, distribution feeders
  • Meet the electrical, mechanical and dimensional requirements of IEEE Std 386 or equivalent standard
  • Designed to be fully interchangeable
  • 900 amp rating available for use with copper bushing or junction
  • Designed for use on XLPE, EPR or other solid dielectric insulated underground electrical cables
  • Moulded using high-quality, peroxide-cured EPDM insulation for reliable field performance

Protection against high-voltage events

Eaton's Cooper Power series deadbreak connectors offer the industry's first complete 200 kV BIL deadbreak system that can reduce the damage done by high-voltage transient events.

Designed for hotstick operation

Eaton's Cooper Power series T-OP II deadbreak connector systems have a 200 A loadbreak tap. They are single-person hotstick-operable, making them ideal for terminations that may require moving or sectionalising to achieve a visible open or visible ground.

Easier installation with stepless shear bolt connector

The stepless shear bolt connector, used in 600 A deadbreak terminations, ensures more installation consistency than conventional shear bolt connectors and eliminates the need for compression tools and dies.
Specifications

Ratings

600 A deadbreak connector ratings in accordance with IEEE Std. 386 standard
Voltage ratings
 15 kV
 25 kV
 35 kV
Standard voltage class
 25
 25
 35
Maximum rating phase-to-ground
 15.2
 15.2
 21.1
AC 60 Hz 1-minute withstand
 40
 40
 50
DC 15-minute withstand
 78
 78
 103
BIL and full wave crest
 125
 125
 150
Minimum corona voltage level
 19
 19
 26
Current ratings
 15 k
 25 kV
 35 kV
600 A interface**
Continuous
 600 A rms
 600 A rms
 600 A rms
24-hour overload
 1,000 A rms
 1,000 A rms
 1,000 A rms
Short time
 25,000 A rms sym. for 0.17 s
 25,000 A rms sym. for 0.17 s
 25,000 A rms sym. for 0.17 s
10,000 A rms sym. for 3.0 s
 10,000 A rms sym. for 3.0 s
 10,000 A rms sym. for 3.0 s
200 A Interface On Loadbreak Reducing Tap Plug (LRTP)* 
Continuous
 200 A rms
 200 A rms
 200 A rms
Switching 
 10 make/break operations at 200 A rms at 14.4 kV
 10 make/break operations at 200 A rms at 26.3 kV
 10 make/break operations at 200 A rms at 36.6 kV
Fault closure
 10,000 A rms sym. at 14.4 kV for 0.17s after 10 switching operations
 10,000 A rms sym. at 26.3 kV for 0.17s after 10 switching operations
 10,000 A rms sym. at 36.6 kV for 0.17s after 10 switching operations
Short time 
 10,000 A rms sym. for 0.17 s
 10,000 A rms sym. for 0.17 s
 10,000 A rms sym. for 0.17 s
3,500 A rms sym. for 3.0s
 3,500 A rms sym. for 3.0s
 3,500 A rms sym. for 3.0s
*System design and protection must recognize the ratings of 200 A interface
**Optional 900 A rating is available
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