Description
GE CURRENT TRANSFORMER TYPE JKW-350 69KV FREE STAND - SUPERBUTE
Model JKW-350 SUPERBUTETM
Outdoor Current Transformer 69 kV, 60 Hz, 350 kV BIL
Application
Designed for outdoor service; suitable for operating meters, relays, and control devices. Rated Station Class with higher burden and extra creep distance. Available in a variety of ratio as outlined in the unit selection table below, with additional designs available upon request.
Features
Weight (Shipping/Unit): 683/593 lbsCreep Distance: 86.61” [2200 mm]
1-sec Thermal Limit: 75x normal
2 cycle Mechanical Limit: 170x rated (low ratio)
2 cycle Mechanical Limit: 85x rated (high ratio)
Insulation: HY-BUTE 60TM Butyl Rubber
Insulation Class: 350 kV BIL, Outdoor
Design Standard: IEEE C57.13
Tough & Resilient Butyl Rubber Shell
First introduced in 1955, HY-BUTE 60TM is GE’s unique butyl rubber formula. This material is hydrophobic, non-arc tracking, resistant to heat, chemicals, ozone and ultraviolet and is an elastic rubber which does not easily chip or crack. Use of HY-BUTE 60 enhances safety by increasing the likelihood of a passive, contained failure mode.
Accurate & Reliable Primary Design
Symmetrical distribution of winding turns within the CT head shell minimizes leakage flux for improved accuracy and thermal ratings
Built-in Surge Protection
A unique multi-gap primary on CT’s 600 amps and below is designed to clear dangerous overvoltage and fault conditions within 1⁄2 cycle
High Overcurrent Capability
The robust primary bar design on CT’s rated above 600 amps has virtually unlimited short-time mechanical current withstand
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