Bushing Current Transformers for Draw-Out Circuit Breakers


Bushing Current Transformers for Draw-Out Circuit Breakers

Multi-ratio bushing current transformers (bushing CTs, or BCTs) designed for 24kV draw-out circuit breakers and to be used with measuring (or monitoring) instruments or protective relays. IEEE 0.3 B-0.9. Cast in Araldite® epoxy.

Epoxy-Cast Multi-Ratio Bushing CTs (BCTs)

About the Product

With a rated accuracy and burden of 0.3 B-0.9 (IEEE), these multi-ratio bushing current transformers (bushing CTs, or BCTs) are designed for draw-out circuit breakers and to be used with measuring (or monitoring) instruments or protective relays. Able to meet the requirements of 24 kV draw-out circuit breakers made by various manufacturers, these current transformers are cast in Araldite® epoxy resin and offer excellent moisture resistance, superior electrical performance, and high mechanical properties.

Specifications

  • Standards: IEEE, IEC
  • Indoor application
  • Epoxy cast
  • System Voltage: ≤ 25.5 kV
  • Frequency: 50/60 Hz
  • AC/BIL: 60/125 kV
  • Multi-ratio bushing CTs (BCTs)
  • Ith = Max 25 kA/1S
  • Compatibility with circuit breakers made by various manufacturers*
  • Other Standards and Specifications available upon request.

Bushing Current Transformers for Draw-Out Circuit Breakers - Designs

Selection Table

Bushing Current Transformers for Draw-Out Circuit Breakers - Selection Table

* Compatibility with circuit breakers made by manufacturers of various countries, including in Japan, France, and Sweden, etc.

** Current ratios according to IEEE C57.13

Available Models

HCB-2415, HCB-2415A, EBF-25M6, EBF-25M20, EBF-25MA6, EBF-25MA20


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