Bushing Current Transformers for Draw-Out Circuit Breakers
HCB-2415(A), EBF-25M Series
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 or 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.
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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CIC Company Profile
Learn about our company: history, strengths, products, global locations, and our Advanced Electricity Lab.
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【Product Brochure】Bushing Current Transformers for Draw-Out Circuit Breakers
Easy-to-print document, containing product description, specifications, and a selection table.
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【Product Dimensions】Bushing Current Transformers for Draw-Out Circuit Breakers
Download PDF for basic drawing(s) and dimensions of this product. For more detailed information, please contact CIC.
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CT & PT Selection Guide: How to Choose a Current Transformer or Potential Transformer
How to select, based on application and power system attributes, the primary and secondary currents, burden, accuracy, rated frequency, type (indoor vs. outdoor), insulation material, etc.
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Overvoltage Protector for Current-Transformer Protection
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When a power system is in operation, it is imperative that the secondary of the current transformer(s) should not have an open circuit. When an open circuit occurs, an extremely high transient voltage will be induced, which can in turn damage the current transformers and the instruments at the secondary, or even posing a threat to personal safety. This CT secondary overvoltage protector offers protection from such accidental damage caused by secondary transient voltage.
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