Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Development of Electronic Type Relay for Low Voltage Circuit Breaker based on Digital Signal Processing

디지털 신호 처리 기반 저압 차단기용 전자식 계전기 개발

  • 박병철 (전자부품연구원 디지털컨버젼스연구센터) ;
  • 손종만 (LS산전 전력기기 제품연구소) ;
  • 송성근 (전자부품연구원 디지털컨버젼스연구센터) ;
  • 신중린 (건국대학교 전기공학과)
  • Received : 2013.02.08
  • Accepted : 2013.03.26
  • Published : 2013.05.31
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Abstract

A low voltage circuit breaker protects electrical equipments from over current and short faults of system by cutting the power supply. The breaker use a thermal magnetic type trip device from the past. In recent years, electronic type relays are applied due to useful functions and services. The purpose of this development is full digitalizing of relay functions of a low voltage breaker. It includes separation of current sensor from current transformer, digital signal processing, high speed relaying, and voltage measuring for power meter. The suggestions are tested and implemented by making prototype and testing its all relay functions.

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References

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