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 Study on the Circuit Breaker Transient Recovery Voltages on Large Commercial Customer using EMTP-RV Program

EMTP-RV를 이용한 대용량 전기설비의 차단기 TRV에 관한 연구

  • 조계술 (홍익대학교 대학원 전기공학과) ;
  • 최홍규 (홍익대학교 과학기술대학 전자.전기공학과)
  • Received : 2011.07.25
  • Accepted : 2011.08.31
  • Published : 2011.10.31
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Abstract

In electric power system, the circuit breaker is not operated when the higher voltage then the rated TRV(transient Recovery Voltage) appeared in the circuit breaking, The TRV of a circuit breaker means the characteristics of reignition by the arc between two poles. and is decided by the value of connecting Impedance. In this paper we of carried out many kinds of experiments varying the types of bus, the types of installation, the length of installation between 22.9 [kV] level circuit breaker and MTR in general 154/22.9[kV] system, We also simulated the characteristics of TRV using EMTP-RV program. The suitability of TRV in assessed by Uc, RRRV(Rate of Rise of Recovery Voltage) which are defined by the international guide, IEC62271-100. The values of RRRV gained from the cable-made bus are 590[%] lesser than those from the NSPB-made bus respectively. So the triangled type is more rational in the aspect of TRV.

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References

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