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Equivalent three-phase synthetic making test for medium voltage circuit breaker of distribution system using DC power

직류전원을 이용한 배전급 차단기의 등가 3상 합성투입시험법

  • Received : 2011.06.14
  • Accepted : 2011.07.14
  • Published : 2011.07.31

Abstract

The study about three-phase synthetic making test using DC power has been performed in order to increase the making test capacity on Vacuum Circuit Breaker. And, it made possible to solve the limitations that short-circuit testing facilities can not fulfill the testing requirements of VCB exceeding three-phase 36[kV] 31.5[kA]. By using DC power and high speed spark-gap switch, this method made the equivalence with the pre-arc that occurred during the making process under the fault condition of power system. As results, KERI(Korea Electrotechnology Research Institute) could have capacity to carry out type test for VCB under three-phase 52[kV] 40[kV], which satisfies the IEC Standard.

Keywords

References

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