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설비신뢰성 향상을 위한 무수은형 카드릴레이 개발 및 운영
李世溢(S.I Lee),安俊基(J.K Ahn),蔣在元(J.W Chang),金正權(J.K Kim),梁宰源(J.W Yang) 대한전기학회 2007 전기학회논문지 Vol.56 No.4
The electro-mechanical mercury relay is used as an auxiliary relay of power facility because it is superior to operating time and no-bounce. So the KEPCO has used the mercury relay for operating HVDC(High Voltage Direct Current) system. But it has many problems with facility operation by occurrence of mercury evaporation, held contact point and malfunction according to long term use, furthermore it is forbidden to produce for fear of environmental pollution in 2002. This paper presents the no-mercury relay development, comparison test and application.