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The Transactions P of the Korean Institute of Electrical Engineers

Korean Journal of Air-Conditioning and Refrigeration Engineering

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Title	Study on the Ground Fault Protection in 6.6KV Ungrounded Power System SGR Malfunction or Non-Tripping
Authors	김병태(Kim, Byung-Tae) ; 이달우(Lee, Dal-Woo) ; 전명수(Jeon, Myung-Soo)
Page	pp.296-301
ISSN	1229-800X
Keywords	OVGR ; SGR ; Ground Fault Test ; Ungrounded System ; Zero Sequence Voltage
Abstract	This paper presents a study on the ground fault protection in 6.6KV ungrounded power system relay(SGR) malfunction or non-tripping. Ground test had made on 6.6KV HV(high voltage) system, Some of domestic and oversea's SGR products are different from their own specific characteristics. This study on the ground protection relay 6.6KV power supply system is focused to protect human.

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