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《Relay》 2007-05
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A study of the two-point grounding fault protection scheme for excitation winding of generator

LUO Zhen1,LI Shu-xing2(1.Handan Power Supply Company,Handan 056035,China;2.Power Plant,Pingmei Group Corporation,Pingdingshan 467000,China)  
Aiming at the limitation of two-point grounding protection and based on the Ping Pong type grounding protection,this paper puts forward a one-point-to-ground protection scheme by integrating the self checking method of switches.A new and comprehensive two-point-ground protection scheme is proposed.This protection scheme is simple,stable,and practical.
【CateGory Index】: TM862;TM307
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