Analysis and Treatment of Complex DC Grounding in 220 kV Substation
This paper elaborates on the process of dealing with a complex DC grounding fault in a 220 kV substation,introducing the general flow of DC grounding fault treatment.Based on the cause analysis,spe-cific suggestions are put forward regarding pulling mode,secondary circuit acceptance and comprehensive transformation of automation.The aim is to reduce the time taken to address such grounding faults and bet-ter ensure the safe and stable operation of the power grid.
DC groundingDC connectionsecondary loopcable grounding
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