Research of UHV Station Neutral-point Protection of PT's Secondary Winding

In this paper, the grounding mode of PT secondary side neutral point in UHV substation and the selection design of products are described, putting forward the relevant solutions to the problem of PT secondary side neutral point grounding in 1000kV UHV substation. Giving for Some suggestions about the design and product selection to the UHV 1000kV substation PT secondary side neutral point over voltage protection.