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Get Price2018-5-17TECHNICAL PARAMETERS OF GIS Make: Xian XD Electric switchgear Co.,Ltd System nominal voltage: 400kV Maximum working voltage: 550kV Rated current: 4000A Rated frequency: 50Hz Rated short-circuit breaking current: 63kA for 1sec Rated peak withstand current: 170kA Rated control voltage: 220V DC SF6 Gas
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