反向电流自动断开开关
automatic reverse current cutout
灭磁开关开断弧压
arc voltage for opening of field breaker
停放制动器开关座
parking brake switch mounting
1×N电光开关
1×N optical switch
1×N electro-optical switching
10kV高压开关柜
10kV high voltage switch cubicle
10kV HV switchgear
10kV和20kV开关柜
10 kV and 20 kV switchboards
10kV中置式开关成套设备
10kV complete equipment of intermediate switch
12区段开关表
twelve-section voltage vector select tables