A.控制回路 B.分閘線圈 C.分閘脫扣或合閘摯子部分 D.合閘線圈
A.50 B.100 C.150 D.200
A.O-0.3s-CO-130s-CO B.O-0.5s-CO-150s-CO C.O-0.5s-CO-180s-CO D.O-180s-CO-180s-CO