When the voltage of the switch of the closing coil is lower than the rating of 80%~85%, may ( ).
A、Slow switch closing speed
B、The fault current is relatively large, which is not conducive to the extinction of arc
C、Cause switch refuse to move
D、 Cause switch misoperation

When the voltage of the switch of the clo… - 答案解析 | 题目搜索引擎