题目内容
断路器加装并联电阻如下图,合闸时正确的操作顺序是( )。
2026-01-24
A.主触头和辅助触头同时合闸
B.先合主触头,再合辅助触头
C.先合辅助触头,再合主触头
D.辅助触头和主触头合闸没有先后之分本题
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