单选题电气线路中,不论是主回路还是二次控制回路所发生的故障可归结为()三种情况。A短路、过载和接地B短路、断路和接地C过载、断路和接地D短路、断路和欠压
单选题
电气线路中,不论是主回路还是二次控制回路所发生的故障可归结为()三种情况。
A
短路、过载和接地
B
短路、断路和接地
C
过载、断路和接地
D
短路、断路和欠压
参考解析
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