母线保护在外部故障时,其差动回路电流等于各连接元件的电流之和(不考虑电流互感器的误差);在内部故障时,其差动回路的电流等于零。( )
发布时间:2026-01-24
A.正确
B.错误
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69488' and id < 4501152 and id<>'4501152' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69488' and id > 4501152 and id<>'4501152' order by id asc limit 5
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