某母线装设有完全差动保护,在外部故障时,各健全线路的电流方向是背离母线的,故障线路的电流方向是指向母线的,其大小等于各健全线路电流之和。( )(0.6)
发布时间:2025-11-26
A.正确
B.错误
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69414' and id < 4494360 and id<>'4494360' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69414' and id > 4494360 and id<>'4494360' order by id asc limit 5
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