在中性点不接地系统中，如果忽略电容电流，发生单相接地时，系统一定不会有零序电流。 ()

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69548' and id < 4507097 and id<>'4507097' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69548' and id > 4507097 and id<>'4507097' order by id asc limit 5