中性点直接接地系统中，发生两相短路时，零序电流保护会动作。(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69532' and id < 4505290 and id<>'4505290' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69532' and id > 4505290 and id<>'4505290' order by id asc limit 5