过电流保护在被保护线路输送最大负荷时，动作行为是（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69376' and id < 4491190 and id<>'4491190' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69376' and id > 4491190 and id<>'4491190' order by id asc limit 5