实际工作中，通常认为电力系统某点发生三相短路故障时的短路电流最大，这一结论是以系统的零序等效阻抗大于正序阻抗(负序阻抗)为前提的。(    )  

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69463' and id < 4498545 and id<>'4498545' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69463' and id > 4498545 and id<>'4498545' order by id asc limit 5