电压互感器的二次侧绕组不允许短路，原因是（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69321' and id < 4487891 and id<>'4487891' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69321' and id > 4487891 and id<>'4487891' order by id asc limit 5