单选题:在选择隔离开关时,不必校验的项目是哪一项?( ) 题目分类:供配电专业知识 题目类型:单选题 查看权限:VIP 题目内容: 在选择隔离开关时,不必校验的项目是哪一项?( ) A.额定电压 B.额定电流 C.额定开断电流 D.热稳定 参考答案: 答案解析:
变压器的零序电抗与其构造和绕组连接方式有关。对于YN,d接线、三相四柱式双绕组变压器,其零序电抗为:( ) 变压器的零序电抗与其构造和绕组连接方式有关。对于YN,d接线、三相四柱式双绕组变压器,其零序电抗为:( )A.XD=∞ B.XD=X1+X1+X″o C.XD 分类:供配电专业知识 题型:单选题 查看答案
You would have passed the test if you _____ .( ) You would have passed the test if you _____ .( )A.Studied hard B.would study ha 分类:供配电专业知识 题型:单选题 查看答案
This article most probably appears in This article most probably appears inA.a story book B.a newspaper C.a literary m 分类:供配电专业知识 题型:单选题 查看答案
Which is the right way of listing salt content of 500 grams Which is the right way of listing salt content of 500 grams of bread?A.sodium: 3 分类:供配电专业知识 题型:单选题 查看答案