试题与答案

额定电压U为100V，同期检查继电器，其整定角度δ为40°时，用单相电源试验，其动作

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题型：问答题 计算题

题目：

额定电压U为100V，同期检查继电器，其整定角度δ为40°时，用单相电源试验，其动作电压怎样计算？

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A

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