若对称三相电压源星形联结,每相电压有效值均为220V,但ＢＹ相的Ｂ与Ｙ接反。若三条端线的注字仍为Ａ、Ｂ、Ｃ,则其线电压ＵAB为_____V,ＵBC为_____V,ＵCA为_____V。 -题库考试答案搜索网

若对称三相电压源星形联结,每相电压有效值均为220V,但ＢＹ相的Ｂ与Ｙ接反。
若三条端线的注字仍为Ａ、Ｂ、Ｃ,则其线电压ＵAB为___V,ＵBC为_V,ＵCA为___V。

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2022-04-02 12:54

A、<span style="font-size:14px;font-family:'Times New Roman','serif'"> 220 </span>
B、<span style="font-size:14px;font-family:'Times New Roman','serif'">380 </span>
C、<span style="font-size:14px;font-family:'Times New Roman','serif'">127 </span>
D、<span style="font-size:14px;font-family:'Times New Roman','serif'"> 0</span>

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正确答案

AB

试题解析

标签：黑龙江省教育学院电气工程及自动化（函授）专升本电路分析基础平时作业1

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