1MW及以上的发电机,宜装设复合电压启动的过电流保护,该保护的负序电压元件的动作电压可取()倍的额定电压。A.0.01~0.07;B.0.02~0.0...

作者: rantiku 人气: - 评论: 0
问题 1MW及以上的发电机,宜装设复合电压启动的过电流保护,该保护的负序电压元件的动作电压可取()倍的额定电压。
选项 A.0.01~0.07; B.0.02~0.08; C.0.05~0.011; D.0.06~0.12。
答案 D
解析

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