当采用交流操作的保护装置时,短路保护可( )取得操作电源.A.由电压互感器;B.増加电容储能电源;C.由被保护元件的电流互感器;D.变电所所用...

作者: rantiku 人气: - 评论: 0
问题 当采用交流操作的保护装置时,短路保护可( )取得操作电源.
选项 A.由电压互感器; B.増加电容储能电源; C.由被保护元件的电流互感器; D.变电所所用变压器。
答案 C
解析

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