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电流表量程与电流互感器必须一致么

2025-04-03 23:31:23

推荐回答（1个）

回答1：

电流互感器30/5的二次额定电流为5A，电流表匹配值应为30/5，即电流表满度实际为5A，表针指示就为30A。若用量程是20 A的电流表，一次(电源)线电流为30A时，表指针指示为5A。所以，电流表必须与电流互感器匹配应用。

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