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判断题) 直流接触器线圈起动功率和吸持功率相等
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判断题) 直流接触器线圈起动功率和吸持功率相等
A、正确
B、错误
时间:2021-09-01 22:46
关键词:
青书学堂
河北建筑工程学院
电气控制与PLC
答案解析
A
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直流接触器的线圈一定是
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在外加电压一样的情况下,不能用交流励磁的接触器线圈替换直流励磁的接触器,否则将烧毁线圈,其原因是()
判断题) 直流接触器线圈起动功率和吸持功率相等
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