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变压器的励磁涌流中，含有大量的直流分量及高次谐波分量，其中以（ ）次谐波所占的比例最大
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变压器的励磁涌流中，含有大量的直流分量及高次谐波分量，其中以（ ）次谐波所占的比例最大
A、二
B、三
C、四
D、五
时间：2021-09-02 13:55
关键词：
联大
河南理工大学
电气工程及其自动化
微机继电保护
答案解析
A
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