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Method of measuring polarity after installing sleeve-type current transformer
Author(s): 
Pages: 128-129,132
Year: Issue:  23
Journal: Relay

Keyword:  变压器套管CT极性测量方法抵消电感;
Abstract: 在变电站的继电保护试验中,送电前需要验证变压器套管CT极性的正确性,常规的"直流感应法"无法测量套管式电流互感器的极性,其它的测量方法又不利于推广应用,在现场实际施工中探索出一种新的测量方法--"抵消电感作用测量法".采用"抵消电感作用测量法"验证安装后的变压器套管CT极性的正确性,在现场使用简单易行,操作灵活,测量结果准确无误.
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