一起220 kV电流互感器测量变比异常的原因及分析
Reasons and analysis of a 220 kV current Transformer measurement anomaly
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摘要: 对现场一起电流互感器变比异常进行排查与分析，讲述了电流互感器变比测试的两种方法，分析了该电流互感器带负荷时运行正常，而电压法测量其变比时误差大的原因。Abstract: this paper investigates and analyzes the anomaly of the variation ratio of a current transformer on the spot, describes two methods of the variation ratio test of the current Transformer, analyzes the normal operation of the current Transformer when it is loaded, and analyzes the reasons why the voltage method measures its variance.
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