A new countermeasure to current transformer (TA) saturation, namely, current polarity comparison method, for differential current protection of transmission line is proposed.
提出了一种适用于输电线路差动保护抗电流互感器(TA)饱和的新方法——电流极性比较法。
2
The end electrical field distribution under polarity reverse test voltage of valve winding in converter transformer is calculated. The results are analyzed.
计算了换流变压器阀侧绕组在极性反转试验电压下端部电场的分布情况，并对计算结果进行了分析。
3
And two draft resolutions were proposed trying to solve the problem of ct polarity checking in transformer zero-sequence differential protection.