polarity test

基本解释

Ratio and polarity test of CT is the important work in the inspection of transformer protection.
CT变比和极性的测定是变压器保护检验工作的重要组成部分。
The polarity test of vibroseis before its construction is directly relative to the polarity of acquired data.
可控震源施工前的震源极性验证工作直接关系到采集资料的极性。
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。