常见的工频耐压设备大致可分为两类：传统的升压变压器系统和串联谐振系统。
The common commerical frequency voltage test apparatus are divided into two categories, namely the traditional step up transformer system and series resonance system.
介绍了变压器工频耐压试验的串联调谐装置，对其性能和特性进行了分析，给出了结论。
The series tuning device fOr the power-frequency withstand voltage test is introduced. The characteristics of the device are analyzed. The conclusion is given.
互感器一次绕组的重复工频耐压试验应在规定试验电压值的80%下进行。
The testing voltage of the secondary winding of transformer has to be 80% stipulated testing voltage while repeated power frequency voltage with-stand test needed.
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