The common commerical frequency voltage test apparatus are divided into two categories, namely the traditional step up transformer system and series resonance system.
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。
2
In the palper, with resonance between the secondary coil of suspension transforMer and capacitance load the active ESS has been developed.
本文利用高压支承变压器高频载波下付边电感与负载电容的谐振特性，设计并研制了有源谐振的ESS。
3
A novel technology about harmonic restraining transformer based on resonance -circuit and magnetic air-gap shunt (RMsT) is presented.