zero sequence current transformer
accelerated zero sequence over-current
acquisition of zero current
de-excitation by passive switching in zero current
instantaneous zero sequence power
zero current transition
zero current turning-on
zero sequence protection
zero voltage zero current switching
zero-current-switching
零电流开关ZCS
零电流开关(ZCS)
零电流开关
零电流关断
zero-current-switching(ZCS)