zero voltage zero current switching
accelerated zero sequence over-current
improved zero voltage method
instantaneous zero sequence power
zero sequence current transformer
zero sequence protection
zero voltage soft switching
zero voltage switching
零
零电压开关
零电压切换
零电压软开关
ZVS条件
软开通
zero voltage transition
zero-voltage-switching(ZVS)
negative sequence voltage
low voltage and high voltage injury
touch voltage and step voltage