零序差动
zero sequence differential protection
zero-sequence differential
zero-sequence differential protection
零序差动保护
zero-sequence DIFP
zero -sequence differential protection
零序差流
neutral-differential current
zero-sequence differential current
零序差流保护
zero sequence difference current protection
零序对地导纳
zero sequence phase-to-ground admittance
零序态电流
zero sequence transient currents
零学杂费
the era of free tuition fee
零压差点
zero pressure difference point