定向过流继电器 directional overcurrent relay
反向过流继电器 reverse overcurrent relay
插棒式过电流继电器 plunger overcurrent relay
串联过电流继电器 series over-current relay
过[电]流继电器 overcurrent relay
过电流继电器 current-overload relay; Box type power distribution substation; overcurrent relay; maximum relay; over current relay; OCR
活塞式过电流继电器 plunger type overcurrent relay
瞬时电磁式过电流继电器 instantaneous electromagnetic overcurrent relay
直流过流继电器 dc overcurrent relay
中性过电流继电器 neutral over-current relay
弱电流继电器电路 low current relay circuit
电力网继电器继电器 Relay; network relay
超高速继电器 ultra high speed relay
感应环式高速继电器 induction-ring type high-speed relay
高速继电器 high speed relay; fast relay
减速器继电器阀 retarder relay valve
电子管功率定向继电器 electronic valve type power directional relay
定向过流电驿 Alkane with straight chain
定向继电器 directional relay