弱电流继电器电路
low current relay circuit
插棒式过电流继电器
plunger overcurrent relay
串联过电流继电器
series over-current relay
电流检测电路
Current limit detection circuit
current-sensing-circuit
电流平衡式差动电流继电器
current balance type current differential relay
负序电流继电器
negative sequence current relay
过电流继电器
overcurrent relay
over current relay
Box type power distribution substation
current-overload relay
maximum relay
OCR
活塞式过电流继电器
plunger type overcurrent relay