电流平衡式差动电流继电器
current balance type current differential relay
电流差动继电器
current differential relay
相位平衡电流继电器
phase balance current relay
整流式差动继电器
rectifier type differential relay
电动式继电器
electrodynamic type relay
electrodynamic relay
电流差动继电系统
current differential relaying system
电流差动继电制
current differential relaying system
光电式继电器电表
photoelectric relay meter
平衡电流继电保护系统
balanced current relaying
平流式流动电位
Tangential streaming potential
弱电流继电器电路
low current relay circuit