接地保护电流继电器联系方式_优质保护装置电流继电器供应厂家 SD-JLE22F/G型(F型为嵌入式安装,G型为导轨式安装)定时限电流继电器(以下简称电流继电器)是一种针对发电机、变压器、输变电线路的保护装置,作为电力系统交流回路过负荷或短路的启动元件,给出报警信号或切断故障回路。 SD-JLE22F/G type(F type is embedded installation, G type is rail-style installation) definite time lag current relay(hereinafter, current relay) is a kind of protection device for power generator, voltage transformer, power-transmission lines, as the starting element of the power system AC circuit overload or short circuit to give off alarms or cut off the fault circuit. 该产品采用微机控制芯片,具有测量范围宽、精度高、报警延时和动作延时分别设置与控制。配合 SD-LJD(LXK)系类零序电流互感器和动作继电器即组成完整的零序(接地)保护系统。适用于AC690V及以下电网系统。 The product is using microcomputer-controlled chip, having the features such as wide range of measurement, high precision, alarm time delay and operating time delay can be set and controlled separately. Used together with SD-LJD(LXK) series ZCT and executing relay to form a complete zero sequence(ground) protection system. It applies to power system up to AC690V. 桑迪电器___接地保护电流继电器联系方式_优质保护装置电流继电器供应厂家