In electric power plants and substations, a detection of DC system ground fault was usually completed in hand manner, which is very much trouble and danger.
在发电厂和变电所内，直流系统接地故障的检测，过去一直采用手动方式来完成。
They provide system security and immediate reliable low level ground fault detection on three-phase AC resistance grounded or grounded electrical distribution systems.
此类继电器能够增加系统安全性，并对三相交流接地电阻或接地配电系统进行可靠的低级接地故障检测。
Maximum system security and immediate ground fault detection helps avoids nuisance tripping due to charging currents.
最高的系统安全性和接地故障检测有助于避免由充电电流造成的跳闸。
Maximum system security and immediate ground fault detection helps avoids nuisance tripping due to charging currents.
最高的系统安全性和接地故障检测有助于避免由充电电流造成的跳闸。
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