Built-in live filter unit, suitable for direct connection of high voltage 660V fault cable

The output current is pulsed, and the detection is simple and easy

Strong filtering to inhibit interference signals

High locating fault resistance 150 kOhm

There is no need to power off the cable under test during fault location

The positioning process has no effect on the signal transmission of the signal cable under test

important control system, signal system and distribution system, such as high-speed rail, subway, power plant, ship, hospital, bank data center and other power cables must be designed for suspension power supply system (such as three-phase three-wire system, TT low voltage system). In order to ensure the safety of power supply and prevent power failure, the cable of suspension ground system is usually monitored by grounding indicating system.

When a ground fault occurs, it will not cause the suspension of power supply. only when two ground faults occur at the same time, the suspended ground power supply system will have a great risk of power outage. For this reason, after the ground fault occurs in the suspension power supply system, it is necessary to locate the fault point as soon as possible and eliminate the hidden trouble completely. This kind of cable fault can be fixed quickly and accurately by GL 660-1 system. The GL 660 connects directly to the high 660 V fault line and emits a low frequency signal, allowing the use of a specific receiver to track the fault location along the fault line.