Overhead Line Low Current Grounding Fault Locator

Application:HZJK-815 is suitable for the overhead circuit of the low-current grounding system. After the single-phase grounding fault occurs and the circuit is out of operation, the device can be used for precise positioning of the groundinglocation.HZJK-815 is a set of portable equipment, which can be used for fault location of multiple lines.The whole equipment consists of transmitter, sensor and receiver.After the fault line is out of operation, the transmitter will apply ultra-low frequency and high voltage signals to the line to make the fault reappear. Along the line, the sensor will be hung up on the line to detect the signal with an insulating rod, and the data will be transmitted to the receiver on the ground through wireless communication, and the receiver will display the measurement results.In front ofthe fault point, the current continues to exist; Behindthe fault point, the current disappears.The fault location can be determined quickly by rough segmentation and then precise fixed point.Features:
1.It is suitable for the distribution network of small current grounding system to detect the single-phase metallic grounding, arc grounding and transition resistance grounding of overhead lines.
2.The transmitter is small in size and light in weight, and the sensor is designed to minimize the volume and weight, so as to facilitate the connection along the line and the handheld design of the receiver.
3.The transmitter can be powered by a municipal power supply, a generator or an automobile inverter, a sensor or a receiver powered by a dry battery.
4.The sensor usesthe high sensitivity sensor, the opening design, does not need to close, is convenient on the line to connect.
5.The receiver adopts large-screen LCD to display the circuit current waveform and current value.
6.Locate the fault line after the line is out of service, especially for the fault line of cable branch.
7.Ultra-low frequency signals avoid the influence of system capacitance and can locate high-resistance faults.
8.Applying high voltage signal makes the fault reappear, constant current signal is stable and easy to detect.
9.Transmitter safety features: high voltage start blocking function, short circuit output is allowed.
10.Sensor and receiver without signal transmission, safe and reliable.Specification:Location precision:0.2mOutput of transmitterOpen-circuit voltage:8kV(Equivalent to 10kV line phase voltage peak, can be set according to user requirements)Short-circuit current:15mA, output frequency: 1HzWireless communication distance≤30mPower supply of transmitterAC 220V mains supplyavailable generatorcarinverter(output frequency ≥180W)Power of transmitterMax power 900WPower supply of senor3pcs AA alkaline dry cellPower supply of receiver5pcs AA alkaline dry cellSizeTransmitter:350*210*300mmSenor:180*100*35mmReceiver:205*100*35mmWeightTransmitter: 12kgSenor:0.45kgReceiver:0.45kgWorking conditionTemperature:-10ºC~40ºCHumidity: 5~90%RHAltitude<4500m