The cable fault tester can test various types of cable faults below 35KV voltage level, including high-resistance flashover, leakage faults, low-resistance, short-circuit faults, and open-circuit faults.
It adopts a box-type structure and a touch screen operation interface. All function buttons are intuitively displayed on the screen, and users can operate directly through the touch screen. It has waveform storage function, which can store a large number of field test waveforms for convenient recall, observation, and comparison on the same screen. The test interface is simple and clear, the function button definitions are simple and clear, and the measurement method is simple and fast.
1. Test methods: low-voltage pulse method, high-voltage flashover method.
2. Technical parameters
Test distance: For low-voltage pulse method, the test distance is 16Km; for high-voltage flashover method, the test distance is not less than 15Km.
System test accuracy: less than 20cm.
Pulse amplitude: not less than 250Vpp when the load impedance is 50Ω.
Pulse width: 0.2μs, 2μs, 4μs three types.
Sampling frequency: 48MHz, 24MHz, 12MHz, 6MHz.
System pinpoint error: When the host measurement results are combined with the digital synchronous pinpoint instrument measurement, the error is zero.
Reading resolution: 1m
Preset wave propagation speeds for 4 types of cable media: oil-impregnated paper: 160m/μs; cross-linked polyethylene: 172m/μs; polyvinyl chloride: 184m/μs; and settings for other non-power cable wave propagation speeds (optional media).
For other non-power cables, using the built-in speed measurement function, after inputting the known total length of the cable, the propagation speed of the wave in the cable can be measured.
3. Sampling method: current sampling method.
4. Working conditions: temperature -10 ~ +45°C, relative humidity 90%.
5. Volume: 430×300×190mm.
6. Weight: about 10kg.
