Author: Noyafa–Noyafa Cable Tester
How to use the cable fault tester How to use the cable fault tester? The basic procedure for a cable fault detector is to measure the insulation resistance of the faulty cable with a megger or multimeter to determine the nature of the fault. There are many ways to diagnose faults. How to use the cable fault tester How to use the cable fault tester? The basic step in a cable fault detector is to measure the insulation resistance of the faulted cable with a megger or multimeter to determine the nature of the fault.
There are many ways to diagnose faults. There are three methods for testing the fault distance and detecting the buried path of cables near the fault point. In addition, the cable fault testing system consists of three methods: low-voltage pulse direct flash and charging flash, using different sampling methods, there are a total of eight test methods. During testing, it is necessary to disconnect all cables from the cable terminations.
The upper panel of the test system has two buttons, displacement and input amplitude, which are respectively used to adjust the signal amplitude and the upper and lower positions of the next sampling. The different test methods of the cable fault tester are suitable for different ranges. The low-voltage pulse method is mainly used to test the speed of wave propagation in cables.
Flash mode can be used to test high impedance leakage faults and most cable faults can be tested by the flashover method. In addition, there are direct flashover methods and direct flashover methods, which are mainly used to test high-impedance flashover faults. When using the direct flash method, the high-voltage current must be monitored to prevent the high-voltage current from burning the high-voltage transformer.
Respondent: Shenzhen Noyafa power cable fault tester, what is the use of the cable fault tester? The eight-pulse cable fault tester is a newly developed multi-pulse cable fault tester based on the advanced application technology of the existing secondary pulse cable fault tester. In addition to all the advantages of the secondary pulse cable fault tester, an important feature is that the pulse generator can continuously send a group of 8 cable fault test pulses and a group of 8 cable full-length test pulses while impacting high-voltage flashover (16 test pulses in total) with different delay times. The operator can select the most convenient one for analysis and judgment among the 8 groups of cable fault waveforms on the screen.
It's easy to get the distance to the point of failure! Complicated parameter settings and repetitive high-voltage flashover times are omitted. The tedious medium-voltage arc ignition device is omitted, the test method is simplified, and a simpler fault waveform judgment method is provided for users.
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