NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–CCTV Tester
Pipeline Cable Fault Tester How to Test for Power Fault The Pipeline Cable Fault Tester is a comprehensive set of equipment. It is used to test open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage fault of power cable, as well as coaxial communication cable and pipeline cable fault tester How to test power fault The pipeline cable fault tester is a set Comprehensive equipment. It is used to test open circuit, short circuit, grounding, low resistance, high resistance flashover and high resistance leakage faults of power cables, as well as open circuit and short circuit faults of coaxial communication cables and local telephone cables.
The pipeline cable fault tester can also test the cable path, burial depth, and radio wave speed, check the cable length, etc., and can establish a cable file for daily maintenance and management. The pipeline cable fault tester adopts low-voltage pulse method and high-voltage flashover method for detection, which can test various faults of cables, and directly test the flashover and high-resistance faults of power cables without burning through. If equipped with a sound point meter, the location of the fault point can be accurately determined.
The pipeline cable fault tester is composed of a test system, a path signal generator, a path signal receiver and a positioning instrument. It can complete the two tasks of cable fault test and cable data management. The industrial computer performs measurement control, data processing and cable data management. The pipeline cable fault tester system cooperates with the industrial computer to measure the distance between the fault point and the test end at one end of the faulty cable, and can also be used to measure the length of the cable and the propagation speed of radio waves in the cable.
The path signal generator can generate discontinuous sine wave signal of 15KHZ and maximum amplitude of 30V, which is used to find and measure the cable path. The path signal receiver is used to receive the path signal, find the cable direction and estimate the cable burial depth. The locator is used to locate the fault point.
Before the cable fault tester is used to determine the cable fault, the tester must first determine the nature of the cable fault in addition to mastering the performance and operation methods of the machine, so as to adopt appropriate working methods and testing methods. The pipeline cable fault tester is used to test power faults, so how does it test high voltage and low voltage? What are the specific steps? Xiaobian will introduce it to you. 1. First, it is necessary to judge whether the cable fault is high resistance, low resistance or grounding. According to this condition, different test methods are used.
The fault distance can be measured by the second or third pulse. Compared with the traditional test method, the advanced point of the second and third pulse method is to simplify the complex waveform in the shock high voltage flashover method into the simplest low voltage pulse short circuit. The fault waveform is very simple, so the interpretation is extremely simple, and the fault distance can be accurately calibrated. 2. When finding the path, add a signal to the cable, then use the receiver to receive the signal, and walk along the path with the signal to determine the path of the cable. 3. Locate according to the distance measured by the pipeline cable fault tester.
When the loudest sound is heard from the earphone of the pointing device, that is, the pipeline cable fault tester has found the location of the fault point.
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