Author: Noyafa–CCTV Tester
What are the specific working principles of the cable fault tester? Nowadays, with the development of social interaction, the power output is stable and fast, and the signal transmission is fast and convenient. Can't deviate from the standard arrangement of cables, but because it does not affect the operation and aesthetics of the environment. What are the specific working principles of most cable buried cable fault testers? Nowadays, with the development of social interaction, the power output is stable and fast, and the signal transmission is fast and convenient.
Can't deviate from the standard arrangement of cables, but because it does not affect the operation and aesthetics of the environment. Most cables are buried underground or overhead. In this way, damage to the cable is also common due to its own or external influence.
The longer the failure lasts, the more damage it will cause. Therefore, when detecting the fault location, it has a great influence on maintenance. The advent of cable fault testers solved the problem of excessive time and labor consumption on these issues.
According to the cable fault detection principle, when the cable fault tester is in the flashover trigger mode, the flashback callback formed by the instantaneous breakdown discharge of the cable fault point is a random single transient waveform. Therefore, the cable fault tester A storage oscilloscope Capture and display a single transient waveform to ensure the location of the point of failure. The cable fault tester adopts the digital storage technology to sample the high-speed A/D converter, converts the output transient waveform analog signal into digital form signal in real time, stores it in the high-speed memory, and then processes the numbers through the microprocessor of the CPU. Click the documentation link to view more information signals, send them to the LCD display control circuit, and convert them to information in the form of a time series lattice.
Display the currently sampled waveform parameters on the LCD screen display for comparison testing. When the cable fault tester is in the pulse trigger mode, the instrument will send out a detection pulse according to a certain period, and add it to the detected cable and input circuit, at the same time start the A/D converter to work synchronously, and sample and store , process and display the same operation flow as the above process. The reflected echo should be displayed on the LCD display.
Cable fault testers have been used as cables to quickly transmit signals in power, communication and other equipment to detect the specific location of the fault, so as to repair the fault in a short time and reduce the loss caused by the cable fault. The above is the detailed working principle of the cable fault tester, which can make the instrument more convenient when combined with actual use.
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