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
What are the functions of the cable identification instrument? The cable identification instrument is a special instrument developed by our company according to the needs of the power industry. The cable identification instrument is used to identify the functions of a cable identification instrument to be found in a bundle of cables in the erection, migration, maintenance and troubleshooting of power cables. The cable identification instrument is a kind of cable identification instrument developed by our company according to the needs of the power industry. special equipment. The cable identification instrument is used to identify a specific cable to be found in a bundle of cables in the erection, migration, maintenance and troubleshooting of power cables; it has the advantages of accurate cable identification (double identification of direction and amplitude), fast, simple operation, and application. Wide range and so on.
It is a new type of instrument with advanced technology and superior performance of cable fault tester among similar instruments in China. The cable identification instrument consists of three parts: a signal generator, a receiving identification clamp and an indicator meter. When the receiving identification clamp signal detector is used, the signals detected on other cables are much smaller and in opposite directions, so it is easy to determine the cable under test. It is necessary to add a special signal to the identified cable, and the signal needs to be received by a dedicated receiver. Using this feature, the cable to be found can be identified.
The signal generator mainly generates a special pulse modulation signal, which is added to the cable under test that has stopped running through the output line, and the receiving clamp is used to find the cable under test in the field. When the receiving clamp detector detects the special signal applied to the cable, the signal The pointer of the power meter on the detector swings synchronously with the frequency of the applied signal, while the signals detected on other cables are much smaller and in the opposite direction. By indicating the amplitude and direction of the power meter, the cable identification instrument can easily identify the cable under test. When the receiving clamp signal detector is used in combination with the signal generator, it can be used for judging the live state of the cable, or assisting in finding the short-circuit position of the cable. When the receiver clamp signal detector is used, the main cable fault detector of the signal generator should clamp the cable with the clamp jaw.
1. Left and right direction indication: The left and right arrows show the cable position, which is convenient and intuitive. 2. Tracking correct and wrong prompts: The innovative patented technology of AC signal direction measurement is used to eliminate the ground return and induced current interference of adjacent and crossed pipelines. When the cable to be tested is correctly traced, the pointer points forward; when it traces to the adjacent cable, the pointer is backward, and a question mark is displayed, indicating that the tracking is wrong.
3. Highly anti-interference: The unique digital processing method can completely suppress the power frequency and harmonic interference of the adjacent running cables. 4. Voice prompt: When it is very close to the top of the cable, there is a voice prompt. 5. Single-key measurement of pipeline depth and current intensity: You can directly read the depth value and the magnitude of the current carried by the cable.
6. A variety of detection methods: In addition to the traditional sound peak method and sound valley method, innovative precision methods are specially provided. The traditional sound peak method has a large sensing range, which is not conducive to accurate detection. Although the sound valley method is accurate, it cannot distinguish parallel cables. The precise method has a very narrow response range, is very accurate, and can distinguish parallel cables. The best way to route.
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