Author: Noyafa–CCTV Tester
Analysis of advantages of cable fault tester With the development of the market, cable fault tester is mainly divided into common and three pulses, and what are the advantages and functions of these two types, Yuange will explain to you. 【Functional advantages of common cable fault tester】 1. Analysis of the advantages of cable fault testers With the development of the market, cable fault testers are mainly divided into common and three pulses, and what are the advantages and functions of these two types, Yuange will explain to you. 【Functional advantages of common cable fault tester】1. It can measure the high and low resistance faults of all cables below 35KV, and has a wide range of adaptability.
2. With user-friendly software and full Chinese menu. The key definitions are simple and clear. The measurement method is simple and fast.
Cable fault tester 3． The success rate of fault detection, test accuracy and test convenience are better than any domestic testing equipment. 4. The 8-inch color LCD touch screen is used as the display terminal, and the instrument has powerful data processing capability and friendly display interface. 5. With sampling high voltage protection measures.
The test instrument will not crash and be damaged in the shock high pressure environment. 6. With a computer communication interface, it is convenient to save data and graphics in the computer. 7. No test blind spot.
8. The built-in power supply can test the open-circuit and low-resistance short-circuit faults of cables in a power-free environment. [Functional advantages of the three-pulse cable fault tester] 1. It can measure the high and low resistance faults of all cables of 35KV and below, and has a wide range of adaptability. 2. Adopt“three-stage pulse method”and“three-stage multiple pulse method”testing technology.
At the same time, it also has the traditional high pressure flashover method and low pressure pulse method. 3. Any high-resistance fault presents simple waveform characteristics similar to low-voltage pulse short-circuit fault, which is very easy to interpret. 4. User-friendly software and full Chinese menu.
The key definitions are simple and clear. The measurement method is simple and fast. 5. The central control unit uses one-key control to trigger three-level signal output methods in sequence to ensure safety and success rate.
The central control unit can prompt the operation steps and monitor the work progress. 6. With the test waveform storage function, the waveforms tested on the spot can be conveniently stored in the instrument in the specified order for recall and observation at any time. A large number of field test waveforms can be stored.
7. The measured fault point waveform and the good-phase full-length open-circuit waveform can be displayed on the screen at the same time for on-screen comparison and superimposed comparison, and the fault distance can be automatically judged. 8. 11-inch bright color touch LCD screen display, with powerful data processing capabilities and friendly display interface. 9, with sampling high-voltage protection measures.
10. With 232 computer communication interface and USB communication interface, it is convenient to save data and graphics in the computer. 11. The built-in power supply can test the open circuit and low-resistance short-circuit fault of the cable in the environment without power supply. [Functional advantages of cable fault locator] 1. The data display part adopts a bright 4.3-inch OLED color liquid crystal display, which makes the display interface clearer.
2. The function and parameter adjustment part adopts a one-key programmable pulse coding keyboard, which makes the operation panel more concise and more convenient to operate. 3. The instrument will collect and display the waveform of the audio part in real time. The distance to the fault point can be roughly observed by observing the repetitive waveform characteristics and the distance axis, and the operator is not easily fatigued by observing the waveform. 4. There are single and continuous modes in the acousto-magnetic fixed-point mode. If the discharge frequency is too fast and the gap time is too short, the user can select the single mode to carefully analyze the relevant data such as a discharge waveform. At the same time, the single mode supports waveforms. Turn pages.
5. Four filter frequency bands are used in the acquisition of sound wave signals, low frequency band, medium frequency band, high frequency band and full frequency band. Users can choose according to the actual situation on site. 6. The step voltage part adopts waveform display, and the signal is continuously sampled and refreshed, so that the user can analyze the continuity of the signal and enhance the resolution of the sudden signal. 7. The step voltage part is subdivided by multiple gears, and the large signal is automatically attenuated during the adjustment process to ensure that the displayed signal is not limited when the maximum voltage amplitude within the test range is input.
8. The audio part filtering process adopts FIR digital filtering technology, which makes the characteristic frequency band more obvious and the filtering performance is better. 9. The distance display of the fault point, the distance of the fault point can be displayed within the range of 0--25m. 10. In the continuous mode, the compressed waveform within a distance of 15m can be displayed. The waveform is expanded and analyzed.
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