Underground Cable Breakpoint Short Circuit Leakage Fault Location
Darui Electric recommends:
Main Technical Parameters
1. Test distance not less than 10 kilometers.
2. Fault point positioning error less than 0.5 meters.
3. Cable path detection not less than 10 kilometers.
4. Host initial test error less than 2%.
5. Host power supply: AC 220V 50HZ ±10%
6. Host dimensions: 350×250×220 (mm)
7. Host weight: 5 kg
8. Point locator power supply: DC 9V
9. Point locator dimensions: 170×135×60 (mm) (excluding probe and earphones)
10. Point locator weight: 0.5 kg (excluding probe and earphones)
Underground Cable Breakpoint Short Circuit Leakage Fault Location is a comprehensive set of equipment. It is used for testing open circuit, short circuit, grounding, low resistance, high resistance flashover, and high resistance leakage faults in power cables, as well as precise testing of open and short circuit faults in coaxial communication cables and local telephone cables. It can also test cable path, burial depth, and use radio wave speed measurement to verify cable length, and can establish cable files for routine maintenance management.
This instrument adopts multiple detection methods and applies the most advanced electronic technology achievements of the contemporary era. It uses computer technology and microelectronics technology, and has the characteristics of high intelligence, complete functions, wide application range, accurate testing, and convenient use.
Features:
1. Complete functions, safe, rapid, and accurate fault testing. The instrument uses low-voltage pulse method and high-voltage flashover method for detection, can test various faults of cables, and can directly test flashover and high-resistance faults of power cables without burning through. If equipped with an acoustic point locator, it can accurately determine the location of the fault point.
2. High testing accuracy. The instrument uses high-speed data sampling technology with a reading resolution of 1m. High intelligence. Test results are automatically displayed on a large-screen LCD in small text and data, making fault judgment intuitive. It also features a menu display operation function, requiring no special training for operators.
3. Has waveform and parameter storage and recall functions. Uses non-volatile devices, so waveforms and data are not lost after power off.
4. Has dual-trace display function. The test waveform of the faulty cable can be compared with the normal waveform, which is helpful for further judgment of the fault.
5. Has waveform expansion ratio function. By changing the waveform ratio, the waveform can be expanded for precise testing.
6. Control measurement cursor, can automatically search along the line, and automatically stop at the inflection point of the fault waveform.
7. Can arbitrarily change the position of the dual cursors, directly displaying the direct distance or relative distance between the fault point and the test point.
8. Has printing function. Print and archive the test results.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
