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The cable fault locator is mainly developed by our company for accurate fault point location of cables. It is a high anti-interference, high-sensitivity cable fault accurate point positioning test instrument. This instrument combines low-noise design with high-performance digital filters, adopts FIR filter, and integrates multiple working modes such as acoustic-magnetic synchronous point positioning and step voltage, providing more ways for accurate fault point location of cables. Equipped with a 4.3-inch high-brightness OLED color LCD, it is clearly visible even outdoors. The intuitive and simple graphical display and one-key operation mode allow accurate and rapid point positioning of various cable faults.
【Functional Features】
1. The data display part adopts a high-brightness 4.3-inch OLED color LCD, making the display interface clearer.
2. The function and parameter adjustment part adopts a one-key programmable pulse encoding keyboard, making the operation panel more concise and operation more convenient.
3. This 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 prone to fatigue when observing the waveform.
4. In the acoustic-magnetic point positioning mode, there are single and continuous modes. 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 single discharge waveform and related data. At the same time, waveform page turning is supported in single mode.
5. In the acoustic signal acquisition, 4 filter frequency bands are adopted: 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 users can enhance the continuity analysis of the signal and the resolution of sudden jump signals.
7. The step voltage part has multiple gear subdivisions. During the adjustment process, large signals are automatically attenuated to ensure that when the maximum voltage amplitude within the test range is input, the displayed signal is not limited.
8. The audio part filtering processing adopts FIR digital filtering technology, making the characteristic frequency band more obvious and the filtering performance better.
9. The distance display of the fault point can show the distance within the range of 0--25m.
10. In continuous mode, the compressed waveform within 15m distance can be displayed. In single mode, the waveform within 15m distance can be expanded for analysis.
【Technical Parameters】
1. 84dB maximum volume limit
2. Display fault distance, maximum 25m
3. Audio test accuracy 0.1m
4. Audio waveform display (15m)
5. Electromagnetic intensity display: rectangular bar display, digital display, maximum value recording function
6. Automatic detection of pulse signals
7. Step voltage waveform display
8. Step voltage multi-gear gain adjustment
9. Display: 4.3-inch high-brightness OLED display, resolution 480×272
10. Continuous use time about 7 hours
11. Audio gain greater than 110dB
12. Frequency range: 100Hz---1500Hz
13. Low pass: 100---400Hz Band pass: 150---600Hz High pass: 200---1500Hz
14. Step voltage sensitivity: 0.1mV---75V
15. Isolation interference: 50Hz, DC
16. Volume: 240mm×130mm×120mm
17. Weight: ≤1.4kg
18. Battery: 12 rechargeable batteries
【Functions and Features】
1. Can test high and low resistance faults of all cables below 35KV, with wide adaptability.
2. Has user-friendly software and full Chinese menu. Key definitions are simple and clear. Measurement methods are simple and fast.
3. The success rate of fault detection, test accuracy, and test convenience are superior to any domestic detection equipment.
4. 8-inch color LCD touch screen as the display terminal, the instrument has strong data processing capability and friendly display interface.
5. Has sampling high voltage protection measures. The test instrument will not crash or be damaged in impact high voltage environments.
6. Has computer communication interface, can easily save data and graphics in the computer.
7. No test blind area.
8. Built-in power supply, can test cable open circuit and low resistance short circuit faults in environments without power supply.
【Main Performance Indicators】
1. Test methods: low voltage pulse method, high voltage flashover method;
2. Impact high voltage: lower than 35KV power cable;
3. Data sampling rate: 100MHz, 50 MHz, 25MHz, 12.5 MHz;
4. Test distance: >30Km;
5. Reading resolution: less than 1m;
6. System test accuracy: less than 50cm;
7. Test cable pulse width settings: "0.05", "0.1", "0.2", "0.5", "1", "2", "8" microseconds;
8. Has test waveform storage function: can store the waveforms tested on site in the instrument in a specified order for convenient recall and observation at any time. Can store a large number of field test waveforms;
9. Can display the measured fault point waveform and the full-length open circuit waveform of the good phase on the screen simultaneously for same-screen comparison and overlay comparison, and can automatically judge the fault distance;
10. Built-in power supply: after fully charged, the instrument can work continuously for more than 3 hours, and can also work with external AC power;
11. Working conditions: temperature -10℃～+45℃, relative humidity 90%.
High voltage signal unit: ultra-light high frequency high voltage signal generator
【Functions and Features】
1. Has voltage adjustment and automatic voltage stabilization functions.
2. Uses switching power supply electronic boost. Small size, light weight.
3. Has open circuit and short circuit automatic protection functions.
4. Output voltage display is a color LCD screen compass-style dynamic display.
5. Complete and reliable functions, simple wiring.
6. The box body adopts engineering plastic insulating material.
【Main Performance Indicators】
1. Output voltage: ≤36KV negative DC
2. Working voltage: 220V±10% 50Hz
3. Display voltage value error: <±2%
4. Output current: ≤40mA
5. Working temperature: -10℃～50℃
6. Working humidity (relative): ≤80%
7. Discharge energy: ≤1200J/5S (standard 4μF external capacitor, customizable)
8. Minimum discharge cycle: 3 seconds
9. Maximum power: <1.5KVA
10. Altitude: below 3000 meters
11. Volume: 43cmx38cmx23cm
12. Weight: 11kg
Power intelligent cable fault tester supporting composition diagram:
Note: The above product information and technical parameters are compiled and released by Darui Company for you
