Product Introduction of Mine Cable Fault Detector:
The mine cable fault detector is based on the partial discharge method that does not damage the original layout of the cable, and can accurately detect the damaged parts of the cable. It also has the function of testing after repair, so it is a reliable testing instrument for coal mine cable repair operations. Coal mines are major users of cables. Due to the harsh underground working conditions, the annual damage to various cables is relatively large. To save costs and reduce production costs, each mine generally has its own cable repair team. However, due to the limitations of testing equipment and technology, when repairing cables such as comprehensive mining cables, flaw detection often fails to meet expectations, and the forced breakdown method, which causes significant damage to cable insulation, is often used. Our company, based on the advantages of various testing instruments and tailored to the requirements of mine cables, has specially designed and manufactured a new generation of mine cable testers.
Structural Features of Mine Cable Fault Detector:
1. The GHKLC mine cable fault detector consists of a control part (low voltage) and high-voltage rectification, discharge, and testing parts. Safe spaces are reserved between high and low voltage, and between high/low voltage and the casing.
2. To ensure the safety of equipment and personnel, the high voltage must be initiated by a designated person using a key.
3. Each time flaw detection or cable testing is performed, the high voltage is guaranteed to start from zero and increase. There are high and low voltage limit states, and the voltage increase or decrease process is controlled by buttons, with smooth voltage change rates and safe and simple operation.
4. The DC withstand voltage test time can be automatically controlled by a digital timer (or manually), and the test time is accurate and reliable.
5. The leakage current can be measured at any time as needed during the withstand voltage test.
6. The equipment has overcurrent and short-circuit protection, with pre-start warning and overcurrent protection.
7. The control panel is equipped with power switch, high voltage start, high voltage interruption, voltage increase, voltage decrease switches or buttons, and a digital timer relay for withstand voltage test time.
8. The display panel has meters for high voltage, leakage current, and low voltage total current, as well as indicator lights for power, high voltage, timing, and a window for observing ball gap discharge.
9. A dedicated high-voltage discharge rod is provided for discharging after each flaw detection or test to ensure safety, and there is a grounding symbol at the bottom of the box.
Technical Parameters:
1. Working voltage: AC220V 50Hz
2. Flaw detection DC output: 0-15KV
3. Cable flaw detection accuracy: ±50mm
4. Test output voltage: 0-30KV
5. High-voltage energy storage capacitor: 1.4μf/12KV
6. AC output voltage: 0-22KV
7. Withstand voltage test time: 0-30s (adjustable)
8. Leakage current test: 0-300μA
9. High-voltage transformer capacity: 4KVA
10. Discharge ball adjustment distance: 0-10mm
11. Dimensions: 900×850×1200
