Mine Cable Fault Detector
Yangzhou Darui
Coal mines are major users of cables. Due to the extremely harsh underground working conditions, the annual damage to various cables is relatively large. To save expenses and reduce costs, each coal mine generally equips its own cable repair team. However, due to harsh testing conditions and limitations of testing equipment, the flaw detection of mine cables often falls short of expectations. 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.
Working Principle of Mine Cable Fault Detector:
The mine cable fault detector is based on the partial discharge method, which does not damage the original layout of the cable, to detect faults and accurately locate the damaged part of the cable. It also has the function of testing after repair, making it a reliable tool 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 expenses and reduce production costs, each mine generally has its own cable repair team. However, due to limitations of testing equipment and processes, flaw detection during the repair of cables for fully mechanized mining often falls short of expectations, and most use the forced breakdown method, which causes significant damage to the cable insulation.
Product Introduction of Mine Cable Fault Tester:
The GHKLC mine cable fault detector is based on the partial discharge method, which does not damage the original layout of the cable, to detect faults. It can simply and accurately locate the damaged part of the cable, and also has the function of testing after repair, making it a fully reliable tool for coal mine cable repair operations. Coal mines are major users of cables. Due to the strict underground working conditions, the annual damage to various cables is relatively large. To save expenses and reduce production costs, each mine generally has its own cable repair team. However, due to limitations of testing equipment and processes, flaw detection during the repair of cables for fully mechanized mining often falls short of expectations, and most use the forced breakdown method, which causes significant damage to the cable insulation.
Structural Features:
1. The GHKLC consists of a control part (low voltage) and high-voltage rectification, discharge, and testing parts. Sufficient safety space is reserved between high and low voltage, and between high/low voltage and the casing.
2. To ensure the safety of equipment and personnel, high voltage initiation must be operated by a designated person with a key.
3. Each flaw detection or cable test ensures that high voltage starts from zero, with high and low voltage limit states. The voltage increase or decrease process is controlled by buttons, with smooth voltage change rates, safe and simple operation.
4. The DC withstand voltage test time can be automatically set by a digital timer (or manually controlled), with accurate and reliable test time.
5. 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 total low voltage current, as well as indicator lights for power, high voltage, timing, and a window for observing sphere gap discharge.
9. A dedicated high-voltage discharge rod is provided for discharging after each flaw detection or test to ensure safety, and the bottom of the box has a grounding symbol.
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 sphere adjustment distance: 0-10mm
11. Dimensions: 900×850×1200
Product Related Keywords and Aliases: Mine Cable Fault Detector, Cable Fault Detector
