Coal mines are major users of cables. Due to the harsh underground working conditions, the annual damage and loss of various cables are relatively large. To save expenses and reduce production costs, each mine generally has its own cable fault detector. However, due to limitations in testing equipment and processes, fault detection testing often falls short when repairing cables such as fully mechanized mining cables, and most methods use forced breakdown methods that damage the cable insulation. This device is based on the partial discharge method, which does not destroy the original structure of the cable, to detect faults. It can simply and accurately detect the damaged parts of the cable, and also has the function of testing after repair. Therefore, it is a fully reliable tool for cable maintenance in coal mines. The mining cable fault detection equipment is specially designed for testing various types of mining cables below 6KV on the coal mine surface, and for DC withstand voltage testing and leakage current testing after cable repair. It is a comprehensive essential tool for cable repair and testing that meets the requirements of the "Coal Mine Electrical Test Regulations" and is highly practical.
Main technical parameters of the mining cable fault detector:
Current and voltage: Single-phase AC 220V, 50Hz
DC output voltage for fault detection: 0—30KV (button control)
Cable fault detection accuracy: within ±50mm
Test output DC voltage: 0—30KV (button control)
Automatic withstand voltage test time: 0—30 minutes (settable)
Leakage current test range: 0—100 microamperes
Main transformer rated capacity: 3KVA
Rectification method: Single-phase half-wave
Discharge ball gap: Handle screw adjustment
Dimensions: 1100×1000×1200mm (width × depth × height)
Weight: approximately 45Kg
