Mining cable flaw detection equipment

1Mining cable flaw detection equipmentOverview

Coal mines are major users of cables, and due to the harsh working environment underground, the annual loss of various cables is relatively high. In order to save expenses and reduce production costs, each mine generally has its own cable maintenance team. However, due to limitations in testing equipment and processes, non-destructive testing is often unsatisfactory when repairing cables such as fully mechanized mining, and most of them use forced breakdown methods that cause significant insulation damage to the cables. The mining cable fault detector of this device is based on the partial discharge method without damaging the original structure of the cable for abrasion detection. It can easily and accurately detect the damaged parts of the cable, and also has the function of testing after repair. Therefore, it is a reliable tool in the current coal mine cable maintenance business.
IIMining cable flaw detection equipmentMain technical parameters:
Current and voltage: single-phase AC220VThe50Hz
Testing DC output voltage:0—30KV(Button control)
Accuracy of cable flaw detection:±50mmwithin
Test output DC voltage:0—30KV(Button control)
Automatic voltage withstand test time:0—30divide (Can be set)
Leakage current testing range:0—100microampere
Rated capacity of main transformer:3KVA
Rectification method: single-phase half wave
Discharge Ball Gap: Handle Rod Adjustment
Overall dimensions:900×850×1200mm

Weight: Approximately100 Kg
3、 Environmental conditions for use:
1Surrounding medium temperature:—5℃—＋40℃；
2Relative air temperature: not greater than85%The temperature is20℃±5Time);
3Altitude: not exceeding2500m；
4There is no explosive medium around, and there is no gas or dust in the medium that can corrode metals and damage electrical insulation;
5Places without significant impact vibration and without rain or snow intrusion.
4、 Structural features:
1This equipment consists of a control section (low voltage) and a high voltage rectification, discharge, and testing section. There is sufficient safety space between high and low pressure, as well as between high and low pressure and the casing.
2To ensure the safety of equipment and personnel, a dedicated person must operate with a key before high-voltage starting.
3During each inspection or testing of cables, it is ensured that the high voltage gradually increases from zero position, with high and low voltage limit shapes. The process of voltage increase or decrease is controlled by buttons, with a smooth rate of voltage increase and decrease and safe and easy operation.
4The DC withstand voltage test time can be automatically controlled by digital means (or manually controlled), and the test time is accurate and reliable.
5The leakage current can be measured at any time according to the needs of the withstand voltage testing process.
6The equipment has overcurrent and short-circuit protection, as well as startup warning and overcurrent protection.
7There are power switches, high voltage start, high voltage stop, boost, buck and other switches or buttons on the control panel, as well as voltage withstand test digital time timing relays.
8On the display panel, there are measuring meters for high voltage, leakage current, and low voltage total current, as well as indicator lights for power supply, high voltage, timing, and a curved observation window for ball gap discharge.
9Equipped with high-voltage discharge rods for discharging after each inspection or test to ensure safety, and there is a grounding sign at the bottom of the box.