Mining cable fault testerIt is based on the partial discharge method without damaging the original structure of the cable, which can easily and accurately detect the damaged part 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.
Structural characteristics:
1. This device 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.
2. To ensure the safety of equipment and personnel, a dedicated person must operate with a key before high-voltage starting.
3. During each inspection or testing of the cable, it is ensured that the high voltage gradually increases from zero position, with high and low voltage limit shapes. The process of increasing or decreasing voltage is controlled by buttons, with a smooth rate of voltage rise and fall and safe and easy operation.
4. The DC withstand voltage test time can be automatically controlled by a digital system (or manually controlled), and the test time is accurate and reliable.
5. The leakage current can be measured at any time according to the needs of the withstand voltage testing process.
6. The equipment has overcurrent and short-circuit protection, as well as startup warning and overcurrent protection.
7. There 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.
8. On 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.
9. Equipped with high-voltage discharge rods for discharging after each inspection or test to ensure safety, and there is a grounding mark at the bottom of the box.