Mining Cable Fault Detector
It consists of a control part (low voltage) and high-voltage rectification, discharge, and testing sections. Sufficient safety space is reserved between high and low voltage parts, and between them and the enclosure.
Technical Parameters:
1. Current and Voltage: Single-phase AC 220V, 50Hz
2. DC Output Voltage for Fault Detection: 0—30KV (button control)
3. Cable Fault Detection Accuracy: within ±50mm
4. Test Output DC Voltage: 0—30KV (button control)
5. Automatic Withstand Voltage Test Time: 0—30 minutes (settable)
6. Leakage Current Test Range: 0—100 microamperes
7. Main Transformer Rated Capacity: 3KVA
8. Rectification Method: Single-phase half-wave
9. Discharge Sphere Gap: Adjustable via handle screw
10. Dimensions: 1100×1000×1200mm (W×D×H)
11. Weight: 85 Kg
Shanghai-produced Mining Cable Fault Detector consists of a control part (low voltage) and high-voltage rectification, discharge, and testing sections. Sufficient safety space is reserved between high and low voltage parts, and between them and the enclosure.
Technical Parameters:
1. Current and Voltage: Single-phase AC 220V, 50Hz
2. DC Output Voltage for Fault Detection: 0—30KV (button control)
3. Cable Fault Detection Accuracy: within ±50mm
4. Test Output DC Voltage: 0—30KV (button control)
5. Automatic Withstand Voltage Test Time: 0—30 minutes (settable)
6. Leakage Current Test Range: 0—100 microamperes
7. Main Transformer Rated Capacity: 3KVA
8. Rectification Method: Single-phase half-wave
9. Discharge Sphere Gap: Adjustable via handle screw
10. Dimensions: 1100×1000×1200mm (W×D×H)
11. Weight: 85 Kg
Operating Environment Conditions:
1. Ambient medium temperature: —5℃—＋40℃;
2. Relative air humidity: not greater than 85% (at a temperature of 20℃±5);
3. Altitude: not exceeding 2500m;
4. No explosive media in the surroundings, and no gases or dust that can corrode metals or damage electrical insulation;
5. No significant impact or vibration, and no place where rain or snow can intrude.
Structural Features:
1. This equipment consists of a control part (low voltage) and high-voltage rectification, discharge, and testing sections. Shanghai-produced Mining Cable Fault Detector has sufficient safety space between high and low voltage parts, and between them and the enclosure.
2. To ensure the safety of equipment and personnel, high voltage must be operated by a designated person using a key before startup.
3. Each time fault detection or cable testing is performed, the high voltage is guaranteed to start from zero and gradually increase. There are high and low voltage limit shapes. The voltage increase or decrease process is controlled by buttons, with smooth voltage change rates, making operation safe and simple.
4. The DC withstand voltage test time can be automatically controlled by a digital timer (or manually controlled), ensuring accurate and reliable test duration.
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 startup pre-alarm and overcurrent protection.
7. The control panel is equipped with power switch, high voltage start, high voltage stop, voltage increase, voltage decrease switches or buttons, and a digital timer relay for withstand voltage testing.
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 an observation window for sphere gap discharge.
9. A dedicated high-voltage discharge rod is provided for discharging after each fault detection or test to ensure safety, and there is a grounding symbol at the bottom of the box.
