Cable Fault Detector
Overview and Description:
1. Specially designed for mining motor repair teams. Coal mines are major users of cables. Due to the extremely harsh underground working conditions, the annual damage rate of various cables is relatively high. To save costs and reduce expenses, most coal mines have their own cable repair teams. However, due to stringent testing conditions and equipment limitations, fault detection on mining cables often yields unsatisfactory results. Leveraging the advantages of various testing instruments and addressing the specific requirements of mining cables, our company has specially designed and manufactured a new generation of mining cable testers.
2. This device is based on the partial discharge method, which does not damage the original structure of the cable, to detect faults. It can simply and accurately detect damaged parts of the cable, and also has the function of testing after repair. Therefore, this product is a fully reliable tool in the current coal mine cable repair industry. In addition to being primarily used for cable fault detection, this detector can also be used for DC withstand voltage testing of other electrical equipment. This test bench has a simple structure and stable performance, meeting the testing needs of mining electrical equipment.
Cable Fault Detector
Technical Parameters:
Voltage: Single-phase 220V, 50Hz
Fault Detection DC Output: 0—15KV
Cable Fault Detection Accuracy: ±50mm approx.
Test Output Voltage: 0—30KV
High-Voltage Storage Capacitor: 12KV, 1.4 μF
AC Output Voltage: 0—22KV
Withstand Voltage Test Time: 0—30s (adjustable)
Leakage Current Test: 0—300μA
High-Voltage Transformer Capacity: 4KVA
Discharge Sphere Adjustment Distance: 0—10mm
Dimensions: 900×850×1200
Operating Environment Conditions
1. Ambient medium temperature: -5℃—+40℃
2. Relative air humidity: ≤85%
3. Altitude: ≤2500m
No explosive hazardous media around, and no gases or dust in the medium that can corrode metals or damage insulation.
Structural Features:
1. The GHKLC mining cable fault detector consists of a control part (low voltage) and high-voltage rectification, discharge, and testing parts. Ample safety space is reserved between high and low voltage, and between high/low voltage and the housing.
2. To ensure the safety of equipment and personnel, high voltage can only be initiated by a designated person using a key.
3. Each time a fault detection or cable test is performed, the high voltage is guaranteed to start from zero. There are high and low voltage limit shapes. The voltage increase or decrease process is controlled by buttons, ensuring smooth voltage change rates and safe, simple operation.
4. The DC withstand voltage test time can be automatically set after the digital timer (or manually controlled), ensuring accurate and reliable test time.
5. Leakage current can be measured at any time as needed during the withstand voltage test process.
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 low-voltage total current, and is equipped with indicator lights for power, high voltage, timing, and a viewing 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. The bottom of the box has a grounding symbol.
Technical Parameters:
1. Operating voltage: AC220V 50Hz
2. Fault detection DC output: 0—15KV
3. Cable fault detection accuracy: ±50mm
4. Test output voltage: 0—30KV
5. High-voltage 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
