35kV Underground Cable Fault Testing System
Product Details
35kV Underground Cable Fault Testing System is a comprehensive cable fault detection solution designed for power utilities, electrical contractors, industrial facilities, railway systems, municipal infrastructure, and maintenance service providers. Combining advanced fault pre-location and precise fault pinpointing technologies, the system enables efficient diagnosis and location of underground cable faults in medium- and low-voltage cable networks up to 35kV.
The system consists of two major modules: the Cable Fault Testing System and an advanced cable fault pinpointer. Mounted on a rugged mobile trolley, the complete solution is easy to transport and operate in field environments.
The Cable Fault Testing System combines a high-performance Cable Fault Tester and a High Voltage Surge Generator. It supports low-voltage pulse reflection, high-voltage flashover testing, and multiple impulse testing methods, allowing users to accurately determine cable length, propagation velocity, and fault distance. Advanced waveform capture and analysis technology automatically identifies fault characteristics and significantly improves testing efficiency.
Equipped with a 10.1-inch high-brightness TFT touch screen and embedded control system, the tester offers an intuitive user interface with both touch and rotary encoder operation. The built-in lithium battery supports more than five hours of continuous operation, enabling field testing without external power supplies.
The integrated High Voltage Surge Generator provides DC withstand voltage testing and impulse discharge functions for fault breakdown and pre-location. Multiple voltage levels and discharge modes are available to accommodate different cable types and fault conditions. Comprehensive protection mechanisms, including zero-start protection, automatic discharge, overcurrent protection, and over-temperature protection, ensure operator safety during high-voltage testing.
For precise fault pinpointing, the Cable Fault Pinpointer utilizes advanced acoustic-magnetic synchronization technology. By simultaneously detecting discharge sound waves, electromagnetic signals, and vibration signals generated at the fault point, the system automatically calculates the acoustic-magnetic time difference and accurately identifies the exact fault location. Intelligent noise suppression and multiple filtering modes enable reliable operation even in noisy field environments.
Designed for accuracy, portability, and ease of use, the Integrated Cable Fault Testing System provides a complete solution for cable fault pre-location, route tracing, fault pinpointing, and cable length measurement, helping maintenance teams reduce outage time and improve repair efficiency.
Technical Parameters
Cable Fault Tester Specifications
| Parameter | Specification |
| Display | 10.1-inch TFT Color Touch Screen |
| Resolution | 1024 × 600 |
| Brightness | 280 nit |
| Battery Capacity | 10.4Ah Lithium Battery |
| Charging Time | Approximately 2 Hours |
| Operating Time | More Than 5 Hours |
| Sampling Frequency | 1MHz – 400MHz |
| Maximum Testing Distance | ≥ 120 km |
| Minimum Resolution | 0.07 m |
| Dead Zone | ≤ 10 m |
| Measurement Accuracy | ≤ ±(0.5% × L + 1m) |
| Waveform Storage | > 8000 Waveforms |
| Multiple Pulse Storage | > 250 Records |
| Communication Interface | USB |
| Operating Temperature | -20°C to +65°C |
High Voltage Surge Generator Specifications
| Parameter | Specification |
| Power Supply | AC 220V |
| Output Voltage Levels | 8kV / 16kV / 32kV |
| Maximum Surge Voltage | 32kV |
| High Voltage Current | 0–60mA |
| Output Polarity | Negative Polarity |
| Single-Stage Discharge Energy | 2048J |
| Maximum Power Consumption | 2000W |
| Discharge Mode | Manual / Automatic Timing |
| Protection Functions | Overcurrent, Overtemperature, Auto Discharge |
Cable Fault Pinpointer Specifications
| Parameter | Specification |
| Positioning Principle | Acoustic-Magnetic Synchronization |
| Fault Location Accuracy | ≤ 0.1 m |
| Route Tracing Accuracy | ≤ 0.5 m |
| Display | 5-inch High-Brightness LCD Touch Screen |
| Sensor Protection Rating | IP65 |
| Filter Modes | Full-Pass, Band-Pass, Low-Pass, High-Pass |
| Battery Type | Rechargeable Lithium Battery |
| Standby Time | > 8 Hours |
| Weight | 7 kg |
| Operating Temperature | -25°C to +65°C |
Applications
- Power Distribution Cable Fault Location
- Underground Power Cable Maintenance
- Utility Network Fault Diagnosis
- Street Lighting Cable Testing
- Industrial Plant Cable Inspection
- Railway Cable Maintenance
- Municipal Infrastructure Cable Troubleshooting
- Communication and Coaxial Cable Testing
- Cable Route Tracing and Verification
- Preventive Maintenance and Emergency Repair
Weshine Advantages
Weshine Electric provides advanced cable fault testing solutions designed for utility companies, industrial facilities, electrical contractors, and maintenance organizations worldwide. As a core solution in our professional cable fault locating system catalog, our 35kV Underground Cable Fault Testing System combines high-precision fault pre-location, intelligent waveform analysis, powerful surge generation, and accurate fault pinpointing technologies. With reliable performance, user-friendly operation, and comprehensive technical support, Weshine helps customers reduce downtime, improve maintenance efficiency, and ensure the safe operation of underground cable networks.