Mobile Cable Fault Location System | VS-6215

Products Details

VS-6215 Cable Fault Test Vehicle is an all-in-one mobile diagnostic platform. Weshine developed this system for fast and accurate detection of underground cable faults. The system integrates advanced fault pre-location, pinpointing, cable route tracing, cable identification, and high-voltage impulse testing. This single vehicle-mounted platform eliminates the need for multiple independent instruments during field operations.

The complete system consists of a 15-inch industrial cable fault analyzer and a 32kV high-voltage impulse generator. It also includes a DC burn-through bridge, a 2048J high-energy surge generator, and an acoustic-magnetic pinpoint locator. An intelligent cable route locator, 50-meter integrated cable reels, and a safety system complete the package. The modular design simplifies transportation, installation, and maintenance while improving overall testing efficiency.

The cable fault analyzer supports Low Voltage Pulse (TDR), High Voltage Flashover, Multiple Pulse, and DC Burn-through testing methods. Technicians achieve rapid diagnosis of open circuits, short circuits, low-resistance faults, high-resistance leakage faults, and flashover faults. The system measures cable length, propagation velocity, and fault distance with high accuracy over testing distances up to 100 km.

The integrated high-voltage control unit delivers continuously adjustable output up to 32 kV. It features three selectable energy storage capacitors with a maximum impulse energy of 2048 J. This capability makes this Mobile Cable Fault Location System ideal for locating high-resistance and intermittent cable faults. The built-in DC burn-through function quickly carbonizes difficult insulation faults to improve fault location efficiency.

For precise fault pinpointing, the acoustic-magnetic locator detects discharge sound and magnetic signals during impulse discharge. Intelligent background noise suppression and automatic trigger adjustment guide field technicians clearly. Directional guidance and cable centerline indication allow operators to locate fault points within ±0.2 m, even in noisy field environments.

The intelligent cable locator supports underground cable route tracing, depth measurement, live/dead cable identification, and grounding fault detection. It utilizes multiple active and passive frequencies for versatile field operation. Digital signal processing and automatic impedance matching ensure stable performance in areas with heavy electromagnetic interference.

To maximize operator safety, the VS-6215 integrates grounding verification, step voltage monitoring, and vehicle door safety interlocks. Automatic high-voltage discharge, real-time video monitoring, and emergency shutdown protection actively safeguard technicians. Any abnormal safety condition immediately disables high-voltage output and automatically discharges remaining energy.

Designed for utility maintenance teams and field engineers, the VS-6215 provides a complete mobile cable fault management solution. This equipment significantly reduces outage time while improving testing accuracy and operator safety. As a reliable platform, it complements other advanced solutions like partial discharge testing equipment across power networks. Engineers often rely on comprehensive Electrical Testing Instruments to maintain overall grid integrity.

Technical Parameters

Technical Parameters
Parameter	Specification
Display	15-inch Industrial LCD
Operating System	Linux
Storage	32 GB SSD
Test Methods	TDR, Flashover, Multiple Pulse, DC Burn-through
Burn-through Voltage	0–40 kV
Burn-through Current	0–100 mA
Pulse Width	100 ns–10 μs
Pulse Amplitude	120 V
Gain Adjustment	-20 to +40 dB
Output Impedance	120 Ω
Test Distance	5 m–100 km
Blind Zone	≤5 m
Sampling Frequency	6.25–200 MHz
Fault Location Accuracy	±0.2 m
System Error	<±1%

 

High Voltage Control Unit
Parameter	Specification
Output Voltage	0–32 kV Adjustable
Impulse Energy	2048 J
Capacitor Banks	4 μF / 32 kV, 16 μF / 16 kV, 64 μF / 8 kV
Operating Modes	DC, Single Pulse, Continuous Pulse
Pulse Interval	1–10 s
Display	5-inch Color LCD
Input Power	AC220V ±10%, 50 Hz

 

Acoustic-Magnetic Pinpoint Locator
Parameter	Specification
Dynamic Range	Sound >104 dB, Magnetic >110 dB
Frequency Range	100–1500 Hz
Display	320 × 240 Color LCD
Low-pass Filter	100–400 Hz
Band-pass Filter	150–600 Hz
High-pass Filter	200–1500 Hz

 

Intelligent Cable Locator
Parameter	Specification
Functions	Route Tracing, Depth Measurement, Cable Identification
Active Frequencies	512 Hz–196 kHz (10 frequencies)
Passive Frequencies	50 Hz, 60 Hz
Transmitter Output Power	10 W
Receiver Display	3.5-inch Color LCD
Transmitter Display	5.6-inch Touch Screen
Receiver Battery	7.4 V / 6400 mAh
Transmitter Battery	11.1 V / 12800 mAh

Customer Case

• Industry: Power Distribution Utility – Southeast Asia

• Problem: A regional power utility deployed the VS-6215 Cable Fault Test Vehicle to troubleshoot a 35 kV underground feeder. The feeder experienced repeated outages after heavy rainfall. The utility needed a fast solution to restore power.

• Testing Process: Using the integrated Multiple Pulse method, technicians pre-located the fault within minutes. The acoustic-magnetic pinpoint locator identified the exact fault position with an accuracy better than 0.2 m. This precision allowed excavation only at the damaged section.

• Result: The utility significantly reduced outage duration and minimized excavation work. Technicians restored power service much faster than with conventional cable fault testing methods.

• Benefits: The project saved labor costs, preserved roadway infrastructure, and increased overall grid reliability for the local utility.

How the VS-6215 Works

The VS-6215 first performs cable pre-location using TDR, flashover, or multiple pulse technology. These methods determine the approximate fault distance.

The high-voltage impulse generator then injects surge energy into the faulty cable. This action produces detectable discharge signals along the cable route.

The acoustic-magnetic pinpoint locator accurately determines the fault position by synchronizing sound and magnetic signals. Meanwhile, the intelligent cable locator identifies cable routes, measures burial depth, and verifies cable identity before excavation.

Features

• Complete vehicle-mounted cable fault diagnostic solution
• Cable fault testing, pinpointing, route tracing, and cable identification
• Supports TDR, High Voltage Flashover, Multiple Pulse, and DC Burn-through methods
• Adjustable high-voltage output up to 32 kV
• Maximum impulse energy of 2048 J
• DC burn-through function for high-resistance cable faults
• Tests cable lengths up to 100 km
• Fault location accuracy up to ±0.2 m
• Intelligent acoustic-magnetic fault pinpointing technology
• Underground cable route tracing and depth measurement
• Live and de-energized cable identification
• Multiple active and passive locating frequencies
• Automatic impedance matching technology
• Intelligent grounding and step-voltage safety monitoring
• Automatic high-voltage discharge after testing
• Industrial Linux operating system with 15-inch display
• Built-in data storage and waveform analysis
• Designed according to DL/T 849 series standards

Application Scenarios

• Power Utility Companies: Fault diagnosis and preventive maintenance for transmission and distribution cable networks.

• Railway Systems: Maintenance of railway signaling and communication cables.

• Airports: Testing of runway lighting cables, navigation systems, and underground power cables.

• Municipal Engineering: Underground street lighting, traffic signal, and public utility cable maintenance.

• Industrial Plants: Fault detection for factory power distribution networks and underground electrical infrastructure.

• Electrical Contractors: Cable acceptance testing, troubleshooting, and commissioning services.

Applications

• Underground Power Cable Fault Location
• High-Resistance Fault Detection
• Flashover Fault Testing
• Open Circuit and Short Circuit Testing
• Cable Route Tracing
• Cable Identification
• Cable Depth Measurement
• DC Burn-through Testing
• AC Withstand Voltage Preparation
• Preventive Cable Maintenance
• Utility Emergency Fault Repair
• Railway & Airport Cable Inspection

FAQ

• What cable faults can the VS-6215 detect? The system detects open circuits, short circuits, low-resistance faults, high-resistance leakage, flashover faults, and insulation breakdowns.

• What is the maximum testing distance? The cable fault analyzer supports cable testing over distances up to 100 km.

• Can the system identify underground cable routes? Yes. The integrated cable locator provides cable route tracing, depth measurement, and cable identification.

• Is the high-voltage generator suitable for difficult faults? Yes. The 32 kV impulse generator provides up to 2048 J of surge energy and includes a DC burn-through function for high-resistance faults.

• Which industries commonly use the VS-6215? Power utilities, railway operators, airports, industrial plants, municipal engineering departments, and electrical service contractors widely use it.

Weshine Advantages

Weshine Electric develops professional cable fault diagnostic systems for utilities and industrial users worldwide. The VS-6215 Cable Fault Test Vehicle combines intelligent fault pre-location, high-energy surge testing, precision acoustic-magnetic pinpointing, advanced cable route locating, and comprehensive safety protection into one integrated mobile platform. It enables faster fault diagnosis, higher testing accuracy, and improved field efficiency while reducing downtime and maintenance costs.