Products Description

Our Cable fault location system captures transient current and voltage traveling waves at coordinated cable points. Time-difference analysis identifies the fault section, estimated position, and affected phase.

Technical Principle

Synchronized terminals detect the initial traveling wave generated by a cable fault. The master station compares wave-arrival times and known propagation velocity to calculate the fault distance, while waveform storage supports event verification and maintenance decisions.

Product Features

The Cable fault location system uses high-speed traveling-wave timing for precise cable fault positioning. Centralized and distributed formats fit dense substations and long field routes. Automatic recording preserves the current and voltage evidence around each event. Fault-section and phase indication can shorten field patrol and repair time.

Operating Conditions

Install the product in a clean, ventilated location without corrosive gas, conductive dust, water ingress, severe vibration, or strong impact. Provide reliable protective grounding, maintain the required electrical clearances, and use the rated auxiliary power supply. Confirm ambient temperature, humidity, altitude, enclosure protection, cable routing, and communication conditions before production and installation.

Product Parameters

Parameter	Details
Location error	≤0.2%×L + 5 m, where L is the cable length between terminals
Location accuracy	≥99%
Traveling-wave sensor band	1 kHz-10 MHz
Traveling-wave sampling	≥100 MHz
Traveling-wave current range	0.1 A-100 kA
Continuous record length	≥1000 μs
Waveform event time	≤100 ns
Fault-diagnosis success rate	≥95%
Main-station analysis time	≤10 min
Terminal protection	IP68

Product Advantages

The Cable fault location system uses high-speed traveling-wave timing for precise cable fault positioning.
Centralized and distributed formats fit dense substations and long field routes.
Automatic recording preserves the current and voltage evidence around each event.
Fault-section and phase indication can shorten field patrol and repair time.

Main Applications

The Cable fault location system is used for high-voltage cable circuits, cable tunnels, cross-bonded routes, and T-connected networks.

It serves utility transmission cables, industrial cable systems, and urban underground networks.

Two end terminals cover up to 10 km in the stated configuration, with extra terminals for longer routes.

Components

Part	Function
Traveling-wave sensors	Couple transient current or voltage signals from the cable circuit.
High-speed acquisition units	Digitize and time-stamp the transient waveforms.
Management and timing unit	Synchronizes terminals and calculates the fault position.
Platform software	Displays events, sections, waveforms, phases, and alarms.