Overhead Transmission Line Fault Locator

This equipment is designed to measure the distance between a fault location and the measuring point (substation or transformer connection) on overhead transmission lines experiencing short-circuit, open-circuit, or disconnection faults.

It is suitable for overhead transmission lines rated at 10 kV and above, particularly for locating permanent single-phase earth faults and line disconnection faults. The instrument helps identify the exact fault distance and determine broken pole locations, enabling maintenance personnel to inspect faults efficiently and reduce repair time.

The device must be operated only when the measured transmission line is de-energized. Its compact and portable design, AC/DC battery power supply, graphical and digital display, and user-friendly operation make it a convenient solution for overhead transmission line fault detection and maintenance.

Features

Key Features of the Cable Fault Locator

1. Multi-Functional Testing Capability

Supports both Low-Voltage Impulse and High-Voltage Flashover testing methods to detect various types of cable faults. It can directly identify flashover and high-resistance faults without requiring cable burn-through. When connected to an acoustic fault locator, it can help pinpoint the exact fault location.

2. High-Precision Measurement

Equipped with high-speed sampling technology and a 100 MHz A/D sampling rate, the instrument provides a measurement resolution of 1 metre and a detection blind zone of just 1 metre.

3. Intelligent Operation

Features an intelligent testing system that automatically processes and displays measurement results on the LCD screen, making fault detection faster and easier.

4. Waveform Storage and Review

Allows users to store and review test waveforms and measurement parameters. All saved information remains available even after the instrument is powered off.

5. Dual Waveform Display

Displays both the measured fault waveform and the normal cable waveform simultaneously, allowing easy comparison and more effective fault analysis.

6. Waveform Expansion Function

Provides adjustable waveform scaling, enabling users to expand specific waveform sections for detailed observation and more accurate fault identification.

7. Direct Fault Distance Display

Automatically displays the direct or relative distance between the fault location and the testing point, simplifying cable fault identification.

8. Adjustable Cable Wave Velocity

Allows users to adjust the wave propagation velocity according to the type and specifications of the cable being tested, improving measurement accuracy across different cable types.

Technical Parameter