Cable Fault Pre-Locator

The Cable Fault Pre-Locator is an advanced testing instrument designed to identify, measure, and analyze power cable conditions and fault distances. It features an industrial-grade 12.1-inch touchscreen all-in-one computer with user-friendly operating software, providing convenient and efficient human-machine interaction.

Built with industrial-grade integrated circuits and components, the instrument incorporates a high-capacity lithium-ion battery to ensure stable, reliable, and convenient operation.

Combining modern electronic and computer technologies, the cable fault pre-locator performs signal filtering, data acquisition, processing, graphical display, and analysis. It supports cable velocity measurement, cable length testing, and accurate pre-location of cable faults.

The instrument is suitable for detecting and locating various cable faults, including low-resistance faults, short circuits, open circuits, disconnections, high-resistance leakage, and high-resistance flashover faults. It can be used with power cables, high-frequency coaxial cables, street lighting cables, and underground cables of different materials, cross-sections, and insulation types.

Overall, it provides an efficient and reliable solution for cable fault pre-location, helping electrical maintenance professionals identify fault positions and reduce troubleshooting time.

Technical Specification

• Sampling frequency:400MHz;

• Low voltage pulse amplitude:400V •Minimum resolution：0. 1m;

•Low voltage pulse width：0.25uS/2uS/4uS; •Test blind spot：≤10m;
•Ranging range： ≥68km;

•Measurement error：≤±(0.5%×L+1m),L is the cable length;

• There are three types of test cable lengths: <1km (short distance); <3km (medium distance); >3km (longdistance),

• Pulse coupler withstand voltage: DC 35kV;

• Power supply mode: charging AC110V～240V, 50Hz/60Hz; Built-in 10400mAH lithium battery power supply;

• Working conditions: temperature -20℃ ~ +65℃, relative humidity 90%, atmospheric pressure 750±30mmHg;

• Volume and weight: Cable fault pre locator 430×380×220mm-10kg; Pulse coupler 430×380×220mm-10kg.

Feature

Key Features of Cable Fault Pre-Locator

1. Industrial-Grade Touchscreen Operation

Equipped with a 12.1-inch industrial-grade computer and touchscreen interface, the instrument offers convenient, intuitive, and efficient operation.

2. User-Friendly Operating System

Runs on a Windows XP-based operating system with a simple software interface, full Chinese-language menus, and clearly defined on-screen touch controls for easy operation.

3. Cable Wave Velocity and Fault Distance Measurement

Supports cable wave velocity measurement and fault distance calculation, helping users identify the approximate location of cable faults quickly and accurately.

4. Automatic Sampling and Waveform Capture

Features fully automatic continuous sampling to capture reflected signals and fault waveforms promptly, ensuring reliable and accurate measurement results.

5. Advanced Multiple-Pulse Testing Technology

Incorporates advanced embedded industrial computer technology and the eight-pulse method (multiple-pulse method). It also supports high-voltage flashover testing and the low-voltage pulse method to identify different types of cable faults.

6. Simplified High-Resistance Fault Analysis

Displays high-resistance fault waveforms with characteristics similar to low-voltage pulse short-circuit waveforms, making waveform interpretation easier and helping technicians identify fault locations efficiently.

7. High-Brightness LCD Display

Features an ultra-bright, large LCD screen that provides clear waveform visibility, even in direct sunlight. Its powerful data-processing capabilities and user-friendly display interface support efficient field testing.

8. Automatic Waveform Display and Fault Location

Automatically displays reflected signals received through the pulse coupler, along with the complete cable open-circuit waveform. High-resistance fault characteristics are presented in a simplified waveform format, helping users identify fault distances more conveniently.

9. Large-Capacity Waveform Storage

Supports storage of a large number of test waveforms. Field measurement results can be saved in an organized sequence and retrieved for future observation, comparison, and analysis.

10. Standard USB Connectivity

Equipped with a standard USB interface for convenient data connectivity and transfer.

11. Simple Operation and Reliable Performance

Designed with an intuitive operating interface and efficient testing functions, the instrument offers high reliability, ease of use, and excellent cost-effectiveness for cable fault detection applications.

12. Built-In Rechargeable Lithium Battery

Features an integrated polymer lithium battery that allows cable testing without an external power supply. It supports open-circuit and low-resistance short-circuit fault testing in locations where mains power is unavailable.

ACCESSORY

Cable fault tester: a unit that tests and analyzes cables by using alow-voltage pulse

method, high-voltage flashover method and multiple pulse method; •Coupler: used in the multiplepulse method;

•Stylus: easy to operate and touch the integrated screen, precise positioning and selection of the display area;

•Output line (1.5m single Q line): connect the cable fault tester and the tested cable in the low-voltage pulse test method;

•Input line (2m double Q line): connect the cable fault tester and the sampler in the high-voltage flashover test method;

•Sampler: In the high-voltage flashover method, it receives the signal reflected from the high-voltage signal to the sampling ground;
•Power cord(1.8m): cable fault tester charging cable;

•Coupler high-voltage line A (2m): Connects the coupler and the cable under test in the multiple pulse method. It can only be plugged in and out during wiring, and cannot be rotated or twisted;

• Coupler high-voltage line B (2m): Connects the coupler and the high-voltage pulse signal source in the multiple pulse method. It can only be plugged in and out during wiring, and cannot be rotated or twisted;

•Ground wire (2.5m): Coupler ground wire;