Cable Fault Tester TDR Pre-Locator 120km 400MHz Sampling 10.1-Inch Touch Screen with Pulse Coupler 35kV | XHGG502A

The XHGG502A cable fault tester uses an industrial-grade 10.1-inch touchscreen all-in-one computer with a simple operating software interface, enabling human-machine interactive testing. It employs industrial-grade integrated circuits and devices, a built-in large-capacity lithium battery pack and an embedded system, providing a stable, reliable and easy-to-use fault locating solution.

This cable fault tester is a specialized instrument for measuring and analyzing the condition and fault distance of power cables. It combines modern electronic and computer technologies to achieve signal filtering, acquisition, waveform analysis and automatic fault distance calculation.

It is applicable to low-resistance, short-circuit, open-circuit and broken-circuit faults in power cables, high-frequency coaxial cables, street light cables and buried wires of various cross-sections and different media, covering low-voltage cables (6kV and below), medium and high-voltage cables (6kV-35kV) and high-voltage cables (66kV and above).

• 10.1-inch full-color TFT touchscreen display with 1024×600 resolution and 280 nits ultra-high brightness LED backlight, readable in direct sunlight;
• Embedded system offers secure, stable and simple display and operation methods;
• Functions of testing cable wave velocity, cable length and fault distance;
• Fully automatic continuous sampling with real-time waveform capture, timely and accurate;
• Automatic test range setting and automatic waveform analysis to display the test distance;
• Fully Chinese menu with two operation modes: touch and coded buttons, simple, fast and reliable;
• Equipped with low-voltage pulse method, high-voltage flashover method and multiple pulse method (8 times); smooth waveform display, very easy to interpret;
• When using the multiple pulse method, it is used in conjunction with a pulse coupler to display 8 sets of high and low voltage waveforms for easy comparison;
• Automatic distance testing, manual analysis and distance measurement;
• Powerful data processing capability for convenient management and archiving of waveform files, with massive test waveform storage;
• Built-in high-capacity lithium battery pack with fast charging support, enabling testing in environments without power supply;
• Uses a protective chassis with a minimum IP54 rating.

The XHGG502A adopts the traveling wave method testing principle. When an electromagnetic wave travels in a transmission line and encounters a point where the characteristic impedance changes, a reflected signal is generated; the polarity of the echo at the short-circuit point is opposite to that of the transmitted pulse, while the polarity of the echo at the open-circuit point is the same, allowing the operator to judge the fault nature and calculate the fault distance:

The instrument provides cable engineers with a comprehensive solution for power cable fault pre-location, helping minimize outage time through rapid and accurate fault distance measurement.