XHGG502 Cable Fault Pre-locator | Cable Fault Locator
XHGG502 is a portable cable fault pre-locator (cable fault tester) for measuring and analyzing the condition and fault distance of power cables. Built around an industrial-grade 10.1 inch touchscreen all-in-one computer, it combines signal filtering, acquisition, data processing and graphical waveform analysis to complete cable wave velocity measurement, cable length testing and cable fault distance testing, and it is supplied with a pulse coupler for the multiple pulse method.
Designed For: Cable manufacturers’ factory inspection and type-test laboratories, cable commissioning and handover acceptance test teams, power cable research and quality control engineers, mining, oil, gas and heavy industry plant power cable maintenance crews, and electrical testing service providers that must verify cable length, wave velocity and pre-fault distance before repair.
Key Specifications
| Parameter |
Specification |
| Model |
XHGG502 |
| Product Type |
Cable fault pre-locator / cable fault tester (with pulse coupler) |
| Test Methods |
Low-voltage pulse method, high-voltage flashover method, multiple pulse method (8 pulses, with coupler) |
| Display |
10.1 inch full-color TFT touchscreen (1024x600, 280 nits) |
| Sampling Frequency |
1MHz to 400MHz |
| Distance Measurement Range |
≥120 km |
| Test Range |
100m / 300m / 500m / 1km / 3km / 5km / 10km / 25km / 50km / 100km |
| Minimum Resolution |
0.07 m |
| Test Blind Zone |
≤10 m |
| Measurement Error |
≤ ± (0.5% × L + 1 m), L = cable length |
| Low-voltage Pulse Amplitude |
300V ±15% |
| Pulse Width |
0.1uS / 0.30uS / 0.60uS / 1.20uS / 2.4uS / 5.0uS / 7.5uS / 10uS |
| Pulse Coupler Withstand Voltage |
DC 35kV |
| Power Supply |
Rechargeable AC110V~240V, 50Hz/60Hz; built-in 11.1V lithium battery |
| Charging / Working Time |
Charge about 2 hours, work over 5 hours |
| Waveform Storage |
Over 8000 low-voltage pulse & high-voltage flashover records, over 250 multiple pulse records |
| Operating Conditions |
Temperature -20℃~+65℃, relative humidity 90% |
| Protection Class |
Chassis with minimum IP54 rating |
Core Features
Tests low-resistance, short-circuit, open-circuit and broken-circuit faults as well as high-resistance leakage and flashover faults.
Applicable to power cables, high-frequency coaxial cables, street light cables and buried wires of various cross-sections.
10.1 inch full-color TFT touchscreen with touch and coded knob operation for simple, fast and reliable use.
Embedded system with fully automatic continuous sampling and real-time waveform capture.
Automatic test range setting and automatic waveform analysis to display the test distance.
Low-voltage pulse, high-voltage flashover and multiple pulse (8 times) methods with smooth waveform display.
Multiple pulse method works with the pulse coupler to display 8 sets of high and low voltage waveforms for easy comparison.
Tests cable wave velocity, cable length and fault distance with powerful data processing and archiving.
Stores over 8000 low-voltage pulse and high-voltage flashover records and over 250 multiple pulse records, exportable via USB.
LED backlight brightness reaches 280 nits with 1024x600 resolution, suitable for environments with direct sunlight.
Built-in high-capacity lithium battery pack supports fast charging and testing without power.
Protective chassis with a minimum IP54 rating.
Instrument Composition & On-Site Workflow
Complete Kit with Pulse Coupler
The set includes the cable fault tester, the pulse coupler, a single Q output line, a double Q input line, a sampler, coupler high-voltage lines A and B, a transparent grounding wire, the power cord and a USB communication cable, so the low-voltage pulse, high-voltage flashover and multiple pulse methods can all be performed on site.
High-Voltage Flashover with Sampler
In the high-voltage flashover method the sampler receives the signal reflected from the high-voltage signal onto the sampling ground and feeds it to the tester, so leakage and flashover high-resistance faults can be located as well.
Multiple Pulse Method with Coupler
When used with the pulse coupler, the multiple pulse method displays 8 sets of high and low voltage waveforms for easy comparison, greatly simplifying echo identification on site. The pulse coupler withstands up to DC 35kV.
USB Data Management
The tester stores over 8000 low-voltage pulse and high-voltage flashover records and over 250 multiple pulse records, all of which can be imported into the computer software via USB for archiving and analysis.
FAQ
Q1: Who is the XHGG502 cable fault pre-locator designed for?
It is designed for cable manufacturers' factory inspection and type-test laboratories, cable commissioning and handover acceptance test teams, power cable research and quality control engineers, mining, oil, gas and heavy industry plant power cable maintenance crews, and electrical testing service providers that must verify cable length, wave velocity and pre-fault distance before repair.
Q2: What kinds of cable faults can it locate?
It locates low-resistance, short-circuit, open-circuit and broken-circuit faults as well as high-resistance leakage and flashover faults in power cables, high-frequency coaxial cables, street light cables and buried wires of various cross-sections and media.
Q3: Which test methods and sampling frequency are available?
It provides the low-voltage pulse method, the high-voltage flashover method and the multiple pulse (8 pulse) method, with a sampling frequency from 1MHz to 400MHz and automatic waveform analysis.
Q4: What is included in the kit and how big is the instrument?
The kit includes the cable fault tester, the pulse coupler, a single Q output line, a double Q input line, a sampler, coupler high-voltage lines A and B, a transparent grounding wire, the power cord and a USB communication cable. The tester measures L358×W284×H168mm and weighs about 5kg, while the pulse coupler is about 10kg.
Q5: How much waveform data can it store and how is it protected?
It stores over 8000 low-voltage pulse and high-voltage flashover waveform records and over 250 multiple pulse records, which can be imported into computer software via USB. The protective chassis has a minimum IP54 rating.
All English version available, please contact us for more photos.
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