Cable Fault Pre-Locator | 10.1-Inch Touch Screen TDR Cable Fault Tester | XHGG502A
Product Description
The XHGG502A cable fault tester adopts an industrial-grade 10.1-inch touch-integrated computer with a simple operating software interface, enabling human-machine interactive testing. It uses industrial-grade integrated circuit design and an embedded operating system to achieve signal filtering, acquisition, data processing, graphic display and graphic analysis, completing cable speed measurement, cable length test, cable fault distance test and resistance test.
This cable fault tester is a special instrument for measuring and analyzing the condition and fault distance of power cables. It is suitable for low-resistance, short-circuit, open-circuit and disconnection faults of power cables, high-frequency coaxial cables, street light cables and buried wires of various materials, cross-sections and media, as well as high-resistance leakage and flashover high-resistance faults.
Work mode: TDR (low voltage pulse), ICE (Impulse current), ARM (Arc reflection method) with coupler configured.
Applications & Target Audience: Engineered for high-voltage transmission cable operation and maintenance departments, thermal and hydropower plant electrical maintenance teams, new energy wind and solar farm O&M teams, and large industrial park electrical departments that pre-locate low-resistance, open-circuit, disconnection, high-resistance leakage and flashover faults on cables up to 120km.
Product Features
- Industrial-grade 10.1-inch full-color TFT touch screen with a simple and stable embedded system;
- Functions of cable wave speed test, cable length test and fault distance test;
- Fully automatic continuous sampling, real-time waveform capture, timely and accurate;
- Automatic test range setting and automatic waveform analysis to display the test distance;
- Two operation modes of touch and coded buttons, simple, fast and reliable;
- Equipped with low-voltage pulse method, high-voltage flashover method and multiple pulse method (8 times) testing technologies, smooth waveform display and easy interpretation;
- When using the multiple pulse method, it is used with the pulse coupler to display 8 groups of high and low voltage waveforms for easy comparison;
- Massive test waveform storage: waveforms tested on site can be stored and retrieved for analysis;
- Ultra-high brightness LED backlight of 280 nits with 1024*600 resolution, suitable for direct sunlight environments;
- Built-in high-capacity lithium battery pack with fast charging, enabling testing in environments without power;
- Adopts a protective chassis not lower than IP54.
Technical Specification
| Parameter |
Specification |
| Sampling frequency |
1MHz~400MHz |
| Low voltage pulse amplitude |
300V±15% |
| Ranging range |
≥120km |
| Test range |
100m/300m/500m/1km/3km/5km/10km/25km/50km/100km |
| Pulse width |
0.1uS/0.30uS/0.60uS/1.20uS/2.4uS/5.0uS/7.5uS/10uS |
| Minimum resolution |
0.07m |
| Test blind area |
≤10m |
| Measurement error |
≤±(0.5%×L+1m), L is the cable length |
| Power supply mode |
Charging AC110V~240V, 50Hz/60Hz; built-in 11.1V lithium battery pack, charging time about 2 hours, working time over 5 hours |
| Pulse coupler withstand voltage |
DC 35kV |
| Volume and weight |
Cable fault tester L358mm×W284mm×H168mm - 5kg; pulse coupler L430mm×W380mm×H220mm - 10kg |
| Working conditions |
Temperature -20℃~+65℃, relative humidity 90%, atmospheric pressure 750±30mmHg |
Application Scenarios
| Application Scenario |
Typical Applications |
| High-Voltage Transmission Cable O&M |
Pre-locating flashover and high-resistance leakage faults on 66kV and above long-distance transmission cables with the multi-pulse method |
| Thermal & Hydropower Plants |
Testing plant auxiliary and outgoing power cables to minimize forced outage time |
| Wind & Solar Farms |
Locating faults in long feeder and collector cables across wide, hard-to-reach terrains |
| Large Industrial Parks |
Testing medium-voltage distribution cables feeding factory zones without interrupting production lines |
Packing List
| Item |
Quantity |
| Cable fault tester |
1 unit |
| Pulse coupler (host) |
1 unit |
| Power cord |
1 piece |
| Single Q line (output line) |
1 piece |
| Double Q line (input line) |
1 piece |
| Sampling box |
1 piece |
| Transparent grounding wire |
1 piece |
| Coupler high voltage line A / B |
1 piece each |
| USB communication cable |
1 piece |
FAQ
Q1: Who is this cable fault pre-locator designed for?
It is designed for high-voltage transmission cable O&M departments, thermal and hydropower plant electrical maintenance teams, new energy wind and solar farm O&M teams, and large industrial park electrical departments that test power cable faults on site.
Q2: What cable fault types can the XHGG502A test?
It is suitable for low-resistance, short-circuit, open-circuit and disconnection faults of power cables, high-frequency coaxial cables, street light cables and buried wires, as well as high-resistance leakage and flashover high-resistance faults, using the low-voltage pulse method, high-voltage flashover method and the multiple pulse method (8 times).
Q3: What are the key technical specifications of the XHGG502A?
It features 1MHz~400MHz sampling frequency, 300V±15% low-voltage pulse amplitude, ≥120km ranging range, 0.07m minimum resolution, ≤10m test blind area, a 10.1-inch full-color TFT touch screen, and a measurement error of ≤±(0.5%×L+1m).
Q4: What is the pulse coupler used for and what is its rating?
The pulse coupler is used for the multiple pulse method (8 times), guiding the instantaneous high-voltage pulses from the high-voltage unit to the faulty phase and displaying 8 groups of high and low voltage waveforms for comparison. Its withstand voltage is DC 35kV, and the instrument set meets the standard requirements of DL/T 849.1 and JJF1042.
Q5: What is included in the delivery and what are the trade terms?
The delivery includes the cable fault tester host, pulse coupler, power cord, single Q line, double Q line, sampling box, transparent grounding wire, coupler high voltage lines A and B, and USB communication cable. The instrument is covered by a one-year warranty with lifetime maintenance and technical services.
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