XHGG502 Cable Fault Pre Locator
The XHGG502 is a portable, industrial-grade cable fault pre locator that measures and analyzes power cable status and fault distance using the traveling wave (TDR) method. Built around a 12.1-inch industrial-grade touchscreen computer and a dedicated cable management software, it combines the low-voltage pulse method, the high-voltage flashover method and the advanced multiple pulse (eight-pulse) method in one instrument. It pre-locates low-resistance, short-circuit, open-circuit and disconnection faults, as well as high-resistance leakage and flashover faults, on XLPE, PVC, rubber-sheathed and oil-impregnated paper cables of 35kV and below, together with high-frequency coaxial cables, local telephone cables, street-light cables and buried wires.
Applications & Target Audience
Purpose-built for professional cable fault pre-location service providers, high-voltage cable commissioning and acceptance-test teams of power engineering contractors, and cable manufacturer after-sales groups who need reliable fault distance pre-location and automatic test reporting on 35kV and below XLPE distribution cables.
Key Specifications
| Parameter |
Specification |
| Display |
12.1-inch industrial-grade touch all-in-one computer |
| Operating System |
Embedded industrial computer with dedicated cable management software |
| Test Methods |
Low-voltage pulse method, high-voltage flashover method, multiple pulse (eight-pulse) method |
| Sampling Frequency |
400MHz |
| Low Voltage Pulse Amplitude |
400V |
| Low Voltage Pulse Width |
0.25 µs / 2 µs / 4 µs |
| Minimum Resolution |
0.1m |
| Ranging Range |
≥68km |
| Test Blind Spot |
≤10m |
| Measurement Error |
≤±(0.5%×L+1m), L is the cable length |
| Test Cable Length Ranges |
<1km (short distance) / <3km (medium distance) / >3km (long distance) |
| Pulse Coupler Withstand Voltage |
DC 35kV |
| Power Supply |
Charging AC 110–240V, 50/60Hz; built-in 10400mAh lithium battery |
| Working Conditions |
-20°C to +65°C, relative humidity 90%, 750±30mmHg |
Advanced Features
12.1-inch industrial-grade computer control with touch operation
Embedded operating system with a powerful cable management system and automatic report generation
Measures cable wave velocity and fault distance
Fully automatic continuous sampling that never misses a discharge waveform
Adopts the latest embedded industrial computer and the world’s most advanced eight-pulse (multiple pulse) test technology, together with the impulse high-voltage flashover method and the low-voltage pulse method
Any high-resistance fault presents the simplest waveform characteristics similar to a low-voltage pulse short-circuit fault, making it very easy to interpret
The reflected signal sent by the pulse coupler is automatically displayed, and the full-length waveform of the cable open circuit is shown at the same time
Mass waveform storage: field waveforms can be stored in a prescribed order and recalled at any time, with handwriting annotation of test personnel, locations and fault characteristics
Ultra-high brightness large LCD readable in direct sunlight, with powerful data processing and a friendly interface
Standard USB interface for data export, and supports waveform printing
Extremely safe high-voltage protection measures so the tester will not crash or be damaged in an impulse high-voltage environment
Built-in large-capacity lithium battery for open-circuit and low-resistance short-circuit testing in a power-free environment
Standard Configuration
Each XHGG502 ships as a complete pre-location kit, so a field team can switch between the low-voltage pulse, high-voltage flashover and multiple pulse methods without sourcing extra parts.
| Item |
Qty |
Function |
| Cable Fault Tester (Host) |
1 |
Tests and analyzes cables using the low-voltage pulse, high-voltage flashover and multiple pulse methods |
| Coupler |
1 |
Used in the multiple pulse (eight-pulse) method |
| Stylus |
1 |
Touch operation on the integrated screen for precise selection |
| Single Q Line (Output Line, 1.5m) |
1 |
Connects the host to the cable under test in the low-voltage pulse method |
| Double Q Line (Input Line, 2m) |
1 |
Connects the host to the sampler in the high-voltage flashover method |
| Sampler |
1 |
Receives the reflected high-voltage signal in the flashover method |
| Power Cord (1.8m) |
1 |
Charging cable for the host |
| Coupler High-Voltage Line A (2m) |
1 |
Connects the coupler and the cable under test in the multiple pulse method |
| Coupler High-Voltage Line B (2m) |
1 |
Connects the coupler and the high-voltage pulse signal source |
| Ground Wire (2.5m) |
1 |
Coupler grounding wire |
FAQ
Q1: What cable faults can the XHGG502 pre-locate?
It pre-locates low-resistance, short-circuit, open-circuit and disconnection faults, as well as high-resistance leakage and flashover faults, on XLPE, PVC, rubber-sheathed and oil-impregnated paper cables of 35kV and below, plus high-frequency coaxial cables, local telephone cables, street-light cables and buried wires.
Q2: How far and how accurately can it measure?
The ranging range is (up to) 68km with a minimum resolution of 0.1m, a test blind spot of 10m or less, and a measurement error of no more than (0.5% x L + 1m), where L is the cable length; three length ranges are provided (<1km, <3km, >3km).
Q3: Which test methods does it support?
It supports the low-voltage pulse method, the high-voltage flashover method and the multiple pulse (eight-pulse) method, all selectable from the touchscreen interface.
Q4: Can it work without mains power on site?
Yes. A built-in 10400mAh lithium battery supports field testing, and the battery charges from AC 110-240V. Low-voltage pulse testing may run on AC 220V, but high-voltage flashover and multiple pulse sampling must not be performed while the instrument is charging.
Q5: How are test waveforms stored and exported?
Sampling runs at 400MHz with fully automatic continuous capture; waveforms can be stored in a prescribed order with handwritten annotations, recalled at any time, and exported or printed through the standard USB interface.
Note: It is strictly forbidden to connect AC 220V power when running high-voltage flashover or multiple pulse sampling tests. Coupler high-voltage lines can only be plugged and unplugged, and must never be rotated or twisted.
Your message must be between 20-3,000 characters!
english
français
Deutsch
Italiano
Русский
Español
português
Nederlandse
ελληνικά
日本語
한국
العربية
हिन्दी
Türkçe
indonesia
tiếng Việt
ไทย
বাংলা
فارسی
polski
Overall Rating
Rating Snapshot
The following is the distribution of all ratingsAll Reviews