Entry-Level TDR — High Value, No Compromise on Essentials. The XHGG501D delivers professional cable fault distance measurement, wave velocity testing, and resistance measurement at a price point accessible to smaller utility teams, electrical contractors, and maintenance departments building their first cable diagnostic capability.
The XHGG501D Cable Fault Tester is a microcontroller-controlled instrument designed for measuring and analyzing fault status and distance on low-voltage and medium-voltage power cables. Built around a 10-inch industrial LCD with touch operation, it implements the traveling wave method principle — injecting low-voltage pulses (35V, 0.2μs/2μs) into the cable under test and analyzing the reflected waveform for fault distance calculation. For high-resistance faults, it supports the high-voltage flashover method, capturing transient discharge reflections via external sampler. The instrument also performs cable wave velocity calibration and fault resistance measurement, covering the complete diagnostic workflow from fault classification to rough pre-location.
What the XHGG501D does not do is multi-pulse ARC testing — that capability is reserved for the higher-tier XHGG502 and XHGG502A models. For field teams whose fault profile consists primarily of low-resistance shorts, open circuits, and occasional high-resistance flashover faults, the XHGG501D provides everything needed without paying for capabilities that will rarely be used.
Why the XHGG501D — The Practical Choice| XHGG501D — Entry-Level TDR Platform | |
|---|---|
| Display | 10-inch industrial LCD, microcontroller touch control |
| Sampling Frequency | 100MHz |
| Minimum Resolution | 1.0m |
| Test Range | ≥16km |
| Test Blind Zone | ≤35m |
| Measurement Error | ≤±(0.5%×L+1m), L = cable length |
| Low Voltage Pulse | 35V; pulse widths: 0.2μs / 2μs |
| Test Methods | Low-voltage pulse (TDR) + High-voltage flashover |
| Measurement Functions | Fault distance, wave velocity, resistance |
| Sampling Mode | Fully automatic continuous |
| Battery | Built-in 10400mAH lithium; AC 110V~240V, 50Hz/60Hz |
| Protection | IP54 rugged chassis |
| Dimensions | 358×284×168mm |
| Weight | 4.6kg |
| Operating Conditions | -20℃~+65℃; ≤90% RH |
| Compliance | GB/T 18268.1; DL/T 849.1-2019; JJF1042-2020; CE; ISO |
| Cable Fault Tester (XHGG501D) | 1 unit | Single Q-Line Test Lead | 1 pc |
| Double Q-Line Test Lead | 1 pc | High-Voltage Sampler | 1 pc |
| Power Cable (AC) | 1 pc | Fuses | Multiple |
| Ground Wire | 1 pc (optional) | Rugged Transport Case | 1 pc |
| Use Case | Why XHGG501D |
|---|---|
| Small municipal utility teams | Covers LV/MV distribution cable faults at an accessible price |
| Electrical contractors expanding into diagnostics | Low barrier to entry — add cable fault locating to your service offering |
| Factory/in-plant maintenance departments | Self-contained with built-in battery — diagnose faults without waiting for external service providers |
| Training & education facilities | Straightforward TDR operation makes it ideal for teaching traveling wave method fundamentals |
| Backup/secondary instrument | Cost-effective second unit for teams already operating flagship models |
| XHGG501D (Entry) | XHGG501B (Mid) | XHGG502A (Flagship) | |
|---|---|---|---|
| Sampling | 100MHz | 100MHz | 400MHz |
| Resolution | 1.0m | 0.5m | 0.07m |
| Range | ≥16km | ≥30km | ≥120km |
| LV Pulse | 35V | 100Vpp | 300V |
| Multi-Pulse ARC | — | Single-shot | 8-pulse |
| Pulse Coupler | — | Optional | Included (DC 35kV) |
| Display | 10-inch | 5.7-inch | 10.1-inch |
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12-month free warranty against product quality defects. Lifetime maintenance and technical support.
Contact us for pricing or consultation on the XHGG501D Entry-Level TDR Cable Fault Locator.
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