TDR Cable Fault Pre-Locator 60km with Low Voltage Pulse and High Voltage Flashover Testing XHGG501B

The XHGG501B Cable Fault Pre-Locator is a comprehensive TDR (Time Domain Reflectometer) based diagnostic instrument designed for measuring low-resistance, short-circuit, open-circuit, high-resistance leakage and high-resistance flashover faults on power cables, high-frequency coaxial cables, telephone cables, street light cables and buried wires across various cross-sections and media types. It combines fault distance measurement, fault location, propagation speed testing, cable path tracing and burial depth detection in a single integrated platform.

Equipped with a 5.7-inch industrial LCD and a built-in micro printer, the XHGG501B captures and prints test waveforms and analysis reports on-site without requiring a PC. Its 100MHz sampling rate and 0.5m minimum resolution ensure precise fault pre-location, while support for low-voltage pulse, high-voltage flashover, and acoustic-magnetic synchronization methods makes it adaptable to virtually all cable fault types encountered in field operations.

• Multiple Test Methods: Low-voltage pulse method, high-voltage flashover method, acoustic-magnetic synchronization, valley method, peak method, and electromagnetic induction — covering the full cable fault diagnosis workflow.
• 60km Maximum Test Range: Detects faults up to 60km on power and communication cables with auto-continuous sampling that never misses a discharge waveform.
• 100MHz Sampling, 0.5m Resolution: High-speed A/D conversion captures transient fault waveforms with high fidelity for accurate distance calculation.
• Built-in Micro Printer: Print test waveforms, analysis data and fault reports directly from the instrument — no external computer needed on site.
• 35kV Impulse High Voltage Support: Works with high-voltage impulse generators delivering 0–35kV to break down high-resistance faults. Impulse power up to 400W.
• Low-Voltage Pulse Output: 100Vpp pulse amplitude with 0.1μs and 2μs selectable pulse widths for TDR reflection analysis on low-resistance and open-circuit faults.
• SCM Operating Platform: Push-button operation with built-in 24V/7Ah DC power supply providing up to 6 hours of continuous field operation.
• RS232 Communication Interface: Data output to PC for advanced waveform analysis, report generation and archival storage.
• Fault Resistance Measurement: Integrated resistance value testing to characterize fault severity before committing to excavation.
• Inductive Sampling: No grounding wire required on site — simplifies setup and improves safety in urban or congested work environments.