The XZH TEST Portable Arc-Reflection Cable Fault Detection System is a fully integrated diagnostic platform for underground power cable networks. Combining a 400 MHz TDR pre-locator with patented multiple-pulse ARC reflection technology, a digital acoustic-magnetic pinpointer, a multi-frequency cable pipe locator, and a 2048J trolley-type high-voltage surge generator, this system delivers professional-grade fault detection from initial pre-location through centimeter-accurate pinpointing. Designed for utility field crews, electrical contractors, and industrial maintenance teams, the system supports cables up to 120 km in length with 0.07 m pre-location resolution and <0.2 m final pinpointing accuracy — enabling rapid, confident fault resolution with minimal excavation.
System Configuration| Product Name | Model | Qty | Key Capability |
|---|---|---|---|
| Cable Fault Pre-Locator | XHGG502A | 1 | TDR, ICE, ARM (multiple pulse) — 400 MHz, ≥120 km range, 10.1" touch display |
| Cable Fault Pinpointer | XHDD503C | 1 | Digital acoustic-magnetic synchronization, <0.2 m accuracy, IP65 |
| Cable Pipe Locator | XHGX507 | 1 | Path tracing, depth/current measurement, cable ID, step voltage (A-frame) |
| HV Surge Generator (Trolley) | XHHV535-4TSC | 1 | 0–32 kV, 2048 J, 3-speed capacitor bank, trolley cart design |
| Parameter | Specification |
|---|---|
| System Model | XHHV535-4TSC + XHGG502A + XHDD503C + XHGX507 |
| TDR Sampling Frequency | 1 MHz – 400 MHz |
| Pre-Location Range | ≥120 km |
| Pre-Location Resolution | 0.07 m (blind zone ≤10 m) |
| Pinpointing Accuracy | <0.2 m (acoustic-magnetic) |
| Path Detection Depth | Up to 10 m (max 15 km distance) |
| Surge Voltage | 0–32 kV (3-gear: 8/16/32 kV) |
| Discharge Energy | 0–2048 J (per voltage level) |
| Surge Generator Type | Trolley cart-mounted, 3-speed capacitor bank |
| Brand | XZH TEST |
| Origin | China |
| Certification | CE, ISO |
| Warranty | 12 Months |
The 8-pulse ARC Reflection Method (ARM) on the XHGG502A is specifically designed for high-resistance and flashover faults that produce weak or ambiguous reflections under standard TDR. Unlike secondary pulse methods that struggle with cosine oscillation interference, ARM captures 8 waveform sets per single HV impulse — guaranteeing multiple clean, interpretable fault echoes regardless of cable length, fault distance, or oscillation period. This is especially effective for water-ingress faults in paper-insulated cables and high-impedance sheath faults.
The XHHV535-4TSC trolley design combines the high energy output of a laboratory-grade surge generator (2048 J at 32 kV) with field mobility. The wheeled cart design (550×500×1000 mm, ≤130 kg) allows single-operator transport across job sites while housing a 3-speed switchable capacitor bank (4/16/64 μF) and providing three operating modes (single trigger, automatic cycle at 6–7 second intervals, and DC withstand voltage testing). The integrated automatic discharge, zero-start interlock, and IP54 enclosure exceed portable unit safety and capability.
Yes. Each component is designed for single-operator deployment with intuitive touch-screen interfaces (10.1-inch on the pre-locator, 5-inch on the pinpointer) and graphical guidance. The XHGX507 cable pipe locator provides bar-graph, arrow, and voice prompts — one person can perform the complete route tracing and depth measurement workflow. The XHHV535-4TSC surge generator is wheeled for easy single-person positioning. A two-person crew is recommended for safety during high-voltage operations per standard utility safety protocols.
XZH TEST provides comprehensive English-language user manuals, on-site commissioning, and operator training upon request with every system. The 12-month standard warranty covers manufacturing defects, with extended warranty and service contracts available. Remote technical support via email, video call, and phone is included. We supply all necessary accessories: high-voltage output cable (5 m), protective earthing cable (5 m), coupling clamps (Φ150 mm), A-frame for step-voltage detection, chargers, and connection leads.
Standard delivery is 5–8 working days after order confirmation. Each system component is individually packed in reinforced export-grade wooden cases with internal foam cushioning to ensure safe international transit. Minimum order quantity is 1 unit, with T/T payment terms. Annual supply capacity is 2,000 sets, ensuring availability for both individual purchases and large-scale procurement programs.
| Item | Detail |
|---|---|
| Packaging | Reinforced export-grade wooden cases with internal foam cushioning |
| Delivery Time | 5 – 8 working days |
| Supply Capacity | 2,000 sets per year |
| Minimum Order Quantity | 1 unit |
| Payment Terms | T/T |
| Warranty | 12 months |