Product Overview
The XZH TEST Portable Cable Fault Tester Set is a fully integrated, field-ready diagnostic platform for underground power cable networks up to 35 kV. This professional-grade solution combines a 400 MHz TDR pre-locator (XHGG502A), a digital acoustic-magnetic pinpointer (XHDD503C), a high-voltage surge generator (XHHV535-4TSS) delivering 2048J discharge energy, and a multi-frequency cable path comprehensive tester into a coordinated platform covering every phase of cable fault management — from insulation testing and pre-location through route tracing, precise pinpointing, and post-repair DC withstand verification. Designed for utility crews, electrical contractors, and industrial maintenance teams, it delivers professional-grade accuracy and reliability in demanding field conditions.
System Configuration
| Product Name |
Model |
Key Capability |
| High Voltage Surge Generator |
XHHV535-4TS |
0–32 kV, 2048J discharge energy, DC/Single/Cycle output, 60mA burn current |
| TDR Cable Fault Locator |
XHGG502A |
1–400 MHz sampling, ≥120 km range, LV pulse + Impulse + ARC multiple pulse |
| Cable Fault Pinpointer |
XHDD503C |
Digital acoustic-magnetic sync, 0.1 m accuracy, IP65, TFT 5-inch display |
| Cable Path Comprehensive Tester |
507C |
4-frequency transmitter (815Hz–83kHz), 10W, ≥10 m detection depth |
System Components
1. XHHV535-4TS — High Voltage Surge Generator
2048J Discharge Energy • Three Voltage Ranges • Automatic Safety Protection
The core impulse generator of the fault location system, designed to create controlled high-voltage surges that induce flashover at cable fault points. Features three switchable voltage ranges (0–8 kV / 0–16 kV / 0–32 kV) with corresponding built-in capacitors (64 μF / 16 μF / 4 μF) delivering up to 2048J of discharge energy. Output modes include DC, single pulse, and automatic cycle with approximately 6-second impulse rate. Equipped with zero-start protection, over-voltage/over-current/overheating safety systems, and unique automatic internal capacitor discharge in stop state. Supports DC withstand voltage testing up to 35 kV with real-time voltage and current indication.
- Output Voltage: 0–8 kV / 0–16 kV / 0–32 kV (switchable)
- Discharge Energy: 2048J (64 μF / 16 μF / 4 μF)
- Output Modes: DC, Single, Cycle (auto ~6s, manual any)
- Impact Power: 2000VA
- Burn Current: Up to 60 mA @ 32 kV
- DC Withstand Test: 0–35 kV, 0–20A indication
- Protection: Over-voltage, over-current, overheating; auto discharge
- Protection Rating: IP54
- Dimensions: 534L × 444W × 805H mm
- Weight: ≤120 kg
2. XHGG502A — TDR Cable Fault Locator
400 MHz Sampling • 120 km Range • Multi-Pulse ARC Technology
Advanced Time Domain Reflectometer utilizing traveling wave reflection principles for rapid and accurate pre-location of all types of cable main insulation faults. Features 1–400 MHz adaptive sampling rate with 300V unipolar pulse output, achieving minimum 0.07 m resolution over a measurement scope exceeding 120 km. Supports low-voltage pulse, impulse current, impulse voltage, and ARC multiple pulse test methods for comprehensive fault coverage. Ten selectable measurement ranges from 100 m to 100 km with automatic impedance matching and continuous triggering ensure optimal signal acquisition for every cable type and length.
- Sampling Rate: 1–400 MHz
- Measurement Scope: ≥120 km
- Minimum Resolution: 0.07 m
- Measurement Error: ≤±(0.5% × L + 1 m)
- Pulse Amplitude: 300V (unipolar)
- Pulse Width: 0.15–10 μS (8 settings)
- Test Methods: LV pulse, Impulse current/voltage, ARC multiple pulse
- Signal Gain: 0–100%, adjustable
- Trigger: Automatic continuous
- Operating Temp: -25°C to +65°C
3. XHDD503C — Cable Fault Pinpointer
0.1 m Precision • IP65 Waterproof • Intelligent Acoustic-Magnetic Sync
Professional cable fault pinpointing instrument using intelligent acoustic-magnetic time difference method for precise fault point location. Features four operating modes (Standard, Enhanced, Noise Reduction, Custom) with fully digital metal intelligent probe and automatic mute functionality. The 5-inch TFT ultra-bright true color display (800×480) uses graphical language for intuitive operation. With 120 dB gain (fully automatic or manual), 100–1600 Hz frequency range, and 600 Ω military-grade noise-cancelling headphones, the pinpointer delivers confident fault identification even in the most challenging acoustic environments.
- Positioning Accuracy: 0.1 m (fixed point & path)
- Display: 5-inch TFT, 800×480 true color
- Operating Modes: Standard, Enhanced, Noise Reduction, Custom
- Gain: 120 dB, fully automatic + manual
- Frequency Range: 100–1600 Hz
- Dynamic Range: 0–112 dB (16 levels)
- Power Supply: 4×18650 lithium batteries, >8 hours
- Waterproof Grade: IP65
- Weight: Host 0.6 kg, Sensor 1.4 kg
4. XHGX507C — Cable Path Comprehensive Tester
4-Frequency Tracing • 10 m Depth Detection • Step Voltage & Cable ID
Multi-frequency transmitter-receiver system for underground cable route tracing, depth measurement, and cable identification. The transmitter outputs four selectable frequencies (815 Hz, 8 kHz, 33 kHz, 83 kHz) at up to 150 Vpp with 10W power across four output levels. Supports direct connection, coupling clamp (Φ150 mm), and induction coupling methods. The receiver operates in tracing, identification, and step voltage modes, displaying depth, current, and signal strength for confident cable route mapping. Includes 2.5 mm² 50 kV DC rated shielded HV output cable (10 m) and 3-column 16 mm² ground cable set.
- Output Frequencies: 815 Hz, 8 kHz, 33 kHz, 83 kHz
- Output Power: 10W, 4 levels (low/medium/high/full)
- Output Voltage: 150 Vpp
- Detection Depth: ≥10 m
- Receiver Modes: Tracing, Identification, Step voltage
- HV Output Cable: 2.5 mm², 50 kV DC rated, shielded, 10 m
- Ground Cable: 3-column, 16 mm² main, 10 m with spool
Field Testing Workflow
- Cable Insulation Test & Fault AssessmentPerform initial insulation resistance measurement to confirm fault presence and characterize fault type (high/low resistance, open/short circuit). Select appropriate voltage range on XHHV535-4TS.
- Fault Pre-Location (XHGG502A)Connect the 400 MHz TDR locator. For low-resistance faults use LV pulse method; for high-resistance/flashover faults deploy impulse current, impulse voltage, or ARC multiple pulse to measure approximate fault distance up to 120 km.
- Cable Route Tracing (507C)Trace the exact cable path using the multi-frequency transmitter-receiver system. Measure burial depth (up to 10 m), positively identify the target cable, and mark the route on the ground surface.
- Surge Impulse Generation (XHHV535-4TS)Apply periodic high-voltage surges (up to 32 kV, 2048J) in automatic cycle mode (~6s interval) to the faulty cable, creating detectable acoustic and electromagnetic signals at the fault point.
- Precise Pinpointing (XHDD503C)Walk the marked cable route with the acoustic-magnetic pinpointer. Monitor the time-difference display — the point where acoustic-magnetic time delay approaches zero is directly above the fault with 0.1 m accuracy.
- Cable Repair & Post-Repair VerificationExcavate precisely at the marked point, repair the cable, and use the XHHV535-4TS DC withstand test function (0–35 kV) to verify restoration and confirm operational integrity.
Applications
•Urban Distribution Networks: Fault location on buried medium and low voltage distribution cables up to 35 kV in city environments — 0.1 m pinpointing accuracy minimizes road excavation and traffic disruption.
•Industrial Plants & Commercial Facilities: Diagnostics on plant power distribution cables running under concrete floors, paved yards, and building foundations where access is constrained and precision is critical.
•Electrical Utilities & Service Contractors: Routine preventive maintenance, emergency fault response, and post-installation commissioning testing for underground cable networks of all sizes.
•Mining & Heavy Industry: Rugged, field-ready design (IP54/IP65 rated components) withstands harsh environments for reliable cable diagnostics in mining, oil and gas, and heavy manufacturing sites.
Frequently Asked Questions
Q1: What is included in this portable cable fault tester set?
The complete set includes four core instruments: XHHV535-4TS high voltage surge generator (0–32 kV, 2048J), XHGG502A TDR cable fault locator (400 MHz, 120 km range), XHDD503C cable fault pinpointer (0.1 m accuracy, IP65), and 507C cable path comprehensive tester (4-frequency transmitter + receiver). Also included are a 50 kV DC rated shielded high-voltage output cable (10 m), 3-column ground cable set (10 m), coupling clamp (Φ150 mm), and all necessary accessories packed in reinforced wooden cases.
Q2: How does the 3-level voltage switching on the surge generator work?
The XHHV535-4TS features three manually switchable voltage ranges — 0–8 kV (64 μF capacitor), 0–16 kV (16 μF), and 0–32 kV (4 μF) — each optimized for different cable lengths and fault types. Lower voltage/higher capacitance combinations provide more energy for long cable runs; higher voltage/lower capacitance settings deliver faster rise times for difficult high-resistance faults. The burn function delivers up to 60 mA at 32 kV for conditioning high-resistance faults prior to testing.
Q3: What makes the XHGG502A TDR locator different from basic fault locators?
The XHGG502A operates at up to 400 MHz sampling with adaptive rate selection (1–400 MHz) and supports four distinct test methods: low-voltage pulse (TDR), impulse current, impulse voltage, and ARC multiple pulse. The ARC multiple pulse mode captures multiple waveform sets per single HV impulse, eliminating delay-time adjustment and dramatically simplifying high-resistance and water-ingress fault analysis. With 300V pulse amplitude and 0.07 m minimum resolution across a 120 km scope, it delivers laboratory-grade precision in a field-ready instrument.
Q4: Can the system operate in wet or dusty field environments?
Yes. The XHDD503C pinpointer is rated IP65 waterproof with a fully digital metal intelligent probe and automatic mute functionality. The XHHV535-4TS surge generator carries IP54 protection with comprehensive safety interlocks including zero-start protection, over-voltage/over-current/overheating cutoffs, and automatic internal capacitor discharge when stopped. All components operate reliably from -25°C to +65°C with up to 90% relative humidity. The pinpointer's military-grade 600 Ω noise-cancelling headphones maintain operator focus even in high-noise environments.
Q5: What are the purchasing terms, delivery, and support?
Standard delivery time is 8–10 working days after order confirmation. Each component is individually packed in reinforced export-grade wooden cases with internal foam cushioning for damage-free international shipping. XZH TEST provides standard manufacturer warranty with optional extended coverage. Minimum order quantity is 1 unit with T/T payment terms. Annual supply capacity is 1,000 sets, ensuring availability for both individual evaluation purchases and large-scale utility deployment programs.
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
