Customizable Shielded High Voltage Cable Thumper — XHHV535-4TS
Model: XHHV535-4TS | 2048J Surge Energy
Designed for: Cable Fault Locating Contractors, Utility Maintenance Departments, OEM/ODM Equipment Distributors
Core Value: Fully customizable shielded cable thumper with three selectable voltage ranges delivering 2048 joules of surge energy. Integrated DC power source, energy storage capacitor, and discharge sphere in a single trolley-mounted unit — configurable to match your voltage, capacitor, and branding specifications.
Who Needs the XHHV535-4TS
The XHHV535-4TS is built for organizations that require flexibility in their cable fault locating equipment. Whether you are a contractor managing diverse voltage classes across your service territory, a utility standardizing its fleet with custom-configured surge generators, or a distributor seeking OEM-branded equipment for your market — the 4TS adapts to your requirements.
1Multi-Class Fault ContractorsThree voltage levels — 8kV, 16kV, 32kV — accessible from a single selector switch. Switch between distribution, industrial, and sub-transmission cable fault locating without equipment changes.
2Utility Fleet ManagersCustomize voltage ranges and capacitor values to match your network's specific voltage classes. One standardized instrument across your entire service fleet.
3OEM / ODM DistributorsFull customization available — branding, voltage configuration, packaging. Deliver your own branded cable thumper to your regional market without R&D investment.
4Industrial HV Maintenance TeamsFrom 6.6kV motor feeders to 33kV incomer circuits — one shielded thumper covers the full voltage range of your plant's cable infrastructure.
Shielded Design — Built for the Demanding Industrial Environment
The XHHV535-4TS features a fully shielded high-voltage compartment that isolates the DC power source, energy storage capacitor, and discharge sphere assembly within an enclosed metal housing. This design serves three critical purposes for field and industrial operations:
- Operator Safety: The shielded enclosure prevents accidental contact with energized components during operation. All high-voltage paths are contained within grounded metal barriers — exceeding IEC 61010-1 safety requirements for high-voltage test equipment
- Electromagnetic Compatibility: The shielded construction minimizes radiated EMI during surge discharge events, protecting sensitive co-located instruments such as TDR cable testers, acoustic-magnetic pinpointers, and communication equipment from electromagnetic interference
- Environmental Resilience: The enclosed design protects internal components from dust, moisture, and mechanical impact during transport and on-site deployment — essential for field teams operating in substations, trenches, and outdoor cable vaults
Three Voltage Ranges — Performance That Adapts to Your Cable Network
| Voltage Range | Capacitor Configuration | Typical Application |
|---|
| 0–8 kV | 64μF | LV/MV distribution cables (6kV–10kV), urban feeder faults, building service entrances |
| 0–16 kV | 16μF | Industrial plant feeders (11kV–20kV), renewable energy collector cables, medium-distance circuits |
| 0–32 kV | 4μF | Sub-transmission cables (33kV–35kV), long-distance industrial incomers, wind farm collector arrays |
2048 Joules at Your Disposal: At 32kV with the 4μF capacitor, the XHHV535-4TS delivers 2048J of surge energy — sufficient acoustic output for reliable pinpointing even on high-resistance faults and long cable runs where weaker surge generators fail to produce detectable discharge signatures.
Technical Specifications
| Parameter | Specification |
|---|
| Selectable Output Voltages | 0–8 kV / 0–16 kV / 0–32 kV (three ranges) |
| Internal Capacitor Bank | 64μF/8kV · 16μF/16kV · 4μF/32kV (auto-switched with voltage range) |
| Maximum Surge Energy | 2048 J (at 32kV / 4μF) |
| Surge Power Rating | 2 kVA |
| Surge Timing | Auto-surge ~4 second interval · Manual discharge mode available |
| HV Measurement Accuracy | 1.5-grade voltage divider, real-time kV and mA display |
| Discharge Modes | Automatic timed discharge + Manual push-button discharge |
| Safety Systems | Zero-position start interlock, potentiometer return-to-zero, auto capacitor discharge on stop, overcurrent/overvoltage protection |
| Additional Functions | DC withstand voltage testing, integrated waveform sampling module for TDR fault pre-location |
| Dimensions | 534L * 444W * 805H mm (trolley-mounted) |
| Weight | 120 kg (trolley with integrated castors and transport handle) |
| Power Supply | AC 220V ±10%, 50Hz ±2Hz |
| Operating Temperature | -20°C to +50°C |
| Brand / Origin | XZH TEST / China |
| Certification | CE, ISO |
Customization Capabilities — Your Brand, Your Specifications
The XHHV535-4TS is engineered as a customizable platform. XZH TEST supports OEM and ODM orders with the following configurability:
| Customization Area | Available Options |
|---|
| Voltage Ranges | Default 8/16/32kV — can be reconfigured to match your regional cable voltage standards (e.g., 6/12/24kV, 10/20/35kV) |
| Capacitor Values | Custom capacitance-to-voltage matching for specific surge energy targets |
| Branding | Custom front-panel logo, equipment labeling, model numbering per client requirements |
| Packaging | Custom-branded wooden crate, multilingual user manual, logo-printed accessories case |
| Accessories | Custom cable lengths, connector types, discharge rod configurations |
| Color | Default black — custom RAL-matched enclosure colors available for volume orders |
Interested in an OEM or customized configuration? Contact our sales team with your specifications for a tailored quotation.
Integrated System Architecture
Unlike modular surge generator setups that require separate DC supply, capacitor bank, and discharge sphere modules interconnected by high-voltage cables on-site, the XHHV535-4TS integrates all three subsystems into one shielded enclosure:
- DC High-Voltage Power Source: Built-in rectifier and step-up transformer, providing continuously adjustable DC output within each voltage range
- Energy Storage Capacitor Bank: Three internal capacitors (4/16/64μF) automatically selected by the voltage range switch — no external capacitor connections or manual reconfiguration
- Discharge Sphere Assembly: Precision-machined tungsten-alloy discharge spheres with adjustable gap, enclosed within the shielded compartment for controlled, repeatable surge characteristics
How the XHHV535-4TS Integrates into Your Fault Location Workflow
- Pre-Locate with TDR: Use a TDR cable fault locator (such as XZH TEST 502 series) to estimate the fault distance. The 4TS's internal waveform sampling module provides a clean trigger signal for TDR acquisition
- Select Voltage Range: Choose 8kV, 16kV, or 32kV based on the cable's voltage rating — rotation of the front-panel selector instantly reconfigures the internal capacitor bank
- Zero-Check and Start: Verify zero-position indicator is illuminated, press Start, then increase voltage to the desired surge level
- Pinpoint with Acoustic-Magnetic Method: The 4TS delivers controlled 2048J surge discharges at ~4-second intervals. Use an acoustic-magnetic pinpointer (such as XZH TEST XHDD503) at the estimated fault location to capture discharge sound and electromagnetic signals
- Mark and Excavate: Once the fault point is acoustically confirmed, mark the surface, de-energize the 4TS, and proceed with targeted excavation
Safety Precautions
- Only qualified high-voltage technicians may operate this equipment — 32kV is a lethal voltage level
- Confirm zero-position indicator is illuminated (yellow) before pressing Start — the zero-start interlock prevents energization from a non-zero setting
- Never change the voltage range selector while HV output is active — de-energize, discharge, and verify zero before switching
- Verify voltmeter reads zero and automatic discharge has completed before disconnecting output cables or approaching the test area
- Always connect the instrument ground terminal to the station earth grid before energizing
- Press the emergency Stop button immediately if abnormal meter readings, sounds, or odors are observed
▎Frequently Asked Questions
Q: How does a high voltage surge generator work in cable fault detection?
The surge generator discharges a high-energy pulse into the faulty cable, creating a controlled high-voltage arc at the fault point. This arc produces both an acoustic signal (loud thumping sound detectable by ground microphones) and an electromagnetic pulse (detectable by an inductive receiver). By combining acoustic and electromagnetic signal arrival times, operators can pinpoint the exact fault location with precision—a technique known as acoustic-magnetic synchronization.
Q: Which voltage range should I select for different cable types?
Voltage selection follows the cable's rated operating voltage as a general guideline. For low-voltage cables (up to 1kV), use the 8kV or 12kV range. For medium-voltage distribution cables (6-15kV), the 16kV range is appropriate. For high-voltage transmission cables (35kV and above), use the 32kV range. Always consult the cable manufacturer's maximum test voltage specifications and ensure all safety clearances are maintained during high-voltage operation.
Q: What safety precautions must be observed during surge generator operation?
High voltage surge generator testing requires strict safety protocols. Always verify the cable is fully de-energized and isolated from all power sources before connection. Establish a minimum 5-meter safety perimeter around the test zone with warning signs. All personnel must wear appropriate PPE including arc-rated clothing, HV insulating gloves, and dielectric overshoes. The integrated safety features—automatic discharge upon power-off, emergency stop, and zero-voltage interlock—provide additional layers of protection but should never replace proper safety procedures.
Q: What is the advantage of multiple energy levels (Joules) on this unit?
Different energy levels serve different diagnostic purposes. Low energy settings (e.g., 864J–1024J) are ideal for initial fault confirmation and locating high-resistance faults where excessive energy could worsen cable damage. Medium energy (1225J–2048J) provides optimal acoustic signal strength for most routine fault pinpointing. High energy (2450J+) is reserved for very long cables, deep burial scenarios, or high-impedance faults that require stronger arc generation to produce a detectable acoustic signature. The three-level selection allows operators to match energy output to field conditions.
Q: What warranty and support is included with this surge generator?
12-month standard warranty against manufacturing defects with lifetime technical support. CE and ISO 9001:2015 certified. Each unit includes the surge generator, HV output cable, ground cable, discharge rod, user manual, and a protective transport solution. On-site installation, commissioning, and operator safety training are available upon request. Spare parts including discharge gaps, capacitors, and HV diodes are stocked for rapid replacement.
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