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HF-CH-218 High Voltage Surge Generator for Cable Fault Location
This portable surge generator is engineered for accurate cable fault location. It delivers adjustable surge voltage with complete safety protection systems, stable surge output, lightweight design, ideal for on-site breakdown tests of underground power cables.
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The HF-CH-218 integrated high voltage generator is a dedicated high voltage source for cable fault testing. Matched with cable fault ranging hosts and cable fault pinpointing instruments, it is used for cable fault pre-location and precise pinpointing, achieving positioning accuracy within 10 cm. Adopting a pull rod integrated structure, it requires no complicated on-site wiring and can be directly connected to faulty cables for detection.
Features & Main Functions
- It is an integrated capacitive high voltage generator with a pull rod structure and high integration level. The step-up unit, pulse capacitor, cable discharge device and full safety protection system are all built-in, eliminating on-site wiring work.
- Compact size, moderate weight, high output voltage and stable reliable performance. It replaces the traditional 46.6kg test transformer, operating console and pulse capacitor unit, greatly advancing lightweight development in cable fault testing systems.
- Safe automatic high voltage discharge: Equipped with a built-in safety discharge mechanism. Discharge is completed automatically; discharge duration and frequency are fully adjustable. It avoids hidden safety hazards caused by manual operation, while the whole discharge process can be monitored in real time.
- No power cut required when adjusting impulse voltage; there is no need to adjust the high voltage discharge gap.
- Overcurrent protection is available to prevent equipment burnout and grid impulse damage, safeguarding operator safety.
- The high voltage section adopts integral curing treatment for excellent moisture-proof and insulation performance.
Comparison: Integrated High Voltage Generator vs Conventional Test Transformer
| Comparison Item | Conventional Test Transformer | Integrated High Voltage Generator |
|---|---|---|
| Wiring Complexity | 10 connecting lines, extremely complicated | Built-in 2 cables for direct connection; no extra wiring needed |
| Quantity of Devices | 3 sets + sphere gap + discharge rod | 1 single unit |
| Total Weight | 46.6kg plus capacitor weight | 20 kg |
| Transportation Method | Requires multiple personnel to carry | Pull rod portable design |
| On-site Floor Space | Large footprint | Small footprint |
| Discharge Mode | Manual discharge | Automatic discharge |
| Operation Safety | Poor | Highest safety level |
| Capacitor Arrangement | External placement | Built-in integrated layout |
| Voltage Regulation Method | Adjust sphere gap; power cut needed during adjustment | Discharge voltage & frequency freely adjustable in real time |
| Voltage Regulation Precision | Low | High |
| Discharge Noise | Loud | Quiet |
| Near-end Test Interference | Severe interference | Minimal interference |
Technical Specifications
- Output DC voltage: Continuously adjustable from 0 to 32kV
- Output energy: 2000J/4S or 4μF/32kV
- Maximum output current: 40mA
- Two optional discharge modes: single discharge / periodic discharge
- Periodic discharge time: Adjustable
- Power supply: AC 220V, 50Hz
- Output power: 1000W
- Ambient working humidity: RH ≤85% (at 25°C)
- Overall dimensions: 493mm(L) × 246mm(W) × 408mm(H)
- Net weight: 20 kg
Packing List
| Serial No. | Item Name | Quantity | Unit | Notes |
|---|---|---|---|---|
| 1 | Integrated High Voltage Surge Generator Main Unit | 1 | Set | Model HZWZ-2000, core testing device |
| 2 | High Voltage Output Connection Cables | 2 | Pcs | Built-in matching connecting wires for cable fault test |
| 3 | Safety Earthing Ground Wire | 1 | Pc | For reliable grounding during high voltage operation |
| 4 | AC 220V Power Input Cord | 1 | Pc | Mains power supply cable |
| 5 | Operation Manual (Chinese & English Bilingual) | 1 | Copy | Complete operation & maintenance guidelines |
| 6 | Factory Calibration Certificate | 1 | Copy | Official metrological calibration document |
| 7 | Factory Acceptance Test (FAT) Report | 1 | Copy | Pre-delivery inspection record |
| 8 | Spare Fuses | 2 | Pcs | Consumable spare parts for replacement |
| 9 | Pull Rod Shockproof Portable Carry Case | 1 | Set | For transportation & field storage |
FAQ | High Voltage Surge Generator for Cable Fault Location
Q1: What is this surge generator mainly used for?
A1: It is specially designed for pre-location and precise pinpointing of underground power cable faults. Matched with cable fault testers, it breaks down cable fault points, with positioning accuracy up to within 10 cm for on-site maintenance.
Q2: Which scenarios is this equipment suitable for?
A2: Widely applied for high-resistance faults, grounding faults and intermittent faults of all kinds of buried distribution cables in power stations, urban grids and industrial power systems.
Q3: What is the biggest advantage compared with traditional test transformers?
A3: It adopts an integrated pull-rod design, weighing only 20kg, far lighter than the conventional 46.6kg transformer set. All internal components are pre-assembled, no complicated on-site wiring is required.
Q4: Why can it greatly save on-site working time?
A4: Step-up module, pulse capacitor, discharge device and safety protection system are all built-in. Operators only need to connect two cables to faulty cables directly, which cuts down most wiring procedures.
Q5: What is the adjustable range of output voltage?
A5: DC output voltage is continuously adjustable from 0kV to 32kV, meeting diverse breakdown demands for different cable fault types.
Q6: What discharge modes does it support?
A6: Two optional discharge modes: single impulse discharge and periodic automatic discharge; periodic discharge time can be freely adjusted as needed.
Q7: What are the core energy and power parameters?
A7: Output energy: 2000J/4S or 4μF/32kV; Max output current: 40mA; Rated output power: 1000W.
Q8: Does the machine adopt automatic discharge instead of manual operation?
A8: Yes. It is equipped with an integrated safety discharge mechanism to realize fully automatic discharge. Discharge time and frequency are controllable, avoiding risks brought by manual high-voltage operation.
Q9: Is there overvoltage or overcurrent protection?
A9: Built-in complete overcurrent protection function. It can automatically cut off output to prevent equipment burnout and impact damage to the power grid, fully protecting operators’ personal safety.
Q10: Do I need to cut off power supply when adjusting surge voltage?
A10: No power cut is needed during voltage regulation. You can adjust discharge voltage and frequency in real time conveniently on site.
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