UHV DC Hipot Test Set is specialized high-voltage testing equipment that converts power-frequency AC (220V/380V) into highly stable, continuously adjustable, low-ripple DC high voltage through voltage boosting, rectification, and filtering. It provides a pure high-voltage source for DC withstand voltage and leakage current tests on electrical equipment.
Technical Parameters
| Specification | 60/2 | 60/3 | 60/5 | 120/2 | 120/3 | 120/5 |
| Rated voltage(kV) | 60 | 60 | 60 | 120 | 120 | 120 |
| Rated current(mA) | 2 | 3 | 5 | 2 | 3 | 5 |
| Rated power(W) | 120 | 180 | 300 | 240 | 360 | 600 |
| Machine quality(kg) | 9 | 10 | ||||
| Machine volume(mm3) | 465*390*190 | 565*390*190 | ||||
| Double cylinder height(mm) | 440 | 535 | ||||
Output voltage accuracy : ±(1.0%Reading ± 2 words)
Output current accuracy : (1.0%Reading ± 2 words)
Ripple coefficient : ≤0.5%
Way of working : Intermittent use, rated load 30 minutes
Primary Applications
1.Electrical Equipment Preventive Maintenance:
DC withstand voltage & leakage tests on power cables (especially HV XLPE cables).
DC withstand voltage & leakage tests on generators (stator windings of large hydro/turbine generators).
DC withstand voltage tests on switchgear (breakers, GIS), transformers, instrument transformers.
DC reference voltage (U₁mA) & leakage current (at 0.75U₁mA) tests on surge arresters (especially ZnO types).
2.Factory Acceptance Testing: HV equipment manufacturers' pre-shipment dielectric tests.
3.Research & Laboratories: Dielectric material studies (breakdown strength, conductivity), HV physics, particle accelerators, electrostatic precipitators.
Other: Testing HV components (diodes, capacitors), electrostatic applications.
Advantages
1. Output Voltage Range
UHV offers a full range of DC Hipot Test Sets designed for high-voltage testing applications across power generation, transmission, distribution, and industrial sectors.
Standard voltage ratings include:
- 30kV
- 40kV
- 60kV
- 80kV
- 120kV
- 200kV
Higher voltage configurations can also be customized to meet specific project requirements.
2. Comprehensive Safety Protection
To ensure safe operation during high-voltage testing, UHV DC Hipot Test Sets are equipped with multiple protection features, including:
- Zero-start interlock protection
- Overvoltage protection
- Overcurrent protection
- Breakdown protection
- Grounding protection
- Emergency stop function
- Audible and visual alarms
- Automatic timing control
These safeguards help protect both personnel and equipment throughout the testing process.
3. Leakage Current Measurement Accuracy
UHV utilizes high-precision digital sampling technology to monitor leakage current continuously during testing.
Key benefits include:
- High-sensitivity current detection
- Stable and dependable data acquisition
- Real-time voltage and current display
- Early identification of insulation deterioration and potential defects
This enables users to assess insulation condition more accurately and make informed maintenance decisions.
4. Voltage Stability and Ripple Performance
UHV DC Hipot Test Sets are engineered to deliver reliable and consistent high-voltage output, featuring:
- Excellent voltage stability
- Low-ripple output design
- High-accuracy voltage indication
- Stable performance under changing load conditions
With a ripple factor as low as ≤0.5%, the system minimizes measurement errors and helps ensure dependable test results.
5. Automatic Discharge Function
UHV systems are equipped with an automatic discharge function that safely releases residual energy after testing is completed.
Benefits include:
- Improved operator safety
- Reduced risk of electric shock
- Shorter testing cycles
- Greater efficiency during field operations
This feature is especially valuable when testing capacitive equipment such as power cables, where residual charges may remain after high-voltage testing.
Why choose UHV?
1. Compliance with IEC and IEEE Standards
UHV DC Hipot Test Sets are designed and manufactured in accordance with internationally recognized high-voltage testing practices and can be used to meet the requirements of major industry standards, including:
- IEC 60060 – High-Voltage Test Techniques
- IEC 60502 – Power Cable Testing Standards
- IEC 61010 – Safety Requirements for Electrical Test Equipment
- IEEE 95 – Recommended Practice for DC High-Voltage Testing
- IEEE 400 – Guide for Field Testing and Evaluation of Power Cable Systems
For international tenders, project acceptance, and certification requirements, we can provide the necessary technical documents and supporting information.
2. Calibration Certificates and Full Traceability
Every UHV DC Hipot Test Set is thoroughly tested and calibrated before leaving the factory.
Standard documentation includes:
- Factory Calibration Certificate
- Product Test Report
- Quality Inspection Report
- Calibration Data Records
For projects with additional compliance requirements, we can also arrange:
- Third-Party Calibration Services
- Internationally Traceable Calibration Services
This ensures reliable test results and helps customers meet quality management and audit requirements.
3. Data Logging and Report Generation
Depending on the model, UHV offers a range of data management features to simplify testing and record keeping, including:
- Test data storage
- Historical record review
- USB data export
- PC software communication
- Automatic report generation
- Test result analysis
These functions are especially useful for:
- Power utilities
- EPC contractors
- Independent testing and inspection companies
They help streamline project acceptance, equipment maintenance, and quality traceability.
4. Built for Field Testing
UHV DC Hipot Test Sets are designed with both laboratory and on-site applications in mind.
Key advantages include:
- Compact footprint
- Lightweight construction
- Easy transportation
- Quick setup and operation
- Rugged mechanical design
- Reliable performance in demanding environments
They are widely used in:
- Substations
- Power plants
- Cable installation projects
- EPC job sites
Whether in a workshop or out in the field, the equipment is built to handle real-world testing conditions.
5. After-Sales Service and Technical Support
At UHV, our support doesn't end after delivery. We provide technical assistance throughout the entire service life of the equipment.
Our support services include:
- Product selection guidance
- Application recommendations
- Remote technical assistance
- Operator training
- Installation support
- User manuals and training videos
- Spare parts supply
- Warranty service
- Lifetime technical consultation
Our engineering team responds quickly to customer requests and is always available to help keep your testing operations running smoothly.
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