AC Hipot

1. What types of electrical equipment can UHV AC Hipot Test Systems test?

UHV High Voltage AC Hipot Test Systems are designed for insulation withstand voltage testing of a wide range of high-voltage equipment, including:

Power transformers

GIS switchgear

Circuit breakers

Current transformers (CT)

Voltage transformers (PT/CVT)

Power cables

High-voltage motors

Generators

Busbars

Switchgear assemblies

Insulators

Surge arresters

Our systems are widely used for factory testing, commissioning, preventive maintenance, and condition assessment.

 

2. What output voltage ranges are available?

UHV offers flexible configurations to meet different testing requirements.

Typical voltage levels include:

50 kV

100 kV

150 kV

200 kV

300 kV

500 kV

800 kV and above

For EHV and UHV projects, customized systems can be configured according to the test object and applicable standards.

 

3. What is the maximum output capacity?

UHV Resonant AC Hipot Systems are available in a wide range of capacities.

Typical configurations include:

5 kVA

10 kVA

25 kVA

50 kVA

100 kVA

300 kVA

500 kVA and above

Modular reactor combinations allow the system capacity to be expanded based on project requirements.

 

4. Does UHV use Resonant Technology?

Yes.

Series Resonant Technology is one of UHV's core technologies and is widely used for testing capacitive loads such as:

Power cables

GIS equipment

Transformers

Generators

Key advantages include:

Lower power consumption

Reduced power source requirements

Higher test efficiency

Excellent output waveform quality

Improved operational safety

Lightweight modular design

 

5. Is the output waveform a true sine wave?

Yes.

UHV Resonant AC Hipot Systems provide a high-quality sinusoidal output.

Benefits include:

Very low waveform distortion

Stable voltage output

Accurate insulation testing

Compliance with utility testing requirements

The output waveform closely simulates actual operating conditions of power equipment.

 

6. Is the system suitable for GIS testing?

Absolutely.

UHV systems are specifically designed for GIS withstand voltage testing.

Applications include:

GIS factory testing

GIS commissioning

GIS preventive maintenance

GIS extension projects

The resonant design effectively handles the high capacitance characteristics of GIS equipment.

 

7. Is it suitable for long-distance cable testing?

Yes.

Series Resonant Test Systems are particularly suitable for testing:

XLPE cables

Submarine cables

Transmission cables

Distribution cables

Advantages include:

Excellent compensation capability for large capacitive loads

Stable voltage output over long cable lengths

Reduced test power requirements

Efficient field operation

 

8. What protection functions are included?

Safety is a key design consideration for all UHV test systems.

Standard protection features include:

Over-voltage protection

Over-current protection

Flashover protection

Ground fault protection

Zero-start interlock

Emergency stop function

Reactor over-temperature protection

Automatic shutdown under abnormal conditions

These protections help ensure operator safety and equipment protection during testing.

 

9. Is the testing process automated?

Yes.

UHV systems support automatic test procedures, including:

Automatic frequency tuning

Automatic voltage ramp-up

Automatic timing

Automatic voltage reduction

Automatic test termination

Automatic data recording

This significantly reduces operator workload and improves testing efficiency.

 

10. Does the system support partial discharge (PD) testing?

Yes.

Selected UHV resonant test systems can be configured with partial discharge testing solutions.

Applications include:

GIS testing

Transformer testing

Cable testing

Electrical equipment factory testing

PD testing capability can be integrated according to project requirements.

 

11. Does the system comply with IEC standards?

Yes.

UHV systems are designed and manufactured in accordance with international and industry standards, including:

IEC 60060

IEC 60270

IEC 60076

IEC 62271

IEEE related testing practices

Utility commissioning and maintenance specifications

This ensures reliable and standardized testing performance.

 

12. Does the system provide data recording and reporting functions?

Yes.

UHV systems support comprehensive test data management.

Functions include:

Test data storage

Historical record review

USB export

PC software support

Test report generation

Data archiving

These features help customers maintain complete testing records and support long-term asset management.

 

13. Is the system convenient for field transportation?

Yes.

UHV Resonant Test Systems use a modular structure.

Advantages include:

Lightweight modules

Easy transportation

Flexible installation

Quick assembly on site

Suitable for substation and field applications

This design is especially beneficial for utility and EPC projects where equipment must be moved frequently.

 

14. Is it suitable for 220 kV, 500 kV, and higher voltage projects?

Yes.

UHV has extensive experience supplying test systems for:

110 kV substations

220 kV substations

330 kV substations

500 kV substations

EHV transmission projects

UHV transmission projects

System configurations can be customized to meet specific project voltage and capacity requirements.

 

15. Are you a manufacturer or a trading company?

UHV is a professional manufacturer specializing in high-voltage electrical testing equipment.

Our business covers:

Research and development

Manufacturing

Technical support

International sales

After-sales service

This allows us to provide direct technical support and competitive factory pricing.

 

16. Do you have in-house R&D capabilities?

Yes.

UHV has a dedicated engineering team focused on:

High-voltage testing technology

Resonant testing systems

Control software development

Automation technology

Power equipment diagnostic solutions

Continuous innovation enables us to meet evolving industry requirements and customer needs.

 

17. Do you have experience with utility projects?

Yes.

UHV equipment is widely used by:

Power utilities

Substations

Power generation companies

Renewable energy projects

Electrical equipment manufacturers

EPC contractors

Our products support commissioning, maintenance, diagnostics, and condition assessment of power system equipment.

 

18. Do you provide calibration certificates?

Yes.

Before shipment, every system undergoes:

Functional testing

Performance verification

Quality inspection

Available documentation includes:

Factory Test Report

Inspection Certificate

Calibration-related documentation upon request

User Manual

 

19. Do you provide on-site training?

Yes.

UHV provides comprehensive training and technical support, including:

Installation guidance

Commissioning assistance

Operational training

Testing procedure support

Remote technical support

Training programs can be tailored to customer requirements and project conditions.

 

20. What is the warranty period?

UHV typically provides:

12-month warranty after delivery

Lifetime technical support

Spare parts support

Software update assistance

Long-term maintenance consultation

Our goal is to ensure reliable operation throughout the entire service life of the equipment.

As one of the leading ac hipot manufacturers and suppliers in China, we warmly welcome you to buy high-grade ac hipot made in China here from our factory. For price consultation, contact us.

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