VS-W30-100 100kV Partial Discharge Free AC Hipot Test System

Product Details

The VS-W30-100 Partial Discharge Free AC Withstand Voltage Test System is a professional high-voltage testing solution developed for AC withstand voltage tests and partial discharge detection of transformers, switchgear, insulators, cables, bushings, GIS equipment, and other electrical apparatus.

The system adopts an SF6 gas-insulated test transformer instead of a traditional oil-immersed structure, eliminating the risk of oil contamination while significantly reducing equipment weight by 20% to 60%. With excellent insulation performance and ultra-low partial discharge characteristics, the transformer achieves a partial discharge level of ≤3pC, while the complete system maintains a total partial discharge level of ≤5pC under rated voltage conditions.

The integrated test system consists of a high-voltage test transformer, coupling capacitor, high-voltage current limiting reactor, low-voltage compensation reactor, isolation transformer, automatic control console, and compensation cabinet. The low-voltage compensation design effectively reduces source-side current consumption by up to 60%, improving energy efficiency and reducing operating costs.

Equipped with a 7-inch color touchscreen control console, the system supports both automatic and manual testing modes. Users can independently configure up to five voltage stages, voltage ramp rates, and withstand test durations. Automatic testing functions include voltage ramping, compensation switching, timing, voltage reduction, data storage, and report printing, greatly improving testing efficiency and repeatability.

Designed for high-voltage laboratories and field testing applications, the system provides stable sinusoidal output with waveform distortion less than 5%, low operating noise, and reliable protection against overvoltage and overcurrent conditions. The scalable design allows similar systems within the product series to achieve voltage ratings up to 1200kV for ultra-high-voltage testing applications.

Product Guide

How the System Works

The AC Withstand Voltage Test System generates a stable high-voltage power frequency output through the SF6 insulated test transformer. During testing, the coupling capacitor and measurement circuit continuously monitor partial discharge activity while the automatic control system manages voltage ramping, holding, and reduction processes.

The low-voltage compensation reactor minimizes input current demand, improving energy efficiency and reducing stress on the power supply. The system simultaneously performs withstand voltage testing and partial discharge measurement, enabling comprehensive insulation evaluation of high-voltage equipment.

Features

1、SF6 gas-insulated transformer design without oil contamination

2、Overall partial discharge level ≤5pC

3、Transformer partial discharge level ≤3pC

4、Rated output voltage up to 100kV

5、Reactive power compensation reduces source current by up to 60%

6、Automatic and manual testing modes

7、Five-stage programmable voltage and timing settings

8、Adjustable voltage ramp rate from 0.5kV/s to 2.5kV/s

9、Automatic compensation switching and voltage regulation

10、Historical data storage and printing functions

11、High-precision voltage measurement

12、Stable sine-wave output with distortion ≤5%

13、Low-noise operation ≤65dB

14、Comprehensive overvoltage and overcurrent protection

15、Suitable for partial discharge and AC withstand voltage testing

Applications

1、Power Utility Companies

Used for routine insulation testing and partial discharge evaluation of transformers, switchgear, GIS equipment, cables, and substation apparatus.

2、High Voltage Laboratories

Suitable for type testing, factory acceptance testing, and research projects requiring ultra-low partial discharge performance.

3、Transformer Manufacturers

Used for quality control, insulation verification, and final factory testing of power and distribution transformers.

4、Universities and Research Institutes

Supports high-voltage engineering education, insulation research, and advanced electrical testing projects.

5、Industrial and Mining Enterprises

Provides preventive maintenance testing and insulation condition assessment for critical electrical equipment.

Applications

1、Transformer AC Withstand Voltage Testing

2、GIS Partial Discharge Testing

3、High Voltage Switchgear Testing

4、Power Cable Insulation Testing

5、Insulator and Bushing Testing

6、Electrical Equipment Factory Acceptance Testing

7、High Voltage Laboratory Research

8、Preventive Maintenance Programs

Weshine Advantages

Weshine Electric specializes in high-voltage testing equipment and partial discharge measurement systems. Our SF6 gas-insulated AC withstand voltage test systems combine ultra-low partial discharge performance, intelligent automation, energy-efficient compensation technology, and reliable safety protection. Designed for demanding laboratory and field applications, Weshine solutions help customers achieve accurate insulation assessment, regulatory compliance, and long-term equipment reliability.