100kV AC Hipot Test System | VS-W30-100

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.

Specification

System Specifications
Parameter	Specification
Rated Capacity	30kVA
Input Power Supply	Single Phase AC 380V, 50Hz
Rated Output Voltage	100kV
Rated Output Current	0.3A
Output Waveform	Pure Sine Wave
Waveform Distortion	≤5%
System Noise	≤65dB
Short Circuit Impedance	≤6%
Partial Discharge Level	≤5pC
Continuous Operating Time	30 Minutes
Overvoltage Operation	110% Rated Voltage for 1 Minute
Protection Functions	Overvoltage & Overcurrent Protection

 

SF6 Test Transformer			Automatic Control Console
Parameter	Specification		Parameter	Specification
Rated Capacity	30kVA		Rated Capacity	10kVA
Rated Voltage	100kV		Input Voltage	AC380V
Input Voltage	0–400V		Output Voltage	0–420V
Gas Type	SF6		Rated Current	23A
Working Pressure	0.4MPa		Voltage Accuracy	Class 1.0
Refill Pressure Warning	Below 0.35MPa		Display	7-inch Color Touch Screen
Instrument Ratio	1000:01:00		Voltage Ramp Rate	0.5kV/s – 2.5kV/s
Partial Discharge Level	≤3pC		Test Modes	Automatic / Manual
Dimensions	Φ600 × 1380mm		Weight	152kg
Weight	226kg

 

Isolation Transformer
Parameter	Specification
Capacity	10kVA
Voltage Ratio	0.4kV / 0.4kV
Rated Current	25A / 25A
Filtering Attenuation	≥40dB (40kHz–100kHz)
Filtering Attenuation	≥60dB (100kHz–2MHz)
Insulation Strength	3kV / 1min

For different testing requirements, Weshine provides professional AC High Voltage Tester solutions covering laboratory testing, factory inspection, and high-voltage equipment evaluation.

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

• SF6 gas-insulated transformer design without oil contamination
• Overall partial discharge level ≤5pC
• Transformer partial discharge level ≤3pC
• Rated output voltage up to 100kV
• Reactive power compensation reduces source current by up to 60%
• Automatic and manual testing modes
• Five-stage programmable voltage and timing settings
• Adjustable voltage ramp rate from 0.5kV/s to 2.5kV/s
• Automatic compensation switching and voltage regulation
• Historical data storage and printing functions
• High-precision voltage measurement
• Stable sine-wave output with distortion ≤5%
• Low-noise operation ≤65dB
• Comprehensive overvoltage and overcurrent protection
• Suitable for partial discharge and AC withstand voltage testing

Application Areas & Testing Capabilities

High Voltage Laboratories

Suitable for:

• Insulation research
• Dielectric testing
• High-voltage experiments
• Certification testing

Electrical Equipment Manufacturers

Used for:

• Routine inspection
• Factory acceptance testing
• Insulation performance verification

Power Utilities

Applied in:

• Equipment maintenance
• Commissioning testing
• Condition assessment

For complete solutions, Weshine also provides professional High Voltage Tester products for transformer, GIS, cable, and electrical equipment testing.

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.