Variable Frequency AC High Voltage Test System
Frequency Conversion Power Supply + High Voltage Reactor + Capacitive Divider
1. Product Overview
The Variable Frequency AC High Voltage Test System is designed for AC withstand voltage testing of power cables, transformers, GIS, switchgear, and other high-voltage equipment. It adopts frequency conversion technology (20–300 Hz) to reduce test capacity requirements and improve field portability.
2. System Configuration
- Variable Frequency Power Supply (1 Unit)
- High Voltage Reactor
- Capacitive Voltage Divider (1 Unit)
- Control Panel with Touch Display
- High Voltage Cables & Accessories
- Aluminum Portable Cases
3A. Variable Frequency Power Supply Specifications
| Parameter | Specification |
| Rated Power | 5.5 – 500 kW |
| Input Voltage | 3 Phase 380V ±5% or Single Phase 220V ±5%, 45–65Hz |
| Output Voltage | 0 – 400V Adjustable |
| Output Frequency | 20 – 300 Hz |
| Frequency Resolution | 0.1 Hz Step Adjustable |
| Frequency Stability | ≤ 0.02% |
| Output Current | 13 – 1250 A |
3B. High Voltage Reactor Specifications
| Parameter | Specification |
| Rated Working Voltage | 0 – 1000 kV |
| Rated Working Current | 1 – 10 A |
| Rated Inductance | 30 – 600 H |
| Continuous Working Time | 60 Minutes |
| Temperature Rise | < 60°C |
| Working Frequency | 20 – 300 Hz |
3C. Capacitive Voltage Divider Specifications
| Parameter | Specification |
| Capacitance | 300 – 5000 pF |
| Rated Voltage | 10 – 1000 kV |
| Working Frequency | 20 – 300 Hz |
| Measurement Uncertainty | 1.0% |
4. Applications
- Power Cable AC Withstand Test
- Transformer AC Testing
- GIS Equipment Testing
- Switchgear Testing
- Power Plant & Substation Commissioning
- Laboratory High Voltage Testing
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