Variable Frequency AC Resonant Test System High Voltage Series Resonance Test Set for Cable, Transformer, GIS, Switchgear and Generator AC Withstand Voltage Testing

The Variable Frequency AC Resonant Test System is a high-voltage electrical testing solution designed for AC withstand voltage and dielectric testing of large-capacitance electrical equipment.

By using the series resonance principle, the system adjusts the output frequency to match the inductive reactance of the high-voltage reactor with the capacitive reactance of the test object. This enables the system to generate high AC test voltage while keeping the required input power relatively low.

This makes variable frequency series resonance technology particularly suitable for long power cables, transformers, GIS, switchgear, generators, busbars and other capacitive high-voltage equipment.

• AC withstand voltage test
• AC dielectric withstand test
• Power cable AC withstand test
• Transformer AC withstand test
• GIS AC withstand test
• Switchgear AC withstand test
• Generator AC withstand test
• Busbar withstand test
• Insulator testing
• Bushing testing
• CT/PT testing
• High-voltage insulation verification

• Variable-frequency operation
• Modular reactor configuration
• High-voltage output with relatively low input power
• Portable field-testing design
• Digital control system
• Automatic frequency tuning
• Overvoltage protection
• Overcurrent protection
• Flashover/detuning protection
• Real-time test monitoring