Variable Frequency AC Resonant Test System for High Voltage Transformer, Power Cable, GIS and Electrical Equipment Testing

The SXBP Variable Frequency Resonant Test System provides an alternative approach based on controlled series resonance. The system is developed for AC withstand and insulation testing of high-voltage and extra-high-voltage electrical equipment. By combining variable-frequency excitation with resonant compensation, it is designed to generate high AC test voltages while adapting to the electrical characteristics of the test object.

• High Voltage Capability
  Rated voltage configurations extend up to 2,000 kV.
• Large Capacity Range
  System capacity can be configured from 300 kVA to 20,000 kVA.
• Variable-Frequency Technology
  The 20–300 Hz frequency range provides flexibility for different resonant conditions.
• High-Q Resonant Operation
  A system Q factor of ≥50 supports efficient resonant testing.
• Low Waveform Distortion
  The sine-wave output has waveform distortion of ≤1%.
• Flexible Engineering
  Different system components can be combined according to the characteristics of the test object.

• Power Utilities
  Substations, transmission networks and power infrastructure projects.
• Cable Manufacturers
  Routine and high-voltage AC testing of HV/EHV cables.
• Transformer Manufacturers
  Insulation withstand testing of power transformers.
• Switchgear Manufacturers
  GIS and SF6 switchgear high-voltage testing.
• Testing Laboratories
  High-voltage equipment verification and laboratory testing.
• EPC & Commissioning Companies
  On-site testing during installation, commissioning and acceptance.