AC Resonant Test System for High Voltage AC Withstand Testing of Power Cables, Transformers, GIS and Switchgear

The SXBP Variable Frequency Series Resonance Test System is a high-voltage AC testing solution designed for insulation withstand tests on cables, GIS, transformers, switchgear and other high-voltage electrical equipment.

By applying variable-frequency resonance technology, the system can achieve high test voltages with a relatively controlled power requirement. The operating frequency can be adjusted according to the electrical characteristics of the test object, making the system suitable for both laboratory environments and on-site commissioning.

• Power Cable Testing
  Suitable for AC withstand testing of medium-, high- and extra-high-voltage cables, including long cable sections with significant capacitive loads.
• GIS & SF6 Switchgear
  Provides a high-voltage AC test solution for GIS assemblies, SF6 circuit breakers and related insulation systems.
• Transformer Testing
  Can be applied to AC withstand and insulation verification of power transformers and other transformer equipment.
• CT, VT & CVT Testing
  Suitable for high-voltage insulation testing of instrument transformers and related primary equipment.
• Other HV Equipment
  The system can also be configured for testing various high-voltage electrical components and insulation systems according to project requirements.

• 110 kV cable testing
• 220 kV cable testing
• 500 kV cable testing
• GIS AC withstand testing
• SF6 circuit breaker testing
• Transformer insulation testing
• CT/PT/CVT insulation testing
• Other HV and EHV equipment testing

Q:What is a variable frequency series resonance test system?

It is a high-voltage AC testing system that uses a variable-frequency power source and resonant circuit to generate the required test voltage for capacitive electrical loads.

Q:What equipment can be tested with SXBP?

Typical test objects include power cables, GIS, SF6 circuit breakers, transformers, CTs, VTs and CVTs.

Q:What is the maximum test voltage?

Depending on the configuration, the SXBP series can provide rated test voltages from 200 kV up to 2,000 kV.

Q:What is the output frequency range?

The standard frequency adjustment range is 20–300 Hz.

Q:Can the system be customized?

Yes. The system configuration can be selected according to the required test voltage, test capacity, load capacitance and specific application.

Q:Is SXBP suitable for field testing?

Yes. The system can be configured for both laboratory testing and on-site high-voltage commissioning/acceptance testing.