Variable Frequency Series Resonant Test System for On-Site Commissioning and XLPE Cable Testing with Variable Frequency Resonance Tuning

The Variable Frequency Series Resonant Test System uses adjustable-frequency control to achieve resonance between the reactor and the capacitive test object. This design helps generate the required AC test voltage while reducing the reactive power demand on the input supply compared with conventional non-resonant arrangements of comparable test duty.

The system is suitable for on-site commissioning, preventive maintenance and laboratory testing of high-voltage electrical equipment.

• Variable-frequency resonance tuning

• AC insulation withstand testing

• Output voltage and current monitoring

• Adjustable voltage ramping, where supported

• Protection against abnormal operating conditions, according to configuration

XLPE power cables, substations, GIS, power transformers, switchgear and other compatible capacitive loads.

Customers often need to know whether the system can accommodate different cable lengths, whether the reactor modules are configurable, and whether the available input power is sufficient.

Our engineering team can evaluate these requirements using the test object's capacitance, required voltage and operating frequency range.

It allows the operating frequency to be adjusted to establish resonance with the test circuit, helping manage the power requirements for capacitive loads.

Potentially, depending on the reactor combinations, voltage ratings, current limits and system configuration.

Yes, if the selected configuration, transport arrangements and environmental ratings meet the site requirements.