The Variable Frequency Series Resonant Test System is designed for high-voltage AC withstand testing of capacitive electrical equipment. By adjusting the output frequency to achieve resonance between the high-voltage reactor and the capacitance of the test object, the system can generate the required test voltage with reduced input power demand compared with conventional test arrangements of comparable output capability.
The system typically consists of a variable frequency power supply, excitation transformer, high-voltage reactor, capacitive voltage divider and control system. The exact configuration depends on the required test voltage, load capacitance, test frequency and application.
Designed for power utilities, electrical equipment manufacturers, high-voltage laboratories and field testing contractors, the system can be engineered for different voltage levels and site requirements.
A properly matched series resonant system can reduce the input power required for high-capacitance test objects.
The system can be engineered around different test capacitances, voltage requirements and reactor combinations.
We recommend providing a technical proposal based on the customer's equipment ratings, capacitance, test voltage, test duration and site power supply.
Depending on the configuration, it can be used for power cables, transformers, GIS, generators, switchgear, bushings and other capacitive test objects.
Yes. Rated voltage, capacity, reactor configuration, control functions and accessories can be specified according to the project requirements.
Please provide the equipment under test, rated voltage, required test voltage, load capacitance or cable length and cross-section, test duration, available power supply and applicable standard.
Yes, if the selected configuration is designed for field deployment and the site has suitable space, grounding and power facilities.
The selection should be based on the required test voltage, load capacitance, resonant frequency range, current, test duration and the manufacturer's validated configuration calculations.
Looking for a series resonant test system for your high-voltage testing project? Send us your test requirements to receive a customized technical proposal and quotation.