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AC resonant test system （variable frequency）
Applications
Variable frequency resonant test system is used to do AC voltage withstand test on the field for capacitive objects, such as power transformers, power cables, turbine, and hydraulic generators. At power frequency, since the large capacitance of test objects and required high testing voltage, the power of the used source is necessarily high. Compared to traditional AC test systems, the variable frequency test system is featured by small dimensions, lightweight and easy moving. The system is composed by modules that can be combined in several ways. This reduces human labor required and improves working efficiency.
Features
Pure sine wave, low waveform distortion <3%
Frequency between 20~300Hz
PD<10pc<>
Modules flexibly combined according to test requirements, easy and fast assemble
Optical fiber communication, isolating high voltage control circuit and low voltage control circuit
Microcomputer control with stable output; signals are generated by special chips, the output frequency stability up to 0.1Hz, output voltage instability <1%
Variable Frequency Resonant Test System.pdf
