Complete sets of series resonant frequency test device is equipment for AC withstand voltage test using variable frequency voltage regulation. The device uses the principle of series resonance and uses a smaller capacity power supply to complete a test equivalent to 30 to 150 times the capacity of the power supply, which greatly alleviates the problem of insufficient power supply capacity in field tests. This instrument is widely used in four-level and five-level installation (repair, test) power facilities enterprises, power supply, power generation, railway, steel, petrochemical, mining, power transmission and transformation equipment manufacturing and other industries. It is suitable for large-scale plants with voltage levels of 6kV to 35kV. Capacitive test products with high capacity and high voltage, such as handover test and preventive test of generator sets, high voltage cross-linked cables, power transformers, high voltage transformers, high voltage circuit breakers, high voltage bushings and other equipment.

The device usually uses a large-size color screen to display test data and test status, and has the function of prompting real-time operation steps. Test parameter setting, test control, and test results are displayed on the same screen, which is intuitive and clear, and has automatic timing and operation prompt functions. The test result can calculate the capacitance value of the tested product. Self-provided miniature printer with test data printing function.