The test kit forseries resonancefrequency is based on the principle of series resonance. The excitation transformer of the series resonance output circuit is used to excite the frequency, and the controller adjusts the series resonance frequency of the test circuit inductance L and C. The resonance voltage is the voltage applied to the test. It is widely used in industries such as power, metallurgy, petroleum, and chemical, and is suitable for handover and preventive testing of large capacity and high voltage capacitance tests.

The series resonance frequency testing kit can be referred to as the testing equipment for series resonance, which can be divided into modulation and style frequency modulation. A series resonant connection is generally composed of a variable frequency power supply, excitation transformer, reactor, and capacitive voltage divider to form a test reactor and capacitor; The parallel connection of the voltage divider is used to measure the resonance voltage on the sample and the signal used for overvoltage protection in the experiment.

Due to the fact that power preventive testing is conducted on large capacity high-voltage electrical equipment, it is recommended to use power frequency withstand voltage testing to test the insulation performance of electrical equipment, that is, to eliminate the use of DC high-voltage generators to test the insulation performance of electrical equipment. Although both are destructive tests, after long-term research, power frequency withstand voltage is superior to DC withstand voltage stability.

Test conditions for the complete set offrequency conversion series resonance test equipment:

When we receive the experimental project, we need to analyze what the main experiments are. For example, power cables, transformers, GIS combinations or buses, whether they use the same voltage for different contents, are also a transformer, and the neutral ungrounded and grounded voltage levels are different. Different wiring, voltage, and capacity configuration schemes directly affect the complete set of frequency conversion series resonance test equipment. In short, to achieve frequency conversion series resonance test, the condition is that resonance can occur when the capacitance is equal to the inductance.