By hvhipot 
When configuring conventional frequency conversion series resonance test equipment, the inductance is not variable, but series resonance is achieved by adjusting the frequency, which is also the difference between tuned series resonance and frequency modulated series resonance. In the application of tuning series resonant devices, manually and automatically, it is the range value of adjustable inductance. You can rest assured that if it is a manual type, the adjustment should pay attention to the observation of the voltage transformer. The high voltage at the peak is the most suitable inductance value, and the determination of inductance does not require further adjustment. Instead, the output voltage should be adjusted to generate resonance voltage, and the voltage should be adjusted as much as possible to improve the uniform speed of high voltage.
The tuning series resonance test device refers to a mode with a constant resonance frequency and adjustable inductance. The specialized testing instrument produced for hydropower units meets the testing technical specifications and requirements for various specifications and capacities. The product has stable and reliable performance, and is the main recommended product for measuring the insulation performance of generators. Inductive series resonance test device, manual/automatic inductance, electronic boost, simple and easy to learn, composed of control part, excitation part, boost part and acquisition part, fully utilizing programmable software technology to meet the requirements of automatic testing, manual testing and semi-automatic testing.
Test the windings of the generator. The test frequency is 50 Hz, the test voltage is 22 kV, and the test current is 13.7 A. During the test, the load regulating inductance is used, which fully meets the test requirements. Therefore, the load regulating series resonant device can fully bear the load. Adjust the inductance, please use it freely.