Variable frequency resonant voltage withstand device? Wuhan UHV specializes in the production of series resonance, with a wide range of product selection and professional electrical testing. To find series resonance, choose Wuhan UHV.
Variable frequency resonant withstand voltage device, this series of withstand voltage devices is mainly designed and manufactured for AC withstand voltage testing of primary electrical equipment in substations of 500KV and below. It can meet the AC withstand voltage test requirements for capacitive equipment such as transformers, GIS systems, SF6 switches, cables, bushings, transformers, generators, motors, porcelain bottles, etc. according to regulations. It can meet the requirements of both high voltage and low current equipment testing conditions, as well as low voltage and high current equipment testing conditions.
Composition of frequency conversion resonant voltage withstand device
The variable frequency series resonance test device mainly consists of a variable frequency power supply, excitation transformer, reactor, and capacitive voltage divider.
Variable frequency resonant voltage withstand device, also known as
AC voltage withstand resonance device, variable frequency resonance, variable frequency series resonance, series resonance, series resonance transformer, series resonance test equipment, AC voltage withstand test equipment, cable voltage withstand test equipment, GIS AC voltage withstand test device, frequency modulation series resonance voltage withstand test device, variable frequency series resonance test device, generator AC voltage withstand test device, cross-linked cable AC voltage withstand test device, variable frequency series resonance test transformer, power frequency resonance voltage withstand test equipment, etc.
Principle of Frequency Conversion Resonant Voltage Endurance Device
We know that when the circuit frequency f=1/2 π√ LC, resonance occurs in the circuit, and the voltage on the test sample is Q times the output voltage of the excitation transformer high voltage end. Q is the system quality factor, which is the voltage resonance multiple, generally ranging from tens to hundreds or more. First, adjust the output frequency of the variable frequency power supply to induce series resonance in the circuit, and then adjust the output voltage of the variable frequency power supply under the condition of circuit resonance to achieve the test value of the sample voltage. Due to the resonance of the circuit, a smaller output voltage of the variable frequency power supply can generate a higher test voltage on the test sample CX.