Variable frequency resonant withstand voltage equipment? 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.
The frequency conversion resonant withstand voltage equipment 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. Variable frequency resonant withstand voltage equipment is widely used in industries such as power, metallurgy, petroleum, chemical, etc., and is suitable for high-capacity, high-voltage capacitive test samples.
Composition of Frequency Conversion Resonant Voltage Endurance Equipment
The frequency conversion resonant voltage withstand equipment mainly consists of a frequency conversion power supply, an excitation transformer, a reactor, and a capacitive voltage divider.
Working principle of frequency conversion resonant withstand voltage equipment
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.
Characteristics of Frequency Conversion Resonant Voltage Endurance Equipment
The large screen displays test data and test status, and has real-time operation step prompt function
Can flexibly adjust the experimental voltage, frequency range, and pressurization time
The test results can calculate the capacitance of the test sample
Equipped with computer communication interface for easy communication and management of experimental data
Small size, light weight, easy operation
High resolution, frequency resolution of 0.001HZ
High safety and reliability, the system has overcurrent, overvoltage, and discharge protection functions, which can effectively protect personal and equipment safety. The test results can be printed and upgraded with software