By hvhipot 
HV Hipot Electric Co., Ltd. specializes in producing series resonance (also known as series resonance withstand voltage tester). Next, we will share with you the principle of series resonance testing.
The equipment used for the frequency conversion series resonance structure test can apply the principle of series parallel resonance, and control the output signal frequency of the frequency conversion controller through market regulation, so that the inductance L of the reactor and the capacitance C of the test sample in the working circuit change resonance, and the resonance voltage is the voltage applied to the test sample. Power is provided through a frequency modulation controller, and after initial boosting, the excitation transformer tests the voltage to achieve high voltage on the reactor l and sample cx. By changing the output frequency of the frequency modulation controller, the resonant frequency of the circuit depends on the capacitor cx and inductor l of the reactor, and the output voltage of the variable frequency controller is adjusted to achieve the required voltage on the sample.
The HV Hipot Electric Co., Ltd. series uses frequency conversion technology to connect a resonant system consisting of a frequency conversion control power supply, excitation transformer, reactor, capacitive voltage divider, and compensation standard capacitor (optional). The test object forms a series resonant connection with the capacitor of the reactor; The voltage divider is connected in parallel with the test object to measure the resonant voltage on the test object and issue an overvoltage protection signal; The frequency modulation power output is coupled to the series resonant circuit through an excitation transformer to provide excitation power for series resonance. The test and detection device for frequency conversion series resonance structure is based on the working principle of knowledge series resonance. The excitation transformer can be used to excite the student series resonance control circuit, adjust the output signal frequency of the frequency conversion controller, and make the circuit inductance L and the test sample C resonate in series. The resonance voltage is the voltage applied to the test sample. This frequency conversion resonance test device is widely used in industries such as power, metallurgy, petroleum, and chemical.
The design of the complete set of frequency conversion series resonance test equipment mainly focuses on the AC withstand voltage test of different cross-linked cables, hydroelectric generators, main transformers, busbars, GIS, etc. It has a relatively wide range of applicable legal scope and is not an ideal withstand voltage equipment for high voltage test management departments and power enterprise installation and maintenance engineering construction units at the local, municipal, and county levels.
The frequency conversion series vibration testing equipment is suitable for AC pressure resistance testing of 10kV, 35kV, 110kV, 220kV, and 500kV polyethylene power cables. Suitable for withstand voltage performance testing of 60kV, 220kV, 500kV GIS AC. Suitable for withstand voltage testing of large transformers and generators; Induction withstand voltage test for power transformers; Measurement of grounding resistance.