HZXB Series Resonance Withstand Test Set
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Catalog excerpts

In the series circuit composed of resistors, inductors and capacitors, when the capacitive reactance XC is equal to the inductive reactance XL, ie XC=XL, the phase of the voltage U and the current I in the circuit is the same, and the circuit exhibits pure resistance. Called series resonance. When the circuit undergoes series resonance, the impedance of the circuit is Z=VRA2 (XC-XL)a2=R. The total impedance in the circuit is the smallest and the current will reach the maximum value. The variable frequency series resonance test device, also called series resonance.lt is composed of a variable frequency power supply, an excitation transformer, a reactor and a capacitor divider. The capacitance of the test object and the reactor form a series resonant connection mode; the voltage divider is connected in parallel to the test object for measuring the resonance voltage on the test object and making an overvoltage protection signal; the frequency modulation power output is coupled via the excitation transformer A series resonant tank that provides excitation power for series resonance.

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