What is the function of the incoming inductor used in the power supply of the intermediate frequency melting furnace , the capacitor on the capacitor cabinet, and the reactor?

The reactance value of the inductor is proportional to the frequency of the current, so the reactor is to block the higher harmonics in the current, to prevent the spike voltage from damaging the power semiconductor in the intermediate frequency device, and the capacitor cabinet has both a capacitor and a reactor. In fact, each circuit is a capacitor and a reactor connected in series, forming a tuned circuit, specifically filtering 5 times, 7 times, 11th harmonics in the power grid. Their capacitance values are almost the same, and the reactance values are different.

The reactance I said is the rectified reactance. It is not the reactance that you said with the capacitor cabinet. There is no oblique current reactance in the capacitor cabinet of my equipment.

The rectified reactor is called a smoothing reactor, which is enough to explain the effect of the reactor .