DC reactance: DC reactor, also known as smoothing reactor, is mainly used on the DC side of inverters and has many applications in general frequency converters. There is a DC current with an AC component flowing through the reactor. The main purpose is to limit the AC component superimposed on the DC current to a certain specified value, maintain the continuity of the rectified current, reduce the current ripple value, improve the input power factor, and suppress the harmonics generated by the converter device.

Hollow core reactor: Hollow core reactor is an inductive high-voltage electrical device used in power systems to limit short-circuit current, compensate reactive power, and ensure equal displacement. The magnetic flux forms a circuit through air, hence the name hollow core reactor. Hollow core reactors are mainly divided into hollow series reactors, hollow filter reactors, hollow parallel reactors, hollow current limiting reactors, hollow split reactors, hollow starting reactors, etc. They are commonly used in reactive power compensation, harmonic filtering, current limiting and other occasions.

High voltage series reactor: High voltage series reactors are mainly used in series with high-voltage capacitor banks in 6kV~35kV power systems. They can effectively suppress and absorb high-order harmonics, limit closing inrush current and operating overvoltage, protect capacitor banks, improve system voltage waveforms, and enhance power factor of the power grid.