The Difference Between Ac Reactor And Dc Reactor

There are significant differences between AC Reactors and DC reactors in many aspects. The following are the main differences:

Different application circuits:

AC reactors are used in AC circuits and are usually divided into three-phase and single-phase types.

DC reactors are used in DC system circuits and are only available in single-phase form.

Different main functions:

The main functions of AC reactors include reducing main power supply harmonics, surges and peak currents, improving low-frequency conduction interference resistance, and protecting the power electronic components of the drive mechanism.

DC reactors are mainly used 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, and improve the power factor of the inverter.

Different working principles:

In AC circuits, AC reactors are generally used for phase shifting or filtering and voltage division, and have a small inductance.

In DC circuits, DC reactors are mainly used to stabilize current, with a large number of windings and a large inductance.

Different scope of use:

AC reactors are widely used in AC circuits such as household and industrial power.

DC reactors are mainly used in DC circuits, such as batteries and motors.

Cost and voltage drop:

When the same level of harmonic reduction is achieved, the cost of using DC reactors is lower than that of using AC reactors, and the voltage drop loss is also smaller.

In summary, there are obvious differences between AC reactors and DC reactors in terms of application circuits, main functions, working principles, scope of use, cost and voltage drop.