What is the role of capacitors in the circuit

1. Capacitors are mainly used in AC circuits and pulse circuits, and in DC circuits, capacitors generally play a role in isolating DC.

2. Capacitors neither produce nor consume energy, and are energy storage elements.

3. Capacitors in the power system is to improve the power factor of the important devices; in electronic circuits is to obtain the oscillation, filtering, phase shift, bypass, coupling and other roles of the main components.

4. Because the loads used in industry are mainly motor inductive loads, so the capacitive loads and capacitors in order to make the grid balance.