By providing reactive power, how do power factor correction capacitors help in circuits?

Power factor correction capacitors play a vital role in improving the overall efficiency of electrical systems by providing reactive power. When these capacitors are added to a circuit, they help maintain voltage levels by compensating for the lagging power factor typically caused by inductive loads, such as motors and transformers.

When inductive loads draw current, they do so in a way that can cause the voltage to drop, leading to inefficient operation of the electrical system. By supplying reactive power, capacitors reduce the amount of reactive power that the inductive loads need from the supply. This action helps stabilize the voltage in the system, ensuring that equipment operates smoothly and effectively. As a result, power factor correction capacitors are essential for enhancing voltage stability and overall system performance, ultimately leading to energy savings and reduced utility costs.