Reactive Power Control is a technique used in electrical systems to manage the flow of reactive power, which is essential for maintaining voltage levels and ensuring the stability of the power grid. Reactive power does not perform any useful work but is necessary for the operation of inductive devices like motors and transformers. By controlling reactive power, utilities can improve the efficiency and reliability of electricity distribution. This control is often achieved through devices such as capacitors and reactors, which can either supply or absorb reactive power as needed. Effective reactive power management helps prevent voltage fluctuations and reduces losses in the transmission system, ultimately leading to a more stable and efficient power supply.