A capacitor bank is a group of capacitors connected together to store and release electrical energy. They are commonly used in electrical systems to improve power factor, which helps reduce energy losses and enhances the efficiency of power distribution. By providing reactive power, capacitor banks support the operation of inductive loads like motors and transformers. These banks can be found in various applications, including industrial plants and utility companies. They help stabilize voltage levels and reduce the risk of voltage fluctuations. Capacitor banks are essential for maintaining the reliability of electrical systems and ensuring that equipment operates smoothly.