A capacitor bank is a collection of multiple capacitors connected together to store and release electrical energy. These devices are commonly used in electrical systems to improve power factor, stabilize voltage levels, and reduce energy losses. By providing reactive power, capacitor banks help maintain efficient operation in industrial and commercial settings. Capacitor banks can be found in various applications, including power generation, transmission, and distribution systems. They are essential for enhancing the performance of electrical equipment, such as transformers and motors, ensuring that they operate effectively and reliably.