Intelligent capacitor bank is a reduced version of TSC/MSC complete set device. It has small and beautiful appearance, small single capacity, suitable for occasions with low demand capacity and narrow installation space. It can also be arranged in cabinets with multiple groups of intelligent capacitors, beautiful and neat, convenient installation and simple wiring. Intelligent capacitor integrates advanced industrial technology and industrial appearance design art such as modern measurement and control, power electronics, network communication and automatic control, with smaller size and lower power consumption, convenient maintenance and long service life.