The intelligent capacitor controller (hereinafter referred to as the controller) is a new generation of low-voltage reactive power compensation controller designed and developed based on relevant national technical standards, regulations, and user actual requirements, using dedicated power parameter acquisition chips and MCU processors. The product has a beautiful and elegant appearance, and is easy to install and use. It achieves human-machine dialogue through digital tube display and buttons. Connect with intelligent integrated power capacitors through 485 communication. Controlling physical quantities includes voltage, current, and power factors. Adopting AC sampling technology. Especially suitable for situations with large power factor fluctuations. Fewer actions and higher control accuracy.