The JN-E series intelligent capacitors are an independent and complete intelligent compensation unit composed of an intelligent measurement and control unit, a zero switching composite switch, an intelligent protection unit, and two (△ type) or one (Y type) low-voltage self-healing power capacitors. Replace the automatic reactive power compensation device assembled by various decentralized devices such as intelligent reactive power controllers, fuses (or micro interrupts), thyristor composite switches (or contactors), thermal relays, indicator lights, and low-voltage power capacitors. The product can be used as a single unit or as a compensation system composed of multiple networked units; It can be used for three-phase compensation, as well as three-phase and split phase hybrid compensation. Intelligent capacitors integrate advanced technologies such as electronic technology, sensing technology, network technology, and electrical manufacturing, integrating, networking, and intelligentizing traditional reactive power compensation products. The structural mode of the existing low-voltage reactive power automatic compensation equipment has been changed, greatly improving the reliability and service life of the equipment. It has the comprehensive advantages of simple structure, simple production, reduced cost, improved performance, and easy maintenance.