Low voltage wattless automatic control system

An embodiment of the present utility model discloses a low voltage wattless automatic control system to solve problems of the prior art that a controller easily goes wrong and a low voltage capacitor cannot work normally. The low voltage wattless automatic control system comprises a plurality of low voltage capacitors which are connected, each low voltage capacitor comprises an outer shell, a switching controller arranged inside the outer shell, and a communicated module connected with the controller. In the low voltage wattless automatic control system, each low voltage capacitor is provided with a switching controller inside, thus when reactive compensation is carried out by the low voltage wattless automatic control system, no controller is additionally adopted, switching information can be exchanged through communication between the low voltage capacitors, and switching control of each low voltage capacitor can be realized.