Patent ID: 7872453

Claim:
A customer intelligent reactive power automatic compensation energy-saved device, wherein said energy-saved device includes an intelligent reactive power compensation regulator, a plurality of branch capacitor control contactors, a plurality of capacitor banks and a current transformer; said intelligent reactive power compensation regulator is provided with a sampling current input, a sampling voltage input, an external AC contactor power bus and a plurality of output control lines, said sampling current input is connected to the current transformer, one end of said sampling voltage input is connected to a live wire of a power supply and the other end is connected to a zero phase line of the power supply, said external AC contactor power bus is connected to a live wire of the power supply, said current transformer is ringed around the live wire of the power supply, said output control lines are connected to the branch capacitor control contactors respective, said capacitor banks are connected to the power supply through the branch capacitor control contactors.