01.gather the power electronics,modern monitoring,network communication,power capacitor technology. 02.Application of compound switch technology for switching , thyristor triggered photoelectric isolation.zero switching,no inrush in the switching process. Switching life more than 300,000 times. 03.The network data line is used between the modules, and the connection is plugged out, which is convenient and reliable. 04.Communicate with intelligent controller upload running state, Running electrical parameters and fault contents on the supporting products of reactive power compensation, It has high security and effective guarantee.