Large Power Hydraulic Spring Driver with Integrated Valve and Cylinder Used in High Voltage Switch

The new large power hydraulic spring driver used in high voltage switch is integrated with hydraulic valve and cylinder. The hydraulic valve is put into cylinder in the rectified structure so as to change all the axial seal to radial seal. Advanced control principle and main configuration make the new hydraulic spring driver many characteristics such as excellent performances, complete functions, reliable operation, good technics and small cubage. Expecialy, the self-protection ability solves the important tecnnique problem.