... focus compensation of electrical power system, to increase of power factor, adjust network pressure, reduce loss of distribution system and transformer ... stepdown substation 3kV,6kV,10kV bus-bar, to raise power factor of the whole substation, making balanced for the substation power ... AOverall reference dimension H×A×B(mm)Installation reference dimensiona x b x c(mm)1WBB1-6.6-50504.371700×750×800 ...