VPS Series Transformer Vacuum Pumping System is widely used in transformer vacuum drying, GIS vacuum drying, transformer installation vacuum drying, etc. Vacuum pumping of power transformer and other electrical vacuum equipment in transformer substation, administration of power supply, power generation plant, and transformer manufactory, etc. VPS is unsuitable for pumping toxic gas, explosive gas, high-oxygen content gas, high-moisture content gas, and the gas which will be reaction to pump oil or cause erosive effect on ferrous metal.