The utility model is mainly used for vacuum drying and vacuum oiling of large power transformers of 110- + 1000KV grade. The utility model is also suitable for the vacuum smelting of the air and other non condensable and non corrosive gases, the electric power capacitor, the transformer, the vacuum impregnation treatment, the pre pumping in the vacuum coating equipment, etc..

1. It uses imported top brand vacuum pump and booster roots pump to form the two stage or multi-stage vacuum system, which has the characteristics of quick start, large pumping speed, stable operation, simple operation and so on.

2. This device is equipped with the high precision digital display vacuum gauge, vacuum degree intelligent setting, in order to accurately observe in real time, control the vacuum degree.

3. It is fully automatic operation, vacuum pump and roots pump chain control, automatic overload protection, unattended.

4. It can be set according to customer requirements GIS interface, user-friendly settings, low noise, low energy consumption and cost savings.

5. Set up air cooled condenser system, water vapor condensation separation, to prevent water vapor into the vacuum pump vacuum pump oil, vacuum pump, vacuum pump to improve the service life.

6. Power off vacuum protection and mechanical reverse oil (vacuum pump oil) and shutdown vacuum protection system.