BV Vacuum Unit
BV Series Vacuum Systems
Application
Vacuum Pump Units of the BV series are designed for puling vacuum on the transformer tank. The high vacuum ensures that all air pockets are removed from the paper insulation so that the dielectric insulting oil penetrates all of the paper insulation, creating a better dielectric-insulating environment. Vacuum Pump Units can also be used together with Oil Purification Units and High Vacuum Degasifiers during installation or retro filling of transformers.
Description
The BV-2 is a double stage Vacuum System consisting of a Vacuum Pump, a Vacuum Booster, pipes, connections and a control panel.
Vacuum Pump: Rotary vane positive displacement pump.
Vacuum Booster: Rotary-piston pump.
A Vacuum Pump is used to create rough vacuum and Vacuum Booster creates high vacuum.
Such combination of pumps and booster ensures a high production vacuum capacity allowing to reach ultimate pressure of 0.001 mbar.
| No. | Parameter | Value |
| 1 | Suction capacity, m3/h (gpm) | 3,000 (13,208) |
| 2 | Ultimate vacuum, mmHg (Tоrr) | 0.01 |
| 3 | Pumped medium | Air |
| 4 | Power supply: | |
| Phases | 3 | |
| Voltage, V | As required | |
| AC frequency, Hz | As required | |
| Maximum power consumption, kW | 14 | |
| 5 | Ambient temperature, oС (oF) | 5 -40 (41-104) |
| 6 | Inlet/outlet connection type |
Flanged/ flanged |
| 7 | Inlet/outlet diameter, Dn, mm | DN100/ DN65 |
| 8 | Dimensions, mm (in) | |
| Length | 1,600 (63) | |
| Width | 1,200 (47.2) | |
| Height | 1,600 (63) | |
| 9 | Weight, kg (lbs) | 900 (1,984) |
- Fast removal of air, vapor, non-aggressive gasses and vapour-gas mixtures due to a booster;
- Units can be used for servicing and exploitation of oil filled transformers and high voltage switches up to 1150 kV of voltage;
- Evacuation of a high level.