6 piece regulating transformers 40MVA ONAN (50MVA ONAF) 110//10/20kV
- Publication no.
- 42084-03
- Published on
- Procedure
- Open procedure
Description
Delivery, installation, and commissioning of six regulating transformers: OS 110kV, US switchable from 10kV to 20kV, with an apparent power of 40MVA (ONAN) and 50MVA (ONAF). The OS and US windings are rated for a continuous load of 50MVA. Operation without active cooling is permitted up to 40MVA; above 40MVA, the regulating transformer must automatically engage forced cooling.
Intended Use
Regulating transformer with compensating winding
Operating Mode
Continuous Operation
Design
Power transformer with tap changer on the primary side, switchable from 10kV to 20kV undervoltage
Construction
Oil-filled transformer with air passages on the OS and US sides for outdoor or indoor installations, and road-transportable for delivery
Expected Service Life
60 years
| Contracting authority | Stadt St.Gallen, Stadtwerke |
|---|---|
| Location | St.Gallen |
| Canton | St. Gallen |
| Contract type | Services contract |
| CPV | 51111300 Installation services of transformers |
| Covered by international treaties | Yes |