Rehabilitation of Power Plants Castasegna & Löbbia
Renewal of Castasegna HPP & Löbbia PSPP in Switzerland

Description of project:
- Building renewal (transformer bays, cable ducts, false floor, structural fire protection)
- 4 x 220 kV air insulated switchgear bays (Löbbia)
- 18 x 12 kV air insulated generator switchgear bays
- 40 x 12 kV air insulated switchgear bays
- 220 kV cable connections
- 12 kV cable connections
- Generator bus ducts, transformer bus ducts
- 4 sets of 10 MVA current limiting inductors 12kV
- 7 units of 55/3 MVA single-phase GSU transformer 12/220 kV
- 2 units of 78 MVA three-phase GSU transformer 12/220 kV
- 2 units of 6 MVA three-phase regulation transformer 12/12 kV
- Container with interim switchgear 12 kV
- HVAC for Castasegna underground plant with extended fire protection and heat recovery system
ÅF's services:
- Project Management
- Tendering, Evaluation, Contracts
- Detail Design
- Design Approval
- Site Supervision
- Monitoring Schedule of performance
- Commissioning
- Project Accounting