HEPP Gondo - renewal MG 3 / Switzerland
- Replacement of the horizontal axis Pelton turbine with a vertical axis group with increased power
- New synchronous generator suitable for phase shifter operation
- Replacement of the spherical valve with larger diameter
- New, independent tailwater channel for the MG 3
- Installation of a directionally separated diaphragm at the inlet of the water lock to control the transient processes due to increased flow
- Modification of the building roof for the collection of power house components
- New independent cooling water system with emergency supply from penstock
- New protective devices and machinery group controls
Main Data
- Turbine: 1 Pelton, vertical
- Power: 18'680 kW
- Nominal flow: 4.5 m3/s
- Nominal head: 460 m
- Speed: 600 min-1
- Impeller diameter: 1488 mm
- Generator: direct coupling
- Power: 25 MVA
Client
Energie Electrique du Simplon AG, c/o Alpiq SA, Lausanne
Consultant
IM Maggia Engineering Ltd, Locarno
Construction period
2013–2017, commissioning June 2017
Construction costs
CHF 12 Mio.
Scope of services
- Preliminary design
- Construction design
- Call for tender
- Construction design
- Construction and supervision
- Final testing
- Commissioning