Chancy-Pougny : renewal of the control system

Until 2014, we shall be contributing to the renewal of the Control System at the Chancy-Pougny (on the French-Swiss frontier) which was brought into service in 1925. The SFMCP (Société des Forces Motrices de Chancy-Pougny) foresees an improvement of the present capacity of the turbines from 500 m3/s to 620 m3/s.

This increase will take place with a progressive exchange of Francis turbines, which have fixed blades, for Kaplan turbines, with their more efficient mobile blades (supplier: Andritz Hydro). Eventually, the power installed will reach 50 MW and the annual average producibility to 245 GWh.

The first phase of the works, begun in 2003 with the replacement of groups 1 and 2, was completed in October 2006 and May 2008 respectively.

Our participation in the following stages of this project are within the framework of the renewal of the Control System of groups 3 and 4. Our team, represented by engineers from the telematic unit, is presently at the study stage and the first phase of accomplishment related to the computerizing of the different component systems at the power station.

The new equipment will be integrated into the SCADA (Supervisory Control and Data Acquisition) system used by the operator for the supervision of the present and future equipment.

KEY DATES OF THE PROJECT :

• Start of the disassembly of the existing group 3 : 20.09.2010
• Provisional reception of the renewed group 3 : 14.05.2012
• Start of the disassembly of the existing group 4 : 19.09.2012
• Provisional reception of the renewed group 4 : 15.05.2014

TECHNICAL CHARACTERISTICS :

• Power : 12 MW
• Head : 11,4 m
• Speed : 88,24 tr/min
• Diameter of the wheel : 4’800 mm