Gilkes has been awarded the SSE contract for supply of turbine, generator and control system packages to operate on the compensation flows of three existing power stations.
Gilkes will be supplying a Turgo turbine and Pelton turbine respectively for the Lussa & Nostie Bridge schemes. In wanting to provide a robust but simple system for SSE, Gilkes have taken inspiration from a historical idea; manual actuation! Both turbines will be fitted with manual spear valves that will be set during commissioning to pass the required compensation flows at minimum head. Manual actuation reduces the system complexity requiring minimal intervention from station operators. Both turbines will be fitted with a deflector system that will engage in a failsafe manner in the event of load rejection. This will allow for an uninterrupted flow through the system whilst protecting the rotating assembly of the turbine.
The compensation turbine for the 3rd scheme at Truim will be a Francis turbine of standard design that will be paired with a synchronised bypass line. In the event of a load rejection, the Gilkes supplied control system will send a signal for the bypass line to open in failsafe manner to ensure that the compensation flows are maintained whilst the turbine is put through a controlled shut down sequence.
Gilkes have been supplying hydroelectric turbines to SSE since 1948, with over 25 turbines installed on their sites. This is testament to the long history of Gilkes designed turbines being installed across Scotland. With the continuing need for renewable power generation Gilkes look forward to continuing their strong relationship with SSE.