Turbine distributor with wicket gate braking device

摘要

This turbine distributor (100) comprises a gate operating ring (14), a set of wicket gates (16) designed to be oriented by the gate operating ring, and a set of assemblies (180) for connecting the wicket gates to the gate operating ring, wherein each connecting assembly (180) comprises a breaking member (22), the breaking member (22) being designed to break and thus separate the associated wicket gate (16) from the gate operating ring (14) in the event of excessive loads. It is characterized in that each connecting assembly (180) comprises a device (36) for braking the motion of the associated wicket gate (16) should the wicket gate separate from the gate operating ring (14). Specifically for use in Francis turbines.