Hydro & Wind Generators
On shore and off shore wind turbines require the installation of high speed shaft rotor brakes, whose function is primarily to stop the residual rotor spinning, after the main stopping function is activated by the blades pitching control. Single spring hydraulic brakes, with floating callipers installation, are generally used to stop the 20-25% residual rotor speed.
The safety of the nacelle, during the wind orientation process, is guaranteed by the application of a hydraulic positive brake calliper to the yawing system.
Passive resilient mounts systems isolate the drivetrain from structural borne noise transmission that could be highly detrimental for the nacelle structure and the connected turbine pole.
Large horizontal or vertical hydro turbines require service brakes to reduce the stopping time of their rotational motion, due to the high inertia they have.
For this purpose, either pneumatic or hydraulic activated brakes are installed onto the perimeter of the turbine.
Horizontal turbines generally require the brakes to have a double function: to stop the spinning of the turbine and to jack the turbine for servicing operations. For these purposes the same calliper is then activated pneumatically for service brake function, while hydraulically for jacking conditions.
Resilient mounts For Structural Borne Noise Isolation
Service and parking brakes
Torsional Flexible Couplings For High Speed Shaft Application