Slowing and halting an 80-m rotor involves converting its kinetic energy into heat. Of course, there are several design decisions here. Rotor brakes control overspeed, and provide parking and emergency braking. These brakes can mount on the rotor (low-speed shaft) on the generator (high-speed shaft), and both shafts in some cases. Low-speed-shaft braking is relatively…

A full array of caliper designs is available from Twiflex, Ltd. to meet the yaw braking-force requirements of any size wind turbine. All brake models are durable, hydraulically activated, and direct applied. Models T20 and T40 deliver up to 40 kN braking force, feature two-bolt side mounting, and are intended for light to medium-duty applications.…

Twiflex brakes are fully assembled, provide high levels of reliability, easy electronic monitoring and maintenance, and come with organic or metallic linings. Friction liners are sized to ensure adequate heat dissipation during an emergency stop and with an even pressure distribution across pad surfaces. The brakes come in a range of braking forces from 100…