The generator is provided with a mechanical safety brake hydraulically controlled and wired directly on the coupling flange . The brake is “passive ” ; in the case of excess speed of the rotor of a power failure or scheduled maintenance , the brake will automatically go in BRAKE position of safety.
The lightning protection system is made according to IEC 61400-24 . A combination of sliding contacts and cable conductors allows a safe and efficient conduct of the lightning current from the tip of the blade to the ground . All electrical systems , as the control system and the blade pitch , are located within the bearing structure of the turbine steel , ensuring optimal lightning protection .
A trap door openable from the inside of the nacelle allows , in case of need , to descend rapidly to the ground in the double rope through suitable descenders .