Bronto Skylift unveils 90m aerial platform

The 90m working height Bronto S-90 HLA is able to drive directly to a turbine and, in a matter of minutes, be fully operational. These capabilities result in faster, safer and more accurate inspection and maintenance of turbine exteriors and blades at a lower cost than other methods currently in use.

The Bronto S-90 HLA machines have been used in Europe for years and have been time-tested in tough conditions. When elevated, they can withstand wind speeds up to 12m/s (25 mph) and they can lift up to 45kg (1000 lbs) of men and materials in an 8 X 3, fully enclosed platform to a 90m (295 ft) maximum working height. Maximum horizontal outreach is 33m (108 ft). Mounted on a 6-axle chassis, the Bronto S-90 HLA machines can navigate most terrain and reach remote tower locations.

With advanced outrigger controls and one-button automatic leveling of the outriggers, from the time the Bronto aerials are driven onto the site they can be positioned, set-up and elevated to the overhead area in 15 to 20 minutes or less.

Encoders Give Turbine Controls More Data

To improve the efficiency of large turbines, many operators have turned to a rather small, 58-mm dia. absolute encoder from Denmark’s Leine&Linde. The Model 500 series of Incremental and absolute encoders provide speed and positioning  feedback to controls in nacelles. Siemens wind turbines, for example, use a pulse encoder on each rotor blade and one to track where the turbine is pointing. The main control system uses position information to optimize generator speed.
Heidenhain Corp
heidenhain.com