TITLE

Wind of change

AUTHOR(S)
Excell, Jon
PUB. DATE
October 2004
SOURCE
Engineer (00137758);10/8/2004, Vol. 293 Issue 7661, p36
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
This article presents information on the way, by which wind turbines generate electricity. In one of the latest advances Norwegian wind turbine manufacturer ScanWind has turned to a design that dispenses with gears and employs the kind of direct-drive technology more readily associated with the factory floor. Most turbines currently use gearboxes to connect the low-speed shaft turned by the rotor to a high-speed shaft, increasing rotational speed of 10-60rpm to the speed required to generate electricity. One of the chief advantages of the direct-drive system, is the low level of maintenance required. With fewer mechanical parts subject to wear and damage and no need for gear oil, the system is ideally suited for use in remote and hard-to-access locations.
ACCESSION #
14781403

 

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