Siemens: a generator without transmission mechanism for wind turbines installations

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The company Siemens has developed a new synchronous generator without transmission mechanism for a wind turbine installation on the Norwegian coast, and which possesses a high degree of efficiency of extremely 98%.

The generator converts wind energy into electricity rotor with permanent magnets. The generators are important elements of wind turbines installations.

With standard generators, which convert wind energy using a gear between the slow rotor and the generator faster, there is loss of energy due to friction and the echauffement.

The generator without mechanism of transmission developed by Siemens helps avoid these losses, and in this way the system can operate even at low wind speeds or short bursts.

In addition, this new type of generator requires much less maintenance than traditional generators, which is an important aspect to consider for wind turbines to be built in difficult to access areas (eg offshore).

The installation of the "Hundhammerfjell" (Norwegian coast) is, with a rotor diameter of 87m and a height of 80m, the largest installation in the world equipped with a generator synchronous without mechanism of transmission.

She delivers a power of three megawatts which allows the Scandinavian ScanWind operating company to provide electricity each year of about 3000 Norwegian homes.

Contacts: Dr. Norbert Aschenbrenner - Siemens Technikkommunikation, tel: + 49 89 636 33438, e-mail: norbert.aschenbrenner@siemens.com,

http://www.siemens.de/innovationnews
Depeche IDW, Press Release Siemens 15 / 09 / 2004. Editor: Nicolas Condette

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