Electricity generator and an installation comprising a lighting tower powered by such a generator
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United States of America Patent
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Nov 23, 2010
Grant Date -
Mar 5, 2009
app pub date -
Jul 31, 2008
filing date -
Aug 6, 2007
priority date (Note) -
Expired
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Abstract
The present invention provides an electricity generator for a lighting tower having a plurality of discharge lamps, each lamp being of power greater than 750 W, the generator being arranged to be driven by an engine, the generator being a multiphase generator having n phases, where n is an even integer, each phase being independent in a magnetic circuit that is common to all of the phases and being configured to power one lamp, the generator comprising a rotor with permanent magnets, having 3 n poles, and a stator concentric with the rotor and subjected to the radial magnetic flux from the magnets, the stator comprising a stack of laminations of silicon iron having a silicon content greater than 0.5% and of individual thickness greater than 0.35 mm, defining 4 n magnetic circuit teeth, with every other tooth carrying a winding.
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