Lattice tower and an erection method for a wind turbine with a lattice tower
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United States of America Patent
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Nov 5, 2013
Grant Date -
Apr 8, 2010
app pub date -
Mar 26, 2008
filing date -
Mar 29, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of erecting a wind turbine comprising the following steps: Providing the hub (9), the blades (11), the nacelle (13) and a lattice tower (15) comprising first and second sections (21, 27) pivotally connected along an axis (17) at a height H, in which the tower lower part, below height H, is composed by the second section (27), including the tower lower and upper legs (31, 33) and a first part (23) of the first section (21) and in which the tower upper part, above height H, is composed by a second part (25) of the first section (21). Assembling on ground the wind turbine, with the nacelle (13) resting on a carrier (19). Raising the second section (27) and fixing the upper legs (33) to second foundation corners (43). Raising the first section (21) and fixing its first part (23) to the second section (27).
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