SYSTEM FOR TWISTING CABLES IN A WIND TURBINE TOWER
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United States of America Patent
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Issued Date -
Aug 7, 2014
app pub date -
Nov 27, 2013
filing date -
Dec 6, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a wind turbine having a wind turbine tower and a nacelle provided on top of the tower to which a rotor hub with one or more wind turbine blades is rotatably mounted. A cable twisting system is arranged inside the tower and suspended from the bottom of the nacelle. The cable twisting system comprises cable spacing plates coupled to a suspension element. Guiding means guide the electrical cables from the nacelle to the bottom of the tower. The suspension element is a torsion element having a first end capable of twisting relative to a second end when torque is applied to the first end therefore allowing individual cable spacing plates to be rotated in a more uniform manner when the nacelle is yawing. This also allows upwards movement of the cable spacing plates caused by the applied torque to start at the uppermost cable spacing plate.
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