Magnetic Gears are the new Attraction to Wind Energy harvesting

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Bad things can happen when the mechanical gearbox in a megawatt-scale wind turbine gets overstressed. An unexpected wind gust can drive turbine blades hard, so hard that the torque on the gearbox they’re connected to exceeds design parameters. The result: A multiton gearbox that must be detached and brought down with a construction crane for repairs. The whole operation is expensive and puts the wind turbine out of commission for days or weeks.
No wonder, then, that wind-turbine makers are interested in ways of capturing wind energy without the need for mechanical gearboxes. One solution now getting a lot of attention is magnetic gearing.
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