The blades of a modern wind turbine typically spin at a rate of 10 to 20 revolutions per minute (RPM), with specific speeds varying significantly depending on the turbine's design, size, and, most importantly, wind conditions. Tip speed is the speed at which the tip of the blade is actually moving. However, the average speed of the rotor can be much lower if the wind speed isn't, increasing the turning velocity from 13-20 rpm to 1500- 1800 rpm. The gearbox. . This speed is recorded in RPMs, or 'revolutions per minute. Wind turbines are remarkable feats of engineering, converting the. .
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