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Old 11-06-2009, 10:38 PM   #25 (permalink)
NiHaoMike
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Maybe the motor can be modified to attach to a reduction gearbox? Some disassembly pictures of a large industrial motor can help determine where to drill and tap holes for bolts.

Also note that the HP rating of an industrial motor is a continuous rating with a very large margin. Which means that the HP rating only needs to meet or exceed the cruising HP usage. It will be overloaded during acceleration, but it should not be a problem for a short time. Temperature sensors can be installed if you're worried about overheating from heavy acceleration. Increasing the frequency (and voltage) beyond its design frequency will also increase the speed and effective HP, but I'm not sure how much higher than design it is possible to go. Industrial motors are definitely overbuilt for the HP rating.
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