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How structurally AC motors differ from DC motors?
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qianshou
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How structurally AC motors differ from DC motors?
18 Oct 2007 00:31
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huyi
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Replying to [qianshou]:I think the simplest solution would be to get a 24V lorry radiator fan motor from a breakers yard and step down the voltage. or go one stage further and power from a photo-voltaic pannel so it works whenever the sunshines and automatically stops at night.
18 Oct 2007 00:42
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yufang
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Replying to [qianshou]:A ceiling fan is an induction motor (brushless, it is quiet). It is also bigger than a brush motor. Most hand power tools use a universal motor, since it is smaller. It has brushes and is noisy. A universal motor actually runs on either AC or DC. You cannot magically change the voltage rating on any motor, though there are many that are dual voltage (for example, either 120V or 240V) depending on how they are hooked up.

The only way to drive an induction motor from DC is to use an inverter (DC to AC converter).
18 Oct 2007 02:26
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chuyitian
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Replying to [qianshou]:rewinding the motor and fixing the commutator, brushes etc is likely to be difficult if not impossible without completly re-building from scratch.
18 Oct 2007 03:02
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