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Semi homemade hydro power | 21 comments (21 topical, editorial)

Re: Semi homemade hydro power (3.00 / 0) (#10)
by Flux on Sat Mar 22nd, 2008 at 02:03:05 AM MST
(User Info)

To use an induction motor as it stands you must run it as a self excited generator with capacitors. You don't have a lot of range with operating speed and you have even less choice with voltage. the only way to charge 12v would be to run the motor near nominal volts and use transformers to step down and rectify at 12v. Possible but you need to know what you are doing.

The other way is to convert the motor by adding permanent magnets ( look at motor conversions here). Again the standard winding will not conveniently lend itself to 12v at the speed you will be running. You will have to do a lot of serious re connecting or go the transformer route again.

If you decide to go the motor conversion route from the start, are you stuck with 12v?

Flux

[ Parent ]

Re: Semi homemade hydro power (3.00 / 0) (#11)
by wdyasq on Sat Mar 22nd, 2008 at 06:42:08 AM MST
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Good advice Flux. With a 4 Pole 3 Phase motor or PM conversion of such a motor would allow transformable frequency current. The higher voltage and alternating of such a device would allow inexpensive transportation of the energy to transformers at the power storage facility.

If a higher than 12V system is selected, wiring costs and losses will be lower. 24V and 48V systems are far more practical than 12V for all but the most primitive electrical systems.

Ron
Adventure is just bad planning." -- Roald Amundsen
[ Parent ]

Semi homemade hydro power | 21 comments (21 topical, 0 editorial)

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