800w 400 rpm 60 hz 120v permanent generator

[TommeyLReed]

This is a super low rpm with 18 fields and 18 permanent magnet rotor test run.


http://www.youtube.com/watch?v=XjM3qZViLT4

[Magluvin]

Nice gen Tommy.

Good voltage for 400 rpm. And amperage to boot.

Any specs on the build?

Mags

[e2matrix]

Looks like you could try looping that rectified DC output back to the drill motor battery .... although I suspect that drill motor with it's gearing is very inefficient so maybe a better low rpm dc motor running off a battery.   What kind of motor is that you modified? 

[TommeyLReed]

That was a old 3/4 hp ac motor, I still have the end caps with bearing. I had another person ask me to try the same thing. 60 rpm's would need greater then 5252/400=13.13 ft lb due to mechanical losses to make 1hp(746w).  In other words if 1kw need 2 mechanical hp for gasoline engine and 1.5 for diesels. Then you could produce 1kw on a single gallon of fuel for over 8hr at idle speed of 800 rpms, and gear the engine pulley down to 400 rpm's for the generator.  I am putting a system together to get off the grid, and to tell the greedy poweer companies to take their high rates and taxes to pound sand. I will also use solar to recharge the battery pack also.

[MarkE]

I would place a good quality charge controller between the rectifier and the battery bank.  Otherwise it looks pretty robust.