The rule of thumb for engine genrators is 2hp / 1kw of electric.

Steve Spence
Dir., Green Trust
http://www.green-trust.org

Contributing Editor
http://www.off-grid.net
http://www.rebelwolf.com/essn.html

Ranjitkar, Ghanashyam wrote:
> 
> Hi,
>  
> With 25hp or 18.65kW motor, it should be possible to generate at least 15kW
> of power in generator mode. 11kW seem very cautious.
>  
>  
> Ghanashyam
> 
> -----Original Message-----
> From: Nando [mailto:[EMAIL PROTECTED]
> Sent: Monday, April 11, 2005 5:41 PM
> To: [email protected]
> Subject: Re: [microhydro] 3 phase motor as generator for net metering and
> then some
> 
> 
> 
> Dave:
> 
> The method described by you is an standard method used to run 3 phase motors
> with single phase, the capacitor is used to generate the quasi-3 phase for
> motor biasing, therefore if used as a Grid Tied Generator the capacitor will
> supply the magnetic field for power generation.
> 
> The KW that can be generated by this motor would be the motor rating divided
> by 1.73,  so if you have a motor that is 25 HP= 18.65 KW, as a single phase
> Grid tied generator, the available power would be 11 KW.
> 
> Regards
> 
> Nando
> 
> ----- Original Message ----- 
> From: "Dave Blaze" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Sunday, April 10, 2005 8:37 AM
> Subject: [microhydro] 3 phase motor as generator for net metering and then
> some
> 
> 
> 
>>
>>
>>Some years ago I met a fellow in Vermont who was generating power
>>and net metering (I think the power company knew about it) He was
>>using a 3 phase motor which had 2 legs tied to the grid and the
>>third leg had some excitation / power factor capacitors on it. He
>>also was using a buck boost transformer on the third leg to control
>>the voltage output and the power factor (so he claimed) I have
>>original drawings showing all this that he submitted to Western Mass
>>Electric many years ago.  His name is Ray Miller and his company was
>>called Harrisville Mill Service. He is mentioned in the book by
>>George Butler and when I visited George before he died, he suggested
>>I go visit Ray since he was only a few miles away. What a day that
>>was!
>>
>>Anyone out there know about Ray or any of his installations, or the
>>use of a three phase motor to generate power for net metering on a
>>single phase system?
>>
>>While I have your attention, I am looking for small home built
>>hydroelectric installations in New England to go look at and
>>photograph. I have found a half dozen or so but I'm sure there are
>>more.
>>
>>Thanks
>>
>>Dave
>>
>>
>>
>>
>>
>>
>>
>>
>>
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