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Forum Index : Windmills : can i get some data on model 80 ,42 pole

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windman1000
Regular Member

Joined: 21/06/2009
Location: United States
Posts: 91

Posted: 01:35am 10 Nov 2009

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Hi Guys
Im Thinking on getting a model 80 , 42 pole stator and would like to know if anyone has any data on rpm volts amps for a 12 volt system without the cap doubler.

min rpm aprox 13.5 or more volts what amps?
max rpm volts and amps.

this data needs to be charging data not open volts and shorted amps.

how was your stator wired?
what rotor was used?

Thank
Windman1000

carl1
Regular Member

Joined: 16/04/2007
Location: Australia
Posts: 79

Posted: 05:24am 10 Nov 2009

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some of my post have actual charging data without caps:
http://www.thebackshed.com/windmill/FORUM1/forum_posts.asp?T ID=558&KW=carl1
http://www.thebackshed.com/windmill/FORUM1/forum_posts.asp?T ID=1838&KW=carl1

I am using 3 F&P 80 on my boat, two for prop shaft alternator and one for wind.

Harald

Ps: check my other postings

windman1000
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Joined: 21/06/2009
Location: United States
Posts: 91

Posted: 01:52pm 10 Nov 2009

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carl1
Thanks for the reply . but the links pop me back to the main forum page, maybe im doing something wrong.
windman1000

carl1
Regular Member

Joined: 16/04/2007
Location: Australia
Posts: 79

Posted: 09:12pm 10 Nov 2009

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go to " search ", you should fine the posts under my name.
Harald

Jarbar
Senior Member

Joined: 03/02/2008
Location: Australia
Posts: 225

Posted: 09:52pm 10 Nov 2009

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Windman,
You will find an extra space inserted between the TID (T ID)after copying and pasting just remove the space.

Anthony.

"Creativity is detirmined by the way you hold your tounge".My Father
"Your generation will have to correct the problems made by mine".My Grandfather.

Dinges
Senior Member

Joined: 04/01/2008
Location: Albania
Posts: 510

Posted: 11:06pm 10 Nov 2009

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Harald, why don't you make clickable links?

You could use either the 'add hyperlink' function when posting a reply (

), or if you insist on manually adding links into the text (what I normally do), type

which turns it into a clickable link. (with 'link' being your html address, www.thebackshed.com/blahblahblah)

It makes life so much easier for the rest of the users.

http://www.thebackshed.com/windmill/FORUM1/forum_posts.asp?T ID=558&KW=carl1

http://www.thebackshed.com/windmill/FORUM1/forum_posts.asp?T ID=1838&KW=carl1

Peter.Edited by Dinges 2009-11-12

carl1
Regular Member

Joined: 16/04/2007
Location: Australia
Posts: 79

Posted: 01:40am 11 Nov 2009

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Thank's Peter

Now I know

Harald

windman1000
Regular Member

Joined: 21/06/2009
Location: United States
Posts: 91

Posted: 02:31am 11 Nov 2009

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Thanks Jarbar,Dinges,carl1
I was hoping to see better volts/amps at low rpms, im going to gohead and buy a model 80 42pole and run some test and rewire diff ways.

what im looking for is about 60 rpms and a few amps
on up to about 300 rpms, after that my other motor would kick in for more amps.

with my 3:1 im turning aprox 60 rpms at 3 mph wind and my other motor doesnt cutin until 10 mph wind 200 rpms.

And I hate watching my blades turning and no power.

I will mount the model 80 on pulley side.

3:1 setup Link

GWatPE

Senior Member

Joined: 01/09/2006
Location: Australia
Posts: 2127

Posted: 03:48am 11 Nov 2009

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windman1000 said what im looking for is about 60 rpms and a few amps on up to about 300 rpms, after that my other motor would kick in for more amps.

Hi windman1000,

You are expecting too much. You want a few amps [probably 2] at 60 rpm. This is 12V system, so approx 25W. At double the windspeed, would equate to double the rpm, [120rpm], and should be 8 times the current, so 10-16A, [120-180W]. Double the windspeed again, should give 240RPM, for 8X more current, or 80A to 120A, [960-1440W]. You aren't up to 300RPM yet.

An optimum loading will give the cubic power to a doubling of windspeed. I expect that you should be looking at 1-2W at the 60RPM, unless you have a 4m+ rotor.

The lack of power in the wind at low windspeeds to some is disappointing. One windmill should be able to be made to work in light and strong winds. Make both the same and get double the power across all the windspeeds.

Gordon.

become more energy aware

windman1000
Regular Member

Joined: 21/06/2009
Location: United States
Posts: 91

Posted: 06:42am 11 Nov 2009

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This is a motor i was testing a while ago and i gave to my dad,it had very little cogging if any, i can buy the same for 50.00 , but i figured going from a 36 pole to a 42 pole i could gain a amp or two at the low rpms.

p/n 04ca44448
e21 5786 ss-130
ins class b cont
mb 4oc

model pom1300
dc 310v 094hp 5.5a 1200rpm
newmotech co ltd
2009.01.02 11:30:29

GWatPE

Senior Member

Joined: 01/09/2006
Location: Australia
Posts: 2127

Posted: 08:06am 11 Nov 2009

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Hi windman1000,

A typical iron cored alternator has an unloaded output voltage approx double the loaded voltage. This means that with the correct loading, that alternator should be able to produce about 600W at 460RPM.

This means that as a windmill, the loading should be approx 80W at 250rpm and 10W at 120rpm and approx 1W at 60rpm.

This is possible with a rewire and the magic of caps. This alternator should produce approx 50A into a 12V battery setup at 460rpm. This setup is calling out for a rewire. Reactance limiting is cruel, unless you don't need the power.

Were the figs above taken from lathe testing?

The unit looks like an LG.

Gordon.

become more energy aware

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