2 HP 3 Phase For Induction Conversion

[coldspot]

Trying to please the wind gods

I'll kill this motor and try to made a gen out of it !

























36 slot's

About # 19 or 20 size wire inside

Mount bracket is stamped but welded on not just spot welded.

More to come after more is done and # 29's that were shipped to me

last saturday get here,

[zubbly]

hi coldspot!

you got one of my favourite motors that i like to convert. just a note, when you turn down the rotor (if you plan to use 3/8 thick mags) the laminations will fall apart because you end up turning through the depth of the aluminum bars which hold it together. the depth of the aluminum bars in the rotors of baldor motors is not very deep. using the #29's should be fine as they are 1/4 inch thick.

i can see from the photo that the laminations on the rotor are 3 inches long. i think the #29 mags are 1 3/4 inches long. you could use 2 per pole (in line with each other) and just divide up the  excess evenly on both of the aluminum end rings.

cogging will be an issue with the mags as they are not skewed and the stator laminations are not skewed either. i suggest you try an offset in the alignement of the 2 mags per pole by approx the width of half a stator tooth. you may have to try slightly less or more and check for cogging after each different position.

be extremely carefull when insering the rotor and do not put yourself in the position of having a finger in the way of the rotor going in. the rotor goes in with lightning speed and terrible force. i suggest drilling and tapping a 5/16 hole in the end of the shaft. it will be good for mounting a cross bar to assist with insering and removing the rotor and also for mounting the prop to the shaft.

good luck and let us know the results!

zubbly

[coldspot]

Thanks "Mr. Zubbly", (In honor of Bob)

So I should use two per pole of the magnets, good thing I ordered 8

But, to bad for the little stuff I was going to use them for, lol.

The magnets might get here today, (wishful thinking again).

Yea, I know all about getting fingers between BIG Neo's,

I found some big ones in a old HD a year or so ago, (1/2"X1"X1/2" trapzoid shape)

Those four magnets caused a bunch of ROFLMAO when letting friends see the power of

Neo's, just wish I hadn't lost one somehow when helping girlfriend buy new dishwasher

and moving it in house and old one out, I was using one as a clip for a miniMag

flashlight sheath and it got sucked off of me somewhere and I could never find it,

( I'm pretty sure the handtruck at the store the she bought it at got it).

Do you have any kind of idea as to what size prop this will require?

Also, will my 25 amp charge controller be enough or should I plan on saving

up and getting the "expandable high amperage" add on's? (60A, 75A or 100A)

My current controller is 12 VDC 25A

"FlexCharge NC25A-12"

[coldspot]

A big THANK YOU to

nothingtolose

The #29's showed up a moment ago !!!



The fun has begun !!!

now that I'll be using these on this motor I'll be needing some more of course

While researching info around this site, I saw something about him being gone for a while this spring/summer.

I just hope he has something arranged for us to be able to still order #29's

while he is away.

Again-

THANK YOU!!!!!!!!!!!!



l8r

[zubbly]

hey coldspot! (again)  

you can use smaller mags if you wish.  3/4 wide by 1/4 thick would work.

prop size will be determined with lathe or motor driven load of batteries. but for an idea, i will use my 1.5hp conversion (U>S> ELECTRIC) as an example. it also has a similar stator size.

i have seen it produce just slightly above 2kw at times (perhaps 50mph wind plus)

it now runs with an 8 foot 3 blade tsr-7 from alton moore's blade calculator.  used in the star mode, it produces at very low speeds but stalls in the worst way having a very hard time to reach 7-10 amp on a 24 volt system.

a few months ago, i made a vacumm controled star/delta switch. it works very good and changes over to delta when the wind starts blowing good. often see 40-50 amp in the delta mode.

the prop is a little small for my wind conditions, and should have been 9-9.5 feet diam. depending how much mag you can stuff on that rotor, a ball park guess would be a prop in the same area of 9-9.5 foot diam.

zubbly

[coldspot]

Again-

Thank you "Mr. Zubbly"

I'll probebly be using these #29's

I'm trying to get a price on the expanding charge contactor

for my NC25A-12 so I can handle the Amps

I kind of figured that a 8'-10' prop would be needed

That will be a learning experience to say the least

being my first carved one, (can't really count the "Trim Blades"

as carving because I only had to round the leading edge, lol)

Also, should be able to get to her cabin this weekend, (Her brother

plowed out the road two week ends ago and did go back up last saturday night

after the wedding saturday evening).

So now I'll be able to pick the poor tree that I'll have to convert to a

tower and maybe even get out the climbing spikes and start out with dragging

a power line up with me, (and saw of course) I figure the power line could

also be used as a power line up for the 12 VDC winch I plan on using to help

drag stuff up the tree to make it all easyer for me. LOL

Of course the first mill to be put up will be just the Ametek or maybe the CMI.

Then again I know I'll be taking up my bow's so maybe it will just be a fun

weekend instead!

Thanks

[jlt]

Hi coldspot I also got a 2hp 3 phaze moter to convert so please keep me informed about your proggress. i think that i am going to use 5/8=3/8 round mags on mine. i plan to turn down the roter and then wrap fiberglass cloth around it until it builds back to the diameter it was .and then true it up on a lathe. mark out the locations and drill it until i reach metal.and then drop mags in the holes.not sure how to get bottom of the hole square yet. found the mags for 50 cents each.seemed like it would cheaper. than #29mags. how much did you have to give.

[coldspot]

jlt-

nothingtolose

has them for $8

each

plus shipping

$10

Worth it I'd think

[drdongle]

Coldspot, how is this conversion coming along. Seems that I picked up the brother to this motor yesterday. I haven't opened it yet but was hoping to get some feedback on your conversion and the use of #29's,I have some from NTL but want to hold off till I hear how YOUR's turns out!

[coldspot]

Dr.D-

Nothing done yet

just home from cabin, snowed all weekend,

But was nice to get out of town!!!:)

This conversion will have to wait a bit,

will be easy cause only needing to turn down the old arm.

My local brother bought a lath but, I've yet to see it or play on it,

More to come as time lets get done.

l8r

[coldspot]

Did get to machine shop today and now have rotor ready for magnet glue





On the right is Baldor one.

Hate to waist trip to lathe,

so we got an extra 2HP 3 Phase done while there.

The one on the left

l8r

[drdongle]

Are you using the same arc magnets on both?

[coldspot]

Dr.D-

I'll probebly be using the #29's

on bolth

If I can get enough money to order more

(getting paid for last couple jobs that is, lol)

But, job I've been waiting on since Jan has finally

busted loose, should start next week if not sooner.

Now just to start on some blades,

get over the fear and just start cutting some wood up.

A lot harder than it sounds, the gen end is easy for me to work on,

in my lap then easy to clean up after. But, the wood work will not be so

easy, (no shop or even a garage to play in). lol