induction motor problem

[snake]

here is the motor pic,i am confusing between a 2 pole and 4 pole motor.can someone tell me how many poles does the motor have and how many magnets i should put an in what order.thanks

the rpm is below 1700,its a 50hz motor with 8 coils.there are 4 wires coming out from the motor 2 wires for 1 set of 4 coils and 2 other wires for the other 4 set of coils.

thanks for your help

[ghurd]

The 4 coils of one set are at N, E, S, W?

That is a 4 pole motor.

G-

[snake]

yes,its like this and the other set of coils are like N-E,N-W,S-E AND S-W.how many magnets i need to place and in what order if it a 4 pole motor.thanks

[ghurd]

Just 4 magnets.

Order? N, S, N, S.

It will look like this.  Notice these magnets have the N market from the factory.

http://www.otherpower.com/images/scimages/2050/FanArm.jpg

Naturally, it is possible to use groups of magnets to make what is shown as one magnet.

It will be 2 single phase alternators in one container.

Both pairs of output wires will go to their own bridge rectifier.

If the voltage:RPM is too high when finished, the 4 coils can be separated in half and reconnected in parallel.

That's all there is to it.  Pretty simple.

G-

[snake]

thanks ghurd but there is something which i want to know,all the coils are concentric ones.does these concentric coils have any effect on the power output or other effect?

[ghurd]

Nothing I can tell...

The outer coil will have more resistance than the inner coil, therefore more resistance.

The shallow slots help, therefore it should sort of balance out.

There is nothing you can do about it anyway, short of a rewind.

If you want to do a rewind, better off starting with a 3-ph motor.

Better off starting with the same RPM 3-ph anyway, but I use what I can find.

The only real cost is 4 neo magnets and 2 (reusable) bridges,

maybe some heat shrink tubing, JB Weld, string and fingernail polish?

So I just try it and see what happens.

G-

[snake]

ok,thanks lots ghurd

[ghurd]

I would do it.

But I did a lot worse.

Admin:

Testing. Testing. Is this thing on?

Seems to be operating at a high rate of speed!  

G-

[RogerAS]

Could this motor not be Jerry rigged for 4 single phase single coils?

If it ran at 110V the coils when isolated will still reach nominal battery voltages with the same 4 magents, or am I mistaken?

RS

[ghurd]

It could on paper, and maybe one coil set in real life.

It would work fine IF the wires could be reached.

Usually one coil set covers up the other.

And the 50hz means 220V, so thats a lot of fairly tiny wires.

It would put out a lot more amps at 12V if it could be done.

Sounds like my luck getting them separated with small gauge wire has not been so good?

Correct.

G-