amtek d.c. motor identification

[(unknown)]

hello,I bought a amtek motor on ebay and seller wasent sure about size,He thought it maybe a 60 vdc model.I put on a 600 rpm drill and got 23 volts and on a 2700 rpm drill got 80 vdc both with no loads on. the motor weighs 9.5 lbs has the these markings"2517838EC734408   dec74.

would this motor work ok for a 48 volt battery string ot should I look for a higher volt model for a wind generator? thank you kindly for any help.

[hayfarmer]

also want to add the size,its 4 inch dia by 6 1/4 inches long.

[dnix71]

Unless you gear it up I don't see running a mill at 1500rpm to get usable voltage out of that motor.

Open circuit voltage doesn't tell you how much power you will get anyway. You need to hook it up to a load and spin it.

If you had a 12v system that motor might work.

[Flux]

Agreed. Without gearing you can only get sensible results at 12v. These things are really starter projects, I can't see that you can justify the cost of a 48v battery if this is your only charging source. If it is to help solar then such a tiny project might be justified but I doubt that you will find a suitable scrap dc motor for direct drive at 48v.

Flux

[ghurd]

Maybe a 180VDC motor?

With a 1750RPM, should hit cut in at about 500RPM.  Pretty fast.

Need to limit the amps to about what the name plate says.  180V motors are not generally rated for many amps.  A 1 HP is rated maybe 5 or 6A.

G-

[hayfarmer]

thank you all for comments,was adding to solar imput,I think I will go with a small

air breeze or hurricane 500.didnt want up set the natives only have 3 acres to play with and want to be under the radar.plan to go up at 30 feet with 3 inch pipe. at my home in small sub division,do you think the pipe size is over kill for 3 foot turbine?I have a 25 foot tower on a 2 inch pipe at my farm been doing good for 2 years but its not a tilt down with alot of guy wires.

[tecker]

I started drawing up a relay circuit that could be duped with a  picax Pretty easily .

It involves 3 dpdt relays and zenier s 49 volt 37 volt and 25 volt (you can also work with some resistors and diodes that are close )the zenier should run the coil and the relay coils can be close to the value of the zenier with out too much problem .You could set ghurd's dump load to turn on the three relays ,I'll wrap it up and post .The

lower voltage motor is series to the charged battery and the zenier turns off the lower charge as it turns on the higher voltage charge .  

[taylorp035]

It should be a perfect motor for a 12v windmill, with 4-6ft diameter.  My motor is quite similar (360 rpm at 12 v), only it weighs about 30lbs.  I would be careful about the amps, most likely less than 20.

[ghurd]

I do not believe the Hurricane is available for 48V.

Looks to me like the Breeze is pretty fast.

The output is 160W at 28MPH.  160W on a 48V system is only about 2.75A.

You bought an Ametek, so intended to do some experimenting?

Might do about as well with a 1HP 180V, and enough experimenting.

G-

[Jimmy D]

Hello,

The stronger and taller the better. You may soon be replacing this with something heavier:)

Good luck, Jim