elec fork lift motors 4 wires?

[adelaide]

can get some  elec fork lift motors ,posbly for wind or elec vecle ,i tryed 12 v jumpstarter pac brifly on 2 of 4 termanals it had just sparks no move ment ? same with outher 2 termanals  on a 24 v and a 48 v motor ? is 1 acting like magnet? and outher the motore? or 2 speeds? are they inafishent or good to put neos in ? (next time their will try shorting termanals together and see if hard to turn = perm magnet? any info apreshiated at gess 1 25kg outher 55kg)

[nanotech]

I would hazard a guess that they are series wound motors, much like the ones for electric cars.

Yes, one set is for the stator windings, one for the rotor windings.

If I have it right, most often they are hooked up :

Rotor + to Stator -

Stator + to power source +

Rotor - to power source -

That way the same voltage contorls both windings equally giving you MUCH more control over speed and torque.

[drdongle]

It's is definatly a series motor and NOT sutable for use in a wind generator.

[adelaide]

ok is it efishent for elec vecle ?

[Ungrounded Lightning Rod]

By the way:  Never hook 'em up in series for a generator application.  You can end up with the "self-reversing motor" effect, where the generator switches polarity when the output load drops.

[Ungrounded Lightning Rod]

By this I mean never hook the armature and field of the GENERATOR in series.  Works great for the motor.

[drdongle]

Probably, depends on voltage, RPM, HP, need a gearbox? mounting? numerious issues, like what compromises you are willing or able to make.

[adelaide]

think the rpm was good ,think 2000 or 3000 so put it to cheep car g box or try direct first? are they bad efishancys ?just put some wirtes to bat bank so can wind charge or better something that could swap pacs would be a hard thing to do ,elec scoooter arriving soon is first elec transport .will be wind charged coool

[nickelbender]

If you can pull out the pole shoes and spin new coils this could be of use.

Armatures are a bear to wind but fields are easy. In fact I might be interested in aquiring one of these motors can you give me some more information?