http://www.kellycontroller.com/mot/Brushed-Motor-Speed_Controller.html
Seth A. Keel wrote:
Hey all,
So I got a cheap shunt wound motor recently. It's a military spec
starter/generator. The guy said the field coils can only take 24v
max, but didn't give me a current limit. The motor supposedly can
handle 96v and a lot of current. 18HP continuous at 72V The
nameplate is missing, so that's about all the info I have and I don't
know how accurate it is.
I have a little PWM controller for motor testing, but how should I
excite the field windings? Just hook up a 12v battery directly?
There is 2.4 ohm resistance, so I'm expecting it will draw 5-6 amps.
I just want to double check before I fry the motor by hooking up the
battery.
Also, what controllers work well for separately excited motors?
Here's the short list of controllers I'm considering:
Sevcon Powerpak SEM (version 3)
http://www.sevcon.com/pages/powerpakSEM.html
Zapi Sem 3
http://www.electrofit-zapi.com/hfcontsepex.htm
Any other suggestions? Thanks,
Seth
