You guys, I came upon a little mystery. At least, it's a mystery to
me!
I have an e-motor that I thought was just a run-of-the-mill shunt-wound
(run-of-the-mill except for being really large)... but when I measured the
FIELD windings' resistance, I got about .6 ohms, and when I measured the
ARMATURE resistance, I got about 30 ohms. Is it because my brothers put me in
the clothes dryer (and turned it on) when I was little, or is that just
perfectly backwards? (And yes, I'm sure the armature measurement is the
armature... not just because of the giant "A"s stamped into the metal, but
also because you can see the physical connection between the A terminals and
the brushes.)
Thanks for any light you can shed, ETers. Maybe I'm gonna wind up doing
armature weakening to make this one go fast...
And since this is tangent to ElecTraks themselves, I guess I should
suggest responses off-line to my regular e-ddress, mhall maxmatic com... but I
also guess that, unless I'm just backward anyway, the story might be
interesting.
Best to everyone,