I wasn't seriously thinking about just plugging it in! This project is
slated to have a VFD after I find a suitable motor so this is just
temporary hookup for speed and power draw tests. I'll have to dig in the
projects box for a 3 pole relay. I know I have a multipole toggle switch
with suitable ratings but I'm not comfortable with doing testing with
it. Fingers get too close to the source of the magic smoke.
I picked up several boxes of various relay's, control panels, motor
starters, etc. Suppose I should do an inventory.
Robert Swinney wrote:
Take a look at www.metalwebnews.com. Scroll down to "Electrical - Phase Converter Information"
then to "Induction Motors and Phase Converters". There you will find some examples of start and
run circuits that will be much safer than plugging twist locks in under load.
Bob Swinney
oyJ" wrote in message ...
Thanks for the link. The Leeson site was much less helpful.
I think you meant "line 1 to (1 and 6) together" but that still doesn't
seem right on this motor. I won't have a chance to look at it some more
until tomorrow. Think I'll get the sensitive ohm meter out and check
things more closely.
I need to make some sort of switch or starter relay. I just hate
plugging 3 phase twist locks in under load. 
More later.
Robert Swinney wrote:
Roy,
Are you sure you don't mean 6 leads numbered 1through 6 and a #8 lead which is ground ?
If this is so then std. hookup should be: line 1 to (1 and 2) together; phase 2 to (2 and 4)
together; phase 3 to (3 and 5) together.
Diagrams found at: http://www.electricmotorwarehouse.co...n_diagrams.htm
Bob Swinney
"RoyJ" wrote in message ...
I've got a spare 3 phase Leeson 1-1/2 hp motor I need to test out and
use on a temporary project. Of course the wiring diagram is missing. It
has 6 leads numbered 1 through 5 and a #8. I know what to do with 9
wire units, this one is very likely a single voltage unit, 208/230 volt.
What is the most likely wiring configuration? I can guess but I usually
need to replace a fuse or two before I get it right.