Bryan
I have a 15hp idler running thru a 40 amp breaker. Idling it draws;
L1=18 Amps L2=21 amps L3=23 amps

After starting the 12.5hp motor on my harrison the amps won't change
by more than an amp or so. Contact me privately if I can be of any
help.

John Normile jnormile (at) cswnet.com

On Thu, 10 Jul 2003 06:47:54 -0400, Brian Lawson
wrote:

Does anyone know what the IDLING current draw is for a rotary where
the idler motor is in the ranges you speak of, typically 5 to 15 HP?
My lathe motor is 5HP , so I expect I'll be needing a 7.5 HP rotary
convertor idler motor, but it turns out a 15 HP wound rotor may be
more readily available to me. I've wondered about which way to go
for long term economy. My hope for the proposed new shop is that if
I go rotary, that I'll "power up" the convertor sometime in the early
part of the day, and it will run for hopefully 5 or 6 hours on a
regular basis. I can see this helping a bit to heat the shop in the
winter, but cost even more to cool it in the summer, but I'm wondering
just about the costs of operating it.

And so my question is, can anyone give us the amperage on their
particular 220/240 line feeding their particular rotary when there is
no "machine" operating from it? And some details as to what sizes
everything is?

TIA.

Brian Lawson,
Bothwell, Ontario.
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