Thread
:
Motor question
View Single Post
#
52
Posted to alt.home.repair
Bud--
external usenet poster
Posts: 1,981
Motor question
hr(bob)
wrote:
On Oct 30, 9:44 pm, wrote:
On Fri, 30 Oct 2009 19:41:08 -0500, "HeyBub"
wrote:
John Grabowski wrote:
I have a 115v, 1 1/8 HP motor with a faceplate rating of 13 Amps. It
actually draws 17 Amps (according to the Kill-A-Watt) with no load.
Does the difference mean anything important?
Thanks in advance for any advice.
P.S.
I haven't run the motor for more than a couple of minutes...
*With one horsepower equaling 746 watts even the nameplate rating
sounds a little high. If it is still high with your ammeter you
could have a bad bearing, but you should be able to hear that.
Let us know what you find.
The faceplate reads a clear "13.5 Amps."
Both the Kill-A-Watt (reluctantly) and a clamp-on ammeter show about 18-18.6
amps being drawn.
Interestingly, the clamp-on shows 18.5 amps on one wire and 16 on the other.
The difference must be in heat. Or condensation.
Cannot be. What flows in the one wire MUST flow in the other unless
you have a SERIOUS ground fault.
With the clamp-on meters, it is important to center the wire within
the "jaws" when taking readings. That might explain the 12%
difference between the in and out wires.
In any case it needs to be resolved.
What is the current on the ground wire?
--
bud--
Reply With Quote
Bud--
View Public Profile
Find all posts by Bud--