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Motor question HeyBub 10-29-2009
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Posted by HeyBub on October 29, 2009, 9:16 pm


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...



Posted by Mark on October 29, 2009, 10:07 pm


> 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...

could mean some shorted turns or binding bearings, (but you should be
able to feel that by turning the rotor by hand) or it could mean
nothing..

leave it run for longer and see how hot it gets..

Does it have a starter relay or cap that is defective?

Mark



Posted by HeyBub on October 30, 2009, 6:03 am


Mark 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...
> could mean some shorted turns or binding bearings, (but you should be
> able to feel that by turning the rotor by hand) or it could mean
> nothing..
> leave it run for longer and see how hot it gets..
> Does it have a starter relay or cap that is defective?

It has a starter relay that disengages properly. The start cap is new.



Posted by Tony Hwang on October 29, 2009, 10:08 pm


HeyBub 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...
Hi,
Are you reading peak current or average current draw? When motor starts
there is a surge of current.

Posted by HeyBub on October 30, 2009, 6:04 am


Tony Hwang wrote:
> HeyBub 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...
> Hi,
> Are you reading peak current or average current draw? When motor
> starts there is a surge of current.

Average draw after the motor reaches speed.



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