ringing out motor windings

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jrock0305

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how do i ring out a motor when there are 9 leads how do i know which is which for ex. 480v motor 4-7/5-8/6-9 then t1 to 1 t2 to 2 t3 to 3-aprreciate any info
 
jrock0305 said:
how do i ring out a motor when there are 9 leads how do i know which is which for ex. 480v motor 4-7/5-8/6-9 then t1 to 1 t2 to 2 t3 to 3-aprreciate any info
Click to expand...

If I follow your question theres a trick you can remember. I'm not sure what its called, but I just remember 9-6-3.

9=# of leads.
6= low voltage
3= high voltage

Low volt
4-5-6 go together
7-1 together=6
8-2 together=6
9-3 " " =6

High volt
1-2-3 go together
9-6 " " =3
8-5 " " =3
7-4 " " =3

Is that what you were looking for?
 
iwire said:
There must be a tool for that :cool:
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If there is, I want it. I've probably bumped into an old motor or an old machine at least once a year that I had to take to the motor shop to get sorted out. All the leads were just black, with no visible numbers anymore. It costs right around 100 bucks for the motor shop to label them, plus whatever it costs me to take the motor in and pick it up again. There must be a way.
 
chris kennedy said:
I see, I thought OP couldn't read the PHead.
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That might well be. Since it seems his question was answered adequately, I just expanded on it with the next logical question. I sorta half wonder if the motor shop just doesn't take the motor to bits and physically trace them out?
 
Chris,
The information in your post only applies to wye wound motors. Sometimes you will find a delta connected motor. The high voltage connections are the same but the low voltage are not.
Don
 
mdshunk said:
Anybody got a trick for when you can't read the numbers on the leads anymore?
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I have it! I found it a long time ago somewhere out there in cyberworld and printed it out. I rarely have to use it, so I can't remember it. But..... it is in my work truck. I'm off work for the next 4 days. If no one gives you an answer before Tuesday I'll post it.
 
don_resqcapt19 said:
Chris,
The information in your post only applies to wye wound motors. Sometimes you will find a delta connected motor. The high voltage connections are the same but the low voltage are not.
Don
Click to expand...

Any more details Don?
 
hockeyoligist2 said:
I have it! I found it a long time ago somewhere out there in cyberworld and printed it out.
Click to expand...

Is this one of those deals where you hold out until we all send you a dollar?;)
 
Chris,
If you have a 9 lead delta motor the connections are 1,6,& 7 to line 1; 2,4 & 8 to line 2 and 3, 5 & 9 to line 3. You can find many motor connections here.

edit: Note this is the low voltage connection.
 
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