Phase Order to motor

[m3rheino]

If I connect wires to a motor and the order is

L3 wire goes to L1 motor connection
L1 wire goes to L2 motor connection
L2 wire goes to L3 motor connection

will the motor run backwards? Instead of providing 123, I am providing power skewed at 231. The phases are still in sequential order.

Thanks for your help.

Craig

 

[electricpete]

There will be no difference in rotation direction if you roll leads from 1 2 3 to 2 3 1

Whether it is the right direction is tougher to know

=====================================
(2B)+(2B)' ?

 

[electricpete]

In other words, the connection you described above if equivalent (for rotation) to 1-1 2-2 3-3

=====================================
(2B)+(2B)' ?

 

[petronila]

Hello Craig

If the motor is not uniderection designed( the motor must run in one direction due to the fan only blows air in that direction) you can connect the motor random, runs and note rotation direction. (L1-T1, L2-T2, L3-T3)If the Rotation direction is not the desired then change two of the Phases.(L1-T1, L2-T3, L3-T2)

L is power and T is motor lead

If is a unidirectional fun you most determine the power phase sequence and connect like name plate sayds.

Regards

Carlos

 

[purplepete]

If it's of any value the metric standard for motor rotation is that RWB connected to L1 L2 L3 on the motor causes it to rotate clockwise looking AT the drive shaft end. Assuming phase rotation is RWB. In thye City of Melbourne 100 years ago the elders decided the phase rotation was to be RBW. That caused various levels of grief and meriment.
If a motor has ben rewound there are no guarantees of rotation unless the rewinder has been told to get it right.

 

[purplepete]

That's Melbourne Australia, apologies to Melbourne Florida.

 

[jraef]

Think that through a little more:

1-2-3 = 1 followed by 2, followed by 3, then what? 1, followed by 2, followed by 3, followed by 1, followed by 2, followed by 3 ad nauseum, right?

2-3-1 = 2, followed by 3, followed by 1, followed by 2, followed by 3, followed by one ad nauseum.

See the pattern here?

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