TECO Westing House 12 Lead MAX-E1 Motor

[Saturn_Europa]

The plant I work at has WYE 480V 3 phase.

Just got in a rebuilt motor back. Its a 12 lead motor.

I didnt unwire it.

From what I am reading online it should be 4&7, 5&8, 6&9, 10&12&11 wired together. Then my line voltage to T1, T2 and T3.

It will be running on a VFD.

Let me know if this looks good.

 

[ActionDave]

That would make it a 480V wye motor. Usually the motor is set up by the manufacturer to either be wye or delta. Was it always a 12 lead motor? You only need a 12 lead motor if you are using a wye start-delta run starter, and you don't need that with a VFD.

Got a picture of the nameplate?

 

[Saturn_Europa]

Its a Design: B

Serial Number: TJV6236225 023

Type: AEHH8N

It has always been a 12 lead motor.

 

[Saturn_Europa]

 

[ActionDave]

Since it's always been a 12 lead I would bet that it should be wired up delta. It will run in either wye or delta but have lower torque in wye.

 

[MTW]

This would be my guess, no diagram under the box cover?

Wye/delta 12 lead dual voltage

Wire for high voltage delta run for VFD use.

other diagrams for reference. https://acim.nidec.com/motors/usmotors/techdocs/connection-diagrams