Convert 12 lead 230v to 480v

[Omnio_potent]

So I’m working on a motor fan for a evaporator. I want to rewire a 12 lead 230v to a 480v. Can anyone help me on this I’ve connected 480v fan motors but not with 12 lead. Never seen it

 

[Flicker Index]

Look at the name plate for HV vs LV connections.

 

[Omnio_potent]

This evaporators got painted all over, I have no idea what kind it is

 

[infinity]

How is it wired now? Write down all of the connections and then you can find the higher voltage wiring designation for Wye or Delta.

 

[petersonra]

you could always ask google.

 

[don_resqcapt19]

you could always ask google.

Still need to know if the motor is to be delta or wye connected. I don't think I have ever seen a 12 lead motor intended for a wye connection at the higher voltage, but they may exist.

 

[LarryFine]

So I’m working on a motor fan for a evaporator. I want to rewire a 12 lead 230v to a 480v. Can anyone help me on this I’ve connected 480v fan motors but not with 12 lead. Never seen it

In a nutshell, each phase has two coils that are not connected in parallel, and need to be connected in series.

 

[retirede]

Still need to know if the motor is to be delta or wye connected. I don't think I have ever seen a 12 lead motor intended for a wye connection at the higher voltage, but they may exist.

If it’s a “normal” motor, it’s wye start/delta run at the nameplate voltages.

 

[infinity]

If it’s a “normal” motor, it’s wye start/delta run at the nameplate voltages.

What is a normal motor? Aren't 12 lead motors also designed for across the line starting not only Wye start Delta run?

 

[retirede]

What is a normal motor? Aren't 12 lead motors also designed for across the line starting not only Wye start Delta run?

Yes - but the only reason to bring all 12 leads out is to facilitate Y-D starting. Otherwise, only nine leads need to be brought out for dual voltage ATL.