Motor Taps Delta/Wye?

[bennie]

Re: Motor Taps Delta/Wye?

Justin: Are these motors marked 380/220 volts, 50 Hertz?

I think this is the situation. Israel uses that voltage.

The motors connected for 380 will run slow on 220.

[ October 05, 2003, 03:51 AM: Message edited by: bennie ]

 

[Ed MacLaren]

Re: Motor Taps Delta/Wye?

Bennie, you are correct again.

After a little more research, I found there are dual-voltage motors made to operate at 220 volts when delta connected, and 380 volts when wye connected.

Details at http://www.usmotors.com/products/ProFacts/1-120-7.htm

Ed

 

[bennie]

Re: Motor Taps Delta/Wye?

Ed: Your mention of the 58% jogged my memory.

I encountered some motors that required 380 volts, when I worked at the UK site, on Christmas Island, in the South Pacific.

[ October 05, 2003, 10:48 AM: Message edited by: bennie ]

 

[justin]

Re: Motor Taps Delta/Wye?

YES!! They are marked 380Y/220 Delta. In the future would the smart choice be to tap the motor based on the voltage regardless of the System?

 

[Ed MacLaren]

Re: Motor Taps Delta/Wye?

would the smart choice be to tap the motor based on the voltage?

It's the only choice. The motor windings must be connected to match the supply voltage, or it won't operate properly.

As Don stated above, the supply transformer connection, wye or delta, has absolutely no effect on the way the motor windings are connected.

Ed

 

[bennie]

Re: Motor Taps Delta/Wye?

Very good Ed. We kept digging until this made sense and was resolved. Place a smiley face on the computer screen.

 

[Guest]

Re: Motor Taps Delta/Wye?

WooHoo! Kudos!