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motor control

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primox

Mechanical
May 16, 2020
1
what will you do if the available 3-phase supply is 220v and the electric motor nameplate says that the voltage has 208-230v / 460v ?
 
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See the nameplate for the lower voltage connections.
Are you sure that the supply is 220 Volts?
298-230v/460v implies 60 Hz.
220 Volts has not been a standard 60 Hz voltage in North America for about 60 years.
That motor is safe to use on 240 Volt systems.

Bill
--------------------
"Why not the best?"
Jimmy Carter
 
Even if your voltage truly is 220V 60Hz, it's fine. NEMA motor design calls for +-10% of nameplate voltage, but these smaller motors that have a "tri-voltage" rating (208-230/460) are actually designed around 220V +15 -10% so that they are OK with a 208V supply that can go down to 198V, through a 240V supply that can go to 253V. So at 220V you are right in the belly of the beast so to spek.


" We are all here on earth to help others; what on earth the others are here for I don't know." -- W. H. Auden
 
Jeff said:
So at 220V you are right in the belly of the beast so to spek.
Did you mean;
"So at 220V you are right in the belly of the beast so to spec.? (To much time on my hands.)

Bill
--------------------
"Why not the best?"
Jimmy Carter
 
Speak...

Or maybe I was channeling Ricky Ricardo...


" We are all here on earth to help others; what on earth the others are here for I don't know." -- W. H. Auden
 
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