Oct 18, 2006 · The present NEMA standard is to nameplate motors at 460V for operation on a nominal 480V system. This allows for the unavoidable voltage drop that occurs between the main bus and the …

May 19, 2004 · Can someone explain why NEMA uses 460V as it's standard but not 480V? I am wondering why all motor specifications and catalogs list 460V but not the nominal 480V? If the …

Jan 10, 2005 · As a european supplier we are confused with the various terms and numbers used for power supply specs in north america. Terms like nominal system voltage, nominal utilization voltage, …

Apr 4, 2017 · we have a ABB AC 460V/60Hz motor run on 380V/50Hz power supply in China. The motor is connected to a ABB drive. The nameplate of motor rating is...

Mar 16, 2007 · We order a 460V, 60Hz specs squirrel cage motor (12/7KW) at dual speed 1445/730 rpm. But the supplier delivers us instead of 400V, 50Hz (same KW, n rpm rating)motor.

Dec 7, 2005 · Due to a mix up a customer has several 1/10 hp, 230 volt, 3 phase, 60 Hz motors and 460 volt 1/4 hp VFD's. The motors are 50-60 feet away from the VFD's. They have tried "reducing the …

Sep 2, 2014 · Our machinery normally uses 460V, 3-phase supply. We have come across an instance where customer only has 208V, 3-phase, and not a hope of changing. I am in the process of …

Aug 15, 2005 · I know that I have seen somewhere recently a fairly simple mathematical model that shows why running a 380 / 50 motor at 460 / 60 is OK. Obviously, it is a matter of maintaining the …

Oct 4, 2004 · What is the "normal" three phase voltage in the US ? 440V, 460V or 480V ?? Offshore is normally 440V but motors made in US are 460V and someone claims 480V...

Jan 10, 2007 · The difference is semantics really.600V, 480V, 240V etc. are called the "distribution" voltages, reflecting the measurable levels coming from the utility and/or transformer secondaries. …