A couple of layman questions

[petereads]

(1) Which voltage on an electric motor draws the higher amperage 380V or 220V?

(2) How should the overloads be set on a motor starter? Would it be 25% above nominal voltage rating adjusted for temperature?

 

[mdshunk]

(1) Which voltage on an electric motor draws the higher amperage 380V or 220V? ?

An identical motor will draw less current (amperage) when connected at the higher voltage.

((2) How should the overloads be set on a motor starter? Would it be 25% above nominal voltage rating adjusted for temperature?

Overloads are set for current, and not voltage. Are you talking about a voltage or phase monitor, perhaps?

 

[petereads]

Thanks

Thanks

So then, would you set the overload 10% above the nominal current rating as a standard?