Motor Overload Rating
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mendusa
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Motor Overload Rating

by mendusa » Thu Mar 13, 2008 4:09 pm

Hi guys i have a theory question that i cant figure out and I'm wondering can anyone help me out?

A three phase squirrel cage induction motor with a full load line current of 10 Amps is started by means of Star-Delta starter.

The overload unit is located in the delta loop
Calculate the current value the overload unit is set at?

any help would be great thanks again :)

ericmark

by ericmark » Thu Mar 13, 2008 8:35 pm

It is normal to set overloads at 0.58 of full load current so 5.8 amp never tried to work out why.

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