Motor Overload

Thread starter whazza2
Start date Jul 20, 2010

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whazza2

Senior Member

Jul 20, 2010

What should the overload be set to for a three phase 0.5kW motor?

Andy™

©Resident Geordie™

Supporting Member

Jul 20, 2010

0.5kw?

whazza2

Senior Member

Jul 20, 2010

Yeah which is 500watts.

Do you divide by 3 as its three phase, then divide that by 230?

Andy™

©Resident Geordie™

Supporting Member

Jul 20, 2010

you use square root of 3 - which is 1.73

Lee321

Distinguished Member

Jul 20, 2010

have to use the 3ph pi calc thing

Amp= kilowatts X 1000

-----------------

Volts X PF X 1.73

whazza2

Senior Member

Jul 20, 2010

Whats the answer to that

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Lee321

Distinguished Member

Jul 20, 2010

about 1 amp

whazza2

Senior Member

Jul 20, 2010

Cheers!

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