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sujinvipin
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Join Date: Aug 2011
Posts: 93

Overload Relay

02/03/2012 4:00 AM

If a variable frequency drive is used for motor control, is it necessary to use an overload relay?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: overload relay

02/03/2012 4:04 AM

What does it say in the drive equipment manufacturer's instructions?

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mandi
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India - Member - New Member Engineering Fields - Electrical Engineering - New Member Engineering Fields - Power Engineering - New Member

Join Date: Jun 2011
Location: Chennapattanam (Coromandel Coast of the Bay of Bengal).
Posts: 31
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#2

Re: overload relay

02/03/2012 5:37 AM

most of the Modern VFD are build with overload application ...

you can refer your VFD Manufacture Specification.
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