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Rooney
Associate

Join Date: Jun 2009
Posts: 49

No Load Loss and Full Load Copper Loss

06/16/2009 4:54 AM

Hello Everybody!

Could somebody tell me the standard " No Load Loss " and " Full Load Copper Loss at 75 deg C, for a 10 MVA transformer working at 132 / 11 KV ?

Regards,

Rooney

India
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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: Question

06/16/2009 5:10 AM

The manufacturer can do this.

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Aldego
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Join Date: May 2009
Location: Centurion, South Africa
Posts: 87
Good Answers: 5
#2

Re: No Load Loss and Full Load Copper Loss

06/17/2009 12:43 AM

These values are an integral part of the, design and manufacturing process, and differ from manufacturer. As somebody else pointed out the manufacturer will give you the values. Normally these transformers's efficiency is between 96 and 97% at 100% load.

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myn1996
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Join Date: Jan 2009
Posts: 62
Good Answers: 4
#3

Re: No Load Loss and Full Load Copper Loss

06/21/2009 9:26 PM

For an ANSI rated txfr:

10 MVA, 132/11 kV

%Z X/R

Positive 9 15.5

Zero 9 15.5

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Rooney
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Join Date: Jun 2009
Posts: 49
#4

Re: No Load Loss and Full Load Copper Loss

08/12/2009 12:29 AM

Thank you gentlemen!!
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