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duindi007
Member

Join Date: Sep 2007
Posts: 7

Calculating Excitation Voltage and Current from a Synchronous Generator?

09/26/2007 5:07 AM

Can any one explain me how can i calculate excitation voltage and current of 660MW generator having Xd=225.5% ,Xd"=21.4(sat), with terminal voltage of 22KV and power factor is .85.No other information is available????????????
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elbf2801
Commentator

Join Date: Feb 2007
Posts: 60
#1

Re: synchronous generator

09/26/2007 7:09 AM

This is not possible.

You must have the saturation curve(V x Iexc) of the equipment as well as all the parameters concerning the primary side of the transformer, such as primary resistance and all the primary impedances.

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nesubra
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Join Date: Nov 2006
Posts: 729
Good Answers: 2
#2

Re: synchronous generator

09/26/2007 7:56 AM

Excitation voltage is a design parameter and to be given by manufacturer.The parameters ref are for different purpose like to calculate Fault current etc.

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coconutpete
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Join Date: Feb 2007
Location: Suva Fiji Islands
Posts: 229
Good Answers: 3
#3

Re: Calculating Excitation Voltage and Current from a Synchronous Generator?

09/27/2007 12:28 AM

Contact the Manufacturer.

If you dont know the manufacturer return to line one of this comment

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