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niks_ele
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Join Date: Sep 2011
Posts: 11

Standard Source MVA

09/12/2011 7:53 AM

I want to know standard source MVA as per voltage level to be considered during System study if source MVA is not available.
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electricalexpert65
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#1

Re: Standard Source MVA

09/12/2011 10:08 AM

Which country you are from?
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RAMConsult
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Engineering Fields - Power Engineering - New Member

Join Date: May 2007
Location: NYC metropolitan area.
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#2

Re: Standard Source MVA

09/12/2011 10:14 AM

If you have no access to what is at the other end of the transmission line and/or transformer that is feeding your system then the most conservative estimate is to use an infinite bus as the source. An infinite bus provides a constant 1.0 pu (per unit) voltage source through the series impedance of the transmission line and/or transformer, which in turn provides the maximum current that can be delivered to your system. The short answer is to take the reciprocal of the sum of the two above reactances in pu and multiply the result by the base MVA. You can safely ignore the resistances until you are doing a voltage regulation study.

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niks_ele
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Join Date: Sep 2011
Posts: 11
#4
In reply to #2

Re: Standard Source MVA

09/13/2011 12:56 AM

Thanks! But i want to know that is there any standard to assume Fault MVA(If it is not available). Say for Each Voltage level Some standard MVA we can assume.
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pnaban
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Join Date: Jun 2010
Location: srilanka
Posts: 2725
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#3

Re: Standard Source MVA

09/13/2011 12:28 AM

Please ask your utility,if they refuse sue them in the court.

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jonald
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Join Date: Sep 2009
Location: Singapore
Posts: 77
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#5

Re: Standard Source MVA

09/14/2011 2:38 PM

Table II of IEC publication 76-5 for MVA rating as per voltage level. In IEEE standard I have no idea.
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pnaban
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Join Date: Jun 2010
Location: srilanka
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Good Answers: 5
#6
In reply to #5

Re: Standard Source MVA

09/14/2011 10:29 PM

Would you provide a link to download it?.

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jonald
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Join Date: Sep 2009
Location: Singapore
Posts: 77
Good Answers: 1
#7
In reply to #6

Re: Standard Source MVA

09/15/2011 12:02 AM

I think you need to buy, We only have hard copy in our company.
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niks_ele
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Join Date: Sep 2011
Posts: 11
#8
In reply to #7

Re: Standard Source MVA

09/15/2011 1:52 AM

Can you provide some table or scan copy of the same?? Thanks
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jonald
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Location: Singapore
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#9

Re: Standard Source MVA

09/15/2011 4:15 AM
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niks_ele
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Posts: 11
#10
In reply to #9

Re: Standard Source MVA

09/15/2011 5:35 AM

Thank you very much!!
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jonald
Commentator

Join Date: Sep 2009
Location: Singapore
Posts: 77
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#11
In reply to #10

Re: Standard Source MVA

09/15/2011 6:59 AM

If you can get the same but as per american standard kindly share this too. thanks
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Users who posted comments:

electricalexpert65 (1); jonald (4); niks_ele (3); pnaban (2); RAMConsult (1)

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