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Topic Title: +ve sequence and zero sequence impedance of generator Topic Summary: Created On: 22 February 2010 02:56 AM Status: Post and Reply |
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 22 February 2010 02:56 AM
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can we find the positive sequence [X,R] and zero sequence impedance [X,R] from the data generator given ? :-
X/R ratio = 10 MVA = 100 kV =132kV Fault level = 7200 i'm only get to find their generator sub-transient impedance Xd" by this formula :- generator fault level (MVA) = generator capacity (MVA) / generator subtransietn impedance (Xd") we can get their Xd" = 1.39%... after that i dont know how to continue their calculation.. |
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19 April 2010 02:01 PM
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actually at the rated conditions the Xs =X1 that is synchronous impedance is positive sequence impedance which is actually reactance
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+ve sequence and zero sequence impedance of generator
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