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Topic Title: Turbine Generator Fault Current
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Created On: 17 July 2012 02:30 PM
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 17 July 2012 02:30 PM
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Peddler

Posts: 36
Joined: 28 May 2008

Hi Folks,

I want to determine the possible fault current on one of my generators.
The set in question is 2.8MW 480v 0.8pf.

I mailed Kato yesterday for the sub transient reactance and they quoted me a figure of 20.2 %

anyway i get my fault figure to be 20839 A

A couple of ours later the send me a data sheet with the following

INSTANTANEOUS SYMMETRICAL FAULT CURRENT

3 PH 20815
L-L 18294
L-N 29863


INSTANTANEOUS ASYMMETRICAL FAULT CURRENT

3 ph 36053
L-L 31687
L-N 51726

can anyone explain to me ,

tks

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