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A new wavelet based ground fault protection scheme for turbo generators
, P.V. Ramana Rao
Published in
Pages: 353 - 356
This paper proposes a protection scheme for turbo generators to detect stator ground faults in particular closer to neutral. The scheme considers total generated voltage of the machine and makes use of Wavelet Multi Resolution Analysis. A Fault Index is defined in terms of peak and valley values of the highest-level wavelet decomposition, which is compared with a threshold value to discriminate from other transients like sudden unbalance in load. The results of digital simulation are presented for different fault impedances and fault locations. ©2007 IEEE.
About the journal
JournalICIIS 2007 - 2nd International Conference on Industrial and Information Systems 2007, Conference Proceedings