Pattern classification of impulse faults in transformers by wavelet analysis
P Purkait, S Chakravorti - IEEE Transactions on Dielectrics and …, 2002 - ieeexplore.ieee.org
One of the tests carried out on a transformer after assembly is the lightning impulse test, for
assessment of the integrity of its winding insulation. In the case of a fault, it has been well
established that the pattern of the fault currents contains a typical signature of the nature and
location of the insulation failure involved. This paper describes a new approach using
the'wavelet transforms' to classify the patterns inherent in different fault currents. Whereas
conventional frequency-response analysis based techniques fail to identify the time …
assessment of the integrity of its winding insulation. In the case of a fault, it has been well
established that the pattern of the fault currents contains a typical signature of the nature and
location of the insulation failure involved. This paper describes a new approach using
the'wavelet transforms' to classify the patterns inherent in different fault currents. Whereas
conventional frequency-response analysis based techniques fail to identify the time …
[PDF][PDF] Pattern Classification of Impulse Faults in Transformers by Wavelet Analysis zyxwvutsrqponmlk
P Purkait - academia.edu
One of the tests carried out on a transformer after assembly is the lightning impulse test, for
assessment of the integrity of its winding insulation. In the case of a fault, it has been well
established that the pattern of the fault currents contains a typical signature of the nature and
location of the insulation failure involved. This paper describes a new approach using
the'wavelet transforms' to classify the patterns inherent in different fault currents. Whereas
conventional frequencyresponse analysis based techniques fail to identify the time …
assessment of the integrity of its winding insulation. In the case of a fault, it has been well
established that the pattern of the fault currents contains a typical signature of the nature and
location of the insulation failure involved. This paper describes a new approach using
the'wavelet transforms' to classify the patterns inherent in different fault currents. Whereas
conventional frequencyresponse analysis based techniques fail to identify the time …
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