Title :
Wavelet transform-based impulse fault pattern recognition in distribution transformers
Author :
Purkait, P. ; Chakravorti, K.
Author_Institution :
School of ITEE, Queensland Univ., St. Lucia, Qld., Australia
Abstract :
This letter presents a novel approach using the wavelet transform to classify the patterns inherent in different fault currents during impulse testing of distribution transformers. Results for simulated models of a range of distribution transformers are presented to illustrate the ability of this approach to classify insulation failures under impulse stresses.
Keywords :
fault currents; impulse testing; pattern classification; power transformer insulation; power transformer testing; signal classification; wavelet transforms; distribution transformers; fault currents; impulse testing; insulation failures classification; patterns classification; wavelet transform-based impulse fault pattern recognition; Continuous wavelet transforms; EMTP; Fault currents; Impulse testing; Insulation testing; Lightning; Pattern recognition; Power transformer insulation; Time frequency analysis; Wavelet transforms;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2003.817845
