Transformer protection using the wavelet transform

Özgönenel O., Önbilgin G., Kocaman Ç.

Turkish Journal of Electrical Engineering and Computer Sciences, cilt.13, sa.1, ss.119-135, 2005 (Scopus) identifier

  • Yayın Türü: Makale / Özet
  • Cilt numarası: 13 Sayı: 1
  • Basım Tarihi: 2005
  • Dergi Adı: Turkish Journal of Electrical Engineering and Computer Sciences
  • Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.119-135
  • Anahtar Kelimeler: Differential protection, Discontinuity analysis, Discrete wavelet transform (dwt), Fast fourier transform (fft), Power transformer
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

This paper introduces a novel approach for power transformer protection algorithm. Power system signals such as current and voltage have traditionally been analysed by the Fast Fourier Transform. This paper aims to prove that the Wavelet Transform is a reliable and computationally efficient tool for distinguishing between the inrush currents and fault currents. The simulated results presented clearly show that the proposed technique for power transformer protection facilitates the accurate discrimination between magnetizing inrush and fault currents in transformer protection. © TÜBİTAK.