Inrush current identification based on wavelet transform and correlation factors

One of the major problems due to protecting of power transformers is discrimination between inrush currents and single phase to ground faults currents. In this paper, a new method based on wavelet transform and correlation factors will be proposed. In the suggested method, a discrete wavelet transfo...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Kargar, H.K., Jabbari, M., Golmohammad_zadeh, S.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Correlation Factors Fault currents Fault diagnosis Inrush Current MATLAB Power engineering and energy Power system simulation Power Transformer Power transformers Random variables Reactive power Single Phase to Ground Fault Surge protection Wavelet Transform Wavelet transforms
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	One of the major problems due to protecting of power transformers is discrimination between inrush currents and single phase to ground faults currents. In this paper, a new method based on wavelet transform and correlation factors will be proposed. In the suggested method, a discrete wavelet transform has been used which its third step (d3) consists of information for the detection of discrimination. Also correlation factors have been utilized to make a comparison between the d3 of the inrush currents and the single phase to ground faults. The new method is approved by a simulation program running in MATLAB.
DOI:	10.1109/ECTICON.2009.5136963