Title :
Theoretical Considerations of Magnetic Hysteresis and Transformer Inrush Current
Author :
Cardelli, E. ; Della Torre, E. ; Esposito, V. ; Faba, A.
Author_Institution :
Dept. of Ind. Eng., Univ. of Perugia, Perugia, Italy
Abstract :
This paper presents an application of a hysteresis model that is coupled to an equivalent network for the calculation of the inrush current due to an arbitrary excitation of a transformer after a fault. The approach proposed, although using several simplifying assumptions, seems promising in order to calculate the optimal time to close the circuit after a fault.
Keywords :
excited states; magnetic hysteresis; power transformers; arbitrary excitation; equivalent network; magnetic hysteresis; transformer inrush current; Circuit faults; Magnetic cores; Magnetic flux; Magnetic hysteresis; Power system protection; Power system relaying; Power system transients; Power transformers; Surge protection; Transformer cores; Inrush current; magnetic hysteresis;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2009.2031084
