Title :
A time-domain approach to the measurement of K-factor [transformer derating]
Author :
Wang, Shyh-Chyang ; Devaney, Michael
Author_Institution :
Dept. of Electr. & Comput. Eng., Missouri Univ., Columbia, MO, USA
Abstract :
The paper presents a new method for computing the transformer derating or K-factor for a nonsinusoidal load. Based on the time-domain approach, the K-factor is calculated from the ratio of the square of two RMS current measurements. The new algorithm results in much less computational effort than the conventional frequency-domain approach but the accuracy is maintained
Keywords :
electric current measurement; load (electric); power transformers; time-domain analysis; K-factor; RMS current measurements; accuracy; algorithm; nonsinusoidal load; power transformers; time-domain; transformer derating; Current measurement; Discrete Fourier transforms; Fast Fourier transforms; Fourier series; Power transformer insulation; Power transformers; Solid state lighting; Temperature; Time domain analysis; Welding;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-1456-5
DOI :
10.1109/APEC.1994.316380
