Title :
A digital current transformer model for relay studies
Author :
Song, L. ; Li, K.K. ; David, A.K.
Author_Institution :
Hong Kong Polytech., Kowloon, Hong Kong
Abstract :
The errors introduced by the current transformer (CT) during fault conditions, especially when the CT goes into saturation, affect the accuracy of the protection system. In order to study the transient performance of a CT thoroughly, it is necessary to develop an appropriate numerical CT model. In this paper, a digital model of current transformer suitable for relay studies based on the classical Preisach model is presented
Keywords :
power system protection; classical Preisach model; computer simulation; current transformer saturation; fault conditions; numerical model; power system relay studies; transient performance;
Conference_Titel :
Developments in Power System Protection, Sixth International Conference on (Conf. Publ. No. 434)
Conference_Location :
Nottingham
Print_ISBN :
0-85296-672-5
DOI :
10.1049/cp:19970106
