Title :
Comparison of performance of various ferroresonance suppressing methods in inductive and capacitive voltage transformers
Author :
Sanaye-Pasand, M. ; Rezaei-Zare, A. ; Mohseni, H. ; Farhangi, Sh. ; Iravani, R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tehran Univ.
Abstract :
To avoid or damp out ferroresonance in inductive and capacitive voltage transformers, a few ferroresonance damping methods have been proposed and used in these instruments. In this paper, some of the suppressing circuits are reviewed. Specifications of these circuits and the effects of various parameters on their performances are discussed. Furthermore, using frequency domain analysis, the effects of the suppression circuits on the measured voltage signal and overall characteristics of the voltage transformers in normal operating conditions are investigated. Using time domain simulations, the occurrence of ferroresonance in inductive and capacitive voltage transformers is studied and the effects of the suppressing circuits on the transient performance of these transformers and damping out ferroresonance are investigated and compared to each other
Keywords :
damping; ferroresonant circuits; frequency response; potential transformers; time-frequency analysis; capacitive voltage transformer; ferroresonance damping method; ferroresonance suppression circuit; frequency domain analysis; frequency response characteristic; inductive voltage transformer; time domain simulation; voltage signal measurement; Capacitance; Circuits; Ferroresonance; Inductance; Power system protection; Power system relaying; Power system transients; Saturation magnetization; Voltage control; Voltage transformers;
Conference_Titel :
Power India Conference, 2006 IEEE
Conference_Location :
New Delhi
Print_ISBN :
0-7803-9525-5
DOI :
10.1109/POWERI.2006.1632628