Title :
Analysis of unsymmetrical fault using symmetrical component for improvement of overcurrent protection scheme
Author :
Borkar, M.D. ; Thakur, K.D.
Author_Institution :
Electr. Dept., Gov. Coll. of Eng., Amravati, India
Abstract :
The distribution power system maintains its steady state mainly because of the correct and quick remedial action taken by the protective relaying equipment. Transient currents due to fault and switching events are common in power system. The operation of protective relay for transient due to switching condition is undesirable. The method of symmetrical components provides a technology for understanding and analyzing power system operation during unbalanced conditions and it also prevents undesirable operation due to switching. In this paper the concept of symmetrical components is used for improvement of distribution system over current protection.
Keywords :
fault diagnosis; overcurrent protection; power distribution faults; power distribution protection; relay protection; switching transients; distribution power system; over current protection; overcurrent protection scheme; protective relaying equipment; switching event; symmetrical component; transient current; unbalanced condition; unsymmetrical fault analysis; Circuit faults; Induction motors; Power transformers; Relays; Switches; Transient analysis; Criterion function; Induction motor starting; Switching transients; Symmetrical components; Transformer energizing; Unsymmetrical Fault; overcurrent relay;
Conference_Titel :
Computer Communication and Informatics (ICCCI), 2013 International Conference on
Conference_Location :
Coimbatore
Print_ISBN :
978-1-4673-2906-4
DOI :
10.1109/ICCCI.2013.6466119
