Title :
Influence of fault arc characteristics on the accuracy of digital fault locators
Author :
Funabashi, Toshihisa ; Otoguro, Hitomi ; Mizuma, Yoshishige ; Dubé, Laurent ; Kizilcay, Mustafa ; Ametani, Akihiro
Abstract :
This paper has proposed a time domain model of a fault locator with spacial reference to fault arc nonlinearities by applying the MODELS language of the EMTP. It has been found that an impedance relay type locator is significantly influenced by the fault arc nonlinearities, while the current diversion ratio method is not influenced. This validates the advantage of the current diversion approach over the impedance approach
Keywords :
EMTP; arcs (electric); digital instrumentation; fault location; power system analysis computing; power system faults; time-domain analysis; EMTP; MODELS language; current diversion ratio method; digital fault locators; fault arc characteristics; fault arc nonlinearities; fault locator; impedance relay type locator; spacial reference; time domain model; Arc discharges; Digital relays; EMTP; Fault location; Frequency domain analysis; Impedance; Nonlinear equations; Protection; Protective relaying; Time domain analysis;
Conference_Titel :
Power Engineering Society Winter Meeting, 2001. IEEE
Conference_Location :
Columbus, OH
Print_ISBN :
0-7803-6672-7
DOI :
10.1109/PESW.2001.916960
