Title :
Modeling overcurrent relay characteristics
Author :
Chan, Sherman ; Maurer, Richard
Abstract :
An approach to computer modeling of the time-current characteristics of protective devices that relies on interactive manipulation and fitting of the curves, which are modeled mathematically as splines is presented. The approach is much easier to use than the commonly used curve-fitting methods, which are reviewed, and it does not require a digitizer. It has been applied successfully in a PC-based short-circuit and relay coordination program for overcurrent relays, fuses, and reclosers.<>
Keywords :
overcurrent protection; power system analysis computing; relay protection; PC-based short-circuit; computer modeling; fuses; overcurrent relays; reclosers; relay coordination program; time-current characteristics; Circuit faults; Computational modeling; Curve fitting; Delay effects; Fuses; Manufacturing; Polynomials; Protection; Protective relaying; Relays;
Journal_Title :
Computer Applications in Power, IEEE
