Title :
False operation of vector surge relays
Author :
Freitas, Walmir ; Xu, Wilsun
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, Canada
Abstract :
This paper presents an investigation about false operation of vector surge relays due to adjacent feeder faults. The objective was to explore the scenarios that led to a higher risk of false operation. Simulation results have shown that the main factors affecting false operation are system and generator loading, generator inertia constant, amount of power exported by the generator, short-circuit level, feeder X/R ratio, fault clearance time, and electrical distance between the generator and the fault.
Keywords :
distributed power generation; power generation faults; relay protection; reliability; surge protection; synchronous generators; adjacent feeder fault; distributed generation; electrical distance; false operation; fault clearance time; feeder X/R ratio; generator exported power; generator inertia constant; generator loading; islanding detection; reliability; short-circuit level; synchronous generator; system loading; vector shift relay; vector surge relay; Circuit breakers; Circuit faults; Computational modeling; Distributed power generation; Power generation; Power system relaying; Relays; Surges; Synchronous generators; Threshold voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2003.820412
