DocumentCode
127538
Title
Performance of generator protection relays during off-nominal frequency operation
Author
Tierney, Dennis ; Kasztenny, Bogdan ; Finney, Dale ; Haas, Derrick ; Bin Le
Author_Institution
Calpine Corp., USA
fYear
2014
fDate
March 31 2014-April 3 2014
Firstpage
450
Lastpage
469
Abstract
This paper reviews the protection requirements for generators during periods of off-nominal frequency operation. It investigates the behavior of instrument transformers during these periods as well as the impact of frequency on the accuracy of protection operating quantities. Traditional methods for frequency tracking and compensation are reviewed. A novel approach, which provides excellent performance for very significant frequency deviations and can accommodate multiple frequency islands, is presented.
Keywords
electric generators; instrument transformers; machine protection; relay protection; frequency tracking; generator protection relays; instrument transformers; multiple frequency island; off nominal frequency operation; protection operating quantity; Combustion; Frequency measurement; Generators; Relays; Stators; Switches; Turbines;
fLanguage
English
Publisher
ieee
Conference_Titel
Protective Relay Engineers, 2014 67th Annual Conference for
Conference_Location
College Station, TX
Print_ISBN
978-1-4799-4740-9
Type
conf
DOI
10.1109/CPRE.2014.6799021
Filename
6799021
Link To Document