DocumentCode
3185798
Title
A new digital relay to provide protection against unbalanced fault conditions
Author
Usta, Ö ; Bayrak, M. ; Özdemir, M.
Author_Institution
Dept. of Electr. Eng., Istanbul Tech. Univ., Turkey
fYear
2001
fDate
2001
Firstpage
426
Lastpage
429
Abstract
In this paper, a new digital relay monitoring the sinusoidal component of three phase instantaneous power is introduced for generator protection against unbalanced faults. It is designed such that the new relay can provide protection for all types of asymmetrical internal faults provided that it creates 1% or more unbalanced power based on the machine rated capacity. While the new relay produces high speed tripping for internal asymmetrical faults, it provides back-up protection for external unbalanced conditions
Keywords
electric generators; electrical faults; machine protection; machine testing; monitoring; power measurement; relay protection; asymmetrical internal faults; back-up protection; digital relay; external unbalanced conditions; generator protection; high speed tripping; internal asymmetrical faults; machine rated capacity; three-phase instantaneous power monitoring; unbalanced fault conditions protection;
fLanguage
English
Publisher
iet
Conference_Titel
Developments in Power System Protection, 2001, Seventh International Conference on (IEE)
Conference_Location
Amsterdam
ISSN
0537-9989
Print_ISBN
0-85296-732-2
Type
conf
DOI
10.1049/cp:20010190
Filename
929354
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