DocumentCode
1455152
Title
Ground fault relay protection of transmission lines
Author
Blackburn, J. L.
Author_Institution
Westinghouse Electric Corporation, Newark, N. J.
Volume
71
Issue
12
fYear
1952
Firstpage
1119
Lastpage
1119
Abstract
MOST TRANSMISSION SYSTEMS are grounded, usually solidly, and at several points. Consequently, except on a few cases, ample ground or residual current and voltage are available for ground relaying. Negative-sequence quantities also are used. None of these quantities are present during normal balanced 3-phase operation so that separate relays can be used, set sensitively, and below 3-phase load.
Keywords
Circuit faults; Current transformers; Power transformers; Power transmission lines; Protective relaying; Wires;
fLanguage
English
Journal_Title
Electrical Engineering
Publisher
ieee
ISSN
0095-9197
Type
jour
DOI
10.1109/EE.1952.6437842
Filename
6437842
Link To Document