DocumentCode
1171283
Title
A Mathematical Basis for a Protective Relay with Conic Pickup Characteristics
Author
Skuderna, John E.
Volume
81
Issue
3
fYear
1962
fDate
4/1/1962 12:00:00 AM
Firstpage
81
Lastpage
85
Abstract
A mathematical basis and suggested circuitry are proposed for a distance relay having unique pickup characteristics. By simple adjustments these characteristics, when plotted on an R-X diagram, can be made to assume the shape of any conic section, including: a hyperbola, a parabola, an ellipse, and a circle. Possible applications of these characteristics for protection of power systems are mentioned, with emphasis on use of the elliptical characteristic for protecting long, heavily loaded transmission lines.
Keywords
Cable insulation; Cable shielding; Conductors; Cooling; Electric breakdown; Oil filled cables; Petroleum; Power system relaying; Protection; Protective relaying;
fLanguage
English
Journal_Title
Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers
Publisher
ieee
ISSN
0097-2460
Type
jour
DOI
10.1109/AIEEPAS.1962.4501269
Filename
4501269
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