1. A general approach to sine comparators.
- Author
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Thakkar, K.K. and Parthasarathy, K.
- Subjects
- *
ELECTRIC lines , *COMPARATOR circuits - Abstract
This paper reports a comprehensive general analysis of sine comparators for distance protection of transmission lines. A mathematical basis is developed for realizing rectilinear characteristics and a graphical construction is presented to derive the necessary input signals for the sine comparators for obtaining a variety of pick-up characteristics on the impedance plane. A new criterion in multi-input sine comparators (sequence comparators) for the discrimination of faulty and healthy conditions of a protected transmission line section is established and a comparator model in schematic form is presented to realize the popular quadrilateral polar characteristics based on the new criterion. [ABSTRACT FROM AUTHOR]
- Published
- 1970
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