DETECTION OF SHORT CIRCUIT LOCATION IN RADIAL NETWORK LINES WITH ONE-SIDE SUPPLY
https://doi.org/10.21122/2227-1031-2012-0-4-115-121
Abstract
In order to increase technical perfection of line protection it looks advantageous to use reliable data on short circuit occurrence. Realization of the function on detection of faults in microprocessor-based over-current protection of one-side supply lines makes it possible significantly to expand the zone of immediate switching-off of short circuit. The paper considers distance principle which is applied for measuring components of complex resistance of the damaged loop while using an algorithm of orthogonal components. Expressions for determination of distance up to the damage location have been proposed with due account of short circuit type. An optimum algorithm characterized by high accuracy and good dynamic properties has been selected on the basis of investigations executed with the help of numerical experimental method when the line is operating in the mode of maximum load and idle running for various types of damages and with the presence of a transient resistance.
About the Authors
F. А. Romaniuk
Belarusian National Technical University
Belarus
Belarus
A. A. Tishechkin
Belarusian National Technical University
Belarus
Belarus
E. V. Buloychik
Belarusian National Technical University
Belarus
Belarus
References
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Review
For citations:
Romaniuk F.А., Tishechkin A.A., Buloychik E.V. DETECTION OF SHORT CIRCUIT LOCATION IN RADIAL NETWORK LINES WITH ONE-SIDE SUPPLY. Science & Technique. 2012;(4):69-73. (In Russ.) https://doi.org/10.21122/2227-1031-2012-0-4-115-121
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