NDLI: A Fault Location Algorithm Based on Circuit Analysis for Untransposed Parallel Transmission Lines

Content Provider	IEEE Xplore Digital Library
Author	Sang-Hee Kang Yong-Jin Ahn Yong-Cheol Kang Soon-Ryul Nam
Copyright Year	1986
Abstract	This paper proposes a fault-location algorithm for ultra-high-voltage untransposed parallel transmission lines that only use the voltages and currents at the local end. The proposed algorithm uses the voltage equation for the faulted phase of the faulted line. The equation contains the fault distance, fault resistance, and fault current. To obtain the fault current, Kirchhoff's voltage law is applied on the loops of three phases consisting of the faulted line and the adjacent parallel line. The fault current can be represented in terms of the fault distance. Inserting the fault current into the voltage equation results in an equation that contains only two parameters (i.e., the fault distance and fault resistance). The fault distance is estimated by solving the equation. Test results indicated that the algorithm accurately estimates the fault distance regardless of the fault resistance and mutual coupling effects.
Sponsorship	IEEE Power Engineering Society
Starting Page	1850
Ending Page	1856
Page Count	7
File Size	303459
File Format	PDF
ISSN	08858977
Volume Number	24
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fault location Circuit analysis Distributed parameter circuits Circuit faults Equations Fault currents Voltage Kirchhoff's Law Testing Mutual coupling untransposed parallel transmission lnes fault resistance mutual coupling effect
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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