NDLI: Characteristics of Direct Lightning Strokes to Phase Conductors of UHV Transmission Lines

Content Provider	IEEE Xplore Digital Library
Author	Takami, J. Okabe, S.
Copyright Year	1986
Abstract	Since transmission towers are taller and interphase distances are longer for ultra-high voltage (UHV) transmission lines than for conventional transmission lines, it is important to know the features of direct lightning strokes to phase conductors. With this in mind, the features of direct lightning strokes to UHV transmission lines were observed and 81 datasets were obtained for seven years between 1998 and 2004. Of the 81 datasets, 79 recorded strokes from negative lightning, and the characteristic features of these direct lightning strokes were quantitatively evaluated by Electromagnetic Transients Program analysis of the current amplitude, front duration, and stroke duration. The frequency distribution of lightning strokes to each phase conductor was different from the estimated values obtained from conventional shielding models. Based on the cumulative frequency distribution of the current amplitude observed in this study, a method is proposed for calculating direct lightning stroke current as part of designing lightning protection
Sponsorship	IEEE Power Engineering Society
Starting Page	537
Ending Page	546
Page Count	10
File Size	1267850
File Format	PDF
ISSN	08858977
Volume Number	22
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lightning Conductors Transmission lines Frequency estimation Poles and towers Voltage EMTP Electromagnetic analysis Transient analysis Phase estimation surges Insulation lightning overvoltage protection parameter estimation power transmission lines shielding failure
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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