NDLI: A Holistic Method for Conductor Ampacity and Sag Computation on an OHL Structure

Content Provider	IEEE Xplore Digital Library
Author	Kopsidas, K. Rowland, S.M. Boumecid, B.
Copyright Year	1986
Abstract	The rating current (ampacity) of a conductor erected on a particular overhead line (OHL) structure installed at a specified location is influenced by the conductor, the OHL structure, as well as weather and operational parameters. Many studies have been carried out regarding calculating an aerial bare conductor's ampacity at a steady-state conductor temperature, but without considering the OHL structure as part of the system. In this paper, a holistic methodology for calculating the conductor's ampacity and sag at any temperature and power frequency, erected onto a prespecified OHL structure is developed, considering together the mechanical and electrical parameters of the overall system. This methodology incorporates the conductor's basic material properties allowing the calculations to be applied to newly developed high-temperature low-sag composite conductors. In this way, it becomes possible to identify, at the system level, the potential benefits that may result from the improved performance of these conductors as well as to indicate new sizes that may better fit a prespecified system, optimizing its performance. The methodology is also validated with a real system application, resulting in correct predictions of the performance of a four-span double-line system.
Sponsorship	IEEE Power Engineering Society
Starting Page	1047
Ending Page	1054
Page Count	8
File Size	1334016
File Format	PDF
ISSN	08858977
Volume Number	27
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Conductors Meteorology Loading Aluminum Thermal conductivity Poles and towers Temperature uprating Aging ampacity bare conductors conductor creep high temperature low sag overhead line reconductoring re-tensioning sag tension thermal rating upgrating
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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