Analysis of high-ampacity and low-sag conductors of 275 kV overhead transmission lines using reconductoring technique

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2025-04-19 DOI:10.1016/j.epsr.2025.111719

Matiullah Ahsan , Md Nor Ramdon Baharom , Ihsan Ullah Khalil , Zainab Zainal

引用次数: 0

Abstract

This research investigates the potential of advanced conductors to enhance the efficiency of 275 kV overhead transmission lines (OTL) in Malaysia amid urban expansion and growing electricity demand. With limited land for new infrastructure, reconductoring existing lines offers a practical solution. Performance comparisons highlight that ACCC/TW Dublin, 3 M ACSS/TW Avocet, and 3 M ACCR Curlevv significantly outperform ACSR Zebra in ampacity at a conductor working temperature of 75 °C. While 3 M ACCR Curlevv provides a notable ampacity upgrade, ACCC/TW Dublin and ACSS/TW Avocet show superior sag performance. These conductors, along with 3 M ACCR Drake, emerge as optimal ACSR Zebra replacements, combining similar diameters with improved thermal and mechanical characteristics. The findings support reconductoring as a feasible strategy for optimizing power delivery within space-constrained environments.

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275 kV架空输电线路高容低凹陷导线重导技术分析

这项研究调查了先进导体在马来西亚城市扩张和电力需求不断增长的情况下提高275千伏架空输电线路（OTL）效率的潜力。在新基础设施用地有限的情况下，对现有线路进行重导提供了一个切实可行的解决方案。性能比较表明，在75°C的导体工作温度下，ACCC/TW Dublin、3 M ACSS/TW Avocet和3 M ACCR Curlevv的电容性能明显优于ACSR Zebra。虽然3 M ACCR Curlevv提供了显着的容量提升，但ACCC/TW Dublin和ACSS/TW Avocet表现出更好的凹陷性能。这些导体与3m ACCR Drake一起，成为ACSR Zebra的最佳替代品，具有相似的直径和更好的热学和机械特性。研究结果表明，在空间受限的环境中，重导是一种优化电力输送的可行策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.