Aged ACSR conductors. I. Testing procedures for conductors and line items

Harvard, D.G.; Bellamy, G.; Buchan, P. G.; Ewing, Holly A.; Horrocks, Don; Krishnasamy, S.G.; Motlis, J.; Yoshiki-Gravelsins, K.S.

doi:10.1109/61.127052

Cited by 22 publications

(8 citation statements)

References 1 publication

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“…Conventional conductors, such as the ACSR conductor, usually work, 90°C, because the aluminium anneals, are above this temperature. The ACSR is the oldest overhead cable built before 1950 [4]. The inner steel core is subject to corrosion and can be prevented using a corrosion detector [4].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of High Temperature Low Sag Conductor

Boopathy

Karnal

2021

Preprint

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The conductors that can embrace high temperature low sag characteristics are known as HTLS conductors. The coefficient of thermal expansion of High temperature low sag conductor is lesser than that of conventional conductors. This thereby results in reduced sag with a high rating. Among some HTLS conductor accessible, the Aluminium Conductor Composite Core (ACCC) conductor has a lightweight inner composite core. The geometric model of the ACCC/TW conductor is modeled and analyzed using finite element analysis. The ACC/TW conductor is composed of an inner composite core surrounded by two aluminium layers wound in a clockwise and anti-clockwise direction. The inner composite core is made of glass carbon composite material. The core is surrounded by the first layer consisting of 8 individual strands wound in a clockwise direction. The second layer consists of 14 individual aluminium strands wound in an anticlockwise direction. In this paper, the individual core and assembled conductor are analyzed using FEA software to predict the behavior under loading conditions. The attained outcomes are validated with the experimental work reported in the literature.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis of High Temperature Low Sag Conductor

Boopathy

Karnal

2021

Preprint

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“…Fatigue of the wires in an overhead conductor occurs within the couplings that restrict the conductor vibration from incurring a vortex-induced oscillation [1][2][3]. At present, most of the overhead conductors are made of steel-cored aluminum strands (ACSRs), and ACSR is widely used in power delivery systems around the world [4,5]. An aeolian vibration is one of the causes of a fretting fatigue failure of a conductor.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Modeling and Stress Analysis of a Six-Splitting Mid-Phase Jumper

Han

et al. 2020

Applied Sciences

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In this study, a finite element, fully three-dimensional solid modeling method was used to study the mechanical response of a steel-cored aluminum strand (ACSR) with a mid-phase jumper under wind load. A whole model (simplifying an ACSR into a solid cylinder) and a local model (modeling according to the actual structure of an ACSR) of the mid-phase jumper were established. First, the movement of the mid-phase jumper of the tension tower under wind load was studied based on the whole finite element model, and the equivalent Young’s modulus of the whole model was adjusted based on the local model. The results of the whole model were then imported into the local model and the stress distribution of each strand of the ACSR was analyzed in detail to provide guidance for the treatment measures. Therefore, the whole model and the local model complemented each other, which could reduce the number of model operations and ensure the accuracy of the results. Through the follow-up test to verify the results of the finite element simulation and the comparison of the simulation and fatigue test results, the causes of the broken strand of the ACSR were discussed. Although this modeling method was applied to the stress and deformation analysis of a mid-phase jumper in this study, it can be used to study the bending deformation of rope structures with a complex geometry and the main bending deformation. In addition, the effect of the friction coefficient on the bending of the mid-phase jumper was studied.

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“…Strategies for overhead conductor replacement have been investigated in [5][6][7][8]. An approach to estimate the remaining life of transmission line conductors using visual inspection and age information is presented in [5].…”

Section: Introductionmentioning

confidence: 99%

“…An approach to estimate the remaining life of transmission line conductors using visual inspection and age information is presented in [5]. Field and laboratory tests of aged ACSR (Aluminum Conductor Steel Reinforced) conductors, such as corrosion detection and tests of fatigue, tensile strength, torsional ductility, and electrical performance, are presented in [6]. The authors of [7] proposed a method to calculate conductors' remaining useful life using progressive degradation curves.…”

Section: Introductionmentioning

confidence: 99%

Methodology for Overhead Conductor Replacement Considering Operational Stress and Aging Characteristics

Vasquez

Jayaweera

2018

2018 IEEE Power &Amp; Energy Society General Meeting (PESGM)

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Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.

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Aged ACSR conductors. I. Testing procedures for conductors and line items

Cited by 22 publications

References 1 publication

Numerical Analysis of High Temperature Low Sag Conductor

Numerical Analysis of High Temperature Low Sag Conductor

Finite Element Modeling and Stress Analysis of a Six-Splitting Mid-Phase Jumper

Methodology for Overhead Conductor Replacement Considering Operational Stress and Aging Characteristics

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