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Energies 2017, 10(9), 1381; https://doi.org/10.3390/en10091381

Use of Rod Compactors for High Voltage Overhead Power Lines Magnetic Field Mitigation

Department of Industrial Engineering, University of Padova, 35131 Padova, Italy
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Author to whom correspondence should be addressed.
Academic Editor: Rui Xiong
Received: 2 August 2017 / Revised: 24 August 2017 / Accepted: 6 September 2017 / Published: 12 September 2017
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

In the last decades, strengthening the high voltage transmission system through the installation of new overhead power lines has become critical, especially in highly developed areas. Present laws concerning the human exposure to electric and magnetic fields introduce constraints to be considered in both new line construction and existing systems. In the paper, a technique for passive magnetic field mitigation in areas close to overhead power lines is introduced, fully modelled and discussed through a parametric analysis. The investigated solution, which basically consists in approaching line conductors along the span making use of rod insulators, is applicable on both existing and under-design overhead lines as an alternative to other mitigating actions. Making use of a 3-dimensional representation, the procedure computes both positions of phase conductors and forces acting on insulators, towers, conductors and compactors, with the aim of evaluating the additional mechanical stress introduced by the compactors. Finally, a real case study is reported to demonstrate and quantify the benefits in terms of ground magnetic field reduction achievable by applying the proposed solution, in comparison to a traditional configuration. Furthermore, using compactors to passively reduce the magnetic field is simple to be applied, minimally invasive and quite inexpensive as regards to alternative mitigating actions. View Full-Text
Keywords: compactors; magnetic field passive mitigation; overhead lines; rod insulators; transmission system compactors; magnetic field passive mitigation; overhead lines; rod insulators; transmission system
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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MDPI and ACS Style

Bignucolo, F.; Coppo, M.; Savio, A.; Turri, R. Use of Rod Compactors for High Voltage Overhead Power Lines Magnetic Field Mitigation. Energies 2017, 10, 1381.

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