Mitigating Influenced Voltages on Pipelines Adjacent to Overhead Lines: An Analysis of different Fault Situations

Volume 8, Issue 5, October 2024     |     PP. 174-185      |     PDF (1493 K)    |     Pub. Date: September 19, 2024
DOI: 10.54647/isss120363    46 Downloads     1919 Views  

Author(s)

T. Huecker, University of Applied Sciences – HTW-Berlin, Berlin, Germany

Abstract
Pipelines designed for the transportation of oil, natural gas, or hydrogen often run parallel to high voltage overhead lines for extended distances. Modern protective measures such as polyethylene coating and active corrosion prevention are used to extend their expected lifetime. Short-circuits, lightning currents, and switching transients on overhead transmission lines (OHTL) can lead to substantial induced voltages on pipelines. To avoid potentially lethal over-voltages, pipelines are grounded at regular intervals. However, traditional grounding methods, involving deep drillings or extensive flat earth electrodes, can be prohibitively expensive. This paper employs a bespoke software tool to calculate pipeline over-voltages, optimizing the placement of grounding points. Simulations are conducted to assess potential changes in pipeline voltages during short-circuit and lightning conditions, particularly when AC overhead lines are upgraded to DC applications.

Keywords
Pipeline Voltages, Overhead Lines, AC, HVDC, Lightning

Cite this paper
T. Huecker, Mitigating Influenced Voltages on Pipelines Adjacent to Overhead Lines: An Analysis of different Fault Situations , SCIREA Journal of Information Science and Systems Science. Volume 8, Issue 5, October 2024 | PP. 174-185. 10.54647/isss120363

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