Enhanced analytical design method for overhead line conductors in nonlevel spans

Motlis, Y.; Keselman, L.M.

doi:10.1109/tdc.1996.545960

Cited by 1 publication

(2 citation statements)

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“…The first group includes methods to reduce the force of ice adhesion to the conductor (ice-phobic coatings [25] or special polymer coatings [26]). The idea behind the second group of methods is to prevent the freezing of cooled water droplets falling on the surface of the conductors (using a thin layer of liquid lowering the freezing point [7] or maintaining a positive temperature of the conductor just above the freezing point during icing [27]). The most effective of these is the Joule method [27].…”

Section: Introductionmentioning

confidence: 99%

“…The idea behind the second group of methods is to prevent the freezing of cooled water droplets falling on the surface of the conductors (using a thin layer of liquid lowering the freezing point [7] or maintaining a positive temperature of the conductor just above the freezing point during icing [27]). The most effective of these is the Joule method [27]. Heat is caused by the flow of current through the conductor.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bulletin of the Polish Academy of Sciences: Technical Sciences

Ciesielka,

Gołaś,

Szopa

et al. 2020

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Currently, overhead lines dominate in the Polish medium and low voltage distribution networks. Maintaining their high reliability constitutes a very important challenge, especially under the severely changing climate conditions. An overhead power line exposed to high ice and rime loads has been considered. Using the finite element method (FEM), mechanical reliability of the distribution infrastructure was examined under various atmospheric conditions. Loads under the stressful conditions of rime, ice and wind were determined for the weakest section of the 30 kV overhead line, which consisted of concrete poles and ACSR conductors. SAIDI and SAIFI reliability indices and costs were determined for several variants of object reconstruction. The results allowed for determination of a solution relying on relocating the cables of all lateral branches and main line ice protection, through a system based on a weather-coordinated increase of the electrical load. To verify the solution proposed, a field experiment was conducted. The experiment confirmed the effectiveness of the solution proposed that appears to be universal. The paper is a result of synergic cooperation of two academic teams, i.e. a mechanical and electrical power engineering one, and the Distribution System Operator (DSO).

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