Efficient modeling of a combined overhead cable line for grounding-system analysis

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2 Citazioni (Scopus)

Abstract

Simple compact models for combined overhead-cable lines supplying a substation are presented as an extension of a previous paper for grounding system analysis. The overhead line section can be equipped with uniform or combined ground wires, whereas the cable line section can consist of coated metal sheathed cables, with/without intermediate grounding, or uncoated metal sheathed cables in continuous contact with the earth. Besides the calculation of the earth current at the faulted substation, the proposed modeling method allows the evaluation of the leakage current at the transition station, where cables are connected to the overhead line, as well as at critical overhead line towers. In this manner, the effects of the so called “fault application transfer” phenomenon can be conveniently estimated at the design stage in order to assess the most appropriate safety conditions. Some numerical examples are given by applying a computer program based on the proposed methodology.
Lingua originaleEnglish
Numero di pagine6
Stato di pubblicazionePublished - 2008

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Electric grounding
Cables
Overhead lines
Systems analysis
Earth (planet)
Metals
Leakage currents
Towers
Computer program listings
Wire

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cita questo

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title = "Efficient modeling of a combined overhead cable line for grounding-system analysis",
abstract = "Simple compact models for combined overhead-cable lines supplying a substation are presented as an extension of a previous paper for grounding system analysis. The overhead line section can be equipped with uniform or combined ground wires, whereas the cable line section can consist of coated metal sheathed cables, with/without intermediate grounding, or uncoated metal sheathed cables in continuous contact with the earth. Besides the calculation of the earth current at the faulted substation, the proposed modeling method allows the evaluation of the leakage current at the transition station, where cables are connected to the overhead line, as well as at critical overhead line towers. In this manner, the effects of the so called “fault application transfer” phenomenon can be conveniently estimated at the design stage in order to assess the most appropriate safety conditions. Some numerical examples are given by applying a computer program based on the proposed methodology.",
keywords = "Grounding system, combined overhead cable lines",
author = "Buccheri, {Pietro Lucio} and Stefano Mangione and Liliana Mineo and {Di Silvestre}, {Maria Luisa} and {Casas Ospina}, Favio",
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T1 - Efficient modeling of a combined overhead cable line for grounding-system analysis

AU - Buccheri, Pietro Lucio

AU - Mangione, Stefano

AU - Mineo, Liliana

AU - Di Silvestre, Maria Luisa

AU - Casas Ospina, Favio

PY - 2008

Y1 - 2008

N2 - Simple compact models for combined overhead-cable lines supplying a substation are presented as an extension of a previous paper for grounding system analysis. The overhead line section can be equipped with uniform or combined ground wires, whereas the cable line section can consist of coated metal sheathed cables, with/without intermediate grounding, or uncoated metal sheathed cables in continuous contact with the earth. Besides the calculation of the earth current at the faulted substation, the proposed modeling method allows the evaluation of the leakage current at the transition station, where cables are connected to the overhead line, as well as at critical overhead line towers. In this manner, the effects of the so called “fault application transfer” phenomenon can be conveniently estimated at the design stage in order to assess the most appropriate safety conditions. Some numerical examples are given by applying a computer program based on the proposed methodology.

AB - Simple compact models for combined overhead-cable lines supplying a substation are presented as an extension of a previous paper for grounding system analysis. The overhead line section can be equipped with uniform or combined ground wires, whereas the cable line section can consist of coated metal sheathed cables, with/without intermediate grounding, or uncoated metal sheathed cables in continuous contact with the earth. Besides the calculation of the earth current at the faulted substation, the proposed modeling method allows the evaluation of the leakage current at the transition station, where cables are connected to the overhead line, as well as at critical overhead line towers. In this manner, the effects of the so called “fault application transfer” phenomenon can be conveniently estimated at the design stage in order to assess the most appropriate safety conditions. Some numerical examples are given by applying a computer program based on the proposed methodology.

KW - Grounding system

KW - combined overhead cable lines

UR - http://hdl.handle.net/10447/35290

M3 - Other

ER -