Analysis of Conductive Interference nearby High Voltage Power Lines under Fault Condition

송전선로 지락시 철탑 인근의 대지전위간섭 해석모델

  • Published : 2008.07.16

Abstract

In case of a line-to-ground fault at transmission lines, a portion of fault current will flow into the earth through the footings of the faulted tower causing electrical potential rise nearby the faulted tower footings. In this situation, any buried pipelines or structures nearby the faulted tower can be exposed to the electrical stress by earth potential rise. Although many research works has been conducted on this phenomena, there has been no clear answer of the required separation distance between tower footings and neary buried pipeline because of its dependancy on the soil electrical charactersics of the concerned area and the faulted system.

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