﻿ 土壤电阻率对特高压输电线路塔顶电位的影响

# 土壤电阻率对特高压输电线路塔顶电位的影响Influence of Soil Resistivity on the Potential of Tower Overhead in UHV Transmission Line

Abstract: This paper established the equivalent model of the inductance effect and the spark effect of the grounding connector when attacked by lightning current. Meanwhile, the article explored the lightning simulation calculation model of the ultra-high voltage transmission lines, and analyzed the influence between the resistance rate and the tower potential when hit by lightning. The result indicates that: when the resistance rate of the soil is less, the tower potential increases greatly with the increase of the resistance rate; and when the resistance rate of the soil is bigger, it increases gently. So it is necessary to design the lightning protection based on the resistance rate of the soil.

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