Dubanton's and Wait's Approximations of the Earth Return Impedance Used for Evaluating Transmission-Line Wave Propagation Parameters

被引：3

作者：

Brandao Faria, J. A. ^{[1
]}

机构：

[1] Univ Lisbon, Inst Super Tecn, Inst Telecomunicacoes, P-1049001 Lisbon, Portugal

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2015年 / 30卷 / 06期

关键词：

Circular tunnels; Dubanton's approximation; overhead lines; soil return impedance; Wait's approximation; CIRCULAR TUNNEL;

D O I：

10.1109/TPWRD.2015.2449758

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, a new theoretical support of the well-known Dubanton's approximation widely used in the evaluation of the earth return impedance of transmission lines is provided. For that purpose, the electromagnetic-wave theory of guided cylindrical waves along an axial conductor inside a circular tunnel, developed by J. Wait, is utilized, considering that the tunnel radius is very large and that only the fundamental quasi-transverse electric-magnetic mode propagates.

引用

页码：2600 / 2601

页数：2

共 9 条

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