LIGHTNING-INDUCED VOLTAGE ON AN OVERHEAD WIRE DEPENDENT ON GROUND CONDUCTIVITY

被引：39

作者：

ISHII, M

MICHISHITA, K

HONGO, Y

OGUMA, S

机构：

[1] SHIZUOKA UNIV,HAMAMATSU,SHIZUOKA 432,JAPAN

[2] TOHOKU ELECT POWER CO INC,CTR ELECT TECHNOL RES & DEV,SENDAI,MIYAGI,JAPAN

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1994年 / 9卷 / 01期

关键词：

INDUCED VOLTAGE; LIGHTNING; DISTRIBUTION LINE; GROUND CONDUCTIVITY; REDUCED-SCALE MODEL;

D O I：

10.1109/61.277685

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：

Lightning-induced voltage waveforms on an overhead wire are analyzed by solving the Telegrapher's equation, in combination with numerical calculations of electric fields from return stroke currents as inducing sources. Based on an equivalent circuit newly developed for an explanation of this method, the roles of the vertical and horizontal electric fields in generating the induced voltage are studied, respectively. By numerical calculations, it is pointed out that the crest value of the lightning-induced voltage waveform at the end of the line is greatly affected by the ground conductivity and the lightning striking points. The accuracy of the computed results is ensured by comparison with the experimental results obtained from a geometrical model on a finitely conducting ground.

引用

页码：109 / 115

页数：7

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