NEW APPROACH TO DIRECTIONAL FAULT LOCATION FOR OVERHEAD POWER DISTRIBUTION FEEDERS

被引：15

作者：

JOHNS, AT ^{[1
]}

LAI, LL ^{[1
]}

ELHAMI, M ^{[1
]}

DARUVALA, DJ ^{[1
]}

机构：

[1] CITY UNIV LONDON,DEPT ELECT ELECTR & INFORMAT ENGN,LONDON EC1V 0HB,ENGLAND

来源：

IEE PROCEEDINGS-C GENERATION TRANSMISSION AND DISTRIBUTION | 1991年 / 138卷 / 04期

关键词：

FAULT LOCATION; DETECTION; OVERHEAD LINES;

D O I：

10.1049/ip-c.1991.0044

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：

The results of investigations into a new approach to fault localisation in overhead distribution systems are presented. The method proposed does not use the fundamental power frequency currents but is based on detecting fault-induced high frequency components on distribution lines. This should enable the detection of discharges from the low-level breakdown of insulators, which cannot be detected by conventional methods. The fault direction is determined by filtering the output voltage from stack tuners and comparing the resulting signal levels on each side of a tuned trap circuit unit. Simulation results are used to illustrate the basic features of the performance of the new scheme on a simple radial 11 kV feeder system.

引用

页码：351 / 357

页数：7

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