Ground distance relay compensation based on fault resistance calculation

被引：68
|
作者：
Eissa, M. M. [1 ]
机构：
[1] Helwan Univ, Dept Elect Engn, Fac Engn, Cairo 11421, Egypt
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2006年 / 21卷 / 04期
关键词：
active power; distance protection; fault resistance; impedance measurement;
D O I：
10.1109/TPWRD.2006.874621
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 fault resistance introduces an error in the fault distance estimate, and hence may create an unreliable operation of a distance relay. A new compensation method based on fault resistance calculation is presented. The fault resistance calculation is based on monitoring the active power at the relay point. The compensated fault impedance measures accurately the impedance between the relay location and the fault point. The relay has shown satisfactory performances under various fault conditions especially for the ground faults with high fault resistance. This new compensation method avoids the under-reach problem in ground distance relays.
引用
收藏
页码：1830 / 1835
页数：6
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