The energy based directional protection of transmission lines

被引：0
|
作者：
He, BT [1 ]
Jin, HF [1 ]
Li, J [1 ]
机构：
[1] Zhejiang Univ, Dept Elect Engn, Hangzhou 310027, Peoples R China
来源：
POWERCON '98: 1998 INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY - PROCEEDINGS, VOLS 1 AND 2 | 1998年
关键词：
ultra high speed directional relay; energy directional relay; transmission line protection;
D O I：
暂无
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 paper we present an ultra high speed relay based on the energy function in the fault component. The fault direction can be herd for a long time after the fault inception and which will not be influenced by the transient harmonics. To resolve the problems caused by the unbalanced situation in system swing, we propose an adaptive determination of fault direction. As a result, the speed and the security are both improved. Computer simulations with the electromagnetic transients program (EMPT) are also included.
引用
收藏
页码：1163 / 1167
页数：5
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