New principle for high resistance earth fault detection during fast power swings for distance protection.

被引：57

作者：

Mechraoui, A

Thomas, DWP

机构：

[1] Department of Electrical and Electronic Engineering, University of Nottingham, Nottingham

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 1997年 / 12卷 / 04期

关键词：

D O I：

10.1109/61.634160

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 [电气工程]; 0809 [电子科学与技术];

摘要：

The combined effects of a high impedance ground fault condition and a fast power swing condition cause the apparent impedance 'seen' by distance protection schemes to vary over a wide range. Previous research work has shown that detection and location of high impedance faults during power swings is very difficult. A new principle for high impedance fault detection during fast power swings is presented which overcome these deficiencies. This method forms a part of a complete power swing relaying scheme and can be implemented on standard relaying hardware. Results are presented based on extensive simulation studies carried out on a typical 400 kV system, using the Electromagnetic Transient program (EMTP).

引用

页码：1452 / 1457

页数：6

共 9 条

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