INVESTIGATION OF IMPEDANCE-DIFFERENTIAL PROTECTION’S ALGORITHM AS A FAULT LOCATOR FOR DOUBLE-CIRCUIT TRANSMISSION LINE

被引：0

作者：

Herlender J. ^{[1
]}

Izykowski J. ^{[1
]}

Brusilowicz B. ^{[1
]}

机构：

[1] Wroclaw University of Science and Technology, Wroclaw

来源：

Technical Electrodynamics | 2020年 / 2020卷 / 06期

关键词：

algorithm; ATP-EMTP; double-circuit line; fault location; negative and zero sequences; simulation; transmission line;

D O I：

10.15407/techned2020.06.057

中图分类号：

学科分类号：

摘要：

This paper deals with an analysis of impedance-differential protection algorithm applied to locate faults on a double-circuit transmission line. In particular, the study of fault location accuracy for the case of using the relation between currents for negative-sequence not for zero-sequence, as it was presented so far, is provided. It results from the well-known fact that zero-sequence impedances are in practice considered as quite unreliable data. Therefore, one has to limit usage of zero-sequence impedance parameters as much as possible. Such approach was applied in this paper and therefore theuse of the additional relation of currents for negative-sequence is under investigation. The fault signals from ATP-EMTP simulation on the sample double-circuit transmission line was applied for evaluating the fault location accuracy. References 8, figures 4, table 1. © J. Herlender

引用

页码：1 / 3

页数：2

共 8 条

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