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
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页码:1 / 3
页数:2
相关论文
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