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同杆双回线上零序功率方向继电器的误判问题
引用本文:孔伟彬,朱晓彤,张俊洪,程宇,凌峰.同杆双回线上零序功率方向继电器的误判问题[J].电力系统自动化,2002,26(22):45-48.
作者姓名:孔伟彬  朱晓彤  张俊洪  程宇  凌峰
作者单位:1. 广东省电力设计研究院,广东省广州市,510600
2. 海军工程大学,湖北省武汉市,430033
3. 鞍山电业局,辽宁省鞍山市,114002
4. 无锡供电公司,江苏省无锡市,214061
摘    要:零序功率方向继电器是线路保护中的一个重要元件。文中用六序分量法分析了同杆双回线上零序功率方向继电器的性能。结果表明,在同杆双回线上发生三相三导线及三相四导线故障、三相五导线跨线故障时,有一回线的零序功率方向会拒动。动模试验证实了理论分析的结果。

关 键 词:继电保护    零序功率方向继电器    同杆双回线    六序分量
收稿时间:1/1/1900 12:00:00 AM
修稿时间:1/1/1900 12:00:00 AM

WRONG JUDGEMENT OF ZERO SEQUENCE DIRECTIONAL RELAY ON DOUBLE-CIRCUIT LINE ON THE SAME POLE
Kong Weibin ,Zhu Xiaotong ,Zhang Junhong ,Cheng Yu ,Ling Feng.WRONG JUDGEMENT OF ZERO SEQUENCE DIRECTIONAL RELAY ON DOUBLE-CIRCUIT LINE ON THE SAME POLE[J].Automation of Electric Power Systems,2002,26(22):45-48.
Authors:Kong Weibin  Zhu Xiaotong  Zhang Junhong  Cheng Yu  Ling Feng
Affiliation:Kong Weibin 1,Zhu Xiaotong 2,Zhang Junhong 2,Cheng Yu 3,Ling Feng 4
Abstract:The zero sequence directional relay is an important relay component for transmission line. Based on the method of six sequence fault component, this paper analyses the performance of zero sequence directional relay on double circuit line on the same pole (DLSP). The result shows that faults, including three phases for three conductors or three phases for four conductors or three phases for five conductors faults, will be wrongly judged as the reverse faults by the zero sequence directional relay on one single circuit line of the DLSP. The dynamic simulation results prove the conclusion.
Keywords:protective relaying  zero sequence directional relay  double  circuit line on the same pole (DLSP)  six sequence fault component
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