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同杆并架双回线跨线不接地故障的距离保护
引用本文:朱晓彤,郑玉平,张俊洪,张春艳,陈庆军.同杆并架双回线跨线不接地故障的距离保护[J].电力系统自动化,2003,27(19):61-64,68.
作者姓名:朱晓彤  郑玉平  张俊洪  张春艳  陈庆军
作者单位:1. 海军工程大学,湖北省武汉市,430033
2. 国电自动化研究院/南瑞集团公司,江苏省南京市,210003
3. 鞍山电业局,辽宁省鞍山市,114002
摘    要:从理论上分析了同杆并架双回线跨线不接地故障时距离继电器测量阻抗的变化规律。提出只有将高频通道、超范围距离元件配合构成允许式纵联距离保护,才能保护同杆双回线跨线不接地故障。还对超范围阻抗如何整定进行了讨论。EMTDC仿真试验证明了理论分析结果是正确的。

关 键 词:距离保护  同杆并架双回线  不接地故障
收稿时间:1/1/1900 12:00:00 AM
修稿时间:1/1/1900 12:00:00 AM

DISTANCE PROTECTION OF DOUBLE-CIRCUIT LINE ON THE SAME POLE WHEN PHASE TO PHASE FAULT OCCURS
Zhu Xiaotong ,Zheng Yuping ,Zhang Junhong ,Zhang Chunyan ,Chen Qingjun.DISTANCE PROTECTION OF DOUBLE-CIRCUIT LINE ON THE SAME POLE WHEN PHASE TO PHASE FAULT OCCURS[J].Automation of Electric Power Systems,2003,27(19):61-64,68.
Authors:Zhu Xiaotong  Zheng Yuping  Zhang Junhong  Zhang Chunyan  Chen Qingjun
Affiliation:Zhu Xiaotong 1,Zheng Yuping 2,Zhang Junhong 1,Zhang Chunyan 3,Chen Qingjun 3
Abstract:This paper analyses the rule of variations measuring impedance of distance relay when phase to phase fault occurs between two lines on double circuit line on the same pole (DLSP). This paper presents that the protection for the phase to phase fault should be composed of high frequency teleprotection channel and overreached distance relay. The setting of overreached impedance is also discussed. EMTDC dynamic simulation tests prove that the conclusion is correct.
Keywords:distance protection  double circuit line on the same pole  phase to phase fault
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