| 导线相序及换位方式对地线损耗的影响 |
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| 引用本文： | 蒋陶宁,徐亮,卞鹏,贾佳,康东升,孙成秋,李军.导线相序及换位方式对地线损耗的影响[J].电力建设,2011,32(11):16-20. |
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| 作者姓名： | 蒋陶宁 徐亮 卞鹏 贾佳 康东升 孙成秋 李军 |
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| 作者单位： | 国核电力规划设计研究院,北京市,100032 |
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| 摘 要： | 交流输电线路由于相线和地线的磁耦合而导致的地线损耗,逐渐成为电力网络经济运行的一个指标.目前研究者提出了多种新的地线接线方式来降低此损耗,这些措施主要包括分段绝缘和地线换位.以特高压线路为例,研究了不同相序下地线的感应电动势特性和不同导线换位方式下的地线损耗特性.指出了导线采用逆相序反向换位的方式,地线采用普通地线绝缘...
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| 关 键 词： | 相序 导线换位 地线接线方式 地线感应电流 地线损耗 |
Effects of Phase Sequences and Conductor Transposition Modes on the Characteristics Power Loss of Ground Wire |
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| JIANG Taoning,XU Liang,BIAN Peng,JIA Jia,KANG Dongsheng,SUN Chengqiu,LI Jun.Effects of Phase Sequences and Conductor Transposition Modes on the Characteristics Power Loss of Ground Wire[J].Electric Power Construction,2011,32(11):16-20. |
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| Authors: | JIANG Taoning XU Liang BIAN Peng JIA Jia KANG Dongsheng SUN Chengqiu LI Jun |
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| Affiliation: | (State Nuclear Electric Power Planning Design ＆ Research Institute,Beijing 100032,China) |
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| Abstract: | The power loss of ground wire,produced by the magnetic coupling between phase line and ground wire,is becoming a more and more important parameter for economical operation of the power network.There are a variety of measures to reduce the power loss,such as graded insulation and ground wire transposition.An example of UHV transmission line is presented in this paper to investigate the characteristics of induced electromotive force of ground wire and power loss under different phase sequences and conductor transposition modes.It is pointed out that the power loss can be reduced to a minimum by negative phase sequence and reverse transposition of conductor,as well as graded insulation and transposition of ground wire. |
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| Keywords: | phase sequence conductor transposition dispositions of ground wire induced currents of ground wire power loss of ground wire |
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