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Research on Calculation Model of the Length of Flexible Bus for Substations |
Zhang Chunning, Zhou Qinfen, Zhang Zheng, Zhong Yu, Yuan Xu |
Jiangsu Hongyuan Electric Power Construction Supervision Co., Ltd, Nanjin 210036 |
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Abstract In the operation system of medium-large substation, the flexible bus is an important carrier for collection, distribution and transmission of electrical energy. Due to weather and geological conditions are complex in outdoor space, then the connection way of conductor used by flexible bus. The flexible bus arc sag size is an important standard to detect the quality of the installation. It will increase the wire tension and affect the safety distance when it’s too small or large. At the same time, the number and weight of insulator and the high span height difference will have a greater impact on the flexible bus arc sag. And a simple catenary model can not calculate the arc sag and the cutting length of flexible bus accurately. This paper introduces the basic calculation method of flexible bus arc sag briefly. Based on this, a composite model is proposed to calculate the cutting length of flexible bus accurately, which to improve the flexible bus installation quality and ensure the reliability of power supply system. Finally, the proposed model is verified in engineering practice.
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Published: 28 June 2017
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Cite this article: |
Zhang Chunning,Zhou Qinfen,Zhang Zheng等. Research on Calculation Model of the Length of Flexible Bus for Substations[J]. Electrical Engineering, 2017, 18(6): 54-58.
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URL: |
http://dqjs.cesmedia.cn/EN/Y2017/V18/I6/54
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[1] 刘本粹, 喻新强, 郭日彩, 等. 扩径导线在超高压大容量输电工程中的应用展望[J]. 电网与水力发电进展, 2007, 23(11): 1-5. [2] 陶少刚. 导线弧垂线形及简化计算[J]. 中国农村水利水电, 1996(5): 39-41. [3] 黄贤球. 几种变电站软母线档距测量方法的比较[J]. 广东电力, 2000, 13(2): 57-58. [4] 姜广智. 悬链线方程在高压架空输电线路中的应用[J]. 科学技术与工程, 2008, 8(8): 1960-1964. [5] 万建成, 牛海军, 李新民. 变电站用扩径软母线弧垂和张力特性[J]. 电网技术, 2010, 34(4): 214-217. [6] 吴祎琼, 黄宝莹, 邱宁, 等. 交流特高压变电站1000kV导线的选择[J]. 电网技术, 2007, 31(9): 1-5. [7] 张斌, 张军, 李黎, 等. 1000kV特高压变电站软母线施工放线下料长度计算的探讨[J]. 电力系统保护与控制, 2008, 36(18): 81-83. [8] 刘树林. 500kV变电站软母线架设施工及母线弧垂的控制[J]. 山西电力技术, 1994, 14(1): 17-19. |
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