铜包铝复合材料用于特高压携带型短路接地线的轻型化方案研究
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TM755

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国家电网公司科技项目(SGTYHT/15JS191)


Research on lightweight scheme of copperclad aluminum composites in UHV portable earthing and shortcircuiting wires
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    摘要:

    针对现有携带型短路接地线(简称接地线)在特高压线路上挂接时存在质量重、不便于携带安装的问题,该文提出使用铜包铝复合材料用作特高压接地线导体的轻型化方案。对铜及铜包铝材料在短时间下的熔断电流进行理论计算及试验,并对典型1 000 kV同塔双回线路接地线短路电热耦合暂态过程进行仿真分析。研究结果表明:当导线截面大于4 mm2、熔断时间小于1.5 s时,接地线导体材料熔断电流试验值与理论计算值基本一致。采用CCA10铜包铝接地线相比铜接地线截面积增大71.1%,但质量减轻36.2%。对于1 000 kV同塔双回线路单回停电检修的情况,可选择50 mm2的铜接地线或95 mm2的CCA10铜包铝接地线,且铜包铝接地线安全裕度更大。

    Abstract:

    Aiming at the heavy weight and inconvenience when carrying and installing copper earthing wires on the UHV transmission lines, this paper proposes a lightweight method for UHV earthing wire conductor by using the copper clad aluminum(CCA) as composite materials. Firstly, theoretical calculations and experiments of the fusing current in a short time for copper and CCA material are performed. Then, the transient electro thermal coupling process of the earthing wire shortcircuit of typical 1 000 kV doublecircuit line is simulated. The results show that the theoretical value of the earthing wire conductor's fusing current corresponds with the test value on condition of the conductor cross section greater than 4 mm2 as well as melting time less than 1.5 s. The CCA10 earthing wires present 71% cross section increase and 36.2% weight reduction compared with copper wires. In the case of singlecircuit poweroff maintenance of 1 000 kV doublecircuit line, it is suggested to select 50 mm2 copper wire or 95 mm2 CCA10 wire, and the CCA earthing wire has greater safety margin.

    参考文献
    [1] 刘振亚.中国特高压交流输电技术创新[J].电网技术,2013,37(3):18.LIU Zhenya.Innovation of UHVAC transmission technology in China[J].Power System Technology,2013,37(3):18.
    [2] 刘振亚.特高压交直流电网[M].北京:中国电力出版社,2013.
    [3] 李金亮,邹德华,刘夏清,等.500 kV/220 kV同塔四回混压输电线路检修作业安全防护研究[J].电力科学与技术学报,2016,31(2):134140.LI Jinliang,ZOU Dehua,LIU Xiaqing,et al.Research on security protection of maintenance work on 500 kV/220 kV fourcircuit mixedvoltage transmission lines on the same tower[J].Journal of Electric Power Science and Technology,2016,31(2):134140.
    [4] 杨新伟,刘伟娜.110 kV同塔四回输电线路检修作业与安全防护分析[J].电力科学与技术学报,2017,32(2):166172.YANG Xinwei,LIU Weina.Security analysis on maintenance operation for 110 kV fourcircuit transmission lines on the same tower[J].Journal of Electric Power Science and Technology,2017,32(2):166172.
    [5] 李金雄.携带型短路接地线应用技术[M].北京:中国电力出版社,2008.
    [6] 朱仲鸣.关于携带型短路接地线额定短路电流值取值问题的讨论[J].华东电力,1994(10):2325.ZHU Zhongming.The discussion of rated shortcircuit current for portable earthing and shortcircuiting wires[J].East China Electric Power,1994(10):2325.
    [7] SD 332—89.携带型短路接地线技术标准[S].
    [8] ASTM F 855—15.Standard specifications for temporary protective grouds to be used on deenergized electric power lines and equipment[S].
    [9] IEC 61230:2008.Live workingportable equipment for earthing and shortcircuiting[S].
    [10] Babrauskas V,Wichman I S.Fusing of wires by electrical current[C]//Fire and Materials 12th International Conference and Exhibition,San Francisco,USA,2011.
    [11] Choi C S,Kim H K,Kim D W,et al.Analysis of dispersive characteristics and structures of copper wire melted by overcurrent[J].IEEJ Transations on Electrical and Electronic Engineering,2005,125(12):13271331.
    [12] Wright A,Newbery P G.Electric fuses(3rd Ed.)[M].Stevenage,UK:Institution of Electrical Engineers,2004.
    [13] Tanaka T,Yamasaki M.Modeling of fuses for melting time and fusing current analysis[C].IEEE Telecommunications Energy Conference(INTLEC),Chicago,USA,2004.
    [14] DL/T 879—2004.带电作业用便携式接地和接地短路装置[S].
    [15] Gibson A.The economics of copper clad aluminum bometallic cables[J].Wire & Cable Technology International,2005,33(4):8283.
    [16] 张建宇,姚金金,曾祥勇,等.铜包铝复合材料研究进展[J].中国有色金属学报,2014,24(5):12751284.ZHANG Jianyu,YAO Jinjin,ZENG Xiangyong,et al.Research progress of copper cladding aluminum composites[J].The Chinese Journal of Nonferrous Metals,2014,24(5):12751284.
    [17] 寿伟春,李向丽.铜包铝线在射频电缆中的应用[J].光纤与电缆及其应用技术,2000(2):4045.SHOU Weichun,LI Xiangli.The application of CCA wire in coaxial cable[J].Optical Fiber & Electric Cable,2000(2):4045.
    [18] 董永军,王建伟,黄纯德,等.铜包铝复合材料热力学计算稳态分析[J].稀有金属,2014,38(6):10601065.DONG Yongjun,WANG Jianwei,HUANG Chunde,et al.Thermodynamic equilibrium calculation of copper clad aluminum composite[J].Chinese Journal of Rare Metals,2014,38(6):10601065.
    [19] 郑传涛,戴雅康.铜包铝线特性对铜包铝电缆使用性能的影响[J].电线电缆,2016(6):47.ZHENG Chuantao,DAI Yakang.The characteristics of copper clad aluminum wire effect on the service performance of copper clad aluminum cable[J].Electic Wire & Cable,2016(6):47.
    [20] GB/T 3953—2009.电工圆铜线[S].
    [21] GB/T 3955—2009.电工圆铝线[S].
    [22] GB/T 29197—2012.铜包铝线[S].
    [23] 赵正树,戴雅康.铜包铝线退火工艺的试验研究[J].电线电缆,2011(6):68,23.ZHAO Zhengshu,DAI Yakang.Study of copper clad aluminum wire annealing technology[J] Electic Wire & Cable,2011(6):68,23.
    [24] 卢秋朋,张清鹏,秦润杰.传输线中趋肤效应的介绍及仿真[J].电子测量技术,2015,38(6):2730.LU Qiupeng,ZHANG Qingpeng,QIN Runjie.Introduction and simulation of skin effect of transmission line[J].Electronic Measurement Technology,2015,38(6):2730.
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朱建军,余光凯,刘 庭,等.铜包铝复合材料用于特高压携带型短路接地线的轻型化方案研究[J].电力科学与技术学报,2020,35(2):170-177.
ZHU Jianjun, YU Guangkai, LIU Ting, et al. Research on lightweight scheme of copperclad aluminum composites in UHV portable earthing and shortcircuiting wires[J]. Journal of Electric Power Science and Technology,2020,35(2):170-177.

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  • 在线发布日期: 2020-09-03
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