带电更换500kV同塔双回输电线路绝缘子工具研制
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摘要
随着500kV交流紧凑型线路相继投入运行,在其带电作业的部分停电检修方式、临界距离时机械装置代替作业人员进入电场开展带电作业方式的研究以及带电作业相关标准制定方面,其研究十分有限。为此,本文通过对架空导线的垂直荷载和水平张力进行计算分析,设计了一套用于带电更换500kV同塔双回输电线路绝缘子的成套工具。通过对各部分力学校核分析,证明设计方案安全可靠,可满足作业要求。最后,成套工具在现场进行了应用,证明了工具的实用性,有效提高了作业效率。
With the operation of 500 kV AC compact lines, the researches on the partial outage maintenance mode of live operation, the mechanical device replacing the operator to enter the electric field at the critical distance to carry out live operation mode research and the related standard formulation of live operation are limited. In this paper, the vertical load and horizontal tension of overhead conductors are calculated and analyzed, and a set of tool for replacing insulators of 500 kV double-circuit transmission lines on the same tower is designed. Through checking and analyzing each part of mechanics, it is proved that the design scheme is safe and reliable, and can meet the requirements of operation. Finally, the tool is applied in the field, which proves the practicability of the tool and effectively improves the operation efficiency.
With the operation of 500 kV AC compact lines, the researches on the partial outage maintenance mode of live operation, the mechanical device replacing the operator to enter the electric field at the critical distance to carry out live operation mode research and the related standard formulation of live operation are limited. In this paper, the vertical load and horizontal tension of overhead conductors are calculated and analyzed, and a set of tool for replacing insulators of 500 kV double-circuit transmission lines on the same tower is designed. Through checking and analyzing each part of mechanics, it is proved that the design scheme is safe and reliable, and can meet the requirements of operation. Finally, the tool is applied in the field, which proves the practicability of the tool and effectively improves the operation efficiency.
引文
[1]王嘉明. 500kV同塔双回带电作业技术与方法[J].四川电力技术, 2001(4):44-46.
[2]胡毅,聂定珍,王力农.500kV同塔双回紧凑型线路的带电作业安全距离[J].高电压技术, 2003(8):3-4, 11.
[3]陈坚平,向云,刘治国.一种可用于带电更换水平双分裂导线多联板双联绝缘子串的卡具[J].电气技术, 2017, 18(6):85-87.
[4]向云,陈坚平,刘治国,等.带电更换特高压双联V串绝缘子的方法与实践[J].电气技术,2017,18(5):136-139, 145.
[5]刘夏清,吴东,李辉,等.500kV紧凑型同塔双回输电线路带电作业人体体表电场分布特性研究[J].高压电器, 2017(7):87-94.
[6]钟万才.整体式带电更换500kV同塔双回交流线路耐张塔中上相整串绝缘子作业方法研究[J].通讯世界, 2016(15):158-160.
[7]胡毅,刘凯,彭勇,等.带电作业关键技术研究进展与趋势[J].高电压技术, 2014, 40(7):1921-1931.
[8]胡毅.输配电线路带电作业技术的研究与发展[J].高电压技术, 2006, 32(11):1-10.
[9]胡毅,刘凯,刘庭,等.带电作业技术研究与标准制定[J].高电压技术, 2012, 38(11):3015-3024.
[10]王星超,沈晓龙.带电作业工器具研制及带电作业实用化研究[J].湖北电力, 2011, 35(6):71-73.
[11]马军.±800kV特高压输电线路带电作业工器具改进[J].电力安全技术, 2018, 20(7):63-67.
[12]燕换平,曹国文,王晓丽.220kV输电线路带电作业工器具的研制与应用[J].内蒙古电力技术,2007(6):42-43.
[2]胡毅,聂定珍,王力农.500kV同塔双回紧凑型线路的带电作业安全距离[J].高电压技术, 2003(8):3-4, 11.
[3]陈坚平,向云,刘治国.一种可用于带电更换水平双分裂导线多联板双联绝缘子串的卡具[J].电气技术, 2017, 18(6):85-87.
[4]向云,陈坚平,刘治国,等.带电更换特高压双联V串绝缘子的方法与实践[J].电气技术,2017,18(5):136-139, 145.
[5]刘夏清,吴东,李辉,等.500kV紧凑型同塔双回输电线路带电作业人体体表电场分布特性研究[J].高压电器, 2017(7):87-94.
[6]钟万才.整体式带电更换500kV同塔双回交流线路耐张塔中上相整串绝缘子作业方法研究[J].通讯世界, 2016(15):158-160.
[7]胡毅,刘凯,彭勇,等.带电作业关键技术研究进展与趋势[J].高电压技术, 2014, 40(7):1921-1931.
[8]胡毅.输配电线路带电作业技术的研究与发展[J].高电压技术, 2006, 32(11):1-10.
[9]胡毅,刘凯,刘庭,等.带电作业技术研究与标准制定[J].高电压技术, 2012, 38(11):3015-3024.
[10]王星超,沈晓龙.带电作业工器具研制及带电作业实用化研究[J].湖北电力, 2011, 35(6):71-73.
[11]马军.±800kV特高压输电线路带电作业工器具改进[J].电力安全技术, 2018, 20(7):63-67.
[12]燕换平,曹国文,王晓丽.220kV输电线路带电作业工器具的研制与应用[J].内蒙古电力技术,2007(6):42-43.