特高压无功补偿装置管母支撑绝缘子断裂原因分析
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摘要
针对一起特高压无功补偿装置管母支撑绝缘子断裂事故,介绍了事故发生概况,并对断裂的绝缘子进行了相关检查及试验分析,指出此次事故的主要原因是绝缘子烧结工艺不当,水泥胶装不严实,安装端存在较大应力,诱发多处裂纹造成绝缘子断裂。为防止再次发生绝缘子断裂,提出合理的解决对策。
Aiming at a case of post insulator accident of UHV reactive power compensation device tubular busbar, this paper introduced the general situation of the accident and analyzed the relevant examination and experiment of the cracked insulator. It was pointed out that the primary cause of the accident was the improper insulator sintering process, the cement gel was not firmly installed and there existed the bigger stress at the installed terminal, which induced multiple site cracks to give rise to insulator breaking. For the prevention of insulators breaking once more, this paper proposed the reasonable countermeasures.
Aiming at a case of post insulator accident of UHV reactive power compensation device tubular busbar, this paper introduced the general situation of the accident and analyzed the relevant examination and experiment of the cracked insulator. It was pointed out that the primary cause of the accident was the improper insulator sintering process, the cement gel was not firmly installed and there existed the bigger stress at the installed terminal, which induced multiple site cracks to give rise to insulator breaking. For the prevention of insulators breaking once more, this paper proposed the reasonable countermeasures.
引文
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[10]郭瑞,郭奇军,韩燕飞,赵承楠.126 kVGIS盘式绝缘子金属法兰开孔的电场仿真分析[J].电网与清洁能源,2015,31(5):27-31.
[11]叶自强.220 kV闸刀支柱绝缘子断裂原因分析[J].浙江电力,2009,28(1):42-44.
[12]杨海涛,陈庆涛,丁国成,田宇,吴兴旺,赵常威.高压支柱瓷绝缘子力学特性分析及断裂机理研究[J].电瓷避雷器,2017(4):178-183.
[13]王黎明,李昂,成立.复合绝缘子微波无损检测方法的关键因素研究[J].高电压技术,2017,43(1):203-209.
[14]孙文健,刘轩东,邓桃,周军,张乔根,杨皓,王子力.复合绝缘子芯棒典型缺陷检测方法研究现状[J].陕西电力,2016,44(10):52-56.
[2]吴旭涛,危鹏.一起220 kV隔离开关支柱瓷绝缘子断裂事故的原因分析[J].电瓷避雷器,2011(6):11-14.
[3]王少华,李特,周象贤,张杰,江宝,吴尊东.变电站瓷支柱绝缘子断裂故障分析及预防措施[J].电瓷避雷器,2016(5):35-38.
[4]李欣,何智强,单周平,刘兴文,段建家.220 kV管母用瓷支柱绝缘子运行事故分析[J].高压电器,2015,51(5):199-204.
[6]王逊峰,林韬,张义莲,魏毅,殷展.基于输电线路设备问题的分析与研究[J].电网与清洁能源,2017,33(11):11-14.
[7]孔小红,温生,刘桂林,陈祥睿,武永泉,赵轩,杨红杰.220 kV输电线路支柱绝缘子断裂故障研究分析[J].电力与能源,2018,39(1):6-9.
[8]韦晓星,孙勇,陈如龙,吕刚,李东,瞿少君.水平安装支柱瓷绝缘子断裂故障及弯曲负荷分析[J].电瓷避雷器,2017(2):156-163.
[9]曹雯,麻焕成,林晓焕,申巍,王洋.110 kV复合绝缘子电场分布影响因素[J].电网与清洁能源,2015,31(7):8-12.
[10]郭瑞,郭奇军,韩燕飞,赵承楠.126 kVGIS盘式绝缘子金属法兰开孔的电场仿真分析[J].电网与清洁能源,2015,31(5):27-31.
[11]叶自强.220 kV闸刀支柱绝缘子断裂原因分析[J].浙江电力,2009,28(1):42-44.
[12]杨海涛,陈庆涛,丁国成,田宇,吴兴旺,赵常威.高压支柱瓷绝缘子力学特性分析及断裂机理研究[J].电瓷避雷器,2017(4):178-183.
[13]王黎明,李昂,成立.复合绝缘子微波无损检测方法的关键因素研究[J].高电压技术,2017,43(1):203-209.
[14]孙文健,刘轩东,邓桃,周军,张乔根,杨皓,王子力.复合绝缘子芯棒典型缺陷检测方法研究现状[J].陕西电力,2016,44(10):52-56.