架空输电线路用防鸟粪绝缘护套配置方法的研究  

Study on configuration method of anti-bird dropping insulating sheath for transmission lines

作　　者：黄宇辰 房俊龙[1] HUANG Yuchen;FANG Junlong(School of Electrical and Information,Northeast Agricultural University,Harbin 150006,China)

机构地区：[1]东北农业大学电气与信息学院,黑龙江哈尔滨150030

出　　处：《绝缘材料》2023年第3期115-121,共7页Insulating Materials

摘　　要：随着生态环境的变好,由鸟类引发的输电线路故障也随之增多。其中,由于鸟粪引起的架空输电线路跳闸事故已经成为威胁电网安全运行的重要因素。基于此,本文通过试验探究了绝缘护套厚度和长度分别对击穿电压和沿面闪络电压的影响,进而提出防鸟粪绝缘护套长度和厚度的配置方法,并搭建模拟鸟粪闪络的110 kV真型试验平台,验证配置方法的可行性。结果表明:当鸟粪贯穿整个空气间隙时,绝缘护套的击穿电压与其厚度呈二次函数的关系,沿面闪络电压与闪络距离呈正比关系。本文提出的配置方法可以为实际工程中绝缘护套的应用提供指导,具有一定的工程实用价值。With the improvement of ecological environment, transmission line faults caused by birds are also increasing.Among them, the tripping accident of transmission lines caused by bird has become an important factor threatening the safe operation of power grid. Based on this, we explored the influence of the thickness and length of insulating sheath on the breakdown voltage and surface flashover voltage respectively through tests. Then the configuration method of the length and thickness of insulating sheath was put forward. Finally, a real test platform simualting the the flashover of bird droppings was established to verify the feasibility of the configuration method. The results show that when the bird droppings penetrate the entire air gap, the breakdown voltage of the insulating sheath is a quadratic function of its thickness. The surface flashover voltage is proportional to the flashover distance. The configuration method proposed in this paper can provide guidance for the application of insulating sheath in practical engineering and has engineering practical value.

关 键 词：架空输电线路 鸟害故障 绝缘护套 

分 类 号：TM854[电气工程—高电压与绝缘技术]