某型特高压变压器套管顶部螺母咬死问题分析  

Verification and Analysis of Galling Nutthreadon Top of UHV Transformer Bushing

作　　者：朱文兵 黄振宁 许伟 朱孟兆 胡新芳 ZHU Wen-bing;HUANG Zhen-ning;XU Wei;ZHU Meng-zhao;HU Xin-fang(State Grid Shandong Electric Research Institute,Ji'nan 250003,China;State Grid Shandong Electric Power Company,Ji'nan 250001,China)

机构地区：[1]国网山东省电力公司电力科学研究院,山东济南250003 [2]国网山东省电力公司,山东济南250001

出　　处：《变压器》2022年第10期7-11,共5页Transformer

基　　金：国家电网有限公司科研项目(5500-202116119A)。

摘　　要：近年来,在某型特高压变压器套管拉杆现场更换过程中,发现部分套管拉杆顶部紧固螺母存在咬死现象,为分析螺母咬死原因及螺母咬死对拉杆拉力的影响,本文中作者在现场开展了相关试验,得出了相关结论并给出安装建议,可指导现场安装工作。In recent years, during the field replacement of UHVtransformer bushing pull rod, it is found that some fastening nuts on the top of bushing pull rod are galling, In order to analyze the causes of galling nut and the impact on pull rod tension, this paper carried out relevant verification tests on the site, obtained relevant conclusions and gave installation suggestions, which can guide the field installation work.

关 键 词：特高压变压器套管 拉杆 螺母 咬死 

分 类 号：TM405[电气工程—电器]