电瓷避雷器Issue(3)：148-156,9.DOI:10.16188/j.isa.1003-8337.2024.03.019
220 kV支柱瓷绝缘子元件间连接螺栓松动对振动检测影响的仿真与实验
Simulation and Experiment of the Influence of Loose Connecting Bolts Between Two Elements of 220 kV Post Porcelain Insulator on Vibration Detection
摘要
Abstract
According to the problems of loose connecting bolts between the two elements of post porcelain insulators in 220 kV substation,the influence on the vibration detection with the ZSW-110/10 series connection model is studied in depth.Firstly,the finite element numerical analysis model of the two-el-ement post porcelain insulator is established,and the transient analysis is carried out by pulse signal stimulation.When the insulator is normal,lower element fault,and upper element fault,the acceleration and power spectrum of the pickup point of the insulator are obtained respectively before and after bolt loosening between the two-element post porcelain insulators.Then,a 220 kV post porcelain insulator test bench is built to complete the fault simulation and experiment.The theoretical analysis and measured results are analyzed,for the normal and lower element fault insulator,the loosening of the connecting bolts will lead to the increase of vibration response spectrum harmonics,but will not affect the vibration detection results of the insulator body.However,for the upper element fault insulator,the amplitude of vibration response in the low and middle-frequency bands is larger,which is close to the amplitude of the high-frequency band,which will affect the vibration detection results of the main body of the post porcelain insulator to a certain extent.关键词
支柱瓷绝缘子/振动检测/连接螺栓松动/故障诊断Key words
post porcelain insulators/vibration detection/loose connecting bolts/fault diagnosis引用本文复制引用
张燕珂,张松洋,万书亭..220 kV支柱瓷绝缘子元件间连接螺栓松动对振动检测影响的仿真与实验[J].电瓷避雷器,2024,(3):148-156,9.基金项目
国家自然科学基金(编号:52275109) （编号:52275109）
河北省自然科学基金(编号:E2022502007) （编号:E2022502007）
保定市科技计划基础研究专项基金(编号:2172P010).Project supported by National Natural Science Foundation of China(NSFC)(No.52275109) （编号:2172P010）
Natural Science Foundation of Hebei Province(No.E2022502007) （No.E2022502007）
Science and Technology Plan Basic Research Foundation of Baoding(No.2172P010). （No.2172P010）
