高压电器2025，Vol.61Issue(2)：214-222,9.DOI:10.13296/j.1001-1609.hva.2025.02.025
基于模态分析的GIS盆式绝缘子带电检测技术
Live Detection Technology of GIS Insulating Spacer Based on Modal Analysis
李璐 1彭琪 1苏征 1刘琛浩 1宋颜峰 2李军浩2
作者信息
- 1. 国网河南省电力公司超高压公司,郑州 450006
- 2. 西安交通大学电气工程学院,西安 710049
- 折叠
摘要
Abstract
Surface contamination and cracks of GIS insulating spacer can reduce the flashover voltage on its surface and seriously endanger the normal operation of power grid.Therefore,the study on condition detection of insulating spacer is of great significance to ensure safe operation of power grid.Based on the modal analysis method,the live condition detection system of insulating spacer is developed in this paper,and such defects as surface contamination and cracks of insulating spacer are tested and studied.The results show that the contamination defect of insulating spacer can remain the amplitude of modal transfer function changed,and the modal characteristics of the insulating spacer are sensitive to the variation of contamination quality.The crack defect can cause the extreme point of the modal transfer function of the insulating spacer to move backward.Under the joint action of the surface contamina-tion and crack,the amplitude variation of modal transfer function in the high frequency band 2 000-4 000 Hz is more drastic and the modal characteristics difference is more obvious.The field test is performed based on the detection system,and the disassembly inspection results show that the detection system can accurately detect the condition of GIS insulating spacer.The research in this paper provides a new method for live detection of condition of insulating spacer in GIS equipment.关键词
GIS/盆式绝缘子/状态检测/模态特性/传递函数Key words
GIS/insulating spacer/condition detection/modal characteristics/transfer function引用本文复制引用
李璐,彭琪,苏征,刘琛浩,宋颜峰,李军浩..基于模态分析的GIS盆式绝缘子带电检测技术[J].高压电器,2025,61(2):214-222,9.
