{"title":"Development of ± 550 kV DC GIS Basin Insulator","authors":"Shaohua Cao, Chengwei Jing, Siqiong Zhang, Zuodong Liang, Zehao Zhang, Fangwei Liang, Yong Yang, Geng Chen, Jinliang He, Chuanyang Li","doi":"10.1049/hve2.70164","DOIUrl":null,"url":null,"abstract":"<p>The basin insulator is a core component of the insulation system for ± 550 kV gas-insulated switchgear (GIS). This paper, using a finite element method for multi-physics simulations of electric–thermal coupling, determines a geometry suitable for the industrial production of ± 550 kV GIS basin insulators. Results show that, as the temperature increases, the source of charge accumulation on the convex surface of the insulator shifts from conduction current on the gas side to conduction current within the insulator. Surface potential under temperature gradients presents an absolute surface potential value below 5 kV. Mechanical performance tests, as well as electrical tests—including polarity reversal, DC superimposed impulse tests and a three-month long-term DC duration test at 1.5 times the rated voltage—were conducted. The developed ± 550 kV GIS basin insulator passed all the tests.</p>","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"11 4","pages":"1068-1077"},"PeriodicalIF":5.7000,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.70164","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Voltage","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/hve2.70164","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/3/30 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
The basin insulator is a core component of the insulation system for ± 550 kV gas-insulated switchgear (GIS). This paper, using a finite element method for multi-physics simulations of electric–thermal coupling, determines a geometry suitable for the industrial production of ± 550 kV GIS basin insulators. Results show that, as the temperature increases, the source of charge accumulation on the convex surface of the insulator shifts from conduction current on the gas side to conduction current within the insulator. Surface potential under temperature gradients presents an absolute surface potential value below 5 kV. Mechanical performance tests, as well as electrical tests—including polarity reversal, DC superimposed impulse tests and a three-month long-term DC duration test at 1.5 times the rated voltage—were conducted. The developed ± 550 kV GIS basin insulator passed all the tests.
High VoltageEnergy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍：
High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include:
Electrical Insulation
● Outdoor, indoor, solid, liquid and gas insulation
● Transient voltages and overvoltage protection
● Nano-dielectrics and new insulation materials
● Condition monitoring and maintenance
Discharge and plasmas, pulsed power
● Electrical discharge, plasma generation and applications
● Interactions of plasma with surfaces
● Pulsed power science and technology
High-field effects
● Computation, measurements of Intensive Electromagnetic Field
● Electromagnetic compatibility
● Biomedical effects
● Environmental effects and protection
High Voltage Engineering
● Design problems, testing and measuring techniques
● Equipment development and asset management
● Smart Grid, live line working
● AC/DC power electronics
● UHV power transmission
Special Issues. Call for papers:
Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf
Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf
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