Influence of switching properties of the disconnector on very fast transient overvoltage

• Published in: 2017 IEEE Electrical Insulation Conference (EIC) pp. 412 - 416
• Main Authors: Huamao Zhan, Shaofeng Duan, Linzhi Yao, Lin Zhao
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.06.2017
• Subjects: Breakdown voltage; Disconnector; Electric breakdown; gas insulated switchgear; Gas insulation; Load modeling; Switches; Transient analysis; trapped charge; very fast transient overvoltage; Voltage measurement

During switching operations of disconnectors in gas insulated switchgear (GIS), very fast transient overvoltage (VFTO) is generated due to multiple strikes across the switching contact. Switching properties, such as switching speed and trapped charge, have some impacts on VFTO behavior. In this pape...