[Keynote speech]Recent Progress in Investigations on Insulation Characteristics of GIS Under Very Fast Transient Overvoltage - Presentation details

Recent Progress in Investigations on Insulation Characteristics of GIS Under Very Fast Transient Overvoltage
ID:199 View Protection:PUBLIC Updated Time:2022-10-31 14:14:40 Hits:168 Keynote speech

Start Time:2022-11-03 15:30 (Asia/Shanghai)

Duration:20min

Session:[P] Plenary Session [P2] Keynote speech 2

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Abstract
Very fast transient overvoltages (VFTOs) generated during the routine operations of disconnector switch in GIS make great threat to the insulation of power equipment such as GIS. It is very important to obtain the characteristics of VFTO generated in GIS substation, and then analyze the insulation characteristics of GIS under VFTO, including SF6 gas gap breakdown characteristics and insulator flashover characteristics, so as to provide a basis for insulation coordination under VFTO. In the speech, the development process of VFTO simulation generator was introduced first. Then, the insulation characteristics of GIS under VFTO were obtained by using the VFTO simulation generator. Finally, the steep impulse test technology was proposed for GIS to improve the effectiveness of insulation defect detection.
 
Keywords
Speaker
Tao Wen
School of Electrical and Automation Engineering, Hefei University of Technology

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