Physical Processes in the Contamination Flashover of High Voltage Insulation. Part 1: Appendices A, B, C, and D

摘要

Research performed at M.I.T. on physical processes involved in contamination flashover of outdoor transmission line insulation is reported. The research was directed at obtaining a fundamental understanding of the flashover process in order to suggest improvements in the design of insulators. Contamination flashover is a form of sparkover caused by the formation of a moist conducting film on the surfaces of insulators. It occurs mostly in coastal regions and in industrial regions with air pollution. Research was conducted in three principal areas: collection of basic experimental data on the flashover process, theoretical modeling, and the application of results to prevent flashover. Results include two patent applications, one published paper, one conference paper presentation, and several additional papers submitted for publication. Two seminars were held during the study to which industry representatives were invited. An extensive appendix includes internal memoranda reporting various aspects of the project.