Applications of high voltage circuit breakers and development of aging models [Elektronische Ressource] / Phuwanart Choonhapran

Applications of High Voltage Circuit-Breakers and Development of Aging Models Vom Fachbereich 18 – Elektrotechnik und Informationstechnik – der Technischen Universität Darmstadt zur Erlangung der Würde eines Doktor-Ingenieurs (Dr.-Ing.) genehmigte Dissertation M. Sc. Phuwanart Choonhapran geboren am 19. Juni 1976 in Bangkok Referent: Prof. Dr.-Ing. Gerd Balzer Korreferent: Prof. Dr.-Ing. Armin Schnettler Tag der Einreichung: 12. Oktober 2007 Tag der mündlichen Prüfung: 7. Dezember 2007 D 17 Darmstadt 2007 Acknowledgements This thesis was carried out during my time at the “Institut für Elektrische Energieversorgung”, Darmstadt University of Technology. Firstly, I would like to thank Prof. Dr. G. Balzer for the great opportunity to let me pursue my Ph.D. here and his support during my research. I am very grateful to him for letting me attend many conferences in my area of expertise. I wish to thank Dr. Claessens, ABB, for his support and valuable information. I wish to thank Prof. Dr. A. Schnettler for reading and co-referring my thesis and other professors for agreeing to serve on my thesis committee. I would like to thank Prof. Dr. W.G. Coldewey and Pornpongsuriya’s family for the initial connection and processing in Germany. Without their help, it would not be possible to start doing my Ph.D. here. Many thanks to Dr.