Title :
Time correlation of light intensity, voltage and current waveforms in breakdown of transformer oil under steep-fronted impulse excitation
Author :
Watkins, Michael L. ; Budenstein, Paul P.
Author_Institution :
Auburn Univ., AL, USA
Abstract :
Time-correlated specimen voltage, current, and light-intensity waveforms are related to tree initiation, onset of conduction, and tree propagation. Results on breakdown voltage and time of initiation relative to waveforms are also given. It is demonstrated that the breakdown phenomena in polymethylmethacrylate, as indicated by waveforms and self-luminosity, are similar to those described for breakdown in transformer oil
Keywords :
electric breakdown of liquids; impulse testing; insulating oils; insulation testing; transformer insulation; breakdown of transformer oil; breakdown voltage; current waveforms; light-intensity waveforms; onset of conduction; polymethylmethacrylate; self-luminosity; steep-fronted impulse excitation; time correlation; tree initiation; tree propagation; voltage waveforms; Anodes; Breakdown voltage; Dielectric breakdown; Dielectric liquids; Electric breakdown; Electrodes; Geometry; Oil insulation; Solids; Testing;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1988. Annual Report., Conference on
Conference_Location :
Ottawa, Ont.
DOI :
10.1109/CEIDP.1988.26342
