Title :
Predischarge optical, light and electrical phenomena under pulse breakdown of various oil gaps
Author_Institution :
All-Russian Electrotech. Inst., Moscow
Abstract :
The development of optical and electrical predischarge phenomena in oil gaps with a barrier has been investigated. The barrier effect is observed only under discharge inception in the first oil duct, responsible for the discharge channel-barrier contact. A higher barrier breakdown voltage (than that of oil) is the main cause of the inception of the barrier effect. Inception of a leader channel with specific characteristics is the condition for breakdown of the gap having a barrier. Disappearance of the barrier effect under sharp nonuniform field-quasi-nonuniform field transfer is connected with changes in the state of matter in the discharge channel
Keywords :
insulating oils; barrier breakdown voltage; barrier effect; discharge channel-barrier contact; discharge inception; electrical phenomena; electrical predischarge phenomena; leader channel; oil gaps; optical phenomena; pulse breakdown; sharp nonuniform field-quasi-nonuniform field transfer; Air gaps; Cameras; Electric breakdown; Electrodes; Electrons; Infrared detectors; Oil insulation; Optical pulses; Petroleum; Transducers;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids,1993., ICDL '93., IEEE 11th International Conference on
Conference_Location :
Baden-Dattwil
Print_ISBN :
0-7803-0791-7
DOI :
10.1109/ICDL.1993.593959
