Title :
Voltage dependence of prebreakdown phenomena in insulating oil
Author :
Badent, R. ; Kist, K. ; Schwab, A.J.
Author_Institution :
Inst. of Electr. Energy Syst. & High-Voltage Technol., Karlsruhe Univ., Germany
Abstract :
Prebreakdown phenomena in insulating oil were optically recorded in strongly non-uniform fields. The observed structural variations and different velocities demand a distinction in positive and negative predischarges. The positive predischarge appears in three consecutive stages: primary, secondary and tertiary streamer, each mode having its characteristic pattern and propagation velocity. The negative predischarge possesses only one propagation stage
Keywords :
electric breakdown; insulating oils; characteristic pattern; insulating oil; negative predischarges; positive predischarges; prebreakdown phenomena; propagation stage; propagation velocity; streamer; strongly nonuniform fields; voltage dependence; Dielectrics and electrical insulation; Geometry; High speed optical techniques; Lightning; Oil insulation; Optical propagation; Optical recording; Petroleum; Resistors; Voltage;
Conference_Titel :
Electrical Insulation, 1994., Conference Record of the 1994 IEEE International Symposium on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-1942-7
DOI :
10.1109/ELINSL.1994.401481
