Title :
Investigation of breakdown in vacuum with positive and negative lightning impulse voltages in weakly nonuniform fields
Author :
Arora, Ravindra ; Goffar Khan, M.A.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India
Abstract :
Experimental investigations of breakdown in vacuum up to 7.6×10-6 Torr in weakly nonuniform fields with lightning impulse voltage of either polarity are reported in this paper. From the oscillograms taken for each impulse voltage application, measured results of statistical time lag, propagation of leader and breakdown characteristics with respect to Schwaiger factor are analysed
Keywords :
impulse testing; insulation testing; lightning; vacuum breakdown; vacuum insulation; 7.6E-5 torr; Schwaiger factor; breakdown characteristics; leader propagation; negative lightning impulse voltages; oscillograms; positive lightning impulse voltages; statistical time lag; vacuum breakdown; weakly nonuniform fields; Breakdown voltage; Dielectrics; Electric breakdown; Lightning; Optical propagation; Oscilloscopes; Partial discharges; Vacuum breakdown; Vacuum technology; Voltage measurement;
Conference_Titel :
Electrical Insulation, 1998. Conference Record of the 1998 IEEE International Symposium on
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-4927-X
DOI :
10.1109/ELINSL.1998.704729
