Title :
Insulating characteristics of SF/sub 6/-N/sub 2/ mixtures for recurring peak voltage
Author :
Pfeiffer, W. ; Stolz, D. ; Wolf, J.
Author_Institution :
Tech. Hochschule Darmstadt, West Germany
Abstract :
The voltage-time characteristics of SF/sub 6/-N/sub 2/ mixtures with different mixture ratios as well as pure SF/sub 6/ were investigated for different electrode arrangements. Two successive impulses were applied with 400-ns pulse width each and 400-ns time interval. The influence of the prestress caused by the first impulse on the voltage-time characteristic was studied. Optical investigations of the discharge development were performed with a gated image intensifier system with an exposure time of 1 ns and a spatial resolution of 10 lp/mm.<>
Keywords :
electric strength; gaseous insulation; nitrogen; spark gaps; sulphur compounds; transients; 1 ns; 400 ns; SF/sub 6/-N/sub 2/ mixtures; electrode arrangements; exposure time; gated image intensifier system; mixture ratios; optical investigation; prestress effects; pulse width; pure SF/sub 6/; recurring peak voltage; spatial resolution; time interval; voltage-time characteristics; Cathodes; Electrodes; Electrons; Impulse testing; Insulation; Integrated circuit testing; Needles; Pulse generation; Surface impedance; Voltage;
Conference_Titel :
Electrical Insulation, 1988., Conference Record of the 1988 IEEE International Symposium on
Conference_Location :
Cambridge, MA, USA
DOI :
10.1109/ELINSL.1988.13874
