Title :
The effect of area on pulsed breakdown in water
Author :
Truman, K. ; Mankowski, J. ; Wetz, D. ; Kristiansen, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Tech. Univ., Lubbock, TX
Abstract :
Experimental results are presented on the degree to which electrode surface area impacts the dielectric strength of water. A water gap of 4 mm was tested under pulsed conditions with a maximum electric field in excess of 1 MV/cm and a maximum current of more than 20 kA. Stainless steel electrodes with a Bruce profile were used to generate a uniform electric field across the water gap. The profile of the electrodes enabled effective areas ranging from 0.5 cm2 to 75 cm2 while minimizing the change in capacitance of the water gap. Conclusions are made as to the effect electrode surface area has on the holdoff voltage and holdoff time of water dielectric systems
Keywords :
dielectric liquids; electric breakdown; electric strength; electrodes; pulsed power supplies; stainless steel; 4 mm; Bruce profile; Marx generator; dielectric strength; electric field; electrode surface area effect; pulsed breakdown; stainless steel electrode; water dielectric system; water gap; Dielectrics; Electric breakdown; Electrodes; Probes; Pulse generation; Pulse power systems; Steel; Testing; Voltage; Water;
Conference_Titel :
Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-8586-1
DOI :
10.1109/MODSYM.2004.1433523
