Title :
Characteristics of fuse opening switches in granular quenching media
Author :
Kim, Cheon Ho ; Kuk, Jeong Hyun ; Yim, Dong Woo ; Ahn, Jae Woon
Author_Institution :
Agency for Defense Dev., Taejon, South Korea
Abstract :
Characteristics of fuse opening switches using powder or granular type quenching media, alumina, silica, and polytera-fluoroethene (PTFE), were compared with those using air. Fuses were made of a piece of copper foil of 18 /spl mu/m thick, and their width and length were varied from 10 to 30 mm, and from 120 to 500 mm, respectively. To explode the fuse, a current of 60 to 80 kA was supplied from a capacitor bank. The length of the fuse was reduced approximately by a half when any type of quenching media was used, when compared with the length showing a useful dwell time with an air medium. The capability of suppressing the current restrike was improved too. Test results showed that silica is the best quenching medium for high power generation out of materials used in this study.
Keywords :
electric fuses; exploding wires; granular materials; power capacitors; pulsed power supplies; pulsed power switches; 10 to 30 mm; 120 to 500 mm; 18 mum; 60 to 80 kA; PTFE; alumina; capacitor bank; copper foil; fuse opening switches characteristics; granular quenching media; high power generation; polytera-fluoroethene; silica; Capacitance; Capacitors; Circuits; Conducting materials; Copper; Fuses; Power generation; Silicon compounds; Switches; Voltage;
Conference_Titel :
Power Modulator Symposium, 2000. Conference Record of the 2000 Twenty-Fourth International
Conference_Location :
Norfolk, VA, USA
Print_ISBN :
0-7803-5826-0
DOI :
10.1109/MODSYM.2000.896159
