Title :
Investigations on quenching by transient or instability phenomena in a small DC current vacuum arc
Author :
Kuroki, Yoshimitsu ; Miyamoto, Sadaaki ; Kaneko, Eiji
Author_Institution :
Univ. of the Ryukyus, Okinawa, Japan
Abstract :
A vacuum arc voltage of rising up like a step establishes transient oscillating currents in a closed circuit with a parallel capacitor and an inductance. From previous investigation, we found that a current zero was realized by the transient oscillating current caused by the transient phenomena or the instability phenomena. This paper presents detailed investigation results of the transient phenomena or the instability phenomena of vacuum arc with AgWC, CuCr and CuW in a small DC currents interruption.
Keywords :
copper compounds; silver compounds; tungsten compounds; vacuum arcs; vacuum circuit breakers; AgWC; CuCr; CuW; closed circuit; current zero; inductance; instability phenomena; parallel capacitor; quenching; small-DC current interruption; small-DC current vacuum arc; transient oscillating current; transient phenomena; vacuum arc voltage; Capacitors; Electrodes; Equations; Materials; Transient analysis; Transient response; Vacuum arcs;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum (ISDEIV), 2012 25th International Symposium on
Conference_Location :
Tomsk
Print_ISBN :
978-1-4673-1263-9
Electronic_ISBN :
1093-2941
DOI :
10.1109/DEIV.2012.6412478
