TY - GEN
T1 - Cathode spot motion in a vacuum arc with a long roof-shaped cathode
AU - Beilis, I. I.
AU - Sagi, B.
AU - Zhitomirsky, V.
AU - Boxman, R. L.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/11/18
Y1 - 2014/11/18
N2 - Vacuum arc cathode spot motion was investigated on a 'roof-shaped' aluminum cathode. This roof geometry included flat roof-top and four sloped sides, inclined by an angle α. A high speed camera was used to observe cathode spot motion in an external axial magnetic field. The spot velocity on the slopes and the distribution of cathode spots between the roof and slopes was determined. It was obtained that under a magnetic field the spot motion on the roof was slow (<1m/s) and mainly random, while on the slopes fast retrograde motion was observed. This velocity increased linearly with the magnetic field, and decreased slightly with α. The general behaviour of the spot motion agreed with previously published data.
AB - Vacuum arc cathode spot motion was investigated on a 'roof-shaped' aluminum cathode. This roof geometry included flat roof-top and four sloped sides, inclined by an angle α. A high speed camera was used to observe cathode spot motion in an external axial magnetic field. The spot velocity on the slopes and the distribution of cathode spots between the roof and slopes was determined. It was obtained that under a magnetic field the spot motion on the roof was slow (<1m/s) and mainly random, while on the slopes fast retrograde motion was observed. This velocity increased linearly with the magnetic field, and decreased slightly with α. The general behaviour of the spot motion agreed with previously published data.
UR - http://www.scopus.com/inward/record.url?scp=84919363443&partnerID=8YFLogxK
U2 - 10.1109/DEIV.2014.6961657
DO - 10.1109/DEIV.2014.6961657
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AN - SCOPUS:84919363443
T3 - Proceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV
SP - 213
EP - 216
BT - ISDEIV 2014 - Proceedings of the 26th International Symposium on Discharges and Electrical Insulation in Vacuum
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV 2014
Y2 - 28 September 2014 through 3 October 2014
ER -