Comparison of Vacuum Arc Behaviors Between Axial-Magnetic-Field Contacts

Abstract

We compared vacuum arc behaviors of three slot-type axial-magnetic-field (AMF) contacts at two fixed contact gaps using high-speed digital photography and arc-voltage measurements. Solid angle is subtended by anode at the center of cathode or the ratio of the anode diameter to the gap length (D/g). With coupled influence of the AMF, we observed that with… (More)

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