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A series of triggering experiments were carried out to investigate into the characteristics of vacuum arc controlled by TMF-AMF contacts. During the whole experiments, current ranged from 5kA to 20kA (rms) and both arc appearance and the behavior of cathode spots were captured by high-speed camera with corresponding arc current and arc voltage. A 3D steady MHD model was built to simulate and analyze...
The paper demonstrates the results of experimental study of AMF CuCr electrodes interrupting capability in the presence and absence of an external transverse magnetic field. It is shown that the transverse magnetic field can significantly decrease the interrupting capability in case the long (7–9ms) arcs: under the experimental conditions the reduction of about 20% was observed. The decrease of interrupting...
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