DC Vacuum Arc Extinction in a Transverse Axisymmetric Magnetic Field

A statistical study of dc vacuum arc extinction in a vacuum interrupter (VI) with transverse axisymmetric magnetic field has been carried out at various external circuit parameters. The relationship between the maximum current that a VI can switch off and the magnetic field, the circuit inductance,...

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Bibliographic Details
Published in:IEEE transactions on plasma science 2009-08, Vol.37 (8), p.1433-1437
Main Authors: Alferov, D.F., Belkin, G.S., Yevsin, D.V.
Format: Article
Language:English
Subjects:
Axisymmetric
Axisymmetric magnetic field
Capacitance
Circuits
Direct current
Electric currents
Electromagnetism
Extinction
Failure
Inductance
Interrupters
Magnetic circuits
Magnetic fields
Magnetic switching
permanent magnet
Probability
simulation
Switches
Switching circuits
transverse magnetic field
vacuum arc extinction
Vacuum arcs
vacuum gap
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Summary:A statistical study of dc vacuum arc extinction in a vacuum interrupter (VI) with transverse axisymmetric magnetic field has been carried out at various external circuit parameters. The relationship between the maximum current that a VI can switch off and the magnetic field, the circuit inductance, and the VI shunt capacitance has been found. A statistical study has allowed us to define this maximum switched-off current with specified probability of failure. The possible causes of a VI failure are discussed.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2009.2025173