Interaction between vacuum arcs and transverse magnetic fields with application to current limitation
The interaction between diffuse vacuum arcs and magnetic fields applied transverse to the electrode axis has been investigated both theoretically and experimentally. For arc currents < 6 kA, Hall electric fields, generated by the interaction, bow the plasma out of contact with the anode and raise the arc voltage. In the presence of a parallel capacitor, the arc current falls to zero and the arc is extinguished. For arc currents of 6 to 15 kA, arc extinction can be achieved with an oscillatory magnetic field; during such extinctions the arc voltage remains in phase with the magnitude of the field. Arc extinction via magnetic field/vacuum arc interaction could have applications to ac-current limiters and dc breakers. The fault current limiter application is discussed in this paper.
- Research Organization:
- Westinghouse R and D Center, Pittsburgh, PA
- OSTI ID:
- 6626765
- Journal Information:
- IEEE Trans. Plasma Sci.; (United States), Vol. PS-8:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CURRENT LIMITERS
DESIGN
POWER TRANSMISSION LINES
ELECTRIC ARCS
ELECTRICAL FAULTS
ELECTRODES
MAGNETIC FIELDS
PLASMA
POWER SYSTEMS
CURRENTS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)