Electrical and pyrometric measurements of the decay of the anode temperature after interruption of high-current vacuum arcs and comparison with computations

Journal Article · Sun Oct 01 00:00:00 EDT 1989 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/27.41173· OSTI ID:6660148

Dullni, E ^[1]; Gellert, B; Shade, E ^[2]

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1. CALOR EMAG, Ratingen (DE)
2. ASEA Corporate Research, CH-5405, Baden-Dattwil (CH)

This paper reports the investigation of vacuum arcs of up to 20-kA peak current. The surface temperature of the anode area melted during the anode spot mode was determined by pyrometry and the evaluation of thermionic currents. The measurements confirm the computations of heating and cooling of the anode, taking into account heat conduction, melting/solidification, and evaporation.

• OSTI ID: 6660148
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (USA), Vol. 17:5; ISSN 0093-3813
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
07 ISOTOPES AND RADIATION SOURCES
ANODES
TEMPERATURE DISTRIBUTION
THERMIONIC EMISSION
EVALUATION
EVAPORATION
PYROMETERS
THERMAL CONDUCTIVITY
VACUUM FURNACES
ELECTRODES
EMISSION
FURNACES
MEASURING INSTRUMENTS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
300400* - Thermionic Converters
070100 - Physical Isotope Separation