Abstract

A derivation is presented for the steady-state characteristics of the electric arc in an axial flow of SF6 at constant pressure. Measurements on AC arcs which were expected to be in a quasi-steady state in such a flow of SF6 gave indifferent agreement with the theory. The measured voltages showed a form of instability and were generally higher than predicted, particularly at lower currents. The discrepancies are thought to be due to the effects of electron attachment.

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