1980•Power Eng.; (United States)Requires access

Electrical breakdown strength of sulfur hexafluoride at high pressures and large interelectrode spacing

V.I. Popkov, A. G. Lyapin, A.D. Samadashvili

Abstract

Data are reported for a broad range of interelectrode spacings (from 0.5 to 6.0 cm) and broad range of pressures (from 0.05 to 0.8 MPa) in a homogeneous field, both with respect to breakdown voltages for sulfur hexafluoride and flashover voltages of epoxy compound support insulators. The data obtained are compared with analogous characteristics found when nitrogen and air are used. 10 refs.

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Key concepts: Sulfur hexafluoride, Arc flash, Electrical breakdown, Nitrogen, Materials science, Range (aeronautics), Sulfur, Voltage