The behaviour of space charge produced by the first corona in a long rod-plane gap under a negative switching impulse voltage was analysed based on the measurements of electric field using Pockels' effect. After examining the reproducibility of the discharge phenomena, the radial and axial electric-field intensities in the gap were measured. The electric-field distribution was obtained based on the measurement at 39 positions in the gap during a series of voltage applications. The space-charge field was analysed assuming an axial symmetry of the phenomena, and the spatial expansion of the charge was discussed.
Published in:
Physical Science, Measurement and Instrumentation, Management and Education - Reviews, IEE Proceedings A
(Volume:133
,
Issue:
8
)
Date of Publication: November 1986