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Kerr electro-optic measurements of space charge effects in high voltage pulsed propylene carbonate using parallel-plate electrodes

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2 Author(s)
Helgeson, A. ; Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA ; Zahn, M.

The Kerr electro-optic field mapping technique has been used to study space charge effects in high voltage pulsed propylene carbonate (C4H6O3) using stainless steel parallel-plate electrodes. Measurements presented here were taken using a circular polariscope with aligned polarizers at room temperature (T∼20°C) with average initial electric field strengths of E0∼52 kV/cm and for measurement times ranging from 10 μs to 1 ms. The light intensity pictures were analyzed along a line in the center of the electrode gap. From the light intensity distribution the electric field and space charge were calculated as a function of position and time. The calculated space charge distributions show both positive and negative charge injections from the electrodes as well as bulk charge dissociation.

Published in:

Electrical Insulation, 2002. Conference Record of the 2002 IEEE International Symposium on

Date of Conference:

7-10 Apr 2002