Study of insulation recovery characteristics of a dielectric liquid using time series measurements of electric field distribution.

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We have investigated the measurement of electric field vector distributions in liquid dielectrics using an original method. In this study, we improved the measurement system and the algorism for the reconstruction of the electric field distribution. Then, we measured the electric field in the liquid containing space charges, and we examined the change in the electric field caused by the charges in the liquid. Moreover, we also studied the space charge distribution in the liquid.