Spherical model is used to study the polarization characteristics of the droplet in oil under the action of high-voltage electric field,however,there are few reports on the researches on the polarization characteristics of deformed droplet.Accordign to deformed droplet,ellipsoid droplet model is set up,the frame of axes of the ellipsoid is used to obtain electric field distribution in inner prolate-sphere droplet in electric field in order to ...