I have another question. Let us assume we have some dielectric oil and two electrodes (submerged into dielectric oil) connected to positive and negative of a voltage source. The system shall have some breakdown voltage , how can I calculate that? Any link available to get the formula? Second question is more critical if I change the electrode material ie I use more conductive material as the electrodes how the breakdown voltage shall be affected? How is the breakdown voltage related to electrode resistivity? Kindly help. Thanks a ton in advance.