Electrostatic oil typically refers to oil that has been subjected to an electrostatic separation process to remove impurities and contaminants. Electrostatic separation is a method used to separate particles based on their electrical charges. In the context of oil, this process can be employed to remove water, solid particles, and other contaminants that may be present in the oil.

Here's a basic explanation of how electrostatic oil separation works:
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‍Charging the Oil: The oil is passed through a section where it is subjected to an electric field. This electric field causes the particles and contaminants in the oil to become electrically charged.

‍Separation of Charged Particles: The charged particles in the oil are then attracted to oppositely charged electrodes or plates within the separation chamber. This attraction causes the charged particles to migrate towards the electrodes, effectively separating them from the oil.

‍Collection of Contaminants: The separated contaminants are collected on the electrodes or plates, while the cleaned oil continues its flow through the system.