Dr. Dmitri Kopeliovich
Transformer oils (insulating oils) are dielectric oils used in oil-filled transformers, some high voltage capacitors and circuit breakers, fluorescent lamp ballasts.
Oil-filled transformers are more efficient, more reliable more compact, more quiet and with longer lifespan than dry transformers.
Transformer oils have the following functions:
Transformer oils (insulating oils) have replaced toxic PCB (polychlorinated biphenyl).
Mineral oils, vegetable lubricants (soybean oil, vegetable based esters) or synthetic lubricants (polydimethylsiloxane) are used as basics for transformer oils.