what is inhibited and uninhibited transformer oil?

Inhibited and uninhibited transformer oil refer to two types of insulating oils used in transformers. Inhibited transformer oil contains additives that prevent oxidation and degradation, enhancing its longevity and performance. This type is preferred for modern applications where extended service life is crucial. In contrast, uninhibited transformer oil lacks these additives, making it more susceptible to oxidation and breakdown over time, which can lead to reduced efficiency and increased maintenance needs.