When a oil immersed transformer is subjected to internal faults, than due to short circuit flowing through transformer windings, the temperature of windings rises, this give rise to rise in oil temperature. So Transformer oil and winding paper insulation starts decomposing and various gases like Methane, Ethane, Ethylene, Acetylene, Hydrozen etc. are produced due to … Continue reading Dissolved gas analysis (DGA) of Transformer Oil