Effect of molecular structures of insulating oil on Stray Gassing

Reports from all over the world indicate that transformer oils can release large amounts of flammable gasses even at moderate operating temperatures. This phenomenon is termed `stray gassing'. However, there have been few studies on the relationship between the molecular structures of the oil and stray gassing. In this report some molecular structures were selected because they represent each carbon-type composition. They were subjected to stray gassing tests. It was found that the structures of each compound have different gas patterns under the stray gassing test conditions.