If there are acetylene in the transformer oil, vacuum degassing method is generally derived from acetylene. As simply using transformer to circulate, there will be some acetylene to adsorb in the body or blind spot of transformer box, the best method is transformer ----- oil storage cabinet unilateral acetylene degassing treatment.

The transformer rated value is the provisions of the manufacturer's normal use of transformers, and transformer operates in the predetermined rated value, ensuring long-term reliable work and has good performance.

Transformer winding deformation refers to effect of mechanical or electromotive force on the internal coil windings, which causes irreversible changes in the size and position of the windings, including body displacement, winding distortion, bulging and short circuits between turns, etc.