Accompanying with the transformer discharge, there is the phenomena as electric pulse, electric radiation, ultrasonic, light, and partial over heating etc. And the partial discharge in the oil emits gas and produces the energy wastage.

• 伴随着变压器放电会产生电脉冲、电辐射、超声波、光、局部过热等现象，油中放电还将分解出气体，产生能量损耗等。