The results show that the M40 film has far higher gas permeability than other films and can separate the fault gases H2, CH4, C2H6, C2H4, C2H2, CO, and CO2 from the oil in 12h.

• 结果表明，M40膜的渗透率远远超过了其他的膜，可以在12h内实现H2、CH4、C2H6、C2H4、C2H2、CO、CO2七种变压器故障特征气体的油气分离。