s9-M three-phase oil-immersed complete sealed dis

Use stepdown distribution,with low loss ,safe and reliable,not hanging core inspection ,adavned structure m,oil aging small size ,low noise characteristics Complete sealed transformer contains oil tank.which is completely isolated from air.The elasticity feature of the oil tank compensates the volume transformation of oil tank;the moisture and oxygen cannot enter the tank. This can slow down the aging of insulation materials.There is no need to check suspended core before bring to use and free from maintenance after putting to use.This improves operation reliability of the product. Product feature: 1.The oil inside transformer isolated from air and ensure the transformer can use continuously for 20 years without any special process.There are no oil storage tank and protection devices. 2.The transformer applies vacuum oiling to achieve sealed effect. Application:city electric network,petrifaction,metallurgy and other occasions with heavy humidity and in convenient maintenance.