... ,JBKDG & SGPower Transformer,Dry type transformer,Three-phase Dry-type Power Transformer,Transformer,SG,DG DG and SG ... can be applied to such power transmission and distributionplaces like underground railway,high building,airport,station,wharf,enterprise ... produced according to usersrequirements. Working condition1.Ambient temperature:-15-+402.Altitude:<1000m3.Relative humidity:<90%4.Environnment ...