... model:SG-15KVA DG and SG series Dry type transformerGeneralDG and SG series single-phase and three-phase dry ... Altitude:<1000m3.Relative humidity:<90%4.Environnment exists with out gas,steam,chemical deposition,dust or ... conditions that are not in line with the above stipulations,user shall negotiate with us,Main technical characters1. ... waveform distortion DG and SG series Dry type transformer