... experience 3)high quality and best price SG three phase dry type isolation transformer 1) ISO9001-2008,CE,CCC2) years of ... 769G,Phase3Ph, 60Hz,temp rise 115 SG series three-phase dry type isolation transformer factory in the light of the international similar ... the number and location (typically ± 5%), winding capacity allocation, single-phase windings with the secondary, the use of rectifier circuit ...