DISTRIBUTION TRANSFORMERS 20/0.4 kVTECHNICAL DATA1.No of phases- 3(three)2. Frequency - 50 Hz3.Winding-LV;MV- COPPER4.Cooling liquid- Mineral oil5.Hermetically sealed6. Tank: Corrugated steel sheets7.Off load taping 2x2,5%8.Method cooling: ...