supply installation testing and commissioning of transformer 2000 kva or 2 mva 33 / 11 kv 03 phase 50 hz onan cooled copper wound energy efficient level -2 transformer having vector group of dy. -11 first fill of oil , cable box on lt- ht side on circuit tapping + 5 % to -10 % in step of 2.5 %supply installation testing and commissioning of transformer 2000 kva or 2 mva 33 / 11 kv 03 phase 50 hz onan cooled copper wound energy efficient level -2 transformer having vector group of dy. -11 first fill of oil , cable box on lt- ht side on circuit tapping + 5 % to -10 % in step of 2.5 %, supply installation testing and commissioning of transformer 2000 kva or 2 mva 33 / 11 kv 03 pha se 50 hz onan cooled copper wound energy efficient level -2 transformer having vector group of dy. -11 first fill of oil , cable box on lt- ht side on circuit tapping + 5 % to -10 % in step of 2.5 % standard and extra fitting of bu ckholz relay magnetic oil gauge oil and winding temperature indicator marshalling box and ct confirming to is-11 80 pt-1 or latest make %u2013 kel , bhel, alstom, simens, abb, kriloskar , areva or similar and confirming to is -2026 or latest as per site requirement. [ warranty period: 30 months after the date of delivery ]