supply and installation,testing and commissioning ac 3 phase 50 hz, 400 kva capacity transformer copper wounded step-down out door type 11000/433 volts (at no load) double wound oil immersed naturally cooled with external cooling tubes,core type delta connected on primary side (hv) and star connected on secondary side (lv) in accordance with vector symbol dy-11 (vector group with neutral brought on secondary side (lv side)and having tapping at +/-2.5,+/-5.0 and +/- 7.5 to be changed by means of hand operated off load tap changing gear. the maximum centigrade and the transformer shall be confirming to is-1180 2014 level-2 bis mark and comprising with the following standard fitting/accessories.
contd to srl item no 1.01
