Transformers (2 Units) Load tap switching transformer Standard JEC-220-2014 Phase number 3 Rated frequency 50Hz Cooling method ONAN / ONAF Rated Capacity (KVA) Primary 20000/22000 Secondary 20000/22000 Rated voltage (V) primary 66000 secondary 6600 Rated current (A) primary 175/192 secondary 1750/1925 Test voltage value (KV) primary L1 350 AC 140 secondary L1 60 AC22 Temperature rise limit Number of turns 65K Oil 60K 23T each in weight