single-phase step-down transformer is rated 15 MVA, 66 kV/11.5 kV. • • With the 11.5 kV-winding short-circuited, rated current flows when the voltage applied to the primary is 5.5 kV. The power input is read as 100 kW. The open-circuit test with the 11.5 kV-winding opened results in a power input of 65 kW and a current of 30 A. a. Determine the transformer parameters using the simplified circuit referred to the primary side. b. Applying 70kV in the primary side and connect a 15 2 load in the secondary side. Determine V2 at the load terminals of the transformer, neglecting magnetizing current.