nd leakage reactance/phase of the priman corresponding values for the secondary v vely if the primary winding is connected

Three single phase transformers are connected in a Delta-Wye configuration.  Each transformer is rated 13kV/64kV.  The transformers are connected to a 3 phase 13kV (L-L) supply and the balanced three phase load is 788KVA. What is the current magnitude in the secondary winding of each transformer? explain the steps too please

You have a large single phase transformer with 7 tap settings (@ 0,+2,+4,+6% and -2,-4, and -6%) that lets you adjust the load voltage if necessary. The primary voltage is 4800V and the secondary voltage desired is 240V. Draw this arrangement with the 0% tap setting selected.

QUESTION 11 A single phase 600v/120v transformer has a load of 30 ohms resistive and 20 ohms inductive in series. What is the secondary load impedance with the phase angle? O a. 36.1<33.7 degrees O b. 39.5<38 degrees O c. 30.8<28 degrees O d. 46.2<53 degrees