Short version: How can I convert transformer resistance values from Watts to Ohms?
Long version: In PSS/E, transformer resistance can be entered as either per unit values (system base or transformer base), or as a MW-value (I believe this represents loss at full load).
How can I convert the values from I/O code 3 to I/O code 1? That is from pu based on winding kV and system MVA-rating to full load loss and per unit impedance (for reactance).
Voltage level: 125/11 kV System MVA rating: 100 MVA Transformer rating: 35 MVA