My auto transformer data sheet received from manufacturer has some parameter which i dunt understand.
ATR data sheet
Short circuit impedance referred to the first winidng
At principal tap
High voltage -to low voltage 29.75 ohms per phase
Low voltage -to Tertiary 23.65 ohms per phase
High voltage -to Tertiary 99.6 ohms per phase
what does this mean?and whre can i use this parameter??