For protection of a 10 MVA, 132 kV/13.6 kV delta star connected transformer, what will be turn ratio of current transformer on high voltage side in differential protection scheme to circulate a current 5 A in pilot wires?
1
574.75 : 5/1.732
2
43.73 : 5/1.732
3
43.73 : 5
4
574.75 : 5