Consider a three-phase \(\Delta-Y\) connected, \(30-\mathrm{MVA}, 33: 11 \mathrm{kV}\) transformer with differential relay protection. If the CT ratios are 500:5 A on the primary side and 2000:5 A on the secondary side, compute the relay current setting for faults drawing up to \(200 \%\) of rated transformer current.