$($b$)$ A radial distribution system with source at one side of the feeders, each with maximum load based on MVA rating is shown in Figure Q$\mathrm{.}1($b$).$ The CT ratio for each relay is as indicated in the figure. Determine the nominal current at each relay; and propose a suitable Plug Setting $($PS$)$ and Relay Setting Current $($RSI$)$ for all relays, considering the nearest possible value. $($PS: $40\%$ to $200\%$ in step of $20\%)$

$(5$ marks$)$

Figure Q$\mathrm{.}1($b$)$