$($b$)$ A $\backslash (2300\backslash$mathrm$\{$~V$\},1000\backslash$mathrm$\{$KVA$\},60\backslash$mathrm$\{$~Hz$\},\backslash$mathrm$\{$Y$\}\backslash )-$connected, $2-$pole synchronous generator has the open circuit characteristics as given in the following table.

This generator has synchronous reactance of $1\mathrm{.}10$ ohm and an armature resistance of $0\mathrm{.}15$ ohm. Under full load condition the friction and windage losses are $24$ KW and the core losses are $18$ KW $.$ Ignore the field circuit losses and the stray losses of the generator. If the generator is connected to the load and the load draws full load current at $0\mathrm{.}8$ pf lagging, how much field current will be required to keep terminal voltage equal to $2300$ V $.$ How much power is the generator now supplying? How much power is supplied to the generator by the prime mover? If the generator's load is suddenly disconnected from the line, what will be the terminal voltage?