A power plant generation has two generators as detailed in the figure below. The capacity of circuit breakers is 150 MVA. A supply from the grid through a transformer is sought to extend the system as shown below. Find the reactance of the reactor to prevent the circuit breakers from being overloaded if a balanced fault occurs on the feeder connected to it. Assume the bus voltage is 3300 V and the base KVA is 7500 KVA.
3,000 kVA 7%
4,500 kVA 8%
7,500 kVA 7.5%
X% 000
C.B.
C.B.
C.B.
C.B.