Today's Question 1

Question No 1:


A Station operating at 33KV is divided into two sections A & B interconnected through a reactor X. Section A has Three Generators each 15 MVA having 15 % reactance. Section B is fed  from a grid through a 75 MVA transformer with reactance 8 %. The Circuit Breaker have a rupturing capacity of 750 MVA. Find the reactance of the reactor X to prevent the breaker Being overloaded if a 3- phase Fault occurs on outgoing feeder connected to A?





Answer:

1.259Ω



Solution Will Be Provided On Request