In a power network, 380 kV is recorded at a 400 kV bus. A 60 MVAR, 400 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor?
- A. 57 MVAR
- B. 54.15 MVAR
- C. 66.48 MVAR
- D. 63.16 MVAR
Answer: B. 54.15 MVAR
Explanation: Reactive power absorbed by a linear shunt reactor varies with the square of applied voltage: Q = Qrated × (V/Vrated)² = 60 × (380/400)² = 60 × 0.9025 = 54.15 MVAR.