Ferranti effect on long overhead lines is experienced when it is
- A. Lightly loaded
- B. On full load at unity p. f.
- C. On full load at 0.8 p. f. lag
- D. overloaded condition
Answer: A. Lightly loaded
Explanation: Ferranti effect occurs on long unloaded or lightly loaded high-voltage transmission lines, where the capacitive charging current flowing through line inductance causes receiving-end voltage to exceed sending-end voltage.