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Electrical Engineering QUESTION #2143
Question 1
In a power system, the 'Ferranti Effect' occurs when the receiving end voltage $V_r$ is higher than the sending end voltage $V_s$. This is typically observed under which condition?
  • Full load with lagging power factor
  • No load or light load on long lines✔️
  • Short circuit at the receiving end
  • Heavy inductive loading
Correct Answer Explanation
The Ferranti effect is caused by the charging current of the line (capacitance) when it is energized but lightly loaded, leading to $V_r > V_s$.