Correct option is B
The voltage regulation due to the Ferranti effect is negative. This is because the receiving end voltage is higher than the sending end voltage.
Explanation
· The Ferranti effect is the increase in voltage at the receiving end of a long transmission line when there is no load or a light load.
· It is caused by the charging current of the line.
· The voltage regulation is negative when the power factor is leading.
· The Ferranti effect is more pronounced when the line is longer and the voltage applied is higher.
What is voltage regulation?
Voltage regulation is the change in terminal voltage from no-load to full load rated value divided by the full-load rated voltage.
What are the benefits of voltage regulation?
· Stable voltage protects sensitive electronics from harm.
· Regulated power allows devices to perform optimally.
