Power transmission line

A brief explanation may be found in Wikipedia.

Hi,

A long transmission line draws a substantial quantity of charging current. If such a line is open

circuited or very lightly loaded at the receiving end, the voltage at receiving end may become greater

than voltage at sending end. This is known as Ferranti Effect and is due to the voltage drop across the

line inductance (due to charging current) being in phase with the sending end voltages. Therefore both

capacitance and inductance is responsible to produce this phenomenon.

The capacitance (and charging current) is negligible in short line but significant in medium line and

appreciable in long line. Therefore this phenomenon occurs in medium and long lines.

Mohd

Its a good reply from guest. Everyone can easily understand the meaning. Keep it up.

Krishna Rao