Use of additional shunt capacitor can be made for increasing the capability of line as it

August 26, 2021

A. Reduces surge impedance
B. increase phase shift
C. Increase in Alpha
D. all of above

Ans: A. Reduces surge impedance

Explanation:

Whenever an inductive load is connected to the transmission line, power factor lags because of lagging load current.
To compensate this, a shunt capacitor is connected which draws current leading the source voltage.
The power factor can be improved.
Shunt capacitors in an EHV line is used to improve fault level and voltage profile.
This method is used to improve the power factor.
Whenever an inductive load is connected to the transmission line, power factor lags because of lagging load current.
To compensate, a shunt capacitor is connected which draws current leading the source voltage.
The net result is an improvement in the power factor.