Relative advantages and disadvantages of series and shunt compensation
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Shunt capacitive compensation. 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
Series compensation is basically a powerful tool to improve the performance of EHV lines. It consists of capacitors connected in series with the line at suitable locations.
Advantages of Series Compensation
. Increase in transmission capacity
The power transfer capacity of a line is given by
p-EV.sin∞
where, E is sending end voltage
V is receiving end voltage
X is reactance of line
δ is phase angle between E and V
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