Shunt Capacitors and Series Capacitors - A Comparison

Shunt Capacitors  Series Capacitors 
 Shunt Capacitors are used to improve the power factor of the system.  They are used to offset the effect of the series reactance in the line.
 Shunt capacitors are not effective in situations where
the line reactance of the line is high.
 Series capacitors are useful in conditions of high series reactance.
 Shunt Capacitors are connected as a single bank
connected to the bus or individually near the loads.
 Series Capacitors are connected in series with the load