Reactors are designed for installation in series with a shunt connected capacitor bank to limit inrush currents due to switching, These reactors are low inductance value.

These reactors are utilized basically to limit the short circuit current to the desired acceptance value, ie to prevent the fault currents from rising value dangerous for the equipment.

Important feature to produce capacitive reactive power at basic frequency and to filter out harmonics. Providing these reactors the harmonic current will flow into the filter and not into the network.