Air Core Reactors
Capacitor (Damping) Reactors

Capacitor (Damping) Reactors are designed to be installed in series with a shunt-connected capacitor bank to limit inrush currents in the capacitor bank due to switching operations, to limit outrush currents due to close-in faults and to control the resonant frequency of the system due to the addition of the capacitor banks. 

Reactors can be installed on system voltages through 765 kV / 2100 kV BIL. When specifying capacitor reactors, the requested continuous current rating should account for harmonic current content, tolerance on capacitors and allowable system overvoltage.