(a.k.a. load reactor, line chokes, link reactor, choke)
The basics: line reactors are used to protect motors and reduce power line distortion (also referred to as dirty power) from variable frequency drives. Line reactors can be used in a number of applications to extend the life of your VFD and motor. 3% impedance reactors are generally used for the line side of a drive while 5% impedance reactors are typical on the load side of the drive.