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Line Reactor Sizing
Include Line reactor diagram

Benefits of a Line Reactor
http://www.schaffner.com/mediapool/files/mediaPool46.pdf
 * 1) Minimizing Nuisance Overvoltage Trips Due To Line Transients
 * 2) Reducing Input Line Current Harmonics from VFDs
 * 3) Improving VFD Power Factor and Reducing Line Losses with Reactors
 * 4) Minimizing Line-Side Fuse Operation During Unsymmetrical Voltage Sags

Selecting impedance for the line reactor
Line reactor applications generally require an impedance of 3% or 5%. However, some of the high power applications use an impedance of 4% or 5% to increase the line current quality and reduce the attenuation.
 * 1) Determine the HP (horse power) rating or the Current rating of the drive or motor.
 * 2) Select the supply voltage (208, 240, 480, or 600 volts).
 * 3) Determine the percent impedance required for the application.
 * 4) From the table below, select the Catalogue No. of the reactor corresponding to the current /HP, voltage, and the percent impedance.
 * 5) For each Catalogue No. selected, the inductance, dimensions, and the weight are given in the following two pages.

http://www.pioneerelectric.ca/Products/LineReactors.pdf