What is a line reactor?
A line reactor is a special form of inductor that is typically used between the line and the load to smooth current inrush, reduce harmonics and noise, and buffer the systems connected to it. Specifically it is an inductor that adds inductive impedance to a circuit. These devices are available in either single phase or three phase configuration, with three phase units being the most common, and are connected in series to the load which they are protecting. line reactors are typically specified as a percent impedance at a certain voltage and current level. For example, a 480 volt, 5%, 25 amp, line reactor is a typical specification. This specification means that a 25 amp load current the line reactor will have a 5% inductance impedance voltage drop on a 480 volt system. If the load is an inductive impedance load, the voltage to the load will be 5% lower than the voltage to the line reactor. If the load is a capacitance impedance load, the voltage to the load will be 5% greater than the
