Reactors, like capacitors, are basic to
and an integral part of both distribution and transmission power
systems. Depending on their function, reactors are connected either in
shunt or in series with the network. Reactors are connected either
singularly (current-limiting reactors, shunt reactors) or in conjunction
with other basic components such as power capacitors
(shunt-capacitor-switching reactors, capacitor discharge reactors,
filter reactors). Reactors are utilized to provide inductive reactance
in power circuits for a wide variety of purposes, including
fault-current limiting, inrush-current limiting (for capacitors and
motors), harmonic filtering, VAR compensation, reduction of ripple
currents, blocking of power-line carrier signals, neutral grounding,
damping of switching transients, flicker reduction for arc-furnace
applications, circuit detuning, load balancing, and power
conditioning.Reactors can be installed at any industrial, distribution,
or transmission voltage level and can be rated for any current duty from
a few amperes to tens of thousands of amperes and fault-current levels
of up to hundreds of thousands of amperes.
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