An inductor has synonyms such as choke and reactor. It is a passive two-terminal electrical component that stores energy in its magnetic field and is employed in electrical circuits for its property of inductance.

The unit of inductance is the Henry (symbol H) named after American Joseph Henry (1797-1878), a trained physicist and mathematician. He actually discovered electro-magnetic induction before Faraday, but the latter was the first to publish and to receive the credit. Henry announced his discovery of self-inductance in 1832.

Inductors are used extensively in analog circuits and signal processing. Inductors in conjunction with capacitors and other components form tuned circuits which can emphasize or filter out specific signal frequencies. Inductors are also employed in electrical transmission systems, where they are used to depress voltages from lightning strikes and to limit switching currents and fault current. In this field, they are more commonly referred to as reactors.

GCW manufactures reactors up to 1MVAR in dry type and up to 5MVAR in oil cooled design in voltages up to 33 KV class.



5MVAR Reactor  


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