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250KW Electromagnetic Induction Heating Coil,
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FCC Metal Heat Treatment Coil
Electromagnetic Induction Heating Coil For Metal Heat Treatment
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An induction coil consists of two coils of insulated wire wound around a common iron core (M).One coil, called the primary winding (P), is made from relatively few (tens or hundreds) turns of coarse wire.The other coil, the secondary winding, (S) typically consists of up to a million turns of fine wire (up to 40 gauge).
An electric current is passed through the primary, creating a magnetic field.] Because of the common core, most of the primary's magnetic field couples with the secondary winding. The primary behaves as an inductor, storing energy in the associated magnetic field. When the primary current is suddenly interrupted, the magnetic field rapidly collapses. This causes a high voltage pulse to be developed across the secondary terminals through electromagnetic induction. Because of the large number of turns in the secondary coil, the secondary voltage pulse is typically many thousands of volts. This voltage is often sufficient to cause an electric spark, to jump across an air gap (G) separating the secondary's output terminals. For this reason, induction coils were called spark coils.
What is induction coil (inductor)?
An Induction coil,also called a inductor,choke or reactor,is a passive two terminal electrical component that stores energy in a magetic field when electric current flows throw it.And inductor typically consists of an insulated wire wound into a coil around a core.
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