Cable & Bobbin Wire Process Automation

A coil is a circuit element that is produced by winding a conductor wire upside down or side by side. The unit of the coil is henry (H), and the symbol is L.

 

When the bobbin AC current is applied, there is a magnetic field around the bobbin because the flow direction is constantly changing. Since this magnetic field shows an additional resistance against current, the resistance that the coil shows at AC circuits increases. In DC circuits, the resistance of the coil against current is only the ohmic resistance caused by the metal produced by the coil.

 

The spool, the mandrel or the carcass on which the coils are wound is called a spiral, the spiral, the winding or the winding if it is a tourniquet on the conductive mandrel. Usually, varnished (insulated) copper wire is used in the coil winding.

 

Inductance is the degree to which the coil is self-affecting. The inductance unit is henry. A henry is the inductance corresponding quantity of the coil if the 1-A change in AC current of 1 A across the coil forms a 1-volt equivalent electromotive force (EMK). Because Henry has a very high degree of inductance, henry's trusses are mostly used in practice.

 

1 H = 1000 milihenry = 1000000 microhenry

 

Bobin Nadir, Bobin Types The similarity between the coils and the capacitors is that both circuit elements are reactive circuit elements that do not expend electrical energy. As well as the condensers can store the electric charges, the coils store electric energy for a short period of time as a magnetic field. The important difference between these two circuit elements is; when the capacitors are connected to the circuit, the voltage is reversed (phase difference), the coil is shifting the voltage forward. The phase difference between the coil and the capacitors created by the voltage and current causes different types of benefits and losses in the applications.