Coil Winding

Coil Winding is of two types:-

1) High Voltage Coils: H.V. Coils are the components of finished transformers. They are made on automatic layer setting winding machines. 

A solid cylindrical former of predetermined diameter and length is being used as hase over which is made.

Generally round insulated wire of either copper (Cu) or Aluminium (Al) is used as basic raw material.

The coils are made in number of layers.

The starting and finishing leads of each coil are terminated on either side of the coil.

These leads are properly sleeved and locked at number of points.

2) Low Voltage Coils:

L.V. Coils are also one of the components of transformer. The procedure of making low voltage coil is generally same as described earlier.

The shape of the basic raw-material (Al or Cu) is rectangular.