In previous post I discussed about the Working Principle of Transformer Now we are going to discuss the construction of the Transformer.
Construction Of Transformer :
The simple elements of a transformer consist of two coils having mutual inductance and a laminated steel core. The two coils are insulated from each other and the steel core. Other necessary parts are : some suitable container for assembled core and windings ; a suitable medium for insulating the core and its windings from its container ; suitable bushings (either of porcelain, oil-filled or capacitor-type) for insulating and bringing out the terminals of windings from the tank.
In all types of transformers, the core is constructed of transformer sheet steel laminations assembled to provide a continuous magnetic path with a minimum of air-gap included. The steel used is of high silicon content, sometimes heat treated to produce a high permeability and a low hysteresis loss at the usual operating flux densities. The eddy current loss is minimised by laminating the core, the laminations being insulated from each other by a light coat of core-plate varnish or by an oxide layer on the surface. The thickness of laminations varies from 0.35 mm for a frequency of 50 Hz to 0.5 mm for a frequency of 25 Hz. The core laminations (in the form of strips) are joined as shown in Fig. It is seen that the joints in the alternate layers are staggered in order to avoid the presence of narrow gaps right through the cross-section of the core. Such staggered joints are said to be ‘imbricated’
Constructionally, the transformers are of two general types, distinguished from each other merely by the manner in which the primary and secondary coils are placed around the laminated core. The two types are known as
(i) core-type
and
(ii) shell type.
The security is ordinarily made of extraordinary polymer film materials instead of complete, as the name may prescribe. Appealing transition is made when current courses through the circle. Aluminum Enameled Wire and Copper Enameled Winding Wire are used generally in the improvement of motors, electromagnets, transformers, and inductors.Inductor Winding
ReplyDeleteRegularly, the circle winders can composed in light of most remote point and its speed levels. The circle winding machine speed levels has changed the purpose of control and execution. This kind of winding machine has material for transformer, inductors, engine and stifles. By then it might arranged by a circle multifaceted nature, robotization mediations, age levels and some other monetary contemplations.Inductor Winding
ReplyDelete