Transformers

Hi,friends here is some information about Transformers,

 Transformer is a static electrical device or stationary piece of apparatus, which transfers electrical power from one circuit to another, which are magnetically coupled together with or without change of voltage and without any change in power and frequency by the principle of mutual induction. As Transformer is a static device (there are no moving parts), hence there are no mechanical losses. Hence the efficiency is as high from 95%-98%. Maintenance of Transformer is easy since it has no slots, teeth and air gaps. In a Transformer electrical energy is generated, transmitted and distributed and used in the form of a.c. energy.

Basically transformer consists of two windings, such as primary winding and secondary windings. These windings are electrically separated but magnetically linked through a path of low reluctance.

The primary winding (coil) carries the source of alternating flux in the laminated core, most of this flux is linked to the secondary winding and produces a mutually induced e.m.f in it. If the secondary winding circuit is closed, a current flows in it, thus electric power is transferred from the primary to secondary coil.

Thus a transformer is a device that,

1.      Transfers electric power from one circuit to another without change in frequency.

2.      Works on the principal of electromagnetic induction.

3.      In which the two circuits are mutually connected each other.

First high efficiency transformer

Advantages of Transformers:-

• There is no tear and wear, so no friction loss because it is a static device.
• Maintenance cost.
• Transformers can be manufactured for very high voltages; therefore it is easy to insulate high voltage carrying stationary winding.
• The high voltage energy transmission is economical, that can be accomplished with the help of transformer.
• The efficiency of the transformer is very high.
• The high voltages can be transmitted with high precision by stepping down during transmission and stepping up during the reception with the help of the transformer.