Transformer Definition And Working Principle

asif khan

Transformer Definition And Working Principle

What is a transformer?

Transformers are electrical devices consisting of two or more coils of wire that are used to transfer electrical energy through a changing magnetic field.

One of the main reasons we use alternating AC voltages and currents in our homes and workplaces is that the AC supply can be easily generated at a simple voltage (hence the name of the transformer). Is. and then distributed throughout the country. National grid of long-distance pylons and cables.

According to Fraud's law of electromagnetic induction, an EMF

would be ready in the other direction. If the circuit of this secondary
semiconductor is closed, then a current will flow through it.

Transformer Definition And Working Principle

Working principle of a transformer.

The reason for changing the voltage to a very high level is that

most of the distributed voltages mean less current for the same power and
therefore the losses of I2 * R in the network grid of cables are reduced.

This high AC transmission voltage and current can then be

reduced to a very low, safe and usable voltage level where it can be used to
supply electrical equipment to our homes and workplaces, and all these basic
voltages. ۔ Possibly thanks to Transformers.

Voltage transformers can be thought of as electrical components

rather than electronic components. A transformer is basically a very simple
static (or stationary) electrical passive electrical device that works on the
principle of fraud involvement by converting electrical energy from one value to

The direction in which electricity is generated from a source is

known as the "initial samita". In the diagram below, this is the
'first coil'.

The direction that gives the desired output voltage due to

interconnection is commonly known as "secondary symmetry". This is
the second coal in the diagram.

A transformer that increases the voltage between the primary and

secondary windings is described as a step-up transformer. In contrast, a
transformer that reduces the voltage between the primary and secondary winding
is described as a step-down transformer.

Whether the transformer voltage level increases or decreases

depends on the relative number of turns between the primary and secondary side
of the transformer.

The transformer works by connecting two or more electrical

circuits using a simple double magnetic circuit that the transformer generates
itself. A transformer works on the principles of "electromagnetic
induction" in the form of mutual inclusions.

Mutual manipulation is the process by which a wire coil moves

magnetically closer to the voltage in another coil that is close to it. Then we
can say that transformers work in the "magnetic domain", and
voltage or current level.
transformers get their name from the fact that they "change" the

Transformers can increase or decrease their supply voltage and

current level without increasing its frequency, or the amount of electricity
transmitted from one direction to another through a magnetic circuit.

A single phase voltage transformer consists mainly of two

electrical coils of wire, one is called "primary winding" and the
other is called "secondary winding". In this tutorial, we will
explain the "primary" aspect of a transformer that typically consumes
electricity, and the "secondary" aspect as a power supply aspect in
general. Single phase voltage transformer has high voltage aspect.

These two coils are not in electrical contact with each other,

but instead are wrapped around a joint magnetic iron circuit called a
"core". This soft iron core is not solid but is made of individual
pieces together to help reduce core damage.

The two marine parts of the coil are electrically separated from

each other but are magnetically connected by a common core so that electricity
can be transmitted from one coil to another. When an electric current passes
voltage in the indicated secondary direction.
through the primary winding, a magnetic field is formed which accelerates the

In other words, there is no direct electrical connection between

the two seawater coils for the transformer, hence it is also called isolated
transformer. Typically, the main winding of the transformer is connected to the
input voltage supply and converts or converts the electric force into a
magnetic field. While secondary job.
P VP - Basic voltage
S VS - secondary voltage
P NP - Number of primary windows
S NS - Number of secondary winds
. Φ (phi) - This is a flux link

Note that both sides of the coil are not electrically connected

but only magnetic. A single phase transformer can increase or decrease the
voltage applied to the primary winding. When a transformer is used to
primary, it is called a step-up transformer. When it is used to "reduce"
"increase" the voltage in its secondary direction with respect to the
called a step-down transformer.
the secondary semiconductor voltage in connection with the primary, it is

However, there is a third condition in which a transformer

produces the same voltage in its secondary part as its primary direction. In
other words, its output is the same in terms of voltage, current and power
transformer" and is primarily used to isolate impedance matching or
transmission. This type of transformer is called an "impedance
adjacent electrical circuits.

The voltage difference between the primary winding and the

secondary winding is obtained in the primary winding (NP) as compared to the
number of coal winding in the secondary winding (NS).

Since the transformer is basically a linear device, there is now

a ratio between the number of turns of the base number.
Basic construction of transformer:-

The transformer consists of two attractive windows and a laminated steel cover. The coils are insulated with a steel core as well. A
transformer can consist of a container for window and cover assembly (called a
oil to the transformer tank for cooling purposes, etc.
tank), suitable shrubs for taking our terminals, oil conservator for supplying

In all types of transformers, the core is constructed by

assembling (stacking) layers of steel, with minimal air gaps between them (to
obtain a permanent magnetic path). Used steel has a high silicon content and
damage. Steel laminated sheets are used to reduce the current loss. The sheets
sometimes heat treatment to provide high permeability and low hysteresis are cut into E, I and L shapes, to avoid more hesitation in the joints, by
swapping the sides of the joints.
Types of transformers

Transformers can be classified on different grounds, such as

construction types, cooling types, etc.

(A) Based on construction, transformers can be classified into

two types. (i) Core type transformer and (ii) Shell type transformer, which are
described below.

Transformer Definition And Working Principle Transformer Definition And Working Principle Reviewed by asifnews on May 23, 2020 Rating: 5

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