Main parts of transformer

A transformer is an electric device that transfers auxiliary power from one circuit to another. It changes frequency and power. Only changes voltage and current.

The voltage is increased by the step-up transformer and the voltage is reduced by the step-down transformer.

Step-up transformers are used where high voltage is required. Step-down transformers are used where low voltage is required.

Main parts of the transformer

1. Transformer core

2. Primary winding of a transformer

3.Secondary winding

4. Transformer tank

5. Transformer bushing

6. conservator tank in transformer

7. Transformer breather

8. Transformer silica gel breather

9. Transformer radiator

10. Buchholz relay

11. Explosion proof valve

12. Transformer oil etc.

1. Transformer core

The core of the transformer is usually made of iron and silicon steel. The primary and secondary windings are placed on this core. The primary winding is through the core and the magnetic flux is transferred to the secondary winding.

When the voltage of the primary winding is applied, the primary winding generates magnetic flux. This magnetic flux is alternating, the alternating flux generates EMF. Which generates the primary winding current. This generated primary current flows in the secondary.

The main function of the core in the transformer is to help move the magnetic flux. This core is made up of many thin sheets. The thickness of a thin sheet is usually 0.5 mm. These sheets are very well laminated with each other.

This is done by making many thin sheets so that the eddy current loss is less. If the core is made of a single piece without a thin sheet, the windings of the transformer will get very hot, which will cause the transformer to become hot as well.

This is why thin sheets are made to reduce eddy current loss, and silicone steel is used to reduce hysteresis loss.


2. Transformer winding

Transformer windings are usually made of copper wire. It is placed on the core. Each winding has two parts, primary winding, and secondary winding.

The primary winding and the secondary winding are very well insulated separately. In no way should one come in contact with the other.

3. The primary winding of a transformer

The winding through which alternating power is applied from outside to the transformer is called primary winding.

The primary winding is never connected to the load, the primary winding is always connected to the supply end of the transformer.

4. Secondary winding

The winding through which power is supplied to the load is called secondary winding.

The secondary winding of the transformer is always connected to the load.

The EMF generated by the actual power applied to the primary winding causes the voltage to be absorbed in the secondary. It depends on the ratio of the primary winding to the secondary winding.

These windings are installed according to the type of transformer. The welding is done properly depending on the step up and step down transformer.

5. Transformer tank

Transformer tanks are usually made of thick metal. This is very compelling, as it protects the transformer core and the transformer winding.

In this tank, the transformer core and the transformer winding placed on the core are placed. Which is accompanied by transformer oil, which acts as an insulator and keeps the transformer cool.


6. transformer bushing

Introducing the Bushing Transformer Tank. Which is connected to the transformer winding, power is supplied to the transformer winding by means of a bushing and is supplied to the load by means of a power bushing from the transformer winding.

Separates the bushing power from the transformer body which is used as an insulator. The bushing size is determined depending on the supply power.


7. conservator tank in transformer

The conservator tank is placed on top of the main tank of the transformer. The main tank of the conservator tank and the transformer are connected by pipes.

Half of the conservator tank is filled with oil. The conservator tank is never filled with oil. The main tank of the transformer is always filled with oil.

The transformer windings get hit due to running of the transformer. This heat causes the transformer oil to heat up, increasing the volume of the transformer oil. As the volume increases, excess oil goes to the conservator.

When the transformer oil cools again, the oil returns from the conservator to the transformer's main tank.

conservator-tank in-transformer

8. Transformer breather

Breathers are used to breathe the transformer. During the oil flow in the conservator tank and the transformer's main tank, air needs to be taken out of the transformer and entered into the transformer.

Breathers are used to perform this function of the transformer. If the breather is not used, high pressure of transformer oil can cause transformer blast.


9. Transformer silica gel breather

The function of silica gel is to absorb moisture from the air. Silica gel is used to purify the air received from outside the transformer during breathing.

Silica gel is attached to the breather. Silica gels are light gray in color and should be changed to light brown after a while. Otherwise, its efficiency is lost.

10. transformer Radiator

The radiator is mounted on either side of the transformer. Which is commonly used to cool transformer oil.

When the transformer oil heats up, it enters the radiator, which is at the top of the radiator. The oil comes in contact with the air through the radiator and cools.

When the oil cools it moves to the bottom of the radiator and the cold oil enters the transformer tank.

Radiator Extra does not supply any air, it is a good way to keep the transformer cool in a natural way.


11. Buchholz relay

The Buchholz relay is basically a safety device. The Buchholz relay is placed in the connection pipe between the conservator tank and the main tank.

If there is a minor problem in the transformer, it gives the signal to solve the problem through alarm And if there is a major problem in the transformer, it turns off the transformer by tapping the circuit breaker.

A piece of glass is used in the Buchholz relay. By which the flow of oil can be seen. Many times due to the problem of the transformer the glass piece breaks and ensures the safety of the transformer.


12. Explosion proof valve

Explosion valves are used as an alternative if the air does not come out through the breather and the Khabulaj relay cannot provide safety.

This is a safety device. Protects the transformer from an explosion. This valve works if the important safety valves of the transformer do not work.


13. Transformer oil

The oil commonly used in transformers is called mineral oil However, it is of different types.

At present, four types of transformer oil are commonly used.

1. Paraffinic Oil ( High Current ): Paraffinic Oil is used in the transformer type for high current.

2. Naphthenic Oil ( Low Current ): Nephthenic Oil is used in transformers that are made for low current.

3. Bli Based Transformer Oil 

4. Silicon-Based Transformer Oil

The main function of transformer oil is to create insulation and to keep the transformer cool. Transform oil is very important.

Tech Review

FAQ in Main parts of transformer

Q1. How are the coils of the transformer connected?

Ans: The coils are magnetically connected by a single iron core.

Q2. What is the primary winding of a transformer?

Ans: The power supply to the coil of the transformer is called the primary winding.

Q3. What is the secondary winding of the transformer?

Ans: The coil of the transformer which is connected to the load is called the secondary winding.

Q4. What depends on the voltage and current of the coil of the transformer?

Ans: Depending on the number and size of wire patches.

If you have any doudts.Please let me know

Post a Comment (0)
Previous Post Next Post