Why Do We Use Isolation Transformers?

Isolation transformers are used in a wide range of applications. In this guide, we are going to look at Some of the reasons behind their popularity.

What is an isolation transformer?

An isolation transformer is a type of transformer that allows the transfer of electrical power from one circuit to another while isolating them from each other. It isolates a device from the power source during the transfer of power.

This is achieved by placing a gap between the primary and secondary windings of the transformer. The gap prevents electrical current from flowing in the secondary circuit.

How do isolation transformers work?

The operation of an isolation transformer is based on Faraday’s law of induction, which states that when a conductor cuts through a magnetic field, it will induce an emf (electromotive force) in the conductor. The magnitude of this emf depends on the speed with which the conductor cuts through the magnetic field and also on how many turns there are in said conductor. Also, if more than one conductor cuts through a magnetic field at different speeds, they will all develop emfs.

A transformer is made up of two coils wound around a common iron core. The primary coil has many turns and is connected to the power source or load. The secondary coil has fewer turns and is connected to the load or power source. When current flows through the primary coil, a magnetic field is produced. The secondary coil cuts through this magnetic field, which induces an emf in the secondary coil.

The amount of power that can be transferred from one circuit to another depends on the voltage across the secondary winding and the impedance of the load. Since both circuits are isolated from each other, it does not matter how much voltage is across either circuit.

Advantages of using isolation transformers

Isolation transformers are very useful in applications where an electrical device has to be isolated from a power source for safety reasons or for testing purposes. Isolation transformers can also be used to protect electrical devices from voltage surges and spikes found in some electrical circuits.

Isolation transformers are also used in electronic test equipment to protect the input signal of an instrument from the electrical noise present on the power line. The isolation transformer also prevents power line interference with the instrument’s internal circuitry, preventing false readings.

Isolation transformers are used on circuit breakers and fuses to prevent accidental damage to the electrical system when a fault occurs. They are also used in electronic test equipment to protect the input signal from electrical noise present on the power line.

Types of using isolation transformers:

There are different types of isolation transformers that are used in electrical applications. They include:

Mains isolation transformer

This is the most widely used type of isolation transformer. It is made up of a primary winding and a secondary winding, which are connected in series.

Mains isolation transformers are used in engineering and maintenance applications. They are used to protect the electrical system from voltage surges and spikes found in some electrical circuits.

Three Phase Isolation Transformer: (3PIT)

This type of transformer is used to provide non-isolation between three phases on a 3-phase power system. It consists of a primary winding and a secondary winding, which are connected in parallel with each other.

It is also known as “3PIT” or “3PIT”. It is widely used in the aerospace industry to provide protection of the electrical system from voltage surges and spikes found in some electrical circuits.

What is the difference between an isolation transformer and a normal transformer?

Isolation transformer is designed in a way that the primary and secondary coils are separated on the DC circuits. On the other hand, a normal transformer is designed in a way that the primary and secondary coils are connected to the same DC circuits.

The two transformers are also used in different applications. Isolation transformers are mainly used in applications that require separation of power supply from the load. On the other hand, normal transformers are mainly used in applications that require connection of the primary side to the load.

In addition, isolation transformers are also used in applications where the primary and secondary coils are connected together. On the other hand, normal transformers are also used in applications where the primary and secondary coils are separated from each other.

The following video shows the difference between isolation transformer and normal transformer:

Application areas of isolation transformers

Now that you know what isolation transformers are and how they work, let’s now look at some of the areas in which they are used.

Hospitals

Why do hospitals use isolation transformers? The reason for this is that medical equipment can be potentially dangerous when exposed to high voltage. This is why hospitals use medical grade  isolation transformers.

High Voltage Power Supply

High voltage power supplies are used by industries and power plants. This is because high voltage can cause danger in the workplace. Therefore, high voltage power supplies are usually isolated from the other equipment using an isolation transformer.

Oil & Gas Industry

The oil and gas industry uses isolation transformers as well to isolate the incoming supply from the outgoing supply of oil or gas that is being transferred through pipelines or onshore facilities.

Pipeline Industry

The pipeline industry uses isolation transformers as well to protect their pipelines from electrical hazards such as lightning strikes, fire, and other electrical hazards.

Lightning Protection

The lightning protection industry uses isolation transformers to protect their equipment from direct electrical contact with lightning. This is because lightning can cause damage to sensitive electrical equipment and cause injury to workers working on the equipment. Therefore, lightning protection companies use isolation transformers in order to protect their equipment from damage caused by lightning strikes.

Power Supply Industry

The power supply industry uses isolation transformers as well in order to provide power that is designed for a particular voltage level. This is done so that the power supply will not be damaged by fluctuations of voltage levels in the incoming supply or outgoing supply of electricity.

Conclusion

I hope that you now have full information on why we use isolation transformers. I also hope that you now have a better understanding of how isolation transformers work and how they are important to the industries that use them.

In case you would like to buy isolation transformers in China, let us help you. At ICRFQ, we source and supply quality isolation transformers in China. Please feel free to contact us if you are interested in buying isolation transformers in China.

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