A transformer is an electrical device that is widely used in electrical power transmission and distribution systems. There are different uses of transformer. In other words, a transformer is used in many applications. In this article, we will throw light on the applications of a transformer in detail.
Different uses of transformer
1. Change the level of voltage and current
This is the main use of a transformer. It changes the voltage and current levels according to the need. It steps up or steps down voltage or current without changing the frequency of electrical power.
2. Isolation of two circuits
As we know that the primary and secondary windings of a transformer are electrically isolated. This is how it can separate two circuits without connecting electrically (or physically).
3. Used for measurement purposes
Instrument transformers are specially designed for measuring the high voltages and currents in high voltage systems without using a large rating of measuring instruments such as ammeters, and voltmeters. A normal ammeter or voltmeter is enough to measure such high voltage or current with the help of these instrument transformers.
4. Used for maximum power transfer
It is an interesting use of a transformer. It is used as an impedance matching device for transferring maximum power to other low-power electronic and control circuits.
5. Used as a coupling device
The transformer is used as a coupling device in a transformer-coupled amplifier. This amplifier is generally used for power amplification and impedance matching purposes.
6. Bulk power transfer
A transformer is used for transforming electrical power from one voltage level to another for transmission and distribution systems. Since electrical energy can’t be stored after generation. Hence electrical power is transformed to a higher voltage level for the reduction in losses and further distributed for utilization.
7. Used in a voltage regulator
A tap changing transformer is used for voltage regulation. It boosts up voltage if there is a decrease in the system’s voltage level. It reduces voltage if there is an increase in the system’s voltage level.
8. Neutral generation
A three-phase supply does not have neutral. Hence a transformer provides a neutral for connecting single-phase load to the transformer secondary.