A transformer is a device that is extensively used in the electrical power supply system. where the transmission of current requires stepping up or stepping down the voltage to suit respective circumstances. Accordingly, transformers manufacturers India make them be either step-down transformers or step-up transformers.
How does a transformer work?
A transformer works on a principle that is commonly known as Faraday’s Law. According to this law, a varying magnetic field can induce an electric voltage in a conductor and thereby, induce an electric current to flow through it. In a transformer, the primary and secondary conductors are wrapped around a soft iron core with neither of the two conducting wires touching each other. When a varying current is passed through the primary conductor or wire, a varying magnetic field is produced in the soft iron core which in turn produces an electric current in the second conductor or wire.
The number of coils in each conductor is a deciding factor in the voltage and current the coil can carry. In a step-up conductor, the primary coil has fewer turns than the secondary coil and the voltage of the current induced in the secondary coil is greater than that of the primary coil. The vice-versa is true of a step-down conductor.
What are the applications of a transformer?
The most common application of a transformer is in power distribution. In this case, the transformers are integrated into the supply system at various centers like the power generators, substations, and so on. The transformer at the generator is always a step-up transformer that increases the voltage of the electric power in order to minimize the loss of energy as heat, as it is transmitted over long distances. When the electric power is distributed to residential or office buildings, it is stepped-down to a smaller voltage that common electrical appliances are compatible with. Similarly, when power is distributed to an industry, it is either stepped-up or stepped-down as necessary.
Transformers manufacturers in India also produce them to be used in electrical appliances like phone chargers to further step down the voltage for the use of certain appliances that need lower voltages than what is supplied to households and offices (220 volts in India).
Signal transformers form a part of amplifiers when they are used in combination with certain devices like microphones. Here, the sound energy that is converted into electrical energy is stepped-up and amplified so that it is audible more loudly and clearly for a larger distance.
Audio transformers permit telephone users to carry on a two-way telephonic conversation over a single line.
A balun transformer is used to convert a signal that is referenced to the ground into a signal that has balanced voltages to the ground. This is done in scenarios like when a signal is transmitted between an external cable and internal circuits.
Transformers are also used in the medical fields in order to separate the users from direct current. These transformers are usually found in combination with hospital beds, medical lab equipment, and dental chairs.
What are the types of transformers used?
Transformers manufacturers in India produce the following kinds of transformers:
- Power transformer
- Distribution transformer
- Capacitor divider transformer
- Three-phase transformer
- Leakage transformer
- Audio transformer
- Polyphase transformer
- Pulse transformer
- Instrument transformer
- Output transformer, and so on.
Transformers are an age-old invention, first used in 1885, that are still extensively used in power supply systems throughout the world. However, with the increasing demands for more efficient and eco-friendly transformers, the design and structure of these devices are constantly evolving to support the rising requirements for clean energy forms.