## 1 Transformer substation
Substations are inconspicuous heroes of our energy system. They are the very points where the miracle of transforming the voltage of electric current occurs, making it suitable for use in houses, at enterprises and in cities. Let's look inside one such substation, get acquainted with her heart and talk about her important role.
### The heart of the substation: Transformers
The main characters of any transformer substation are, of course, transformers. Imagine huge metal barrels inside which magic occurs. They accept high -voltage current, which comes from power plants along power lines, and lower it to the voltage necessary for end consumers. It is like a giant volume control, only for electricity. Without these powerful converters, there would be no light in our outlets. Transformers work around the clock, ensuring uninterrupted power supply.
### Protection and Security: Not only Transformers
But the substation is not only transformers. This is a complex system that includes many protective devices that prevent accidents and ensure security for both staff and others. Aircraft switches quickly disconnect the damaged sections of the network, preventing the spread of damage and disconnecting large territories. The relay protection system continuously controls the condition of the equipment, immediately responding to any deviations from the norm. All this works harmoniously and imperceptibly, supporting the stability of energy supply.
### inconspicuous work, a huge role
The work of the substation is invisible to most people. We turn on the light, turn on the computer, and do not think about how difficult the electric current has made before getting to our socket. But each substation is a key element of our energy infrastructure. Without them, our life would be completely different, devoid of convenience and comfort, which we perceive today for granted. Therefore, it is necessary to appreciate the inconspicuous work of these important energy nodes.