We all use electric energy but not all of us try to understand how it appears in our houses. Let's visit the main distribution complex of the Samara region (the International Distribution Internetwork of the Volga) to check it out.
Some electric networks have voltage 220-1150 kV. Such high figures are necessary to minimize losses of energy while its tranfer at long distances. As a rule in the cities they use distribution networks with voltage 110 kV or lower, such networks serve the International Distribution Internetwork of the Volga either. Then they are transformed into 6 or 10 kW that go to substations located in the yards of houses where voltage is lowered up to 220 V.
Digital communications centre. The screen displays all Samara energy objects. Colors identify types of voltage. If it's white it means it's inactive being repaired or turned off.