High voltage! How electricity is delivered to your home?
Updated: Jan 27
We are going to start with the big towers: the high-capacity transmission lines. They might ruin all our landscape pictures, but they are useful. They carry electricity long distances.
Then we have transformers, which can increase or decrease the voltage. Near the power plant, transformers increase the voltage for more efficient transmission over long distances. When voltage is high, it travels fast and confidently. But careful, these voltages are dangerous. That's why transmission lines are located on high towers. Makes sense right?
As it gets closer to where it will be used, electricity is routed through transformers at distribution substations, which lower the voltage for safety. Transformers are great machines, which are so underrated. But it's true that they look ugly, look below.
Some numbers: we consume voltages typically in the order of 120/240 volts for our homes and 480 volts for business and industry. Facts, for the most curious ones.
Now some analogies to get everything right. We are almost done.
To understand how the electricity flow works, we have to imagine that transmission lines are like highways, moving large volumes of electricity traffic. The lower-capacity distribution lines are like streets that crisscross the towns. When highways get congested, everything slows down. But the guys working on this are so great that we don't even notice. Awesome job electricity operators.