Step up transformers have allowed electricity to reach many remotely located towns and villages in various countries all over the world. They have helped to keep the prices of electricity at affordable levels. Producing electricity with water or wind is not expensive; it is transporting it into far away places that raise the cost. It is cost negative to bring electricity into unpopulated areas because the people living there will never be able to pay the amount spent to bring it from miles away.
Many countries have bought used step up transformers and isolation transformers from the UK so they can bring electricity to remote areas of their most unpopulated lands. Step up transformers raise the voltage of the electricity they produce and lower the amperage on it so it is less resistant to heat and to travel. This makes it cheap to transport the electricity in high voltages which is later lowered to usable currents when it arrives at its destination. Many Latin American and African nations have had to buy used step up and isolation transformers to be able to take electricity at reasonable prices to isolated areas.
To be able to transport electricity into remote areas, these modest countries have found used equipment for sale in countries like the United States, the UK and Germany. The used equipment then gets taken back to their manufacturers where they have get fixed and have their oil changed along with other vital parts necessary for proper operation and use. The countries selling the used equipment typically contribute to the refurbishing process by assisting with the repair and transport costs of the transformers and electricity towers. This is typically done for nations that cannot afford the equipment without assistance. They sell the used equipment not to make a profit but as a charitable aid to less fortunate countries, without actually handing them everything.
Three phase transformers are also used in the process to lower the price of transporting electricity. These transformers produce electricity that flows at different speeds through the same wire but with different voltages and amperes. It is cheaper than normal 220 or 120 volt current as well because it is raw, it is not processed or steadied at a specific voltage. The electricity produced by these transformers is used to run electric motors, large and small. It is also used to run heavy machinery both in farms and in factories. Transformers and not raw electricity move the world, without them we would not have different voltages and different amperage and applications.
Step up transformers are the first step in the process of taking electricity to the masses which would not have it in any other way without it first being converted into what it is now. This is only one of their uses, there are many more in which transformers move machinery and equipment all over the world. It is not oil that moves the world we live in, it is electricity. Most of the electricity used around the world is generated with water, wind or the sun's energy.
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