Why is AC voltage transmitted?
Some people may think "Since the appliance uses DC, why not transmit DC in the first place?"
As we all know, electricity comes from hydroelectric power stations, thermal power stations, nuclear power plants, etc. These power stations are located in mountainous or coastal areas, and the AC voltage is more advantageous for transmission from these areas to the urban area.
In short, transmission loss (energy loss) can be reduced by transmitting AC voltage in a high-voltage, low-current manner.
However, in actual households, since high voltage cannot be used directly, it is necessary to transform (step-down) the voltage in stages through several substations, and finally convert it to 100V or 200V before entering the household. These conversions are also simpler because of AC, so AC voltage is transmitted.
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