Why is electricity transmitted at a high voltage?

Answer 1

To move the energy through the lines to reach the farthest user, electricity leaves the power plant at 24,000 volts to a transformer area, there it is increased to 304,000 volts which is used to move the energy through out the service area and reduced back down to be accepted in your house or place of business

Answer 2

Electricity is transmitted at high voltages to minimize power losses due to the resistance of the wire. Power = Voltage * current, and Voltage = current * resistance. The resistance of the wire does not change with voltage level, so to power losses will be less for the same amount of power as voltage is increased.

Answer

The answer provided above describes an advantage, rather than the reason, for transmitting energy at high voltages. The primary reason is that, by using high voltages, the resulting lower currents make it possible to use cables with cross-sectional areas that allow the conductors to be light enough to be suspended from towers or poles. In other words, the use of high voltages is what makes energy transmission practical. The advantage of a saving in energy loss, as described above, is simply a bonus!

Answer 3

To reduce power losses.

Power = voltage x current. Higher voltage means less current. Power loss is proportional to the square of the current.

Answer 4

because they feel like it