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Why the voltage used in the home is different from that used to transmit electricity over the national grid?
Wiki User
∙ 13y ago
It takes voltage to "push" the electricity over distance. So it requires much greater voltage to move it over miles of power lines than it does from room to room.
Wiki User
∙ 13y ago
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How electricity transported in high voltage but not in current?
If electricity is transmit at high current then this will requires heavy conductors,be it copper or aluminium. This will increase the cost of transmission. Also, the heating effects i.e the energy lost due to head will increase as well. Thus, it's never ideal to transmit electricity at high current.
What is the ability to transmit heat or electricity to other objects called?
The terminology for heat is thermal transfer. To transmit electricity over long distances the terminology would be transformation where transformers step the voltage to a very high value to cut down on line loss. This high voltage is then stepped down at the other end of the transmission line to be used by utility companies to sell to their customers.
Why the electric utility company increases the voltage of electricity for long distance transmission?
If we would like to transmit the voltage that comes staright from power stations without increasing it, we would have to use wires of size of the motorway to carry it. When we increase the voltage, current decreases which means we can use less diameter wire and we can transmit the power easly. P.zak bury
What are the benefits of traveling with a voltage converter?
if you are traveling out of the country a voltage converter is a neccessity. Because a lot of other countries use electricity on a different voltage.
How many volts in medium voltage electricity?
Medium voltage is hard to determine. There are different levels of voltage in different fields. Though many say medium and high voltage can be interchanged it is as shown to be anything from 300-600V .
What is the different between domestic and industrial electricity supply?
Electricity for industries are supplied with high voltage.Domestic supply is with low voltage.
Does the national grid transmit at high voltage or a high current?
Both. That way a lot of power can be transmitted. The largest UK grid circuits work at 400 kV and a line of pylons can transmit up to 6000 MVA.
Why distribution is most important part of power system?
Distribution means taking the Electrical power to different usage points where power is needed. It Could be to different equipment in an industry or to different houses in a town or different points of usage in a house and so on.
Does electricity flow through wires?
Electric current flows through wires, but to transmit electric power you need two wires with a voltage between them, connected to a power source.
Why is the national grid system better than each town having its own supply?
Because then every town has the same voltage: before, if there was a sudden demand for electricity in one town- nearby towns couldn't help for they had different voltages. So, the town couldn't cope with the electricity demand but now it can because of the National Grid.
What is the ability to transmit heat or electric to other objects?
The terminology for heat is thermal transfer. To transmit electricity over long distances the terminology would be transformation where Transformers step the voltage to a very high value to cut down on line loss. This high voltage is then stepped down at the other end of the transmission line to be used by utility companies to sell to their customers.
What is the voltage of the Nigerian power grid?
In order to transmit electricity efficiently, high voltages are used. This high-voltage electricity is then converted to low-voltage electricity at electricity substations (transformers). I'm not sure whether you want to know the transmission voltage or the voltage that comes out of wall sockets.Transmission voltageThe national grid in the UK runs on mainly 400kV AC system with an HVDC system, that runs on 400kV too, across the English Channel.Other voltages in use are 275 kV and 132kV although these are not really classified as transmission voltages.End-user voltageIf you use electricity in the UK, the nominal voltage at the wall socket is 230V. (This is the RMS voltage, which means if you are running something like a lightbulb, heater or kettle it's equivalent to 230V DC. The peak voltage is this multiplied by the square root of 2.)Additional AnswerUK transmission voltages are 400 kV and 275 kV; distribution voltages are 132 kV, 66 kV, 33 kV, and 11 kV.
