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Electricity in power stations is generated at 25 000 volts why is it transmitted across the National Grid system at 132 000 volts?
Wiki User
∙ 14y ago
Voltage is stepped up to higher voltages for transmission in a power transmission system in order to reduce the current required to deliver a certain power and, as a result, to reduce the size of the conductors required.
Remember that power is current times voltage, so increasing the voltage allows a reduction in current for the same amount of power. Also, remember that the size of the conductor is proportional to the amount of current alone.
At the receiving substation, the transmission level voltage is stepped down to a distribution level voltage, typically in the range of 11 to 13KV. It is then stepped down to service level voltages at the local distribution transformer serving a business or a group of residences.
Wiki User
∙ 14y ago
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How is hydroelectric energy be used in homes and businesses?
Whether the electricity is generated by conventional power stations, or hydroelectric power generation, the electricity used in homes and businesses will still be the same, and used the same.
Why were power stations built?
To produce electricity
Most of the electricity used in the world is generated by?
The majority of electricity is generated from fossil fuels, coal, oil and gas. Fossil fuels need to be replaced by other sources as the resources we rely on are becoming more scarce. Increasingly, renewable energy sources are being used such as wind, solar, hydro-electric, tidal but these represent a small percentage of the total generation. Nuclear power has had its share of problems but in the twenty first century, it is making a comeback. Better controlled and safer than early nuclear power stations, new stations are being constructed.
Why would it be advisable for a householder to remain connected to the national grid?
So that, as a user of electricity, he or she does not have to rely on only one local power generating station. A National Grid is a network of electricity supply lines carrying power from various generating stations There is usually more than one supply line to most points (or grid nodes), from more than one generating station. So, by using a National Grid, users can continue to receive power from the other power stations in the network whenever a power station or a distribution sub-station has to be taken out of service for maintenance work or when some power lines are destroyed by bad weather.
Are satellite TV stations going to be broadcast in digital?
Satellite broadcasters such as direct tv and dish network have all ways transmitted digital from day one.
When is electricity made?
Electrical energy is mostly generated at the same time as it is used, in other words, all the time 24/7/365. Electricity for powering our homes is generated in power stations.
How the UK make electricity?
The majority of he UK's electricity is generated by coal or gas-fired power stations. We also use nuclear power, wind and wave generators.
What is the job of a dynamo in the national grid?
The national grid is a means of distributing electricity, there is no need for a dynamo (which produces electricity) in the national grid. However, dynamos (generators) are needed in the power stations.
Why are hydroelectric power stations not very useful in a drought?
Because in a drought there is not enough water to drive the turbines. So no electricity is generated.
How is hydroelectric energy be used in homes and businesses?
Whether the electricity is generated by conventional power stations, or hydroelectric power generation, the electricity used in homes and businesses will still be the same, and used the same.
What electricity is used in India?
India uses Nuclear Powerplants as major sources of it Electricity. It also has a few coal stations and some water turbines at a few dams. But 80% of electricity generated in India is actually nuclear energy.
How is nuclear energy available in your community?
Through the national grid system for distributing electricity from power stations
Is the world's largest supply of electricity generated by powerstations?
Yes, mostly by fossil fueled power stations running on coal, oil, natural gas and nuclear.
How do natural gas stations produce electricity?
"How do natural gas stations produce electricity?
How do nuclear power stations operate?
Basically, all power stations adopt the same method to produce electricity. A turbine is caused torotate. A generator is attached to the shaft of the turbine. As the turbine turns, electricity is produced inthe generator. This electricity is sent out through transmission lines to a distribution station of theElectricity Board.In hydroelectric power stations, the turbine is turned by flowing water. In thermal power stations,steam is produced by heating water in a furnace which burns coal or oil. In nuclear power stations, thesteam is produced by the heat generated in the fission process.
What are some things that use natural electricity?
all the kitchen supplies like microwave and fridges and televisions and of course light. By 'natural electricity' I presume you mean electricity not deliberately generated by man-made generating stations etc. There are lightning flashes and some fish that stun by internally-made electricity.
How does national grid make electricity?
The North American national grid does not make the electricity. The grid is a distribution system that transports power throughout the system to homes that are connected to it. The power for the grid is produced elsewhere at generating stations that feed into the grid.
