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Energy distribution - Introduction
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What happens to electricity after going through electrical safety devices?
It reaches outlets and switches in a house.
What happens to electricity after going through a meter?
It reaches electrical safety devices.
What does a meter do?
It measures the amount of electricity used in a building.
What happens when electricity reaches a house?
It goes through a meter.
What's the difference between distribution lines and transmission lines?
Distribution lines transport low voltage electricity, transmission lines carry high voltage electricity
What do distribution lines do?
They distribute electricity to houses in a city.
How and where can voltage be decreased?
In step-down substations with the use of a transformer.
What happens to electricity when it reaches a city?
Its voltage needs to be decreased.
What happens to transmission lines when they reach a city?
They usually go underground.
What do transmission lines do? What types of transmission lines exist?
Transmission lines carry electricity from the source to the users. They can be overhead or underground.
What is the main conductor of electricity on a power grid called? What material is it made of?
Transmission lines - metal or aluminium cables
How and where can the voltage of electricity be increased?
With the use of a transformer in step-up substations.
What change does electricity go through to be passed onto the power grid?
The voltage must be increased.
What do power grids do?
They operate long distance electricity transfer.
What's the name of the network infrastructure for electricity?
Power grid / electrical grid
Why is the process of energy distribution difficult?
Power plants are usually distant from cities and houses, so an infrastructure network is needed.
What happens after electricity generation?
Electricity gets distributed to the users.
Where and how is electricity generated?
It's generated in power plants using some kind of fuel.
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