the national grid

Question 1

what does the national grid do?

Answer 1

provides electricity from power stations to our houses.

Question 2

where does electricity go after being generated?

Answer 2

through a step up transformer

Question 3

where does it go after going through a step up transformer?

Answer 3

through a network of cables and pylons

Question 4

where does it go after going through pylons?

Answer 4

to a step down transformer and then into our houses.

Question 5

describe step up and step down transformers

Answer 5

they have a varying number of coils on each side. more coils = higher voltage. less coils = lower voltage.

Question 6

what does a step up transformer do?

Answer 6

takes electricity from low voltage to high voltage so that the electricity can move through a system with less energy loss. this makes it more efficient

Question 7

what does a step down transformer do?

Answer 7

takes electricity from high voltage to low voltage so it’s safe to be in homes.