National Grid Flashcards
1
Q
Where does most of the electricity come from in the uk?
A
Power stations
2
Q
Why do power stations need spare capacity?
A
To support high demand of electricity
3
Q
What do step up transformers do?
A
Increase voltage (to around 400000V)
4
Q
What do step down transformers do?
A
Decreases the voltage so it is safe to use
