Difference between revisions of "National Grid"
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| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the '''national grid'''. | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the '''national grid'''. | ||
|} | |} | ||
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| + | ===References=== | ||
| + | ====AQA==== | ||
| + | |||
| + | :[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe10092 ''National grid, page 191, GCSE Combined Science; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''National grid, pages 308-9, GCSE Combined Science Trilogy 1, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac322 ''National grid, pages 34, 98, GCSE Physics; The Revision Guide, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''National Grid, pages 54-5, 238-9, GCSE Physics, Hodder, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''National Grid, pages 68-9, 243, GCSE Physics; Student Book, Collins, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782946403/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782946403&linkCode=as2&tag=nrjc-21&linkId=32a0abb60dff015b15b50e9b1d7b4644 ''National grid, pages 92, 93, GCSE Combined Science Trilogy; Physics, CGP, AQA ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''National grid, pages 95, 96, 310, 312, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA ''] | ||
Revision as of 16:27, 9 November 2019
Key Stage 4
Meaning
The national grid is a network of power stations, transmission lines and transformers which generate and transmit electricity across the United Kingdom.
About The National Grid
- The National Grid consists of several stages:
- Power Stations - Electricity is generated with a potential difference of around 25kV.
- Step Up Transformer - The potential difference of the electricity is increased to around 400kV for long distance transmission. This is because the higher potential difference means a lower current so less energy will be dissipated through heating the transmission lines.
- Long Distance Transmission Lines - Electricity is transmitted at very high potential difference (400kV) so it is kept on very high transmission lines.
- Step Down Transformer - The potential difference of the electricity is lowered to be sent to factories and neighbourhoods at 33kV.
- Short Distance Transmission Lines - Electricity is transmitted at 33kV over a short distance.
- Neighbourhood Step Down Transformer - The potential difference is lowered to 230V for use in houses.
 |
| A diagram of the national grid. |
References
AQA
- National grid, page 191, GCSE Combined Science; The Revision Guide, CGP, AQA
- National grid, pages 308-9, GCSE Combined Science Trilogy 1, Hodder, AQA
- National grid, pages 34, 98, GCSE Physics; The Revision Guide, CGP, AQA
- National Grid, pages 54-5, 238-9, GCSE Physics, Hodder, AQA
- National Grid, pages 68-9, 243, GCSE Physics; Student Book, Collins, AQA
- National grid, pages 92, 93, GCSE Combined Science Trilogy; Physics, CGP, AQA
- National grid, pages 95, 96, 310, 312, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA