Difference between revisions of "National Grid"

Latest revision as of 06:39, 15 December 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

@@ Line 1: / Line 1: @@
 ==Key Stage 4==
 ===Meaning===
-The '''national grid''' is a network of [[Power Station|power stations]], [[Transmission Line|transmission lines]] and [[Electrical Transformer|transformers]] which generate and transmit [[electricity]] across the [[United Kingdom]].
+The '''national grid''' is a network of [[Power Station|power stations]], transmission lines and [[Electrical Transformer|transformers]] which generate and transmit [[electricity]] across the United Kingdom.
 ===About The National Grid===
 : The National Grid consists of several stages:
 #[[Power Station]]s - [[Electricity]] is generated with a [[Potential Difference|potential difference]] of around 25kV.
-#[[Electrical Transformer#Step Up|Step Up Transformer]] - The [[Potential Difference|potential difference]] of the [[electricity]] is increased to around 400kV for long distance transmission. This is because the higher [[Potential Difference|potential difference]] means a lower [[Electrical Current|current]] so less [[energy]] will be dissipated through heating the [[Transmission Line|transmission lines]].
+#[[Electrical Transformer#Step Up|Step Up Transformer]] - The [[Potential Difference|potential difference]] of the [[electricity]] is increased to around 400kV for long distance transmission. This is because the higher [[Potential Difference|potential difference]] means a lower [[Electrical Current|current]] so less [[energy]] will be dissipated through heating the transmission lines.
-#Long Distance [[Transmission Line]]s - [[Electricity]] is transmitted at very high [[Potential Difference|potential difference]] (400kV) so it is kept on very high [[Transmission Line|transmission lines]].
+#Long Distance Transmission Lines - [[Electricity]] is transmitted at very high [[Potential Difference|potential difference]] (400kV) so it is kept on very high transmission lines.
-#[[Electrical Transformer#Step Down|Step Down Transformer]] - The [[Potential Difference|potential difference]] of the [[electricity]] is lowered to be sent to [[factory|factories]] and neighbourhoods at 33kV.
+#[[Electrical Transformer#Step Down|Step Down Transformer]] - The [[Potential Difference|potential difference]] of the [[electricity]] is lowered to be sent to factories and neighbourhoods at 33kV.
-#Short Distance [[Transmission Line]]s - [[Electricity]] is transmitted at 33kV over a short distance.
+#Short Distance Transmission Lines - [[Electricity]] is transmitted at 33kV over a short distance.
 #Neighbourhood [[Electrical Transformer#Step Down|Step Down Transformer]] - The [[Potential Difference|potential difference]] is lowered to 230V for use in houses.
@@ Line 18: / Line 18: @@
 | style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the '''national grid'''.
 |}
+===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 '']
+====Edexcel====
+:[https://www.amazon.co.uk/gp/product/1782945733/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945733&linkCode=as2&tag=nrjc-21&linkId=2a2dbec9db6bf5766c0458d908fa0a52 ''National grid, page 91, GCSE Physics; The Revision Guide, CGP, Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''National grid, pages 156, 176-177, GCSE Physics, Pearson Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''National grid, pages 290, 291, GCSE Physics, CGP, Edexcel '']
+:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''National grid, pages 396, 410, GCSE Combined Science, Pearson Edexcel '']
+====OCR====
+:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''National grid, page 214, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
+:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''National grid, page 95, Gateway GCSE Physics; The Revision Guide, CGP, OCR  '']
+:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''National grid, pages 230-231, Gateway GCSE Physics, Oxford, OCR '']