Explaining how the national grid works
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- čas přidán 7. 03. 2019
- In the UK there are over 4,474 miles of overhead electricity lines providing power to Britain's homes. Using a model I demonstrate how the National grid works.
National Grid Web site www.nationalgridet.com/
The Power station generates AC electricity. If this low voltage is put over the grid much of the energy is lost, but if the electricity is converted by a step-up transformer then sent across the grid and then put into a step-down transformer then little electricity is wasted.
This is based on a kit by Irwin Science Education
www.irwinscienceeducation.com...
And using Hornby Pylons to improve the look.
We purchased this product and use it in our teaching.
Philip M Russell Ltd
Web: www.hemelprivatetuition.co.uk
Thank you sir. Helps me enlighten the process.
This raw tutorial is a lot better than the graphics used to replace it.
Thank you for this demonstration and I will welcome any future videos from your channel.
Glad it helped!
Short and sweet thank you mate i learnt something today the transformer bit is just genius
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Explained better than my Physics teacher
Very interesting I love how you explained how power stations work and looking at your model pylons
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great stuff phillip
Thank you, Philip 👍🏼
Good demonstartion sir.Thank u🙏
I like those lights under your cabinets
Thanks, this was a clear and understandable explanation. 🙏🏻☺️
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Great explanation, brilliant thank you 🙏
Glad it was helpful!
This guy explains it 1000000 times better than my teacher
agreed
congratulations Philip
Thanks Philip! Great explanation
Glad it was helpful!
Great video thank you Philip.
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Very helpful! Now I know what transformers are for!
Simple and easy to grasp
Great video Phil!
Glad you enjoyed it.
Thank you sir,
It's a crystal clear explanation I simply loved it.
I'm a commerce graduate and I'm searching for explanation about national power gird system. Because, in India on 5th April to express the solidarity to doctors, police men, and all good people who are fighting Corona Virus, Every Indian household had turned of their lights for 9min and lit the candles and showed how United we are. (Indian government had requested only to turn of lights but not other electrical items. The Government cautioned everyone if they turn off everything it would worsen the Power grid) I'm being a commerce guy so curious to know how such an event impacts Power grid.
Thanks for your explanation as I understood how it impacts.
How did it work out?
A clear lecture thanks for the lecture s Sir.
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good video :)
Where do suppliers come into it if the National Grid are already distributing the electric?
Wow pylons who would have thought that .
czcams.com/video/5dKnJ5SkvgQ/video.html
While some videos show an armature turned by turbines, others display a magnet being spun. Do you know if both of these are used at power plants or whether one is used for other type machines? Thanks
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3:46 How?
If one power station fails, how does the light still stay on?
All the power stations feed into the same national grid. It is a Mesh network. So if any one station fails or needs to go offline then other stations can ramp up their electricity production and fill in the gap. The national grid is a network connecting every power station to every house. It is true that there are some junctions that if they go down large areas can fail but this is very rare and can normally be fixed in a few hours. Countries that don't have a national grid, if the power station does not produce enough power there are brownouts or if the power station fails, then there is no electricity until the power station is repaired. This doesn't happen in the UK.
@@PhilipRussell Thank You Very Much!
@@PhilipRussell What countries would this be a problem?
So it’s the grid operators that change the directions of power flow to the substation?
there is no neutral wire going form substation 1 to 2? then how the negative ac cycle will flow form home substation to power house substation? can you please explain?
Only two wires are needed for AC electricity one to the object and one to return. The electricity alternates in which wire is the positive and which is the negative, which means that the names positive and negative are redundant. The third cable is the Earth which allows a path for the electricity to the ground rather than through you.
So in my model, only two wires are needed one to take the electricity to the substation and one to return it. Which is positive and which is negative varies some 50 times per second in the UK.
It's the frequency thing I was looking for an explanation on, what does it mean on the supply and consumption side when this is above and below 50? Thanks.
The frequency shouldn't change. It should remain at 50 unless there's something wrong at the power station lol. Just means that the standard power station generator has a complete rotation 50 times a second and so induces a 50Hz wave on the power lines.
The only thing I can think of that modifies the frequency of power lines are "powerline" networks, which use frequency modulation to transfer data between powerline adapters.
For more info on the 50hz and three phase power generation...
czcams.com/video/4oRT7PoXSS0/video.html
The US uses 60hz and UK 50hz this has to do with the generator alternator in terms of number of poles and RPM.
Electric for dummies video, great job.
Where did you get the transmission tower model figure?
I
The pylon is from a hornby train set model
Still don't understand why Scotland produces vastly more electricity than it uses but pays more per unit than anywhere else in the UK? Looks like we are charged for the transportation of power to the south?
wow
How much we lost energy while transformation
my teacher forced me to watch this
Where can I get that prop?
The pylons are made by Hornby for their train sets - much better than the paper/card ones supplied by Irwin.
coming from power station is there two or three or x wires?
Just two wires - technically one out and one in.
ok. how do they supply 3 phase to industrial places?
@@fredgarvin4482 All electricity generated from a power station is really three phase. When Electricity is supplied to a house only (domestic supply) one of the three phases is used. To generate three phase a generator is used that creates three phase. in the lab we don't normally teach this but I will put this on our todo list.
@@PhilipRussell thank you for the reply. I have watched many hours on the tube to learn up about house wiring and a bit on distribution network. the distribution side is the part that is not covered very deep at all.
Houses do not run on 12 volts. Pylons do not carry 240 volts. Please explain stating the correct voltages.
This is a model of the National Grid as a demonstration of how it works. Sending high voltages around a classroom would be lethal.
@@PhilipRussell STATING the correct voltages. (Sending around a classroom, how ridiculous).
Is that all powerstations generate? 12 volts? wow
They could do, but they don't. They don't even make 230V that the houses use either.
such a misleading video. very bad delete it, you leading people wrongly. No power station can convert dc to ac at least its not standard. most houses do not use 12v so whats the point of the video 🤔
Aren't we missing the converting of coal or gas or nuclear to energy in the power station?
In this video I have only covered how power gets from the power station to a house via an AC transformer to reduced the energy lost. I have not covered how a power station makes the electricity. For thsat you need to watch some of my other videos
@@PhilipRussell thanks for answering me. I appreciate it! I'm interested in your video because of the grid threat that the economic forum intends to 'inflict'. I'm not sure I can survive without certain systems. I'm considering a radio phone, a generator, and possibly buying or organizing small "power station" machines.
But my house is not 12v am not in a dolls house. Mine is 249 Volt
and I would have needed a slightly larger transformer, pylons and power station! But its the principle.
But where does the national grid get the electricity from? And why didnt they bury the cables like every other utility? Doesn't make sense to put these eyesores up all over the country side when everything else travels underground.
The National grid gets its power from all the power station s in the country as they are all connected to the same grid. So if one goes down all the others supply the electricity. Underground cables are used in the towns , but it is considerably cheaper to use overhead power cables fpr the main runs between towns.
@@PhilipRussell very interesting. Why we pay for electricity to so called 'suppliers' if they supply nothing. If I understand right National Grid provides it. Can we pay them directly? How National Grid collects they energy to the power stations?
@@czylichilli The suppliers make the electricity. The National Grid moves that electricity around the country. A company pays for so much electricity to be made and then the house has a meter to record how much you use. You then pay the company for how much you use and they if they have done their sums right make a profit. With the current rising in prices and electricity companies buy gas to make electricity, because it is getting more expensive the companies are paying out more money to the electrical suppliers than they get from their customers so they are going bust.
@@PhilipRussell thank you for taking the time to answer.
@@PhilipRussell how exactly are the suppliers creating this electricity? You say they make it. And you say they pay for it. That doesn't make sense, if they can "make" electricity why would they need to buy it? How is electric the "green" power if they burn gas or coal to create it? Do you ever question these things or beleive everything your told?
How many klm in the national grid.
How much does the grid cost to build per klm.
Why build more than one line of transmission towers.
Just use one ?
Did the national grid take a century to construct ?
If no fossil fuels in the future do we need 5 times more electricity, 5 times more grid capacity and 5 times more generators ???
Great minds discuss ideas.😊😊
Average minds discuss events.
Small minds discuss people.😮
Am not sure if i accept this example you choose. 12v dc can not be converted to 240v ac by any power company in most parts of the world as standard especially in the Uk. So very bad example. he should have stock to 240v ac step up by transformer to 11kv for long distance transmission then when it arrives it is stepped down to 240v ac. for consumption in house. This was a big issue b/w Eddison and Tesla. pleass dont mix things up if you dont understand it. Mentioning 12v messes up everything. Nobody uses 12v in their home. 12v is normally Direct current. The US uses 120v and UK 220v a.c.
In the video I only talk about AC electricity and use only AC electricity. This is a demo model. I take 12v AC step up to 240V AC and then step down to 12V AC. The real thing uses higher voltages and a real power station and huge transformers. These are not practical in a lab situation. If you watch the video again you will see that I used AC and talked about AC. The US uses 120V AC and the UK actually uses 240V AC, (labelled as 220V +/- 10% AC by the EU).
BS. Those pylons are Tesla Towers. Different models have its capacity. It need a Transformers yes. AIR cables cannot be underground since they harness electricity. Electricity =Electric City in 1700
No those pylons are just pylons that support a wire or several. The wires from the power stations can either go across the country from the power station to the city over ground which is cheap or underground which is expensive. The pylons do not make any electricity. The electricity is generated in a power station. The idea of the National grid is to use up as little energy as possible and to link all power stations to all the houses, so if any power station fails then the houses still get electricity.
@@pengi288NO. Watch all different pylons. Each one has its own CAPACITY . Its NOT A stronger infrastructure. You Still havent understood why they built The Eiffeltower to support The Paris World exhibitions with electricity or have looked at One World tower antenna with its huge metalballs on Each of The 5 balconies.
@@lauralauren6432, you mean the capacity for the pylons to suspend (hold) wires?
pylons suspend wires which carry the electricity but they do not generate static electricity as tesla coils do
the Eiffel tower was a (temporary) radio antenna Built for the 1889 world exhibition in Paris but never supported power cables
but had wires connected to the power grid which were suspended on pylons
@@pengi288 NO every model of pylons has it TW capacity. Not strength. Wqth The equipment they have removed from Eiffeltower. It was Not feo radiocommunications. Watch The Whole exhibition being lit up. There are powerlines from nonpowerplant. The electricity are being Transfomed in The Transformator. The ceramics discs. Sorry for my Swenglish chinadialogue.net/en/energy/10376-sparks-fly-over-ultra-high-voltage-power-lines/
Yes I agree . And thank you for sharing your wisdom. If they were simply moving the electricity then why such gigantic monstrous structures? Energy is free and slowly the cognitive dissonance is dissolving and people are realising the truth
wtf 1:53
How to get the baby in the baby
total bs. there's no underground cables and most of the power plants are no longer in use.
why are most substations located next to running water? you'd think the last place you'd want a substation is next to water..
every large venue that requires huge amounts of electricity also located next to running water. this is fact.
In the UK we have loads of underground electricity cables - we can see all the manholes. Generally the overhead cables go to the towns and cities then they are underground. In some scenic areas the main grids lines are underground to preserve look of the countryside. Where they are are clearly marked on all UK Maps for safety reasons. The Govt have shut some power station sites those powered by coal, except Drax which is converting to renewables and brought new types online and these are all connected to the grid. We are slowly replacing our old Nuclear power stations with new ones- they only have a lifetime of 25-30 years. Most of our power stations are running and we all have electricity we need - no brown outs in this country - because of the National Grid. The substations are near water - this is for cooling - the substations are water cooled, that's why they are so close. Venues are close to water - I would guess so because in the UK we have a lot of rivers that goes with a lot of rain, that probably the reason that many venues are close to water and the fact that cities in the UK generally were built around river crossings. However the National Grid still works the same, the power stations make the electricity, the transformers raise the voltage and decrease the current to minimise energy loss and the pylons and underground cables take the electricity from all the power stations to all parts of the country where at a substation the high voltage is converted back to what is used in the factories and the domestic homes. That is what the National grid does - takes electricity from all power stations to all homes NO BS.
@@PhilipRussell Answer me this then...
Why is every sports stadium, shopping centre, industrial complex or other places that require huge amounts of electricity located next to rivers?
I have over 30k followers on twitter and telegram and not one of my followers in any country could prove this wrong...
There's no such thing as coincidence.
Even Scottish Power now call themselves Scottish hydro electric.
All electric is generated from water...its very simple to do.
Electricity terms are even named after water.
Nuclear plants are a hoax. They are empty. No one works in them.
Where is all the footage of the nuclear reactors..its such a con
Hydro dams are well established.
You can generate free electricity from still water with a ram pump and hydro wheel generator.
I've covered this topic in depth.
Look at your local sports stadiums and see for yourself they are all next to rivers...then look up any shopping centre..
Tell me I'm wrong
weirdo