 ibrahimsd5(m): 8:42am On May 18 |
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$
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| ibrahimsd5(m): 6:41pm On Mar 23 |
IduNaOba:
If you play e football well well
You will see osimhen dropping back to help defend and still position properly to score when his team moves to attack.
He does it on real life too
That's why I prefer him to halland
Show time halaand card does same too.. beside i be avid efootball player.
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| ibrahimsd5(m): 3:20pm On Mar 18 |
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I begged my parents to buy zobo for me dem refused, Naso I carry otapiapia omo dem later buy peak milk for me that night 😂😂
2 Likes |
| ibrahimsd5(m): 4:14pm On Mar 11 |
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Kiss the truth
1 Like 1 Share |
| ibrahimsd5(m): 6:29pm On Mar 03 |
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Hmm
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| ibrahimsd5(m): 10:45pm On Dec 27, 2024 |
Hellisreal70:
The local gov area of origin column is not opening. I can't fill it so I'm unable to submit my application. What can I do now?
Use edge browser on pc make sure ur Internet connection is strong. Once the page opens select ur state of origin and local government shikenan.
4 Likes |
| ibrahimsd5(m): 7:04pm On Dec 12, 2024 |
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I trust my president he works in mysterious ways i call him the Nigerian Raymond Reddington.
7 Likes |
| ibrahimsd5(m): 7:01pm On Dec 12, 2024 |
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It will all be painfully clear soon enough
1 Like |
| ibrahimsd5(m): 10:28pm On Nov 22, 2024 |
Angelfrost:
No extreme weather is good for the health...!
However, you are wrong!
Extreme cold does far more damage to the body and health than heat.
Frostbite and gangrene can lead to loss of limbs, even death.
The guy should watch wind river 2017 he will know what cold does to human body
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| ibrahimsd5(m): 10:37am On Nov 22, 2024 |
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I'm a muslim and i would like to marry a practicing Christian sister.
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| ibrahimsd5(m): 8:40pm On Nov 14, 2024 |
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😁
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| ibrahimsd5(m): 6:01pm On Oct 24, 2024 |
J2ff:
What causes national electricity grid collapse and how it occurs
Written By:
Habu Sadiek
Power Sector Analyst
Let us take a look at what causes national electricity grid collapse and how it occurs.
What will happen before a grid collapses.
I will try to explain in a layman’s way.
There are 26-grid connected power plants currently.
These power plants generate the power that the entire country uses, and it's synchronised and distributed across the country by the TCN.
TCN are the ones that handle the distribution of power by sending it to Discos.
TCN is a government owned entity that majorly operates in three (3) different departments.
1. Transmission Service Provider (TSP)
2. System Operator (SO)
3. Market Operator (MO)
- TSP are the ones in charge of maintaining the cables and towers that transmit the light.
- MO are the ones that handle market processes, rules, enforcement, finances, etc.
- SO are the ones in charge of maintaining and stabilising our national grid.
National grid is the interconnections of high transmission wires/cables across the country.
Grid frequency measures the demand and supply of electricity despatch to consumers from the Gencos.
Frequency meters are measured in hertz (Hz).
Based on the grid code, our normal frequency level is supposed to be 50Hz.
Example:
If the current power generation is 4000MWh and people are using all the 4000MWh, then supply is equal to demand, and frequency should be 50Hz.
This is a perfect condition that is highly unlikely.
If we are generating 4000MWh and People are using 3700Mwh, then obviously supply is higher than demand, and for that reason, the frequency will show you 51Hz.
If we are generating 4000MWh and people are trying to use 4200MWh, demand is higher than supply, and for that reason, the frequency will show 49Hz.
I know you will ask me how you can be generating 4000MWh and be trying to use 4200MWh😅😅
Take, for instance, your using I--my-neighbour generator, and you're trying to connect 2HP A.C. with microwave on the generator😂
The generator will just automatically shut down.
That's how it happens, too, on the national grid.
Nigerian national grid is set to operate on a designated frequency level
Upper limit = 51.25Hz
Lower limit = 48.75Hz
The job of an S.O. is to make sure that the frequency movement is in between these 2 levels
Any significant deviation from these 2 levels, i.e., if it exceeds the threshold above or below it, such might trigger a national grid collapse.
A grid collapse is not like a collapse that something bad happens, no. The 26 grid connected generators will automatically shut down because of safety and security reasons.
In your houses, if you have a serious electrical fault, the circuit breaker will trip off to shut down the entire supply and protect everyone from potential injury or damages.
The demand for electricity is not static. For example, let's say you have 10 ACs in your house and other appliances.
In full capacity, your house is consuming 500Kwh, and average capacity can be 300Kwh or less.
Lets say in this hot weather, they only allocate 250Kwh to your house, and you're trying to use it in full capacity, if you switch on everything the demand will exceed the available supply you have and for that reason the light will automatically go off
These are all examples of how a demand is trying to exceed supply and how the system will protect itself.
On the flip side, when supply exceeds demand, the system will equally go off for safety reasons.
In Nigeria, supply does not always exceed demand unless there is an adverse event that occurs. I will explain.
In 2022, when TCN unions (NUEE) decide to go on strike, they just off the light abruptly without notice nor following the normal process, this trigger imbalance
Between the demand and supply.
They off the electricity around Abuja axis and co areas without the S.O. necessarily transferring the load somewhere. This resulted in higher supply, less demand because the generators are working, but nobody to pick load. It means
For E.g, there is 4000MWh being generated from GenCos. You went ahead to shut down almost 500MWh without channelling that MWh somewhere else. It becomes a redundant, and the system does not accept redundancy. For that reason, the entire power plants go off to protect itself
The frequency will be showing something more than 52Hz in some cases because supply is higher than demand.
This is why you will see that they will bring light now and take it off again.
The demand is not static, and as its changing, the S.O. will also be Making sure that the supply is reasonable enough to maintain frequency reading within the allowable limit.
TCN will ask a disco to take 200Mw, and within a short time, they will reduce that 200Mw to 190Mw depending on how generation and demand are behaving
This is all done to protect the grid and maintain balance.
If TCN asks Disco to reduce the MW, that's when you see discos taking light off, or maybe if there is a major repair.
Also, if there is a repair and a disco can not offtake power, then either the disco rechannel it Somewhere or the TCN will do it themselves.
What causes grid collapse is not a deflection of small MW in the generation pool. It has to be a major disruption that is SIGNIFICANT enough to create imbalance within short time, making it impossible for the S.O. to react immediately.
You have a generation pool of 4000MW, and a sudden problem occurs at the transmission line, which takes out almost 500MW off. This is significant enough to cause grid collapse.
Even that 500MW, it has to be so fast that the S.O. cannot react at the immediate point.
Disruption like 10MW, 20MW is not significant enough, and it's usually handled by the S.O. or even the disco
Other ways to maintain the grid without collapsing is to have the full and complete use of Supervisory Control and Data Acquisition (SCADA).
This will make it easy for the S.O. to react faster and save the grid from collapsing.
Spinning reserve is also another option
But we do not have enough generation talkless of having a spinning reserve 😅😅
Reserve means a situation where demand is increasing, and you're matching up the demand by increasing supply immediately 😅
After grid collapses, the S.O. will immediately order the restoration or start off of power plants again. They usually call it black start.
They initiate the power plant and begin to give electricity to strategic discos gradually
It's a normal process, just like when your circuit breaker trips off, then you fix it and on your light again.
This is why the grid will collapse, and they will restart it before the news even go out. By the time its in the news, some people will be saying, but we have light😂
Need to also mention that some power plants are not connected to the grid, and there is partial collapse and system-wide collapse. These can also be the reason why someone from a far away remote location can be claiming to have light when the grid collapses.😅
Written By:
Habu Sadiek
Power Sector Analyst
Detailed explanation
1 Like |
| ibrahimsd5(m): 6:00pm On Oct 24, 2024 |
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7 days we no get light
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| ibrahimsd5(m): 10:59am On Sep 13, 2024 |
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Masha Allah
4 Likes |
| ibrahimsd5(m): 7:33pm On May 18, 2024 |
Mariangeles:
What is that food you simply can't give up eating, no matter what they say about it?
Mine is kilishi. 
Yeah, I've read all sorts about it, but I simply can't give up its sweet and spicy goodness. 🥵
What is yours?
Picture credit: Mariangeles
🥚 egg
2 Likes |
| ibrahimsd5(m): 5:41pm On Apr 30, 2024 |
issokay 
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| ibrahimsd5(m): 4:15pm On Nov 28, 2023 |
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1 Like |
| ibrahimsd5(m): 3:52pm On Aug 01, 2023 |
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| ibrahimsd5(m): 5:56pm On Jul 08, 2023 |
Out of time by the weeknd
helinues:
Of course , we all have our favorite songs that we can sing along to lyrically.
If you were to sing at Karaoke's night, which song would you sing to?
As for me
Nick Jonas - This is heaven
Rihanna - Rehab
Miley Cyrus - When I look at you
Harry Styles - Watermelon Sugar
Justin Bieber - Lonely
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| ibrahimsd5(m): 9:11pm On May 20, 2023 |
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| ibrahimsd5(m): 3:18pm On May 10, 2023 |
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| ibrahimsd5(m): 8:02am On Apr 23, 2023 |
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4 Likes |
| ibrahimsd5(m): 8:01am On Apr 23, 2023 |
Seagodess:
Can it play e football?
Definitely yes
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| ibrahimsd5(m): 11:39pm On Apr 02, 2023 |
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Yes daddy
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| ibrahimsd5(m): 8:37pm On Mar 31, 2023 |
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Mass exodus
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| ibrahimsd5(m): 7:54am On Jan 25, 2023 |
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| ibrahimsd5(m): 11:13am On Jan 12, 2023 |
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| ibrahimsd5(m): 1:34pm On Dec 31, 2022 |
Kabirudeen25:
I'll go first.
Beat song.. Levitating by Dua Lipa and Lil Baby
Best movie.. Bullet train.
Best song : out of time by the weeknd
Best movie: The originals
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| ibrahimsd5(m): 3:17pm On Oct 07, 2022 |
JJuanMiguel:
They don't need to go on strike to achieve that.
ASUU should stop lying and deceiving nuc officials during accreditation exercise.
They should be opened and allow any program lacking in areas of infrastructure and equipment to lose accreditation. That way the VC and senate will be forced to act to get it back.
Lecturers are fond of rigging the process but will be the first to start crying about inadequacies once the officials are gone.
They are also quick to hide under this guise to present their selfish demands.
ASUU main interest is to be on huge salaries to live luxurious life, even though that's not bad but they can't continue to waste students time to try and achieve that.
F.g masters of trickery
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| ibrahimsd5(m): 6:08pm On Aug 19, 2022 |
yemite100:
I want you to advise me on what to do, I'm finding it hard to ask this girl for sex, she has been with me for the past three days now, we sleep together on the same bed but I'm always scared to touch her in the night, even as i type this message she is beside me watching Korean fil
It's really giving me sleepless night, I don't know how to ask her for sex I cant even touch her body..
I need your advice guys..
Stop thinking just do
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| ibrahimsd5(m): 10:43am On May 22, 2022 |
Kemistri4:
Nairalanders lets have fun,
Mention a line from a popular song and someone will tell you the name of the song
Say i love you girl but I'm out of time
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| ibrahimsd5(m): 1:00pm On May 21, 2022 |
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