Why Reactive Power is Necessary ? | The Best Explanation

Why Reactive Power is Necessary ? | The Best Explanation | What is Reactive Power ?

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4 жыл бұрын

Why Reactive Power is Necessary ? | The Best Explanation | What is Reactive Power ?
Is Reactive Power Useless ? | What is Reactive Power ? | Reactive Power Compensation
The Engineering and Science students find hard time to understand the concept of Reactive Power in Electrical Power System? Many say, Reactive power is useless power as it does not contribute to any real work.
Considering the interest on this topic among student community, we , Build the Basics KZfaq channel, have thrown some light on the concept of Reactive Power.
The generating stations generate electric power and it is transmitted to load centers using transmission lines and to each customer through using power distribution network. In this process, the power generated by the generating station is not fully consumed by the loads. There is some power loss in the transmission and distributed system due to the line internal resistance, R. Current, I, flowing through these lines results in power losses. You cant avoid the current flow due to the power demand in the load centers. On top of that additional currents due the reactive nature of the transmission lines and loads will result. This will increase further losses in the transmission lined and also voltage drop across the line. This is the drawback of this additional current due to reactive power.
Then What is the advantage of the reactive power ?
Cant we avoid this current additional current in the transmission lines in the process of availing the advantage of reactive power ?
The answers to these questions are given in this video.
Don’t forget to subscribe to this video and click on the bell button to watch such interesting videos in future.
Reactive Power Compensation
Reactive Power Control
Voltage Control in Power System
Why Reactive Power is necessary ?, The Best explanation,
Reactive Power Consumption,
Power factor triangle,
Reactive power consumption,
Reactive Power Production,
Inductive Reactive Power,
Instantaneous power in ac circuits,
power factor correction capacitor,
power factor in ac circuit,
ac power analysis,
power factor improvement,
reactive power control,
voltage control,
reactive power control in power system,
reactive power concept,
reactive power control in transmission line,
reactive power control synchronous generator,

Пікірлер: 77

@sakthivelnathan8525 3 жыл бұрын

Extremely useful. These simple facts are never written in any textbook in a simple manner as you explained in this video. I did study numerous books, but this 9 mints video made me clear. Thanks a lot for your service in disseminating your knowledge.

@jarrydnii9993 3 ай бұрын

Also, reactive power is useful for induction generators that do not have an external excitation system like sync. generators. The presence of Q in the rotor and stator windings provides a magnetizing current that establishes the rotating magnetic field in the rotor. That rotating magnetic field cuts the stator coils, which induces a voltage (electromagnetic induction), that results in current flowing in the stator coils. The stator is connected to the grid so this product of current and voltage is the power delivered into the grid.

@HeavyMetalPianoChnl 3 жыл бұрын

Thank you very much! I am trying to understand why, when I run a load flow simulation, the bus voltages are less than nominal without reactive power compensation and then why adding compensation props them back up. This was very useful!

@JohnWilliams-qu8nr Жыл бұрын

I now understand that there is leading AND lagging reactive power. This use to confuse me. Great video and explanations- thank you!!

@santiospina4504 3 жыл бұрын

Finally a satisfactory explanation of this topic!!! Thank you very much :)

@buildfrombasics3124 3 жыл бұрын

Glad it was helpful!

@ajaiasokan4183 11 ай бұрын

How reactive power produces magnetic field

@peterbenko___ 7 ай бұрын

Hey! Thank you for this video. Subscribed.

@leonardojacometti9883 2 жыл бұрын

Great video

@sweetyturiya7449 3 жыл бұрын

Very well explained.pls make videos on more topics. If possible try to make videos on basic components of electrical engineering. We go through books, we get the things but practically how it works that we don't know. You have made it clear wid the help of presentation. Thanx alot..

@buildfrombasics3124 3 жыл бұрын

Sure. Thanks

@BabarAli-ve5uf 3 жыл бұрын

Helpful.. Thank you

@buildfrombasics3124 3 жыл бұрын

You are welcome

@tasnimsarker4653 4 жыл бұрын

Well explained.😀

@buildfrombasics3124 3 жыл бұрын

Glad you liked it

@mdaadilhaque3030 4 жыл бұрын

Nicely explained..

@buildfrombasics3124 4 жыл бұрын

Thanks,Aadil. Have you watched other videos in our channel,? We appreciate your feedback.

@chrishadjipetris6059 Жыл бұрын

Before watching this video, I know is useful for voltage control. You can control voltage by varying active or reactive power. However, active power is what consumers pay for, hence we choose to control voltage with reactive power. Another important fact is that you can use reactive power either for power factor compensation, or voltage control, but not for both

@syedasad4436 3 жыл бұрын

Well explained and thanks

@buildfrombasics3124 3 жыл бұрын

Glad it was helpful!

@arun4846 Жыл бұрын

👍

@surajphunde1111 3 жыл бұрын

Thank you sir 🙏😊

@jayalaxmiakasani4653 3 жыл бұрын

Thank you sir your explanation from basics are very good

@surendrakverma555 3 жыл бұрын

Good

@buildfrombasics3124 3 жыл бұрын

Thanks

@nujalcordo9924 3 жыл бұрын

What happen to the grid if supply more reactive poWer?

@jarrydnii9993 3 ай бұрын

When you overcompensate reactive power locally by using FACTS devices or shunt capacitors in a transmission or distribution system, it does the same effect as the (Ferranti effect), so to speak, where voltage can increase beyond grid code requirement (voltage instability). If from the generation side, where a synchronous generator is overexcited (i.e., injection of reactive power into the grid), it can cause overloading of lines or transformers because P & Q can compete to flow in a specified line (with limited line flow limits), which can largely reduce efficiency. That is why the power factor is usually monitored to understand the P-Q ratio. The flow of a large amount of Q will incur more reactive losses thus, results in voltage drops. You will realize here that I said earlier the injection of Q increases voltage, and now, I'm saying the flow of Q reduces voltage. YES! That is because Q is usually compensated locally and is not allowed to flow in the grid, although a minimal amount can flow as injected by synchronous generators - that means the exact amount of Q required must be compensated or provided locally to avoid overloading or voltage issues. Generally, in power systems, we can't say one thing that can be seen as a fixed solution, but it changes depending on the application.

@pythonshorts4945 3 жыл бұрын

Beautiful explanation

@learnbyshiva725 3 жыл бұрын

Thanks sir

@buildfrombasics3124 3 жыл бұрын

All the best

@arunpaul5718 3 жыл бұрын

How does dc motor field gets energized since supply is dc voltage and thereby no reactive power????

@insearchofpeace2151 3 жыл бұрын

For any dc motor, if you model the field winding, then there is a winding resistance and an inductor which models the coil which produces the magnetic field. When a DC power source is connected to the field, think of DC power source and the winding as an RL circuit. Active power is I^2*R, and reactive power which is now converted as magnetic field is given by 0.5*L*I^2. I think this the formula. Active Power and Reactive Power are basically AC concepts. Applying them to DC is technically not correct. But this is an explanation based on those lines.

@onfreetime 7 ай бұрын

A current carrying conductor produces magnetic field around it. I think Reactive power is not needed to produce field.

@onfreetime 7 ай бұрын

@insearchofpeace2151 It's not the coil that produces magnetic field. Any conductor which carries current produces field.

@vikasbansal4180 4 жыл бұрын

thanks

@buildfrombasics3124 4 жыл бұрын

Thanks to you too.😊

@EnergySeeker 2 жыл бұрын

is it possible to convert the reactive power to real power and if yes how ?

@ovidius2000 Жыл бұрын

motor,ThenGenerator.

@AayushPatel-gc3fw 7 ай бұрын

No it is not.. reactive power is also known as imaginary power.

@chandanachowdary6727 4 жыл бұрын

Thank you sir,Actually it's a final viva question to me in my B.tech final project. I answered to this question briefly but here I got full information.thank u so much😊😍

@buildfrombasics3124 4 жыл бұрын

Hi Chandana, Glad to know that it helped you.

@MrVijayan55 Ай бұрын

I want ppt for this subject

@philiptamasese1559 2 жыл бұрын

Yes

@tasnimsarker4653 4 жыл бұрын

Please, make video on induction generator working principle.

@buildfrombasics3124 4 жыл бұрын

Sure, Tasnim. We will make it soon.

@buildfrombasics3124 4 жыл бұрын

Thank you

@Nur_Md._Mohiuddin_Chy._Toha 8 ай бұрын

👍👍👍👍👍👍😄😄

@jacobvandijk6525 2 жыл бұрын

0:15 Basic question??? Perhaps for you it is, but not for many of your viewers. It doesn't sound very sympathetic to me.

@veedapusiddhartha4895 3 жыл бұрын

Upload more videos sir

@buildfrombasics3124 3 жыл бұрын

Will upload soon

@rangaswamygoda8010 Жыл бұрын

PPT sir yes

@gyaneshwarsingh1273 4 жыл бұрын

Please send

@bulentatalay9400 3 жыл бұрын

Reactive power is imaginary. And imaginary power is useful only in simplfying the calculations. Trying to understand what reactive power is same as trying to understand what sqrt(-1) is.

@buildfrombasics3124 3 жыл бұрын

Watch this video fully

@ohgoditsjames94 2 жыл бұрын

"Imaginary" doesn't literally mean that it doesn't exist, it means it is a vector quantity, having a magnitude that exists in a time domain. If inductive or capacitive reactance was "imaginary" then we wouldn't have to compensate for it.