Introduction to Per Unit Systems in Power Systems Part 1a
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- Опубликовано: 11 фев 2025
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This series will teach us about the significance of per unit systems in power systems analysis and help us intuitively understand the calculations involved.
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I'm a graduating student of EE and this is the kind of learning that I need in Per Unit Systems.
all the videos on youtube focus more solving question...you explained the basic meaning and need of the thing..great video
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This is very helpful I was searching for the basic principles regarding this topic thank you vermuch
You're welcome :)
Hi , Ilike your lecture .Thanks
Thank you very easy explain
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Great explanation keep going
Do all the concepts in power system 👍
Really I like your videos
Thank you for admiring our videos and we are pleased to see that our hard work is beneficial to you. To continue making these videos we definitely need your support and encouragement. In this way, we will be able to provide you a much more valuable content. Would you like to support us in this regard and become our patron? If yes, then please visit patreon.com/generalpac. Looking forward to greeting you as a patron.
love all your videos mate.
thank you very much for this
Thanq soomuch sir, good explanation,,,👍iam new subscription 🤗🤗🤗...
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Great explanation 😊
Great one!
great! The Music at the background of your other videos makes the video sound more pleasing to the ear, but it's not in this episode.
Thank you
How will we calculate efficiency and voltage regulation of a single phase transformer at 1.0 PER UNIT LOAD and 0.8 power factor lagging ( provided we are given open circuit and short circuit power, voltage and current along with kva rating and turns ratio of the transformer)🙏🏻🙏🏻🙏🏻 please help with my doubt asap...
Hi Anshika, The efficiency and voltage regulation formula for a single-phase transformer is almost the same as a three-phase transformer, though the only difference is single-phase transformer does not have 3 or √3 factors in output power.
The formula for single-phase transformer efficiency is
η = (V2*I2*p.f)/(V2*I2*p.f+ copper loss+ core loss)
Where,
η = Efficiency of transformer at full load (1.0 per unit load as mentioned in the question)
V2 = Secondary Voltage
I2 = Secondary Current
p.f = power factor
Since,
S2 = V2*I2 (kVA rating of the transformer)
We can further express the formula as :
η=(S2*p.f)/(S2*p.f+ copper loss+ core loss)
While the formula for voltage regulation is calculated as:
Voltage regulation= (|V2nl|-|V2fl|)/|V2fl|
Where,
V2nl = No load Secondary Voltage
V2fl = Full load Secondary Voltage
V1 = Primary Voltage
a = turn ratio of primary and secondary (N1/N2)
The simplified formula according to the given condition can be expressed as:
Voltage regulation= (|V1/a|-|V2fl|)/|V2fl|
You can also go through our blogs related to transformers for further understanding:
- www.allumiax.com/blog/transformers-its-working-construction-types-and-uses
- www.allumiax.com/blog/types-of-transformer
Hope you find it useful.
Regards,
GeneralPAC by AllumiaX
Fantastic sir easily understand 👌👌👌
Nice explanation ✨
Thank you for your appreciation. We're glad that you liked our videos. Stay tuned for more intuitive lectures!
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Thanks
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What software are you using to record this lesson? And to write on a black screen?
i need a book or pdf for the power system subject. I have now can give me some please your book if you have, i hardly needed so that i can pass this major subject, your help will be a great help...
Hi there! The major power system topics that you may be studying are completely covered in our video tutorials. We select the best examples and problems from among the power system books for our tutorials. You can join us at www.patreon.com/join/generalpac to have early access to complete topic tutorials! 😊
In addition to that, you can also reference to the top Power Systems Books which are widely used all over the world and we also use examples from these books and standards.
1: Principles of Power Systems V.K Mehta
2: Power systems Analysis by John Grainger
3: Electrical Power Systems - C L Wadhwa