Introduction to Per Unit Systems in Power Systems Part 1a

[@Generalpac]

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[@jackcamacho3850]

I'm a graduating student of EE and this is the kind of learning that I need in Per Unit Systems.

[@rahulbhardwaj4380]

all the videos on youtube focus more solving question...you explained the basic meaning and need of the thing..great video

[@Generalpac]

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[@ithertz8628]

This is very helpful I was searching for the basic principles regarding this topic thank you vermuch

[@Generalpac]

You're welcome :)

[@ManojIllangasooriya]

love all your videos mate.

[@ZuhairAlsagar]

Thank you very easy explain

[@Generalpac]

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[@anshikashukla6315]

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...

[@Generalpac]

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

[@hariprashath7972]

Great explanation keep going Do all the concepts in power system 👍 Really I like your videos

[@Generalpac]

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[@venkatavenkey3842]

Thanq soomuch sir, good explanation,,,👍iam new subscription 🤗🤗🤗...

[@Generalpac]

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[@sohailjanjua123]

Hi , Ilike your lecture .Thanks

[@vee_2412]

thank you very much for this

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[@bhavanagupta1230]

Great explanation 😊

[@tamjidkabir1543]

Great one!

[@chayae3740]

Fantastic sir easily understand 👌👌👌

[@oluwaseyiolusanya9216]

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.

[@abderrahimtaouni2529]

What software are you using to record this lesson? And to write on a black screen?

[@searchingmyself8533]

Nice explanation ✨

[@Generalpac]

Thank you for your appreciation. We're glad that you liked our videos. Stay tuned for more intuitive lectures! We are currently offering great discounts on our paid Power System Courses, you can have a look at those courses here: www.allumiax.com/learn

[@namankeshari7332]

Thank you

[@hafizghulammuhayuddin3636]

Thanks

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[@j.noeltobby7534]

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...

[@Generalpac]

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