Per-unit system calculations - Tutorial 1.part 1
Ғылым және технология
The per unit system is a method of normalizing and simplifying the representation of electrical quantities in power systems.
This Tutorial shows the process of finding the per unit impedance values of an Electrical Network.
Doing a per unit system calculation is very important for finding your short circuit current.
It is commonly used in power system analysis and design to express the magnitudes of various electrical parameters in a consistent and dimensionless manner. The per unit system is particularly useful for comparing and analyzing different components within a power system without being concerned about the specific voltage or current levels.
All Electrical components on a network can be represented with an impedance value in per unit form that is the percentage form, this help a great deal to determine the value of the short circuit current.
Chapters
03:10 - Working with Zone base voltage
07:10 - Zone 1 Generator per-unit
09:58 - Transformer T1 per-unit
#perunit #powersystems #shortcircuit #fault #substation #mva #transformers #generator
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Пікірлер: 25
Donate 1$ to CMTEQ Channel: www.paypal.com/donate/?hosted_button_id=GJH7BWNSJAV7N A cup of coffee will help: www.buymeacoffee.com/cmteq If you ❤️ my content and find it helpful, please Subscribe and hit the Bell 🔔 👇 SUBSCRIBE TO CMTEQ CHANNEL NOW 👇 kzread.info/dron/C2JZe1SgKN3kG1wiYgr2kA.html Drop a comment below, ask a question or request for clarification, all engagements are welcomed.
@CMTEQ
3 жыл бұрын
Careful with hacking peace of software that you have no control over the source code.
Fantastic my friend very good. Not too fast. Easy to understand! Thank you!
@CMTEQ
Жыл бұрын
Glad it helped!
Thankyou so much. You are the best man that describes complicated topic give easy to understand. Honestly you're so cool 👍
@CMTEQ
Ай бұрын
Thank you for your kind words. I'm it was useful 👍
Thank you very much, this helped me understand pu systems
@CMTEQ
3 жыл бұрын
Glad it helped! Please consider subscribing, there will be many tutorials on fault calculations, which is the main purpose of pu system.
Very good information. Thanks
@CMTEQ
3 жыл бұрын
You are welcome. Stay tuned for more tutorial like this coming up, even more complex fault current calculations.
Part 2 of this Tutorial will be uploaded tonight. I will solve Zone 2 and Zone 3. Part 2 Link kzread.info/dash/bejne/p2ics7elqNjLeJs.html
Hi, I like your lecture. Thanks
@CMTEQ
2 жыл бұрын
So nice of you, thank you for subscribing, I hope you also gave a thumbs up.👍
thank you
@CMTEQ
2 жыл бұрын
Absolute pleasure 🙏, thank you for liking 👍 and subscribing. Stay tuned.
@baraamakkawe8948
2 жыл бұрын
@@CMTEQ i did that without saying that ☺️
@CMTEQ
2 жыл бұрын
I realized that, thank you for the support.
Hello, for the old and new values for transformer 2, did you accidentally mix them up?
@CMTEQ
2 ай бұрын
Hi yes on Part 2 of the tutorial, T2 values got mixed up while writing them down, but the values where applied correctly on the formula hence the final answer was correct. I hope it was helpfull.
may you please help me with drawing the per unit of a street lighting system where a mini substation is feeding 4 transformers and those transformers are feeding 300 light poles each
@CMTEQ
3 жыл бұрын
You need a feeder System, you already have the sketch on your statement just put it on pen and paper. Each transformer will feed about 75 lights, those light can be reduced to a resistive load with x amount of kVA or MVA depending on how big of the load they are, then you need to know your cables impedances so you can calculate the per unit from it. Draw it and DM it to me on my Twitter handle @CMTEQ1 will have a look for you. I hope you have already subscribed.
So for transformers, we use any other Vbo(250/800 KV) we want?. For example, you used 250KV instead of 800KV
@CMTEQ
Жыл бұрын
Hi Vincent, base voltages depends on Zone voltages as per transformers voltage level. I recomend you watch more vidoes to get a good undertanding. If you want a session with me you can Join my channel membership I will assist with expalnation and clarifications.
Why do You have a French accent from congo? 😉 Thank you for the tutorial
@CMTEQ
2 жыл бұрын
Tako Mbongo, why is your name meaning money 💰?