How to Base Change Per Unit and Percent Impedance Part 2 (Electrical Power PE Exam)

[@FM-uo4rv]

This simple video helped me understand what it took me a whole semester to understand back when I was in college.

[@jtthomas1]

So much simpler when you go through it this way!

[@harshtalwar5021]

Hi Zach, one of my favorite videos of yours. explaining base changing in detail.

[@aaroncurry6281]

Great lecture. In college, I just task myself to remembering the pu base change formula. It makes it a whole lot easier to remember knowing how to derive the equation. Thanks Zach

[@electricalpereview]

You're welcome Aaron, glad you found the video helpful.

[@SOLOTHUG]

Thank you so much for this 2 part series Zach.

[@dannyrzk]

Zach, this P.U. video is pretty good, and right on time. Thanks

[@electricalpereview]

Hi Daniel, glad you found it helpful.

[@wisdomakanwe513]

wonderful explanation

[@adl9705]

I love P.U problems, thanks!

[@ChristopherEarly]

This is a great explantion video

[@subrinanoureen]

Great Video. helped me a lot

[@bongcajucom7880]

Hello Good day! May I request you to give another example of per unit method calculation, and how to solve voltage drop calculation. thanks

[@electricalpereview]

Hi @bong, for per unit method, try this article: www.electricalpereview.com/per-unit-example-tips-tricks-watch-electrical-pe-exam/

[@AlbertaDMode]

Great example. And if (zone 1) say T1 secondary is 13.0kV... (Vo/Vn)^2 would be (13.8kV/13.0kV)^2.. am I correct?

[@electricalpereview]

That is correct!

[@KAFKUBA]

Why didn't you voltage transform zone 2?

[@electricalpereview]

No need to since transformer 2's ratings were chosen as the new base values in this system. That makes the new base voltage in zone 2 equal to the transformer 2's primary rated voltage.

[@KAFKUBA]

@@electricalpereview thanks

[@jimmytimmy34]

Your audio is much lower than most videos. I suggest boosting it up a bit on future videos.

[@electricalpereview]

Thanks for the feedback James. Hopefully you are still able to hear the contents of the video.

[@lilbigboyx6478]

Hello