Electrical PE Exam - Per-Unit (PU Conversion)

An explanation of the per-unit conversion formula for percentage impedance.

[bucknelljay]

Thanks for the video. It would be really helpful to have another vid where you go through one typical PE problem using the per-unit analysis. I find this to be one of the most simple yet frustrating topics on the PE.

[walterbrown]

You stated that one of the assumptions in 3 phase system analysis is a POWER base. That is not correct - the proper base in such analyses is MVA (Mega-Volt-Amps) which includes the "imaginary" power present, and the reactance part of the impedance. Z =( KV^2)/MVA.

[muhammadtanvir]

Thank you. Lucid explanation on per unit conversion.

[HamzasaeedKhan]

The per unit value of Z22kV line = (2 +j 3.5) Ω on a 15 MVA Base is:
How to solve this one?

[darylreuben]

But how does this work with transformers damnit!