Electrical PE Exam - Per-Unit (PU Conversion)

[@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.

[@walterbrown8694]

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.

[@HamzasaeedKhan]

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

[@muhammadtanvir5298]

Thank you. Lucid explanation on per unit conversion.

[@darylreuben4871]

But how does this work with transformers damnit! Gaaaaahhhhh

[@ManuMitra]

Transformers works on the principle called mutual inductance. If you know how does inductance works. Transformer is like having two inductors beside one another.

[@enbardis]

Manu Mitra really? He means what do you do with the bases to deal with transformers. Not Litterally how does a transformer work.