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Justin details their content as the same: Test yourself in all the Power PE Exam topics Measurement & Instrumentation (4 of 80 problems) Applications (8 of 80 problems) Codes & Standards (12 of 80 problems) Circuit Analysis (9 of 80 problems) Devices & Power...

Pm'd you yesterday 

Hello.  I was having a discussion with Roy through PM regarding "Differential Protection of a Three-phase Wye-Delta or Delta-Wye" and wanted to upload 2 related problems.   Roy as I had mentioned, 3-Ph  Wye-Delta or Delta-Wye connected Transformers produce 30 degree phase shifts in Line...

Correct - I had:  *Znew = 10 angle(30)  x (400/480)^2 = 6.94 angle (30) *Zdiff = Zold- Znew = 10 angle(30) - 6.94 angle(30) = 3.06 angle(30)  Thanks Roy - I don't think the correction was made on the guide.  

Good-morning all, From the attached problem, can anyone help me find a reference as to where:  "impedance of the new transformer will be reduced by the square of the voltage change" comes from?   I initially solved this problem by Znew = zold * (Vold/Vnew)^2 but I am assuming it will not work...

Good evening. I am looking for the these references. If anyone is looking to sell theirs, please message me. Thank you.

Greetings, Although I may not be active in the forum, I have been putting consistent studying while reading past posts related to the Power Pe Exam (has been extremely helpful in directing me towards approach, resources and over all motivation). I do appreciate Roy publicly expressing...

Congrats and great write-up on your Experience Ricardo. I’d like to know how long did you do Zach’s Pe Review course. Also, are you selling any of the materials by any chance (I pm’d you asking the same)? Thanks !