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Here is the problem im talking about. doesnt look like it attached properly in my first post

Hi, can someone explain to me the whole 'two wires' thing in single phase circuit and why the impedance is 2 times. Thanks in advance

thanks for the replies gentlemen

Hi, this is a figure in the 2016 printing of the Graffeo book, page 148. Is there a typo in describing the direction of current above the CT on I2 side? The description is the same before and after the fault...why?  I tried checking the errata on Graffeo's website but this page is not...

Thanks! Your explanation really helped.

Hi, My challenge is Ex. 53 d) of the Graffeo book, 2016 printing. see attached photo. The part where he says "now square it to get rid of the j" Why is it not (3Rg)^2 = (0.48-j0.38)^2 ?? am I an *****? Im being serious.

yea, i was being dead serious. it just wasn't coming to me how to convert the 35xj30 to polar (been out of school for a long time). Thanks for the tip. The trigonometry is slowly coming back to me.

Can someone please explain to me ex.10 in the graffeo EE guide to passing the power PE book? I don't understand how to get 22.78 49.4 degress from Zld = 35(j30)/(35+j30)