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Honestly you guys are killing me with this post! I'm so bummed, but then again I was dazed at how I wasn't expecting the type of questions they asked. I even made some tabs in my reference books which didn't seem to help much, but I dove down and did way better on the afternoon section. I...

I wasn't planning on, but then I figured I might brush up on them. I know laplace and fourier can be a good way to evaluate system stability. I mean them throwing on their bs power electronics questions should be enough bs for the exam. I'd actually prefer serious qualitative questions, that...

I figured as much, but just thought I could sneak the question in and see if any responded. Who would have thought that I would forfeit my life in the process .... lol. Honestly, I think if you prepare somewhat for lighting that you should be okay with any question they might ask. I think...

I'm guessing not, but are Laplace, Fourier Transforms, transistors, or op amps going to be testable material on the PE Power examination?

Was hoping to hear a reply back, but I figured I might also mention that schweitzer solid state relays allow for differential transformer protection connections on any CT wiring configuration (wye-wye, delta-wye ... etc). Those relays are sofisticated enough to differentiate the zero sequence...

Maybe an unreasonable request, but figured there might be someone around the twin cities (minneapolis, mn) that might like having someone else around to solve problems with. I'm definetely planning on investing some hours these next couple of weekends (just solving problems) and think it would...

Ha, I'm not going to fork out the money for the much hyped IESNA lighting handbook lmao. I think you can pick up an older version of the handbook before they became IESNA (they were IES) cheap. I'm seriously going to look over the lighting portion in the power handbook calculations by beatty...

I'm sorry for replying only to your posts ... I think VOM and current metering are covered really well in the Protective Relaying book by blackburn. The power calculation handbook also has a few problems. As an aside I thought using the two volt meters for three phase power question in the...

I haven't seen the problem, but agree that the solution seems a little confusing. I know they recommend connecting the wye side CTs in a delta configuration to remedy zero sequence circulating currents, which could cause the relay to pick up on say a ground fault (nuasance trip). I think the...

Sorry to beat this into the ground, but I think the actual integral is ... (1/T) * -cos(wt)/w evaluated from 180 to 45 or pi to pi/4. From my understanding the relationships are as follows ... T =1/f, w=2*pi*f, therefore w=2*pi/T this should cancel out the T and leave the result as ...

I'm rusty but it may contain some trick in regards to modications to both period and angular frequency. The period is certainly pi, but maybe angular frequency is now simply 1 Obviously the w in the sinusoid has no bearing to the evaluation of the cosine. .. Any smary people who can put this...

I think it should be 1/t * -cos(wt)/(2pi/t) which is half of the answer they provide.