TNPE

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About TNPE

  • Rank
    Project Engineer

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  • Engineering Field
    Electrical (Power)
  • License
    PE
  • Calculator
    Casio
  • Discipline
    Electrical

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  1. You may be right. I'm just so used to processes like this taking much longer than they should, at least superficially. I will say the TN State Board has been pleasant to work with and they do expedite better in relation to how other Boards appear to operate.
  2. Units would be wrong; however, with that said, the only time P=S=VI is at unity power factor. Much like Q=S=VI at 90 degrees, which is a purely reactive load. Though these quantities are the same at these given conditions, the units are not the same. 100W is not the same as 100VA, just as 100VARs is not the same as 100VA. From a quantifiable standpoint, they are the same, but from a specific, theoretical view, they aren't. I had a much more detailed response written earlier today, but my computer had other ideas and wet the bed. If you have any other questions, let 'em rip! That's what this board is for, other than the occasional troll-fest, cause I had to crawl my ass under the bridge a time or four to troll during this grueling wait!! Best of luck going forward and kick this test's ass in the spring!
  3. I would guess ~30 days
  4. I, too, work for a three-lettered power company, but not the one you do.
  5. P=VIcos(theta) (real power...i.e. usable power delivered to a load) *Note: theta is the power factor angle, also inherently known as the angle between voltage and current, in which the current leads or lags the voltage, or even the impedance angle S=VI (apparent power) S=P+jQ (complex power...also, S=VI*) Q=VIsin(theta) (reactive power) If you understand these equations and the relationships between them all, coupled with a thorough understanding of how these are applied and used for 3-phase and single phase applications, you should be good. Not to sound blunt, but this should be the gimme stuff on the exam, if you're asked about it at all.
  6. No, Mrs. Phillips in Nashville said they were mailed Monday. USPS must be dragging their blankey, and their feet, cause it's Christmas... My brother mailed a package from Jackson last Friday and I didn't receive it until yesterday. Carrier pigeons or the pony express would be more expeditious. Guaranteed!!
  7. I gathered that tone from most posting here. I thought it was a very fair test, tricky, but fair. Nothing like I expected, at least with how the questions were framed. With that said, it tested your ability to apply concepts ad nauseam.
  8. I would guess @TWJ PE is saying he works in power system reliability (which encompasses performance, coordination, relay settings, loading and so forth....reliability is a mixed bag), not reliability in the sense of failure rates etc. that you would encounter in manufacturing processes. Quite rewarding and even impressive that you passed the Power PE as a Structural. Congrats!
  9. Symmetrical only relates to 3-phase faults (bolted or to ground - which really isn't a fault to ground). No other fault will be symmetrical. Period. Hence, Fortescue developed the technique of symmetrical components to accurately analyze asymmetrical faults (LG, 2LG, LL). As for your other questions pertaining to the DC component, I don't have much I can provide. I would say most breakers/controllers don't need any info on the DC comp., nor do they measure for it. Depending on the relay and application, MPU, instantaneous trip and other parameters are physically set by completing a coordination analysis to develop TCC curves (of course, depending on the relay, but could be using differentials, distance, etc.).
  10. Congrats @REsonance503! Good to know we weren't alone.
  11. Chemical Engineer? All the alchemy is making my head spin... No, wait, that's the booze!!!
  12. To be honest, I don't know that what I learned in college would have been of much help for the "theory" heavy topics. I picked up on the "theory" by picking up books, articles, anything I could get my hands on, and reading until I was blue in the face!!
  13. Sorry to hear, Mike. You'll get it next time. Enjoy the Christmas season and get after it in January. Good luck!
  14. Classic!! Y'all remember when B-B-Bobby Boucher showed up at halftime and the Mud Dogs won the Bourbon Bowl, do ya?
  15. l I posted this earlier, unfortunately, it was in the wrong thread but intended for you. However, here it is: The best thing to acquire for the eng. econ. problems is a complete table of interest rates and terms (years). At this point, it becomes a straight plug and chug if you know what to solve for. That's what I did for this administration and it helped tremendously. These should be the gimme problems and the tables help in knocking the problems out fast and moving on. Time is of the essence. The best advice I can give for this test, material/classes etc. aside, learn who you are and how you perform under pressure. Once you establish this, then organize and prep in such a way that you bolster your strengths and mitigate your weaknesses. All of us are weak somewhere. Period. Sure, you need to be prepared for all of the test, but so what if you aren't -great- in one topic area that covers 6-8 problems.... 6-8 problems will not make or break this test if you are strong in most other areas. As for materials, I borrowed the GA Tech binder from a friend/ex-colleague (it is great for studying, not a great tool on test day, but still useful...I took it and used it a few times)...Graffeo is a must (has some errors, but it really hammers home the parts you need to have down pat to be successful on this exam).... any college texts that you are comfortable with using (comfort level with your resources is much more advantageous than having a book that has the answers but you don't know where to find them)...NEC/NESC are a must (learn where to look in this book...past exams and practice material will help with this...they are large volumes, but if you know where to look and have an idea of what types of problems to expect (along with exceptions), you'll be fine here). Good luck. Get after it and knock it out in April. You got this!