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  1. P

    For Sale PE Electrical Power Books and Exam materials for SALE

    Please contact me if interested. Willing to sell items individually or as a bundle.
  2. P

    V LG vs V NG

    If either of these values are zero, what does that mean?
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    Average and rms value in a diode or thyristor/scr - Please help!

    When do you use (2*Vpeak)/3.14 and when do you use just (Vpeak/3.14) This is just so confusing esp. when going thru' these problems in CI tests....I am very nervous about the power electronics type problems in the exam :wacko: does anyone have set of formulas on this? (average, rms values...
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    Please help! Confusion with 30 degree phase angle shift between delta wye in a transformer

    Hi All, This phase shift seems to be killing me. Based on Wildi, if wye connected, V L-N = (V L-L/sqrt 3) at angle -30 degree if delta connected I phase = (I line/sqrt 3) at angle -30 degree But in the attached problems, eg. E-25, at the end, Ia seems to be calculated at -30 degree. I think...
  5. P

    Please help! Confusion with 30 degree phase angle shift between delta wye in a transformer

    Hi All, This phase shift seems to be killing me. Based on Wildi, if wye connected, V L-N = (V L-L/sqrt 3) at angle -30 degree if delta connected I phase = (I line/sqrt 3) at angle -30 degree But in the attached problems, eg. E-25, at the end, Ia seems to be calculated at -30 degree. I think...
  6. P

    DC machine losses

    Why does one of the questions in test 4 in CI say DC machines do not have hysteresis losses? I thought the correct answer would be stray losses?
  7. P

    Good reference for diodes, PLCs, Batteries and VFDs?

    Please suggest good books that covers these topics.
  8. P

    NEC Code Drill Book

    Anyone selling this?
  9. P

    Anyone selling hard copy nec 2011?

    Anyone selling hard copy nec 2011? Please let me know.
  10. P

    Power PE Scores?

    I failed with 51/80
  11. P

    PE Power Study Group for April 2015 through googlegroups?

    Anyone interested??
  12. P

    Help with a CT problem found in spin up

    Is my solution correct? Please see attached. Spin up shows 1 ohm burden resistor in the wrong place... Thanks!
  13. P

    PE Power Reference Book Question

    Hi All, Are these 2 books lot different? Which one do you recommend between the two? I am trying to find out if I need both these books or just one would be sufficient with my preparation for the PE power exam and to also use as a reference during the exam. Any thoughts/comments would be...
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    Exam day info?

    Hi All, Anyone who took the PE recently,please help. did you find a locker to store your cell phone,car keys, wallet/purse etc.? Any useful tips about actual exam day on site info would be greatly appreciated. I will be taking the exam in FAirfax, VA. Thanks in advance!!!
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