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  1. Panchito

    How to pass PE Electrical and Electronics

    I passed the Electrical and Electronics PE exam few years ago. For all the transmission line topics (Smith chart, impedance matching, reflection coefficient, SWR, etc, etc) I strongly recommend watching the ECE3300 videos, lectures 12 and 13, posted in Youtube. You will become an expert in...
  2. Panchito

    Calling yourself an engineer without a PE

    I agree the term engineer is loosely used in some companies. I have seen job titles such as "quote engineer", "proposal engineer", "bid engineer", "customer engineer", etc
  3. Panchito

    Calling yourself an engineer without a PE

    This case was highlighted in the last edition of the IEEE publication The Institute: http://theinstitute.ieee.org/ieee-roundup/blogs/blog/us-judge-rules-mats-jrlstrms-first-amendment-rights-were-infringed
  4. Panchito

    Washington Stamp Name

    Washington state? If so, your wall certificate will have the name you provided in the PE Online Application form (http://www.dol.wa.gov/forms/651013.pdf)
  5. Panchito

    Is the citizenship required for PE

    When I took the PE exam (2014, WA state) I was a green card holder. A couple of coworkers with work visas (H1) took the PE last October.
  6. Panchito

    PE Certificate

    Yes, there are quite a few, just google Laser Engraved Diplomas or Laser Engraved Certificates. 
  7. Panchito

    PE Certificate

    The price information is in the web page. Prices may vary depending on the style you choose. For the one shown in the picture (floating acrylic) I paid about $160. A co-worker got the engraved wood style and paid about $80 for it.
  8. Panchito

    PE Certificate

    I used the services of this company to do the laser-engraving: http://www.laserengravedmemories.com/en/custom-diplomas/ The specific design I used (the one shown in the picture) is called Floating Acrylic Diploma Plaques, but they have other cool-looking designs that you can find on their web...
  9. Panchito

    PE Certificate

    I laser-engraved my certificate. Looks great. BTW, I took the exam in Oct 2014 and received my certificate in March 2015 (WA state).
  10. Panchito

    When Are License Numbers Available?

    In WA state you need to wait about 2 weeks after the results are released to be able to lookup your name and get your license number.
  11. Panchito

    WA State?!

    Congratulations @thejulie@GoCougs2002  and to all the new PE's in the Evergreen state !!!! Greetings from the Palouse.
  12. Panchito

    WA Results

    After the results are released, the WA department of licensing takes about 2 weeks to update the dol.wa.gov web page with the new licenses. I took the exam in October 2014 and received the results email notification from NCEES on December 15th at 1:14pm (first day). My license was updated in...
  13. Panchito

    Example Problem

    The problem states that it is an ELECTROMECHANICAL differential relay.  As you know, delta-wye transformers have a 30 deg phase shift between primary and secondary. When doing differential protection, we need to compensate for this phase shift (otherwise, currents going into the differential...
  14. Panchito

    NCEES Power Sample Exam #108

    Since the problem does not give you any 0 degree reference angle, you can pick any quantity as your 0 degree reference, for example, Van. Then, your voltages would be: Van = 7.62 @ 0 deg Vbn = 7.62 @ -120 deg or you could have picked Vbn as our reference angle. In that case, you would have...
  15. Panchito

    Bode Plot Analysis

    1/s is the impedance of the 1F capacitor. So, you are doing a bode plot using the impedance of the capacitor as a transfer function. That makes sense only if the output of your system is a voltage, and the input is a current (because voltage over current is impedance). In that case your plot...
  16. Panchito

    Spin Up Exam Week 1 QFTW Question Solution

    If you are working with magnitudes, you don't have to worry about the 30 deg phase shift when you convert between L-L and L-N. Just multiply or divide by sqrt(3). But, if you are working with phasors (magnitude and angle), you must take into account the 30 deg phase shift. There is a natural 30...
  17. Panchito

    Spin Up Exam Week 1 QFTW Question Solution

    If the problem asks to find the voltage or current in PHASOR form (magnitude and angle), then you need a reference. Phasors are defined relative to a reference phasor (zero phase phasor). For example, if the voltage at bus 1 leads the voltage at bus 2 by 15 deg, and the voltage at bus 2 leads...
  18. Panchito

    Spin Up Exam Week 1 QFTW Question Solution

    If you see the drawing you will notice the following:  1) The 25KVA load is connected line-to-neutral (not line-to-line). Therefore, you don't have to divide 25KVA by 3. 2) Van is the zero angle reference. Therefore, Van = 277 angle (0). (You used angle -30 in your calculation)
  19. Panchito

    Change the base

    The derivation is not too complicated. First convert your Z_old from P.U. to Ohms, by multiplying by the Z_base_old Z_ohm = Z_old x Z_base_old And now convert Z_ohm (in Ohms) to Z_new (in P.U) by dividing over Z_base_new: Z_new = Z_old x Z_base_old / Z.base_new We also know that 1)...
  20. Panchito

    Any TRICK problems on exam?

    Phatso, you don't need to make any assumption to determine that the peak voltage is 679V. If you are given the INSTANTANEOUS voltage as a function of time, you can easily determine the peak value of the voltage without having to assume anything. If you plot the voltage expression given above...
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