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  1. C

    Distance Relay Problem CramForThePE

    I will post it at my website in a few days.
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    Cram for PE Exam Vol 2 Q 30 - Capacitor-Start Motor

    See image below of capacitor start motor with main, aux and capacitor. I am trying to get them 89° apart. My main is sitting at 31°. In order to put them out by 89° the aux winding w/cap has to be -58°. To move the aux (which is 10+j2) with the capacitor it is going to be minus. Remember...
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    Cram Practice Test 2 #61

    Yes I have fixed this typo in a newer version. The problem should state the voltage is 0.9 (Not 0.95). But to the other question: If a generator has its terminals connected directly to the motor, why would you think they are in series? There is nothing that can be downstream of the motor.
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    Cram for Exam Vol 3 Q 19 - Reducing transmission line inductive reactance

    Yes you are correct about no correlation. That is what I will say in the answer key rather than try to confuse about my previous statement.
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    Cram for Exam Vol 3 Q 19 - Reducing transmission line inductive reactance

    The correct answer is B. I meant to say that a high voltage line as compared to a low voltage line will have a higher inductance due to the spacing requirements for a high voltage line compared to a lower voltage line. I do not mean to say that raising the voltage raises the inductive...
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    Distance Relay Problem CramForThePE

    If you look at what dude99 did, you can see Gen A supplies 10MVA no matter if Gen B is connected. Obviously, at the point of fault there is more MVA_SC but Gen A SC remains. Iturner is very close to the correct answer. I would just ask that he prove it a little more. @Dude99  Think about this...
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    Distance Relay Problem CramForThePE

    What the relay "sees" due to component Zab will never change. Shown above is what it would look like if the breaker is open. To state the question differently:   "After Zab is passed, does the slope change and if so how and why?"
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    Sawtooth with offset Waveform Problem

    Observation for you: Just by understanding Vrms you know the answer can not be A or D. It has to be somewhere between 0.75 and 1.2. So right away you got a 50/50 shot of getting it right. If you get stuck on a problem on the actual test try to eliminate answers.
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    Distance Relay Problem CramForThePE

    Why do you assume the fault current supplied from generator A would be different with generator B connected?
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    Distance Relay Problem CramForThePE

    This is volume IV. I am in the process of developing it now. It wont be done for another few months.
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    Cram for PE actual book Sym Comp 3.1.2 problem 1. Help please

    21° is a typo. It should be -158°. This was a misuse with my calculator. As you know, when the resultant lies in the third quadrant your calculator can trick you if you have it set wrong. If i break them all down you see the following: 44.99+53.62j-80-50-86.6j=-85-32.9j you can see from...
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    Distance Relay Problem CramForThePE

    You are on the right track.
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    Cram for the PE Sample Test 1 - Problem #13

    A previous individual had the same question a while back. I answered it here: http://cramforthepe.com/index.php/2019/07/27/batteries/
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    April/October 2020 Power PE Exam Prep

    60/80 is very good. You can send me an email via http://cramforthepe.com/index.php/contact/://cramforthepe.com/index.php/contact/ I would be happy to answer all your questions. I have two other sample exams that have very different questions from exam 1.  
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    April/October 2020 Power PE Exam Prep

    Thank you MetoEE for your kind words about the Cram book. My other two sample test have completely original questions from the first. No repeats! If you could be so kind to leave a review on Amazon so other engineers get the proper feedback. I offer money back for those that leave reviews. See...
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    Cram for the PE Sample Test 1 - Problem #13

    I posted my answer to this question here: http://cramforthepe.com/index.php/2020/02/10/question-about-loss-of-excitation-protection/ If you have any other questions feel free to contact me.
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    Distance Relay Problem CramForThePE

    A distance relay is located at Bus A that looks outwards toward Bus C as shown in the diagram below. Zone 1 of the distance relay covers transmission line AB and Zone 2 covers just beyond Bus C. A fault occurs on Bus C. When Generator B is online and breaker 52 is closed, which of the...
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    Cram for The PE Sample Test IV

    A full wave rectified circuit is given below. If diode D2 is shorted out, what is the average voltage across RL? A) 0 (i.e. short circuit) B) 54 V C) 108 V D) 216 V http://cramforthepe.com/index.php/2020/02/08/power-electronic-problem-2/
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