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I haven't posted here in a while, but hello! I am now under taking my masters and have run into a conundrum. We are working on transmission line modeling, and I have the following homework problem: 2) The per-phase impedance of a short three-phase transmission line is 0.5∠53.15◦ Ω. The...

Did you receive anything in the mail from NCEES or the PCS about your results? I expected a hard copy of the results. NCEES says i passed, so I'm good with that...just want to make double sure! I also never received an email from NCEES telling me to check my results. I just knew that people on...

same i spent way too much money. time to try and sell some materials.

Practice problems!! By far the best are the NCEES questions. The key to passing the exam is a complete understanding of those exmaples, as they do mirror what you will see on the test itself. I found the camera problems to be too dissimilar to the NCEES format to be useful. There is a company...

PASSED MA Results are in. Congrats everyone and thanks for all of the help. Holy crap that was terrifying...

Packing as we speak. Thanks everyone, lets hope it pays off, otherwise see you in a few months asking the same silly questions.

I emailed the group responsible for the MA exam, and the NCEES and any other practice exams are allowed into the exam as long as they are bound. Three ring biners count as being bound, and PEN notes are acceptable (I have red notes everywhere). Just an FYI.

I posted this in another thread, but thought i would share in a new thread so everyone could see. A lot of universities have free open courses online. MIT has a boat load of them, in all manner of subjects, including power systems. Check out this site. I downloaded and am using some of the...

This will be useful for work as well. Thanks.

I started here first, http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-061-introduction-to-electric-power-systems-spring-2011/index.htm MIT has a great open course catalog. This is intro to power systems, there is also power electronics and electric machines in there as...

i think. i now have this down. it's all making sense. i found some good power systems lecture slides that helped a ton. what was posted here covers it but let me know if people want some screen shots from what i found

I recently printed parts of this book out. Filled with useful information. Wish I had it sooner.

I think the formula in step 1 is valid. What about, Q=Vc * Ic (basic Power equation, usable for every type of power) and Ic=Vc/Xc So, Q=Vc^2/Xc Using the root(3) would depend on if you are using per phase values or line values.

I'm taking a day and a half off before the exam. Final collection of notes and relaxation.

I have seen motor PF correction connected delta. I worked for a utility for a year and swore I saw it there but cannot remember...

I agree. They helped, just had to be careful with some of them and always keep a questioning attitude, for any practice test.

Since the comment by Insaf I've been doing some research myself and I think I agree with him. It makes sense.

This was great. I'm glad I saw this. I went through my notes and noticed I hadnt accounted for this.

If you go to the EC&M website, there are some good NEC articles by Mike Holt on there, one of them is on such a subject. Also, the NEC articles on there by him are great, I've printed a number of them for work and for studying. EC&M is also just a plain old good website for information.

Does it mention anything about pf? At unity, S=P and would therefore use the same forumla...then again i dont think you typically operate motors at non unity. I believe i read that somewhere.