^ Know this, love this. This will allow you to solve quite a few problems on the test quickly.
Another resource I used on the test regarding:
Paralleling Transformers...
To those who didn't pass this time around, keep at it, you'll pass in April. Make sure to look up old posts or ask your own question in regards to problems from the practice tests on this site. That is a powerful resource that helped me a lot.
Cooper Power Systems: Electrical Distribution-System Protection
This gives a good overview of coordination of overcurrent devices (relays, recloser, fuses) as well as overvoltage protection (arresters, BIL, insulators).
Exam taken: Electrical Power
Educational background: BSEE, Oregon State University Dec., 2008
How long did you study? 1 month (somewhere between 50-60 hours). Because of the many hats I wear at my job, I didn't need to study as much as someone who specialized in one aspect of Power...
I passed the Power exam in October, but the NEC questions in the afternoon section threw me off and had me worried. In fact I was only able to go back over the first fifteen problems after finishing the test in the afternoon before time expired because I had spent so much time looking up...