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I have a motor feeder that is 2/0Cu, 3 conductor (bundled), UL MV-90, non-shielded in Ethylene Propylene Rubber (EPR) insulation. I need to size the conduit for this feeder (Rigid metal conduit). I know that NEC Ch9 Table 1 gives me my allowable % conduit fill, and that Table 4 gives a cross...

I had to quit for the day. I have found my weakness and it is the NEC. I don't want to look at that code any more. Feel free to express your woes with the CODE.

Problem Statement: The design for a transformer secondary calls for #14 gauge copper wire with a 2.7ohm/1000ft resistance according to the NEC. The max current drawn by the electronic bias power drawer is 3amps, powered from the secondary of the transformer. The allowable voltage drop is 7.6v...

I have some old NEC practice problems. Problem: What is the general lighting load for a 4000 square foot bank? Answer: From table 220.12 the general lighting load by occupancy of a bank is (3.5 va/sqft)*(4000 sqft)*(1.25) = 17,500va. My question: In NEC article 210.19(A)(1) it states to...

I need help understanding this differential relay problem. Problem Statement: A three phase, delta-wye-connected, 30MVA, 33/11kv transformer is protected by a differential relay. Calculate the relay current setting for faults drawing up to 200 percent of the rated current. The CT ratio on the...

I will preface this statement with the fact that the TI89 was my go to calculator in college. It served me well. I naturally gravitated towards the TI-36X when I began my FE preparation, and it did its job while I passed on my first try. I ran into much frustration, however, with the TI-36X in...

I am taking the PE Electrical Power Exam in April. Does anyone know of any good practice exams to use. I already have the following: 1. NCEES Practice Exam 2. Camera Practice exam. Please let me know. Thanks.

What engineering economics concepts should I focus on for the PE power exam? I have heard that there are enough econ questions on the exam that I should definitely review it.