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I am doing some NEC problems and have a question on a portion. When calculation general lighting loads per Article 220 do you add 125% to the calculated VA's??? The solutions are adding 125% to the loads and stating "continuous duty". The problems are from a practice test using 2005 version...

I don't understand this question. Assume an effective interest rate of 15% per year compounded annually. An investment requires $1500 at the end of each year for the next 5 years plus a final investment of $3000 in 5 years. What is the equivalent lump sum investment now? A. $6100 B. $6500...

A synchronous generator is 3 phase wye connected and rated 1131 kva, 2.4 kv, 0.9 lagging. the output current from the generator at rated full load is most nearly: Why do you use the formula Sbase = Sq root 3 Vbase Ibase I just used the S=VI formula and got it wrong. Tad confused

Can anyone give me the solution using the MVA method for this problem?!?!? Quick description if you don't have the book: A generating unit is shown in the figure. The 3 phase, short-circuit MVA contribution of G1 for a 230 kV bus is most nearly: Answer is 2290 figure layed out as...

Can anyone walk me through this question? 3phase induction motor and a 3 phase synchronous motor are connected to a 480V system. the synchronous motor, operating at 8kVA, 480V, 60 Hz is overexcited producing a leading pf of 0.7. the induction motor draws current of 14.43 A and has a lagging...