Lecture Notes14_AcPower

Amplitude is v 5 v 1 squared voltage v 2 t v 2 cos2

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Unformatted text preview: n • Ideal Transformer • Transformer Applications • Summary 5 20 0 2 14: Power in AC Circuits 10 -5 0 2 4 6 t (ms) 8 10 0 0 2 4 6 8 10 t (ms) Cosine Wave: v (t) = 5 cos ωt. Amplitude is V = 5 V. 1 Squared Voltage: v 2 (t) = V 2 cos2 ωt = V 2 1 + 2 cos 2ωt 2 E1.1 Analysis of Circuits (2013-3867) AC Power: 14 – 3 / 11 Cosine Wave RMS • Average Power • Cosine Wave RMS • Power Factor • Complex Power • Power in R, L, C • Tellegen’s Theorem • Power Factor Correction • Ideal Transformer • Transformer Applications • Summary 5 20 0 2 14: Power in AC Circuits 10 -5 0 2 4 6 8 10 0 0 2 t (ms) 4 6 8 10 t (ms) Cosine Wave: v (t) = 5 cos ωt. Amplitude is V = 5 V. 1 Squared Voltage: v 2 (t) = V 2 cos2 ωt = V 2 1 + 2 cos 2ωt 2 2 Mean Square Voltage: v 2 = V2 since cos 2ωt averages to zero. E1.1 Analysis of Circuits (2013-3867) AC Power: 14 – 3 / 11 Cosine Wave RMS 5 2 • Average Power • Cosine Wave RMS • Power Factor • Complex Power • Power in R, L, C • Tellegen’s Theorem • Power Factor Correction • Ideal Transformer • Transformer Applications • Summary 20 0 10 2 14: Power in AC Circuits -5 0 2 4 6 8 10 0 0 2 t (ms) 4 6 8 10 t (ms) Cosine Wave: v (t) = 5 cos ωt. Amplitude is V = 5 V. 1 Squared Voltage: v 2 (t) = V 2 cos2 ωt = V 2 1 + 2 cos 2ωt 2 2 Mean Square Voltage: v 2 = V2 since cos 2ωt averages to zero. E1.1 Analysis of Circuits (2013-3867) AC Power: 14 – 3 / 11 Cosine Wave RMS 5 2 • Average Power • Cosine Wave RMS • Power Factor • Complex Power • Power in R, L, C • Tellegen’s Theorem • Power Factor Correction • Ideal Transformer • Transformer Applications • Summary 20 0 10 2 14: Power in AC Circuits -5 0 2 4 6 8 10 0 0 2 t (ms) 4 6 8 10 t (ms) Cosine Wave: v (t) = 5 cos ωt. Amplitude is V = 5 V. 1 Squared Voltage: v 2 (t) = V 2 cos2 ωt = V 2 1 + 2 cos 2ωt 2 2 Mean Square Voltage: v 2 = V2 since cos 2ωt averages to zero. RMS Voltage: Vrms = E1.1 Analysis of Circuits (2013-3867) v2 = 1 √V 2 = 3.54 V AC Power: 14 – 3 / 11 Cosine Wave RMS 5 2 • Average Power • Cosine Wave RMS • Power Factor ...
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This document was uploaded on 02/20/2014 for the course EE 101 at WVU.

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