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AC Power Discussion D9.3 Chapter 5
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Steady-State Power Instantaneous Power Average Power Effective or RMS Values Power Factor Complex Power Residential AC Power Circuits
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Instantaneous Power Note twice the frequency
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Average Power Purely resistive circuit Purely reactive circuit
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Effective or RMS Values We define the effective or rms value of a periodic current (voltage) source to be the dc current (voltage) that delivers the same average power to a resistor. root-mean-square
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Effective or RMS Values Using and
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Recall Average Power Power Factor Power factor Power factor angle Note that Thus, an industrial load that consumes P watts with a high PF from a V rms volt line will have lower line losses.
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Complex Power Real, average power Imaginary, quadrature power
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Residential Power Systems Read Section 5-8, pages 216 - 219
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