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Fundamental confusion about THREE-PHASE electric power setup
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[QUOTE="Klystron, post: 6035883, member: 614295"] Interesting diagram. Consider plotting the output of phase 1 over time assuming the 3-phase generator running at steady RPM. Then plot phase-2 output at the same t0 under phase-1; then phase-3. Drawing a pencil and graph-paper plot with each phase vertically stacked illustrates the relationships among the 3-phase output over time. Actual values are not required to visualize the phase-shifts among the 3 outputs. Superimpose the plots -- admittedly easier using plotting software -- to more thoroughly understand how each phase varies as the rotating magnet impinges on each coil. Plotting a vertical line normal to the x-axis through each phase illustrates 'what the load sees' from the combined outputs. A beginning engineer might plot output Voltage x time, then Current x time for each phase and analyze and compare the sine wave graphs to further understand Impedance. From here, plotting induced EMF over time helps understand the power generated by the rotating flux. Consider efficiency. Why use 3-phases? Why complicate the generator by adding coils to the stator? How does using the Y configuration differ from Delta config? This USGS hydro-electric article illustrates how energy of falling water converts to EMF. [URL]https://water.usgs.gov/edu/hyhowworks.html[/URL] [I haven't taught recently. Please edit my errors or clarify the concepts. --Norm] [/QUOTE]
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Fundamental confusion about THREE-PHASE electric power setup
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