A configuration of clear plastic gears demonstrates phasor addition of a negative set in variable phase to a fixed positive sequence. Overlays are suggested for presenting symmetrical component theory without mathematics, whilst indicating applications. The description indicates the method of construction.
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References
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ThomasD. H.: ‘A Visual Aid for the Two-Wattmeter Method’. Int. J. Elect. Eng. Educ., 11, p. 229–232.
2.
DoverA. T.: Theory and Practice of Alternating Currents. (3rd edn.) Pitman and Son, p. 521.
