Four-phase alternating current machine and motor
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A print-ready JPG or TIFF in sRGB with the color profile embedded, made from the museum master and never enlarged.
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Four-phase alternating current machine and motor, Emil Hochdanz Co. (1913). Via artnap.com
Four-phase alternating current machine and motor, Emil Hochdanz Co. (1913). Via artnap.comFour-phase alternating current machine and motor, Emil Hochdanz Co. (1913). Via <a href="https://artnap.com/artwork/pdx-1238828">artnap.com</a><figure><a href="https://artnap.com/artwork/pdx-1238828"><img src="https://img.artnap.com/artworks/pdx/pdx-1238828/web.jpg" alt="Four-phase alternating current machine and motor, Emil Hochdanz Co. (1913)" width="1600" height="1255" style="max-width:100%;height:auto" loading="lazy"></a><figcaption>Four-phase alternating current machine and motor, Emil Hochdanz Co. (1913). Via <a href="https://artnap.com/artwork/pdx-1238828">artnap.com</a></figcaption></figure>
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About this work
This printed technical plate shows a two-phase alternating current dynamo in cross section, with coil pairs, slip rings and brushes labeled by number and letter. Five smaller circular diagrams (A through E) illustrate how a rotating magnetic field forms in a polyphase motor, and a sine-wave graph at lower left compares two currents offset by 90 degrees.
