File:Synchronous machine curves.png

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DescriptionSynchronous machine curves.png	English: A diagram with multiple synchronous machine curves: open-circuit curve, short-circut curve, zero power factor. Curves were taken by NASA using a modified brushless, stationary-coil Lundell alternator.
Date	September 1969
Source	NASA TN D-5405 https://ntrs.nasa.gov/api/citations/19690026159/downloads/19690026159.pdf
Author	David S. Repas, Richard A. Edkin

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	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:38, 7 July 2023		637 × 444 (54 KB)	Викидим	Uploaded a work by David S. Repas, Richard A. Edkin from NASA TN D-5405 https://ntrs.nasa.gov/api/citations/19690026159/downloads/19690026159.pdf with UploadWizard

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File:Synchronous machine curves.png

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