Image:Gramme Ring - 6 coil - 3 pole.svg

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Gramme_Ring_-_6_coil_-_3_pole.svg‎ (SVG file, nominally 720 × 473 pixels, file size: 61 KB)

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Description

Drawing based on w:Image:Gramme Ring - 6 coil - 3 pole.png. Description from there:

From illustration caption:

Gramme ring armature with six coils. The sine curves 1, 2, and 3, represent the conditions due to coils AA', BB', and CC', respectively and 4, the resultant pulsations.

Public Domain source:

   * Hawkins Electrical Guide, Volume 1
   * Chapter 14: The Dynamo: Current Commutation
   * Page 178, Figure 186
   * Copyright 1917 by Theo. Audel & Co.
   * Printed in the United States

For a list of all these illustrations used in Wikipedia please see the article w:Hawkins Electrical Guide.

Scanned by Dale Mahalko, Gilman, WI, USA
Source

self-made
Date

2008-04-01
Author

Borb
Permission
(Reusing this image)
I, Borb, the author of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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Other versions Original: w:Image:Gramme Ring - 6 coil - 3 pole.png

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File history

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Date/TimeDimensionsUserComment
current14:46, 1 April 2008720×473 (61 KB)Borb ({{Information |Description=Drawing based on w:Image:Gramme Ring - 6 coil - 3 pole.png. Description from there: From illustration caption: Gramme ring armature with six coils. The sine curves 1, 2, and 3, represent the conditions due to coils AA', BB)
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