Image:Separately Excited.png

From Wikipedia, the free encyclopedia

Image
File history
File links

Size of this preview: 774 × 600 pixels
Full resolution‎ (1,054 × 817 pixels, file size: 73 KB, MIME type: image/png)

[edit] Summary

Paraphrased article description:

A separately excited DC generator with bipolar field magnets. Separately excited generators like this are commonly used for large-scale power transmission plants. The smaller generator can be either a magneto with permanent field magnets or another self-excited generator.

From illustration caption:

Separately excited dynamo. Current for field excitation is supplied by a second and smaller generator.

Public Domain source:

Hawkins Electrical Guide, Volume 1
Chapter 15: Classes of Dynamo
Page 196, Figure 198
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 Hawkins Electrical Guide.

Scanned by Dale Mahalko, Gilman, WI, USA

DMahalko (talk) 20:20, 12 January 2008 (UTC)

[edit] Licensing

This image is in the public domain in the United States. In most cases, this means that it was first published prior to January 1, 1923 (see the template documentation for more cases). Other jurisdictions may have other rules, and this image might not be in the public domain outside the United States. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	20:19, 12 January 2008	1,054×817 (73 KB)	DMahalko (Talk \| contribs)	(Separate excitation of an electric generator. DC generator with commutation is shown, but the principle also applies to AC alternators. '''Public Domain''' source: Hawkins Electrical Guide, Volume 1, Page 196. Copyright 1917 by Theo. Audel & Co. Printed )