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Summary
Paraphrased article description:
A self-excited shunt-wound DC generator is shown on the left, and a magneto DC generator with permanent field magnets is shown on the right. The shunt-wound generator output varies with the current draw, while the magneto output is steady regardless of load variations.
From illustration caption:
Circuit diagrams to illustrate the difference between a dynamo and a magneto. The former has its field magnets F F magnetized by means of a small current flowing around a shunt circuit. In a magneto the field magnets are permanently magnetized. The strength of the magnetic field of a magneto is constant while that of a dynamo varies with the ouput.
Public Domain source:
- Hawkins Electrical Guide, Volume 1
- Chapter 15: Classes of Dynamo
- Page 183, Figure 188, 189
- 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)
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:39, 12 January 2008 | | 1,249 × 953 (94 KB) | DMahalko (talk | contribs) | == Summary == 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. Au |
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