File:Electric traction and transmission engineering (1911) (14574577688).jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(1,632 × 820 pixels, file size: 203 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
The categories of this image need checking. You can do so here.
  • Please remove redundant categories and try to put this image in the most specific category/categories.
  • You can remove this template by clicking here (or on the first line).



Description
English:

Identifier: electrictraction00shel (find matches)
Title: Electric traction and transmission engineering
Year: 1911 (1910s)
Authors: Sheldon, Samuel, 1862- Hausmann, Erich, 1886- joint author
Subjects: Electric railroads
Publisher: New York, Van Nostrand
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
0.5 I.O 1.5 2.0 RATE OF BRAKING IN MILES PER HOUR PER SECOND Fig. 55- connection with Fig. 49. The effect on schedule speed andon energy consumption of changes in the rates of accelera-tion and braking is not as conspicuous on long runs ason short ones. ENERGY CONSUMPTION. 129 The schedule speed of railway cars depends to a greatextent upon the duration of the stops for the purpose oftaking on or discharging passengers or freight. Obviously,the longer the period of standstill the lower will be themaximum schedule speed attainable by a given equipment. An increase in the time of coasting results in a reductionof the power consumption. The results of a series of recent 50 40 1-30 £20 10 6-CAR TRAIN.-4 MOTOR CARS.-154 TONS. <WG. BRAKING RATE1.75 MILES PER HR. PER SEC STATION STOP-14 SECONDS.
Text Appearing After Image:
2 3 4 5 6 TIME IN SERIES POSITION, SECON DS. Fig. 56. tests on a 6-car train of the Manhattan Elevated Systemmade by H. S. Putnam are embodied in the curves ofFigs. 54, 55 and 56, which show for a given schedulespeed the influence on the percentage of coasting and per-centage saving in electrical energy, of acceleration andbraking rates, and of running time in series position. The motor performance curves and the speed and powercurves derived from them refer to a definite and constanttrolley voltage. In practice this voltage has not the samevalue at different points on the roadway, owing to the drop 130 TRACTION AND TRANSMISSION. of potential along the trolleys, on third rail, and on feedersfrom the substations. The minimum voltage at the carshould not be less than 350 volts for the usual 600-voltequipment. Consequently in selecting the car equipmentfor a proposed railway service due attention must be givento the voltage regulation on various parts of the road. Speed curves of cars op

Note About Images

Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/14574577688/

Author Internet Archive Book Images
Permission
(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Flickr tags
InfoField
Flickr posted date
InfoField
27 July 2014

Licensing

[edit]
This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.

Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14574577688. It was reviewed on 14 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

14 September 2015

File history

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

Date/TimeThumbnailDimensionsUserComment
current11:59, 14 September 2015Thumbnail for version as of 11:59, 14 September 20151,632 × 820 (203 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Identifier''': electrictraction00shel ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Felectrictractio...

You cannot overwrite this file.

There are no pages that use this file.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Electric_traction_and_transmission_engineering_(1911)_(14574577688).jpg&oldid=691194159"