File:View west of load dispatch model board; section covers substations from edgerly (right) to thorndale and west yard (left). Instruments at bottom of center board section HAER PA,51-PHILA,712B-7.tif

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Summary

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Photographer
Stewart, Robert, creator
Title
View west of load dispatch model board; section covers substations from edgerly (right) to thorndale and west yard (left). Instruments at bottom of center board section formerly monitored energy usage and were replaced by a computerized monitoring system. - Thirtieth Street Station, Load Dispatch Center, Thirtieth and Market Streets, Railroad Station, Amtrak (formerly Pennsylvania Railroad Station), Philadelphia, Philadelphia County, PA
Depicted place Pennsylvania; Philadelphia County; Philadelphia
Date 1997
date QS:P571,+1997-00-00T00:00:00Z/9
Dimensions 4 x 5 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER PA,51-PHILA,712B-7
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: It was designed to visually and aurally indicate the operating status of the railroad's power system. This particular load dispatch center monitors and supervises electrical loads and power supply to the railroad's power distribution system from New York to Washington, D.C. The load dispatchers who work at this site oversee the electrical load on sections of the system. They are responsible for maintaining continually and availability of power for operation of trains on the system...
  • Survey number: HAER PA-404-B
Source https://www.loc.gov/pictures/item/pa3881.photos.362736p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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current07:16, 1 August 2014Thumbnail for version as of 07:16, 1 August 20145,000 × 3,934 (18.76 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 31 July 2014 (3000:3200)

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