File:Cathedral Rocks or The Three Graces.jpg

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Identifier: pacificgaselectr61915paci (find matches)
Title: Pacific Gas and Electric magazine
Year: 1909 (1900s)
Authors: Pacific Gas and Electric Company
Subjects: Pacific Gas and Electric Company Electric utilities Public utilities
Publisher: (San Francisco, Calif.) : Pacific Gas and Electric Co.
Contributing Library: San Francisco Public Library
Digitizing Sponsor: San Francisco Public Library

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Text Appearing Before Image:
ach between pointsmany miles apartand show the energyfrom billions of voltspressure being dissi-pated to MotherEarth; while the rel-ative speed of soundand light never wasso forcibly impressedin our mortal minds.The next day Iwent to the Yosemitepower-house to lookinto its engineeringfeatures. It is a gal-vanized iron gableroof building locatedon the Merced riverabout one-quarter ofa mile below its junc-tion with the Illilou-ctte creek cascades.This plant is oper-ated and maintainedby the United Statesgovernmeni, and allof tiie employees areon tiie governmentpay-roll. Tiie oper-ators are furnished cottage, fuel, waterand light, so that tlieir actual salary aver-ages mucli heller llian in most privatecompanies. Nalin-ally, tiie night load forsiicli a plant is iigliting only. Tlic sys-tem of road illumination at crossings andbridges is extended to the Poliono iiridgc.The (lay load is only partly ilhiininalion,being principally motor load for the gov-ernment rock cruslier and wood-sawing
Text Appearing After Image:
Cntlicdrnl II plants. There are, also, a refrigeratingplant and washing machines that areoperated by electricity. The machinery of the governmentpower-plant consists of two 75 k. w. Gen-eral Electric Company 2-phase, 2300-voltgenerators running at 900 r. p. m., eachbelt-driven by a 50-inch diameter Peltonwater wheel unit. The original plant hadbut the one unit and it is still installed,with no regulatingneedle valve or gov-ernor mechanism,but just controlledby a plain 10-inchgate valve. The sec-ond unit added bythe government hasan adjustable belt-tightener as well as amodern Pelton gover-nor equipment. The4-wire 2300-volt linesleave the station ona very neat system ofline and pole con-struction. Outdoortransformers stepdown the voltagefrom 2300 to 112-220volts. T h e t w oswitchboard panels,installed in 1902 byHenshaw-Hulkeley &((>., are neatly ar-ninged and are pro-\ ided for metering(111 tlie high side. The pipe line isi;i()0 feet long andhas a pressure of hol)ounds per squa

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https://www.flickr.com/photos/internetarchivebookimages/14595795928/

Author Internet Archive Book Images
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(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.
Volume
InfoField
1914
Flickr tags
InfoField
  • bookid:pacificgaselectr61915paci
  • bookyear:1909
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Pacific_Gas_and_Electric_Company
  • booksubject:Pacific_Gas_and_Electric_Company
  • booksubject:Electric_utilities
  • booksubject:Public_utilities
  • bookpublisher:_San_Francisco__Calif_____Pacific_Gas_and_Electric_Co_
  • bookcontributor:San_Francisco_Public_Library
  • booksponsor:San_Francisco_Public_Library
  • bookleafnumber:270
  • bookcollection:sanfranciscopubliclibrary
  • bookcollection:americana
Flickr posted date
InfoField
30 July 2014

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17 September 2015

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