File:The Street railway journal (1904) (14738459696).jpg

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English:

Identifier: streetrailwayjo241904newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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About This Book: Catalog Entry
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Text Appearing Before Image:
anel is a three-pole double-throw switch,with fuses for motor-driven blowers. Next, thereis a blank panel for the a. c. side of another rotary,and it will have similar instruments, with the ex-ception of blower switches. The next panel is forthe d. c. side of the rotary, and contains a 1200-amp. M. K. circuit breaker, main switch, rotaryfield rheostat, Thomson recording wattmeter andan illuminated dial 1000 ammeter. The circuitbreaker has a low-voltage release coil, whichoperates also in connection with speed-limit-ing switch on converter. The two followingd. c. 600-volt feeder panels have M. K. cir-cuit breakers; 1500-amp. static ammeters, mainswitches and M. D. lightning arresters. The d. c.feeders are carried through clay conduits to a dis-tributing pole, where they are tapped to the trol-leys. At one end of the board is a d. c. 750-voltastatic voltmeter on a swinging bracket, and on theother end, adjoining tine exciter panels, is a 175- i3o STREET RAILWAY JOURNAL (Vol. XXIV. No. 4
Text Appearing After Image:
July 23, 1904.) STREET RAILWAY JOURNAL. 131 D.C. Board CSF Panel, GOO Volt CSR Pane! C(10 Volt, 300 K.W. 300 K.W.*8 S 2 1 % volt astatic meter for exciters; also a G. E. round-patternsynchronizer, used in paralleling generators. This operationis effected on the low-tension side. The generator panels contain instruments which serve ascombined wattmeters and power-factor indicators. They are oper-ated by double-throw switches.When the switch is in the upperposition it throws the potentialcoil of the wattmeter in phase withcurrent on the current-coil onunity power-factor. A lag or leadof current out of phase with e. m.f., of course, reduces the watts, thetrue power-factor being shown bythe reading of instruments. Withthe switch in the downward positionthe potential coil of wattmeter isconnected across the two outsidelegs, thus forming a potential90 degs. out of phase withcurrent at unity power-factor andwattmeter will indicate zero. Witha lag or lead of the main currentout of phase with

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https://www.flickr.com/photos/internetarchivebookimages/14738459696/

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
1904
Flickr tags
InfoField
  • bookid:streetrailwayjo241904newy
  • bookyear:1884
  • bookdecade:1880
  • bookcentury:1800
  • booksubject:Street_railroads
  • booksubject:Electric_railroads
  • booksubject:Transportation
  • bookpublisher:New_York___McGraw_Pub__Co_
  • bookcontributor:Smithsonian_Libraries
  • booksponsor:Smithsonian_Libraries
  • bookleafnumber:163
  • bookcollection:smithsonian
Flickr posted date
InfoField
27 July 2014
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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14738459696. It was reviewed on 15 October 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

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