Identifier: electricrailway351910newy (find matches)
Title: Electric railway journal
Year: 1908 (1900s)
Authors:
Subjects: Electric railroads
Publisher: (New York) McGraw Hill Pub. Co
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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:
s of miniature busbars. The various switchingoperations are shown by means of colored lights and mechani-cal indicators. Bull-switches are used on this board tominimize the danger from the accidental operation of theswitches by the operator. Above the bench board are the indicating instruments forthe alternators and feeders. Each panel represents analternator and a feeder group. The arrangement is such that ating room, in full view from any part of the room. Thisinstrument carries a set of code numbers indicating the natureof the call, i. c., whether to turbine No. 1, 2, 3, or 4, to tele-phone, etc. Coincidently with the illumination of a number aloud whistle is sounded. These calls may be sent in eitherdirection between generating floor and operating gallery, andthey remain active until the answering signal is given. Adjoining each turbine, and connected to the annunciatorsystem, is another set of signals covering the various opera- 39° ELECTRIC RAILWAY JOURNAL. (.Vol. XXXV. No. 10.
Text Appearing After Image:
tions required in connection with the starting andstopping of the machines. Each of these also requiresa positive signal by way of answer. LIGHTING The general illumination of boiler room aisles, ofthe generator room, galleries and basement is fur-nished from Cooper Hewitt mercury vapor lamps,operated on direct current circuits, while localizedlighting is by incandescent lamps normally suppliedwith alternating current. A few of the Cooper Hew-itt lamps are supplied from the exciter bus bars, anda portiond of the incandescent lighting system canbe supplied in emergency by means of double throwswitches with direct current from the exciter busbars. Very little artificial light is required in thegenerator room and galleries during day time owingto the ample window space. The lighting equipmentwas installed by the Watson-Flagg EngineeringCompany. SUBSTATION NO. 2. As previously stated, substation No. 2 is locatedwithin the power-house building. It contains four1500-kw rotary converters wit

Note About Images