Society of Motion Picture Engineers : incorporation and by-laws (1919)

Page scan 000126 from Society of Motion Picture Engineers : incorporation and by-laws

Record Details:

Title:
Society of Motion Picture Engineers : incorporation and by-laws
Date:
1919
Publisher:
Washington D.C. : Society of Motion Picture Engineers
Volume:
Transactions of the Society of Motion Picture Engineers (1919)
Leaf #:
000126
Language:
English
Subjects:
motion pictures, Cinematography -- Periodicals
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Preceeded by an unnumbered issue published in 1916 called: Incorporation and by-laws
Date Added:
September 12, 2024
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Ser/es He/d Armofure. Z Vv/RE ac. Generator. to the rapidly varying conditions which must be met by the studio electrician. In view of the foregoing statements, the ordinary commercial type of three-wire generator is not suitable for studio application where the unbalanced condition will often run as high as 30 to 40 per cent. While some may argue that such a condition is unwarranted and could be prevented by proper care in plugging in the lamps to maintain a better balanced condition of load, we must remember that time is a most valuable asset in film productions. Two-Wire Generators with Balancer Set. In larger installations, using a three-wire system, it is practical to employ a two-wire generator of double the required voltage and produce the neutral or third wire by means of a balancer set. This balancer set consists of two compound-wound generators direct connected on the same shaft and mounted on a common base, mechanically. 28