British Kinematography (1948)

Record Details:

Title:
British Kinematography
Date:
1948
Publisher:
London, British Kinematograph Society
Volume:
British Kinematography (1948)
Leaf #:
000281
Language:
English
Subjects:
Motion Pictures, Film Industry Technical Magazine
Collection:
Hollywood Studio System, United Kingdom, and Global Cinema
Format:
Periodicals
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
March 21, 2024
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33 SINGLE PHASE with a performance almost equal to that of a normal three-phase equipment %*ft This transportable set is designed y^7>. for mounting under the rear of the 1*%I^1 arc 'amP nouse No glass ... no ^sjl^ moving parts — not even a cooling fan. Efficiency 70%, resulting in a single-phase input current of only 17 amps., R.M.S. when the set is delivering an output to the arc of 40 volts 65 amps. The DC output is continuously variable by stepless ^C control. The equipment incorporates an internal phase converting system and a 3-phase full-wave Westalite rectifier to give an output performance almost identical with a 3-phase rectifier operating on a 3-phase supply. Write for details to Dept. BK.S. 7 WESTINGHOUSE BRAKE & SIGNAL CO., LTD. 82, York Way, King's Cross, London, N.I RECTIFIERS for projector arcs