Operating Characteristics of the High-Intensity Alternating-Current Arc for Motion Picture Projection
A detailed description is given of the high-intensity a-c. carbons, including the current-carrying capacity, the arc voltage, and the rate of consumption. The appearance of the arc and the carbons when the arc is burning is shown in a number of illustrations covering overload and underload conditions, and long, short, and medium arc lengths. The essential requirements for the feeding mechanism and transformer to operate the arc are outlined. It is emphasized that the carbons must be operated under certain definite conditions for the best results.
- Print ISSN
- 0097-5834
- Published
- 1934-07
- Content type
- Original Research
- DOI
- 10.5594/J07439
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