DocumentCode
1448672
Title
A carrier-current frequency-shift system for protection of transformer banks
Author
Beckwith, R. W.
Author_Institution
General Electric Company. Syracuse, N. Y.
Volume
70
Issue
8
fYear
1951
Firstpage
678
Lastpage
681
Abstract
Using crystal-controlled frequency-shift techniques, this system provides fast operation with a high degree of reliablity. This discussion describes the design requirements and tells how they were met.
Keywords
Crystals; Electron tubes; Noise; Radio transmitters; Receivers; Relays; Time frequency analysis;
fLanguage
English
Journal_Title
Electrical Engineering
Publisher
ieee
ISSN
0095-9197
Type
jour
DOI
10.1109/EE.1951.6436763
Filename
6436763
Link To Document