DocumentCode
1406503
Title
A high sensitivity power factor bridge
Author
Kouwenhoven, W. B. ; Banos, Alfonso
Author_Institution
Johns Hopkins University, Baltimore, Md.
Volume
51
Issue
1
fYear
1932
Firstpage
40
Lastpage
41
Abstract
AN A-C. BRIDGE of high precision has been developed for power factor measurements in an investigation of the properties of cable compounds and papers and of the characteristics of cables that occur after impregnation. The bridge, a modified form of the Schering bridge, possesses several novel features and advantages. The detecting instrument is a moving coil a-c. galvanometer with field excitation supplied from a phase shifting transformer permitting independent ratio and phase-angle balances. A shielded transformer electrostatically isolates the galvanometer from the bridge circuits. This bridge is completely shielded and guarded.
Keywords
Arresters; Bridge circuits; Cable shielding; Capacitance; Circuit breakers; Dielectric measurements; Power transformer insulation;
fLanguage
English
Journal_Title
Electrical Engineering
Publisher
ieee
ISSN
0095-9197
Type
jour
DOI
10.1109/EE.1932.6429595
Filename
6429595
Link To Document