DocumentCode :
1375722
Title :
Dielectric admittances in current transformers
Author :
Arnold, A.H.M.
Volume :
97
Issue :
60
fYear :
1950
fDate :
12/1/1950 12:00:00 AM
Firstpage :
727
Lastpage :
732
Abstract :
The ratio of a current transformer having appreciable capacitance between windings is dependent upon whether and how the windings are connected together. There are five ratios which may be defined without a knowledge of the external circuits, one of them without any direct link between windings and four with a low-resistance link between one primary terminal and one secondary terminal; only two of these ratios may be measured directly by a simple bridge. Formulae are developed in the paper by means of which all the ratios may be deduced from simple bridge measurements; the adequacy of the formulae is tested by experimental measurements. A simple test is developed for determining quickly whether the effect of capacitance is appreciable in a transformer of unknown characteristics, and methods of construction of low-capacitance transformers are discussed.
Keywords :
capacitance;
fLanguage :
English
Journal_Title :
Proceedings of the IEE - Part II: Power Engineering
Publisher :
iet
Type :
jour
DOI :
10.1049/pi-2.1950.0204
Filename :
5239996
Link To Document :
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