Using Instrument Transformers in a Wider Frequency Range

被引：0

作者：

Draxler, Karel ^{[1
]}

Styblikova, Renata ^{[2
]}

机构：

[1] Czech Tech Univ, Fac Elect Engn, Tech 2, Prague 16027 6, Czech Republic

[2] Czech Metrol Inst, Dept Electromagnet Quant, Prague, Czech Republic

来源：

2011 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC) | 2011年

关键词：

current transformer; voltage transtomer; ratio error; phase displacement; resonant frequency; lock-in amplifier;

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The introductory part of this paper presents the theory of instrument current and voltage transformers with a view to using them in a wider frequency range. A general substitution diagram is presented, including the parasitic capacitances which take effect when using a transformer at frequencies higher than mains frequency. An important parameter is the resonant frequency of the transformer, which is defined in the paper. Methods for determining the frequency dependence of the instrument current and voltage transformer are given at the end of the paper.

引用

页码：1207 / 1210

页数：4

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