Compensation of current transformers

被引：0
|
作者：
Baccigalupi, A. [1 ]
Liccardo, A. [2 ]
机构：
[1] Univ Naples Federico II, Dipartimento Informat & Sistemist, Via Claudio 21, I-80125 Naples, Italy
[2] Univ Naples Federico II, Dipartimento Ingn Elettr, I-80125 Naples, Italy
来源：
2007 IEEE INSTRUMENTATION & MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-5 | 2007年
关键词：
current transformers; phase error; ratio error; analog compensation;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In the paper a method for the compensation of current transformer is proposed. The method is bared on two main steps: (i) the realization of an equivalent short circuit so that the magnetizing current I-0 is not dependent from the burden resistance; (ii) a circuit generating a compensating voltage vc which compensate the voltage drop across the longitudinal parameters of the transformer. Since the developed transducer is a non-conventional transformer with the secondary nominal current of 5A, it is not possible to measure the phase and ratio error with a comparison method. At this aim, a technique for measuring the transformer error by means of a data acquisition system is also proposed in the paper.
引用
收藏
页码：2372 / +
页数：2
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