Study on the on-line dielectric loss tangent monitoring technique of capacitive-type equipment

被引：0

作者：

Hao, JJ ^{[1
]}

Ma, YJ ^{[1
]}

Huang, JH ^{[1
]}

Zhang, JG ^{[1
]}

机构：

[1] Hebei Agr Univ, Baoding 071001, Peoples R China

来源：

ICEMI 2005: Conference Proceedings of the Seventh International Conference on Electronic Measurement & Instruments, Vol 2 | 2005年

关键词：

high voltage capacitive-type equipment; dielectric loss tangent; on-line monitoring;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a new style digital instrument of on-line detecting dielectric was designed according to the principle of frequency conversion and harmonic analysis. The instrument is made up of SCM model AT89C51, high-voltage conversion inversion power sources, analog-digital converter model AD7862 and so on. The AT89C51 CPU, which is the core of the measuring system, can achieve frequency control of variable-frequency power sources, data acquisition, signal pre-process, data process, iota g delta calculation and display. The frequency-shift FFT technology was introduced to reduce periodicity of Fourier transform and improve SCM data-processing capacity. The results of emulation test shows that the instrument design has satisfying effect.

引用

页码：221 / 223

页数：3

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