油纸绝缘系统长时间常数极化现象谱诊断方法

[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials Pub Date : 1991-07-08 DOI:10.1109/ICPADM.1991.172167

A. Bognár, G. Csépes, L. Kalocsai, I. Kispál

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引用次数: 32

摘要

提出了一种评价油纸绝缘体介电性能的新方法。在10/sup -3/ ~ 10/sup 4/ s的极化时间常数范围内，出现了所谓的长时间常数界面极化现象，这种现象受浸渍纸绝缘材料的含水量和老化副产物的吸附的影响很大。该方法可作为溶解气体分析和其他分析方法的补充诊断方法，提供浸渍纸绝缘的一般状态和介质老化信息。该试验方法和装置已成功地在匈牙利电力局高压电力变压器上得到广泛应用。

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Spectrum of polarization phenomena of long time-constant as a diagnostic method of oil-paper insulating systems

A novel test method for the assessment of the bulk dielectric properties of oil-paper insulation has been developed. Specifically, the authors describe a simple on-site DC testing and apparatus for the determination of the polarization spectrum in the polarization time-constant domain of 10/sup -3/ to 10/sup 4/ s. In this range the so-called interface polarization phenomena of long time constant are active, which are highly influenced by the water content of oil-impregnated paper insulation and the adsorption of byproducts of aging. The method can be regarded as a complementary diagnosis method of dissolved gas analysis and other analytical methods and gives information on the general state and dielectric aging of the impregnated paper insulation. The test method and apparatus have been successfully and widely used on high-voltage power transformers of the Hungarian Electricity Board.<>

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[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials

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