I. Kolcunová, J. Zbojovský, M. Pavlík, Dušan Medved’, B. Dolník, Samuel Bucko
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Abstract
In power transformers in which is dominated the oil-paper insulation system, it is the effort to use innovative insulating materials to achieve greater quality, reliability and longer service life of the transformer. In this paper, we present the results of research into the insulating properties of an oil-paper insulation system in a DC and AC electric field. In the experiments MOL TO 40A transformer oil and two types of paper used in transformers, KREMPEL DPP and insulating paper used in BEZ transformers, were used. The results from the experiments show that KREMPEL insulating paper has a higher electrical strength and the electrical strength of both oil-impregnated insulating papers is greater when applying DC voltage.
在以油纸绝缘为主的电力变压器系统中，采用创新的绝缘材料是提高变压器质量、可靠性和使用寿命的努力方向。本文介绍了油纸绝缘系统在直流和交流电场中绝缘性能的研究结果。实验采用MOL TO 40A变压器油和两种变压器用纸，分别是KREMPEL DPP和BEZ变压器用绝缘纸。实验结果表明，在直流电压作用下，KREMPEL绝缘纸具有较高的电强度，两种油浸绝缘纸的电强度都较大。
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