Abstract

This paper is devoted to evaluating the results of comparative experimental studies of various techniques for drying the impregnated insulation of power electrical equipment in the process of manufacture and repair: the standard drying technique in high-power convective electric furnaces and the proposed technique of accelerated drying in hardware complexes using IR radiation. In particular, the paper presents the results of an analysis of the microstructure of the polymer insulation surface after drying by these methods. The research was carried out in industrial conditions, using specialized certified equipment. In theoretical terms, the paper presents calculations on the justification of the use of IR radiation in the drying of multilayer insulation structures of various compositions. The conducted studies confirm the hypothesis that microcavities form on the surface and in the thickness of the polymer insulation when using convection during drying, which reduce the quality and reliability of the insulation of electrical equipment as a whole. At the same time, the proposed technology and technique of accelerated drying of electrical equipment insulation using IR radiation can improve the quality of the resulting polymer insulation, increasing its reliability. In addition, this technology can significantly improve the performance of insulation repair and reduce energy costs.

中文翻译：

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各种方法干燥后的电气设备绝缘主要电气参数的对比实验研究

摘要

本文致力于评估制造和维修过程中用于干燥电力电气设备浸渍绝缘的各种技术的对比实验研究结果：大功率对流电炉的标准干燥技术和建议的加速干燥技术在使用IR辐射的硬件设备中。特别是，本文提出了通过这些方法干燥后的聚合物绝缘表面的微观结构的分析结果。该研究是在工业条件下，使用经过认证的专用设备进行的。从理论上讲，本文介绍了在干燥各种成分的多层绝缘结构中使用IR辐射的合理性的计算方法。进行的研究证实了这样的假设，即在干燥过程中使用对流时，会在聚合物绝缘体的表面和厚度上形成微腔，这会降低整个电气设备绝缘的质量和可靠性。同时，所提出的使用IR辐射加速干燥电气设备绝缘的技术和技术可以提高所得聚合物绝缘的质量，从而提高其可靠性。另外，这项技术可以显着提高绝缘修复性能并降低能源成本。提出的使用IR辐射加速干燥电气设备绝缘的技术和技术可以提高所得聚合物绝缘的质量，从而提高其可靠性。另外，这项技术可以显着提高绝缘修复性能并降低能源成本。提出的使用IR辐射加速干燥电气设备绝缘的技术和技术可以提高所得聚合物绝缘的质量，从而提高其可靠性。另外，这项技术可以显着提高绝缘修复性能并降低能源成本。