500kva及以下天然酯填充变压器绕组温度特性

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI:10.1109/CEIDP.2008.4772918

Byung-Seol Lee, J. Jeong, C. Park, I. Song

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引用次数: 4

摘要

天然酯流体因其环保、燃点高等优点，被广泛用作变压器冷却材料。天然酯的粘度比那种矿物油高。在常规变压器油中使用天然酯流体，会使变压器的最高油温和最高油温升高。虽然天然酯对纤维素纸劣化的影响小于矿物油，但在卷绕过程中，最高温度的升高可能会对绝缘纸的老化产生影响。将天然酯与矿物油在相同设计的500kva变压器上进行比较。两者之间的最高温偏差随着负荷的增加而增大。为了防止绝缘纸的额外老化，在用天然酯代替常规变压器油时需要改变设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The Characteristics of Winding Temperature for the Natural Ester Filled Transformer up to and Including 500 kVA

Because of environmental friendly and higher fire point, Natural ester fluids are widely used for transformer cooling materials. Natural ester has higher viscosity than that mineral oil. Top oil temperature and hottest temperature will be warmer when using natural ester fluid in transformers designed for conventional transformer oil. Although natural ester has less influence on deterioration of cellulose paper than mineral oil, an increased hottest temperature might have an effect on the aging of insulating paper in coil winding. When comparing natural ester with mineral oil at the same designed transformers up to 500 kVA. The deviation of hottest temperature between the two is increased with load. For preventing additional aging of insulation paper, design changes are required when substituting natural ester for conventional transformer oil.

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2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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