대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2009년도 제40회 하계학술대회
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- Pages.1215_1216
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- 2009
식물성 절연유와 광유가 사용된 유입변압기의 온도분포 특성
Analysis on the Temperature Distribution Characteristics of Insulating oil of Transformer Using the Vegetable oil and Mineral oil
- An, Jung-Sik (Inha University) ;
- Shim, Meoung-Seop (Inha University) ;
- Jung, Joong-Il (Inha University) ;
- Kim, Nam-Ryul (Joongwon Company) ;
- Huh, Chang-Su (Inha University)
- 발행 : 2009.07.14
초록
Most transformer use insulating and cooling fluids derived from petroleum crude oil, but mineral oil is some possibility of environmental pollution and fire with explosion. vegetable oil fluids extracted from seed has superior biodegradation and fire-resistant properties including an exceptionally high fire point enhancing fire safety. In this study, it is aimed at the practicality of substituting natural ester dielectric fluid for mineral oil in liquid insulation system of transformers. As a rise in coil winding temperature has a direct influence on transformer life time, it is important to evaluate the temperature rise of coil winding in vegetable oil in comparison with mineral oil. Three transformers for the test are designed with 10KVA, 13.2KV, one phase unit. The temperature are directly measured in insulating oil of these transformers with the two sorts of natural ester and mineral oil dielectric fluid respectively. Temperature of vegetable oil transformers was similar to temperature of mineral oil transformer in the same design at 80% load and above.
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