A Simple Model for Calculating Transformer Hot-Spot Temperature

被引：81
|
作者：
Susa, Dejan [1 ]
Nordman, Hasse [2 ]
机构：
[1] SINTEF, Energy Res Dept, NO-7465 Trondheim, Norway
[2] ABB, Power Transformers, Vaasa 65101, Finland
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2009年 / 24卷 / 03期
关键词：
Hot-spot temperature; oil viscosity; top-oil temperature; winding losses; POWER TRANSFORMERS; FUNDAMENTAL APPROACH; LOADING CAPABILITY; THERMAL-MODEL; PART II; CIRCUIT;
D O I：
10.1109/TPWRD.2009.2022670
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A simple model for calculating the hot-spot temperature is introduced. The model is based on the hot-spot to ambient gradient. The model considers the changes of the oil viscosity and winding losses with temperature. The results are compared with temperatures calculated by IEEE Annex G method and measured results at varying load for the following transformer units: 250-MVA ONAF, 400-MVA ONAF, and 605-MVA OFAF.
引用
收藏
页码：1257 / 1265
页数：9
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