CALCULATION OF TEMPERATURE RISES IN DISC TYPE WINDINGS WITH DIRECTED OIL FLOW
Publish place: 13th Annual Conference of Mechanical Engineering
Publish Year: 1384
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISME13_568
تاریخ نمایه سازی: 21 اسفند 1385
Abstract:
In this paper, a model of a disc type winding for a transformer with directed oil flow is presented which utilizes a network of oil flow paths. Along each path segment, oil velocities and temperature rises are computed. The model includes temperature dependent oil density, resistivity, and oil viscosity and temperature and velocity dependent heat transfer and friction coefficients. Because of the non- linearity, an iterative solution is necessary. Temperature and oil velocities are computed and compared with experiment values. From this, the average winding temperature rise and the hot spot temperature can be determined.
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Authors
Mehdi Abloo
M. Sc in Mechanical Engineering, Convert of Energy, Engineering and Design Department of Iran Transfo Company
Seyed Mehdi Pesteei
Ph. D in Mechanical Engineering, Faculty Member of Urmia University Engineering and Design Department of Iran Transfo Company
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