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The Study on Temperature Rise of Natural Oil Circulation Power Transformer with Pannel-Type Radiator

Author: YangZengJun
Tutor: WangXiuChun
School: Hebei University of Technology
Course: Thermal Power Engineering
Keywords: Power Transformer Natural oil circulation Temperature Calculation Method High lighted oil
CLC: TM41
Type: Master's thesis
Year: 2004
Downloads: 337
Quote: 7
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Abstract


Oil-immersed transformer has good heat dissipation, low loss, large capacity, low prices, etc. Most current power grid running on power transformer for oil-immersed transformer, more than 80% is to use natural oil circulation cooling way. Due to the energy saving, environmental protection, to avoid the need of oil flow electrification, the original use of auxiliary equipment (pumps, blowers) on large transformer for heat transfer more and more use of ONAN cooling way. Transformer factory is now commonly used calculation method of the temperature rise of the oil-immersed transformer project cannot very good consistent with the actual temperature rise, sometimes deviation is large, and cannot be used in high ignition point oil transformer temperature rise calculation. This topic based on the practical engineering application, based on the basic principle of heat transfer and the classical experiment heat transfer principles, through research and analysis on the theory of transformer heating cooling, puts forward a set of calculating average transformer oil temperature rise and top oil temperature rise and the temperature rise of the windings, core temperature rise and the hot spot temperature rise calculation method and computing software are developed, the effect factors of transformer temperature rise is analyzed. This algorithm is suitable for the natural natural wind cooling and cooling cycle transformer oil and cooling fluid for conventional oil or high ignition point oil transformer. Results experimental data is verified, and measured values coincide well.

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Power transformers
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