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首页> 外文期刊>Electric power systems research >Thermal modeling of disc-type winding for ventilated dry-type transformers
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Thermal modeling of disc-type winding for ventilated dry-type transformers

机译:通风干式变压器的盘式绕组的热模型

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摘要

A thermal model for disc-type winding of ventilated dry-type power transformers is presented. The proposed model was based on fundamental heat transfer mechanisms, i.e. heat conduction, convection and radiation. All cooling surfaces were identified, and heat transfer coefficients for each identified surface were presented. The thermal model was applied to a ventilated dry-type power transformer rated at 2000 kV A under different load conditions. Temperature distributions were calculated, and the hottest-spots were located accordingly. The temperatures for the predicted hottest-spots were measured by an infrared thermometer, and they were compared with the temperatures calculated by the model. They are in good agreement.
机译:提出了通风干式电力变压器盘式绕组的热模型。所提出的模型基于基本的传热机制,即热传导,对流和辐射。确定所有冷却表面,并给出每个确定表面的传热系数。该热模型被应用于在不同负载条件下额定为2000 kV A的通风干式电力变压器。计算温度分布,并据此确定最热点。预测的最热点的温度通过红外温度计测量,并将其与模型计算的温度进行比较。他们非常同意。

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