| 摘要 |
The present invention relates to the shading for the transformer. The shading intercepts the sunshine beaten on the transformer to restraint the rise of the temperature of the insulation oil and radiates the heat generated in the inner part of the transformer. This shading can be installed not only on the transformer but on the other power system facility. In case the part to shade is large plane type, the shading shaped large plane or the shading composed several small separated shadings stuck on the sticking bar is fixed on the transformer or the power system facility. In case the part to shade is complex small separated shadings are installed directly on the transformer or the power system facility with bolt and nut. The fixing method of the shading with U-bolt on the radiator and a cylinder type shading 71 for the pole transformer is suggested. We have confirmed that the difference of the temperature of the insulation oil of the two transformers, one that a shading is installed on it and the other that a shading is not installed, is large, about 15°C. The shading according to the present invention is one of the methods to cool the transformer or the other power system facility without additional energy.
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