A chimney-type air-cooled oil-immersed transformer

Abstract

The invention provides a chimney-type air-cooled oil immersed transformer. The chimney-type air-cooled oil immersed transformer comprises a transformer body and vertical heat dissipation panels assembled on the periphery of the transformer body. An oil pillow, an insulating sleeve, a tapping switch and a gas relay are assembled at the upper portion of the transformer body, and an iron core and a winding are assembled inside the transformer body, and are soaked in transformer oil. The transformer body is fixed to the ground through heat dissipation columns, vertical cavities are formed in the heat dissipation columns, the bottoms of the heat dissipation columns are communicated to one ends of U-shaped tubular air suction pipes, and the air suction pipes are buried underground; vertically-tabular heat exchanging cavities are formed in the middles of the heat dissipation columns, the heat dissipation panels are horizontally inserted into the heat exchanging cavities, and the heat dissipation columns and the heat exchanging cavities are vertically communicated. When heat dissipation is carried out through the transformer heat dissipation columns, the chimney effect can be generated, the flow velocity of upward airflow is high, underground cool air is extracted, and the cooling effect is better accordingly.

Description

Technical field [0001] The invention belongs to the technical field of transformers, in particular to a chimney-type air-cooled oil-immersed transformer. Background technique [0002] The transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It can boost the low-voltage electricity and transmit it, and can also reduce the high-voltage electricity and deliver it to the user, which is convenient for the use of ordinary electrical appliances. , The transformer is mainly composed of iron core, winding, oil tank, oil pillow, insulating bushing, tap changer and gas relay. According to the different voltage transformation occasions and the specifications of the voltage transformation circuit, the transformers are classified into various types. Among them, the body, winding and iron core of the oil-immersed transformer are all installed in the oil tank filled with transformer oil, and the o...

AI Technical Summary

Problems solved by technology

The oil-immersed transformer has a certain temperature range. When the external temperature is too high, the heat dissipation performance of the traditional heat dissipation structure will be greatly reduced. When the temperature is too low, the oil in the transformer may freeze, which will affect the use of the transformer.

In traditional oil-immersed transformers, for the convenience of heat dissipation, the heat-dissipating plate adopts an exposed structure, which may easily cause the internal temperature of the oil-immersed transformer to be too low in winter, which will affect the use of the transformer and even cause damage to the transformer.

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