Oil-immersed type transformer

Abstract

The invention discloses an oil-immersed type transformer. Key points of a technical scheme provided by the invention are as follows: the oil-immersed type transformer comprises an oil tank filled with transformer oil, an iron core, a coil winding and a foot pad, wherein the iron core and the coil winding are arranged in the oil tank, and the foot pad is arranged below the oil tank; radiators are arranged on the side walls of the oil tank and comprise a plurality of cooling fins capable of covering the side walls of the oil tank, and each cooling fin comprises a heat-dissipation cavity capable of accommodating the transformer oil; the foot pad is a reverse H-shaped steel channel; one side of the foot pad corresponding to the oil tank is fixedly connected with the oil tank, and a bolt hole is formed in the other side of the foot pad corresponding to the oil tank; an oil conservator is arranged above the oil tank, an oil level indicator for measuring the oil level of the transformer oil is arranged on the oil conservator; an oil discharge plug for changing the transformer oil is arranged on one side of the oil tank corresponding to the foot pad, and a vibration-reduction cushion is arranged at a position, corresponding to the iron core, in the oil tank. The oil-immersed type transformer provided by the present invention increases the heat-dissipation area of the radiators and effectively improves the heat dissipation effect of the transformer.

Description

technical field [0001] The invention relates to the field of transformers, in particular to an oil-immersed transformer. Background technique [0002] During the process of transmitting electric energy, the inner surface of the transformer will generate loss. The loss due to the resistance of the wire is related to the load current and is proportional to the load current. This part of the loss is basically converted into heat energy, causing the transformer coil winding The temperature rises. Generally speaking, the coil winding of the transformer, especially the low-voltage winding, generates the most heat and the highest temperature due to the largest current when the transformer is running. However, the insulating material of the transformer has a certain temperature limit. After the temperature is high, its insulation capacity will be greatly reduced, which will affect the safe operation of the transformer; and the transformers in the prior art generally have insufficien...

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Problems solved by technology

[0002] During the process of transmitting electric energy, the inner surface of the transformer will generate loss. The loss due to the resistance of the wire is related to the load current and is proportional to the load current. This part of the loss is basically converted into heat energy, causing the transformer coil winding The temperature rises. Generally speaking, the coil winding of the transformer, especially the low-voltage winding, generates the most heat and the highest temperature due to the largest current when the transformer is running. However, the insulating material of the transformer has a certain temperature limit. After the temperature is high, its insulation capacity will be greatly reduced, which will affect the safe operation of the transformer; and the transformers in the prior art generally have insufficient heat dissipation area of ​​the radiator, and the ideal heat dissipation effect cannot be achieved, and if an additional heat dissipation device is added, there will be Defects of complex structure and high production cost

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