An oil-immersed explosion-proof transformer

Abstract

The invention discloses an oil-immersed explosion-proof transformer, which comprises a transformer assembly, an iron core assembly is movably installed inside the transformer assembly, a top cover is movably installed on the top end of the transformer assembly, and one side of the top end of the top cover is fixed. Three fixed tables are installed, and the top of the fixed table is provided with high-voltage terminals, and the other side of the top of the top cover is provided with three low-voltage terminals. The invention prevents the oil inside the oil tank from entering the inside of the iron core through the sealing ring, and prevents the oil from flowing into the gap between the iron core and the upper iron yoke during the assembly of the device during use, resulting in the failure of the iron core during use. Accident.

Description

technical field [0001] The invention relates to the technical field of oil-immersed transformer design, in particular to an oil-immersed explosion-proof transformer. Background technique [0002] With the rapid development of social economy, the use of transformers has become one of the very common machines in people's daily life. Distribution transformers are one of the important equipment in the power supply and distribution systems of industrial and mining enterprises and civil buildings. Low-voltage windings of oil-immersed transformers In addition to copper wires for small capacity, the cylindrical structure with copper foil around the shaft is generally used; the high-voltage winding adopts a multi-layer cylindrical structure, so that the ampere-turn distribution of the winding is balanced, the magnetic flux leakage is small, the mechanical strength is high, and the short-circuit resistance strong ability. [0003] However, when the existing oil-immersed transformer i...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an oil-immersed explosion-proof transformer to solve the problem that the oil-immersed transformer proposed in the above background technology often fails due to oil immersion into internal components during use, which in turn causes the device to be prone to explosion Dangerous, and the heat dissipation effect of the device is not good, etc.

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