Oil-immersed transformer with sealing oil leakage prevention function

Abstract

The invention discloses an oil-immersed transformer with a sealing oil leakage prevention function, and belongs to the field of oil-immersed transformers. In the scheme, an oil outlet hole formed in the lower end of a transformer main body provides an oil leakage position for the whole transformer main body; before a sealing piece of a transformer body cannot complete sealing work, cooling oil can flow into a spiral pipe from an oil outlet hole in advance under the action of oil pressure, along with the increase of the mass of the cooling oil, a bearing piston downwards presses the position of a check ring, an alarm is given through a pressure-sensitive sensor installed in the check ring, technicians are reminded to maintain and repair in time, oil seepage points of the oil-immersed transformer which is installed and sealed improperly can be controlled, overflowing cooling oil is not prone to adhering to the surface of the oil-immersed transformer, normal heat dissipation of the oil-immersed transformer is not prone to being affected, fire accidents are not prone to being induced, and excessive influence on the surrounding environment of the oil-immersed transformer is not easily caused.

Description

technical field [0001] The invention relates to the field of oil-immersed transformers, in particular to an oil-immersed transformer with the function of preventing oil leakage from sealing. Background technique [0002] Oil-immersed transformer refers to a transformer that uses petroleum liquid as a cooling substance. Compared with the traditional dry type, oil-immersed transformer oil has good insulation performance and good thermal conductivity. At the same time, transformer oil is cheap, which can solve the problem of large-capacity heat dissipation and High-voltage insulation problems, so it is widely used in industrial and civil building power supply and distribution systems. [0003] The low-voltage windings of oil-immersed transformers generally adopt a cylindrical structure with copper foil around the shaft, except for small-capacity copper wires; the high-voltage windings adopt a multi-layer cylindrical structure, so that the ampere-turn distribution of the winding...

AI Technical Summary

Problems solved by technology

[0004] Oil leakage has always been the main fault of oil-immersed transformers, and the two main reasons for oil leakage are unqualified materials of oil-immersed transformers, improper sealing during installation, and cooling oil from oil-immersed transformers. If the inside seeps out, on the one hand, it will reduce the amount of internal cooling oil, which will affect the normal cooling and insulation functions. The normal heat dissipation of the transformer, at the same time, the static electricity or electric spark arc generated by the oil-immersed transformer in the normal working process is easy to directly ignite the fuel film, causing a fire accident

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