Drying and curing technology for coil and body of transformer

Abstract

The invention discloses a drying and curing technology for a coil and a body of a transformer. The technology comprises the following steps of: drying and curing the coil and the body of the transformer respectively by virtue of an electric drying room, wherein the drying and curing temperature of the coil of the transformer is 140 DEG C, the drying and curing time of the coil of the transformer is 3-3.5 hours, the drying and curing temperature of the body is 130 DEG C, and the drying and curing time of the body is generally 12-15 hours; and cooling the coil of the transformer intensively after drying and curing. Compared with an oil-immersed drying and curing technology for the coil and the body of an power distribution transformer, the drying and curing technology disclosed by the invention has the following advantages: 1) the drying time is shortened, and the production efficiency is improved greatly; 2) since the drying time is relatively short, the production cost and the resource energy consumption of the transformer are reduced; and 3) the drying and curing temperature is shortened, thus the heat insulation performance of the insulator is ensured effectively.

Description

technical field [0001] The invention relates to the technical field of transformer production, in particular to a drying and curing process for a coil and a body of an oil-immersed distribution transformer. Background technique [0002] At present, for the drying treatment of the coils of conventional oil-immersed distribution transformers, the temperature is kept at about 160 ° C, and the pre-drying time is generally about 5 to 6 hours; the drying temperature of the body is generally about 140 ° C, and the drying time is generally 15 ~ 18 hours or so. According to this process, there are two disadvantages: 1) the production efficiency is reduced; 2) due to the long time, it needs to consume resources such as electric energy, which increases the production cost and resource energy consumption of the transformer; 3) due to the high temperature, it will cause The aging phenomenon of the internal insulation of the coil affects the product quality. Contents of the invention ...

AI Technical Summary

Problems solved by technology

According to this process, there are two disadvantages: 1) the production efficiency is reduced; 2) due to the long time, it needs to consume resources such as electric energy, which increases the production cost and resource energy consumption of the transformer; 3) due to the high temperature, it will cause The aging phenomenon of the internal insulation of the coil affects the product quality

Images