Light-transmitting box-type transformer

Abstract

The invention discloses a light-transmitting box-type transformer, and belongs to the field of transformers. The light-transmitting box-type transformer comprises a transformer body with a top plate and a bottom plate respectively installed at the upper and lower ends. A sleeve is connected on the upper end of the transformer body. The sleeve comprises an insulating tube body and a plurality of insulating umbrellas. A photochemical layer is connected at the inner wall of each insulating umbrella. A light-transmitting layer wraps the surface of each insulating umbrella. The light-transmitting layer comprises a healing layer and a transparent layer. A transparent self-healing body is arrange in the healing layer. The photochemical layer and the light-transmitting layer are respectively arranged on the inner wall and the outer surface of the transformer sleeve, and the healing layer is arranged in the light-transmitting layer. When the inner wall of the transformer sleeve cracks and expands to the light-transmitting layer, the transparent self-healing body in the healing layer is utilized to fill the gap to achieve the self-sealing effect. In addition, the light beam emitted by the photochemical layer is emitted outward from the gap through the transparent self-healing body so that maintenance personnel can more easily observe the crack position and take maintenance measures in time.

Description

technical field [0001] The invention relates to the field of transformers, in particular to a light-transmitting box-type transformer. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components are primary coil, secondary coil and iron core (magnetic core). [0003] Box-type transformers (usually referred to as "box transformers") concentrate the design of traditional transformers in box-type housings, with small size, light weight, low noise, low loss, and high reliability. They are widely used in residential quarters, commercial centers, light Stations, airports, factories, mines, enterprises, hospitals, schools and other places. As a complete set of power distribution equipment, the box-type transformer is an organic combination of transformers, high-voltage voltage control equipment, and low-voltage voltage control equipment. Its basic principle is to carry out reasonable assembly...

AI Technical Summary

Problems solved by technology

The position of the sealing structure moved by the user during installation and maintenance should be carefully restored to the original sealing state. In addition, it is closely related to the sealing, that is, to ensure that the surface of the porcelain sleeve is intact, and cracks and scars are not allowed on the surface of the porcelain sleeve. The reason is that porcelain Once cracks and scars appear on the surface of the sleeve, it means that the porcelain sleeve basically loses its own mechanical strength, its heat resistance and insulation performance will be greatly reduced, and the thermal stability will deteriorate, which will easily cause transformer failure

[0011] However, in the actual inspection process, the inspectors can only observe the cracks on the outer surface of the transformer bushing. It is difficult for the inspectors to find the aging cracks inside the transformer bushing. Longer, during the non-maintenance time, after the aging and cracking inside the transformer bushing, the crack expands to the outer surface of the bushing, resulting in the failure of the sealing of the whole bushing, and it is too late for the next maintenance

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