Dry-type transformer with coating crack reminding function

Abstract

The invention discloses a dry-type transformer with a coating crack reminding function, and belongs to the technical field of transformers. After an anti-corrosion coating on the surface of the dry-type transformer cracks, air enters the space between a first net cylinder and a metal net cylinder, so that filler in the first net cylinder and the metal net cylinder reacts to release heat, so that the first elastic film expands to extrude insulating liquid, the insulating liquid penetrates through the first elastic film, the metal net cylinder and the non-woven fabric and flows out of the crack, a reminding effect is achieved for workers; when the anti-corrosion coating falls off, fluff can prevent the anti-corrosion coating from falling off, meanwhile, an adhesive in pits is extruded out in the falling-off process, the adhesive is quickly and uniformly distributed under the action of cotton threads, and the fallen anti-corrosion coating is reset and is in contact with the adhesive under the action of the elastic force of the fluff, so that the fallen anti-corrosion coating is adhered to the original position, and the anti-falling function is achieved.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a dry-type transformer with a coating crack warning function. Background technique [0002] Dry-type transformer (foreign name: dry-type transformer) refers to a transformer whose iron core and winding are not immersed in insulating oil. It is widely used in local lighting, high-rise buildings, airports, wharf CNC machinery and equipment, etc. [0003] In order to prolong the service life of existing dry-type transformers, the surface is often coated with anti-corrosion coating, but with the increase of the service life of the anti-corrosion coating, cracks will inevitably appear in the anti-corrosion coating, because when the cracks first appear, they are small and difficult to find , so that it is easy to develop into larger cracks, and even cause partial peeling off of the anti-corrosion coating, so that the dry-type transformer is exposed to the risk of corrosion in the ...

AI Technical Summary

Problems solved by technology

[0003] In order to prolong the service life of existing dry-type transformers, the surface is often coated with anti-corrosion coating, but with the increase of the service life of the anti-corrosion coating, cracks will inevitably appear in the anti-corrosion coating, because when the cracks first appear, they are small and difficult to find , so that it is easy to develop into larger cracks, and even cause partial peeling off of the anti-corrosion coating, making the dry-type transformer exposed to the air and there is a risk of corrosion

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