Iron core insulation component for dry-type transformer

Abstract

The invention relates to an iron core insulation component used for a dry-type transformer, which comprises two insulated long web plates and three insulated short web plates, wherein a plurality of longitudinally-arranged insulated long cushion blocks are uniformly spaced in the transverse direction on the long web plates; the first short web plate is fixedly connected on the two long cushion blocks that are positioned at the adjacent ends of the two long web plates; the long cushion block at the other end of the first long web plate is connected with one end of the second short web plate, and correspondingly a long cushion block is arranged at the other end of the second short web plate; the long cushion block that is arranged at the other end of the second long web plate is connected with one end of the third short web plate, and correspondingly a long cushion block is arranged at the other end of the third short web plate; a pull plate insertion slot is arranged between the two long cushion blocks at two ends of each short web plate respectively; and two through-holes are arranged on the two long web plates in the position corresponding to fixation holes on clamping pieces respectively. The iron core insulation component has a simple structure, is convenient to install, can ensure stable insulation property of the iron core for a long time, and meets the requirements for long-term safe operation of the dry-type transformer.

Description

Technical field: [0001] The invention relates to an iron core insulation component for a dry-type transformer. Background technique: [0002] At present, with the rapid development of cities and the increasing number of large buildings, dry-type power transformers with fire protection capabilities and maintenance-free features are more and more widely used. Generally, the service life of a dry-type transformer is 30 years, and the insulating parts of each part of the transformer are required to have stable electrical performance under the working environment conditions. Since dry-type transformers are often used in humid environments such as basements, if the insulation performance of the insulating parts is not good, it will endanger the operation safety of the transformer. At present, the iron core insulation of dry-type transformers adopts a thick epoxy glass cloth board structure. In order to prevent the epoxy glass cloth board from absorbing moisture, it is necessary ...

AI Technical Summary

Problems solved by technology

In order to prevent the epoxy glass cloth board from absorbing moisture, it is necessary to apply varnish on its surface, but the insulating varnish on the surface of the epoxy glass cloth board is easily damaged during the manufacturing process of the transformer and during the use of the product, thus affecting the insulation performance of the iron core. Harm the safe operation of the transformer

Images