Insulation device on high-tension coil of dry-type transformer

Abstract

The invention discloses an insulation device on a high-tension coil of a dry-type transformer. The structure of the insulation device comprises clamping grooves, a supporting base, a heat sink, iron cores, iron core columns, an insulation device body, high-tension insulators, wiring terminals, conductive columns, high-tension connecting rods and high-tension leads. In order to achieve the purposethat by means of the insulation device on the high-tension coil of the dry-type transformer, the high-tension coil can be movably detached and the size of the high-tension coil can be changed to control the voltage decrease value, the insulation device body is arranged on the iron cores, the insulation device body is matched with hexagonal screws through an insulation cover plate, so that the high-tension coil and a low-tension coil are movably detached, it is convenient to control the voltage decrease value through changing the sizes of the high-tension coil and the low-tension coil, the useefficiency of the high-tension coil and the low-tension coil is improved, and the voltage decrease efficiency is improved with at least two wiring terminals arranged on the insulation device body.

Description

Technical field [0001] The invention is an insulating device on a dry-transformation high-voltage coil, which belongs to the technical field of power equipment. Background technique [0002] At present, the high-voltage coils of dry-type transformers usually adopt segmented multilayer cylindrical coils. In order to meet the partial discharge capacity below the national standard range of 10pC, the segmented multilayer cylindrical coils must be equipped with sufficient interlayers and sections. Thick insulation layer, the use of more insulation materials, so the use of other materials in the product also increases, making the production cost of the entire dry-type transformer higher; and the insulation of the end of the existing high-voltage coil is not good, corresponding The composite field strength is relatively high, the main insulation distance between the high-voltage coil and the low-voltage coil is longer, and the insulation distance between the high-voltage coil and the ir...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an insulating device on the high-voltage coil of a dry transformer to solve the problem that the high-voltage coil cannot be disassembled and the size of the high-voltage coil cannot be replaced to control the voltage drop value and improve the use efficiency of the high-voltage coil The problem

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