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High-voltage winding of dry type transformer

A technology of dry-type transformers and high-voltage windings, which is applied in the direction of transformer/inductor coil/winding/connection, transformer/inductance parts, prevention/reduction of unnecessary electric/magnetic influence, etc., and can solve the problem that the voltage level cannot be achieved , improvement and other issues, to achieve the effect of easy control of internal defects, reduce the difficulty of molding, and realize the effect of differentiated design

Pending Publication Date: 2021-12-21
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the high-voltage winding of the dry-type transformer in the prior art cannot realize the improvement of the voltage level, thereby providing a high-voltage winding of the dry-type transformer

Method used

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  • High-voltage winding of dry type transformer
  • High-voltage winding of dry type transformer
  • High-voltage winding of dry type transformer

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Embodiment Construction

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention discloses a high-voltage winding of a dry type transformer. The high-voltage winding comprises two tail end module units and a plurality of winding module units arranged between the two tail end module units side by side. Each winding module unit comprises a conductor coil and an insulating layer formed outside the conductor coil in a pouring manner, a first slot is formed in each insulating layer, and a plugging terminal electrically connected with the conductor coil is connected to each first slot; and the two plugging terminals on the two adjacent winding module units are electrically connected through the insulating connecting terminal. The high-voltage winding is divided into two basic structures including the winding module units and the tail end module units, the structures of the winding module units are the same, the voltage class is fixed, a reasonable number of winding module units are selected for connection according to different rated voltages of the high-voltage winding, and flexible expansion of different voltages can be achieved. And compared with integral pouring, the structural volume of each module unit is greatly reduced, internal defects during forming are easier to control, and the quality of the formed high-voltage winding is improved.

Description

technical field [0001] The invention relates to the technical field of high-voltage power transmission and distribution, in particular to a high-voltage winding of a dry-type transformer. Background technique [0002] Dry-type transformer refers to the transformer whose iron core and winding are not immersed in insulating oil. It is cooled by air convection, etc. It has the characteristics of flame retardant, flame retardant, fireproof, explosion-proof and environmental protection. It can go deep into the load center and is widely used in high-rise buildings, subways, railway stations, airports, hospitals, petrochemical enterprises and inside mines, etc. With the development of electric power technology, dry-type transformers are also rapidly popularized in the field of underground substations and wind power step-up transformers, and their performance has been recognized by the industry. [0003] At present, high-voltage windings, the core components of dry-type insulated h...

Claims

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Application Information

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IPC IPC(8): H01F27/28H01F27/29H01F27/32H01F27/34H01F27/30
CPCH01F27/28H01F27/32H01F27/29H01F27/34H01F27/324H01F27/303
Inventor 刘远张升贺之渊刘延卓王晓晖
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD