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gis external current transformer

A technology for current transformers and external packaging, which is applied in the direction of inductors, transformer/inductor shells, transformer/inductor coils/windings/connections, etc., which can solve the problem that coils cannot be arranged, and achieve compact structure, cost saving, and stable performance Effect

Active Publication Date: 2018-02-02
HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a GIS exterior-mounted current transformer to solve the problem that the coils of the existing current transformer cannot be arranged in a limited space

Method used

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Examples

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Embodiment Construction

[0023] An embodiment of the GIS externally mounted current transformer in the present invention is as follows: Figure 1~Figure 3 As shown, it includes a casing 2 and a coil 1. The longitudinal section of the casing 2 is a U-shaped opening downward, including a radially inner sidewall, a radially outer sidewall, and a connecting wall between the radially inner sidewall and the radially outer sidewall. , the radial inner side wall, the radial outer side wall and the connecting wall are all welded by aluminum plates to form an integrated structure, which is beneficial to improve the sealing performance and structural stability. A coil accommodating cavity is formed.

[0024] The bottom opening of the housing 2 is provided with an annular sealing plate 3 , and four suspension rings 7 are uniformly distributed on the outer side wall of the opening along the circumferential direction. The sealing plate 3 is provided with a threaded fixing seat (not shown in the figure) whose axis ...

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Abstract

The invention relates to a GIS exterior-mounted current transformer. The GIS exterior-mounted current transformer includes a shell, in which there are more than two groups of coils arranged in the axial direction. plate, there is a pouring gap between the coil and the sealing plate, between the radially inner side and / or the radially outer side of the coil and the corresponding radially inner side wall or radially outer side wall of the housing, and the casting space is poured There is epoxy resin or polyurethane, and the sealing plate is provided with pouring holes. The present invention adopts the above-mentioned technical scheme, and the pouring does not need to occupy a large space for installation and operation of the pressing structure, and can reserve a larger space for installing coils with higher parameters. Compared with the prior art, the structure is compact and can Coils with larger radial dimensions are used to meet the special needs of coils arranged in a limited space, and the casting and fixing method can improve waterproof and moisture-proof performance.

Description

technical field [0001] The invention relates to a GIS externally mounted current transformer. Background technique [0002] Gas insulated metal-enclosed switchgear (GIS) for short As a whole, the outside is protected by a metal shell, and the shell is filled with SF6 insulating gas. Compared with open switchgear, it has the advantages of compact structure, small footprint and reliable performance. Important primary equipment. [0003] Due to the highly integrated structure of GIS equipment, in the initial product development stage, for the design structure and size of each component in the equipment, a certain design margin is reserved under the premise of combining the conventional requirements of the power system at that time to meet the development of the power system. According to the special requirements of power users, after the product structure of GIS equipment is finalized, if the overall dimensions of the GIS equipment change due to the change of the internal com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/30H01F27/02H01F27/29H02B13/035
Inventor 刘彦军王振张书琴龙锦霞吕进段阿利陈怀亮刘亚辉张卓鹏沈学银
Owner HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR
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