CN216648041U

CN216648041U - Outgoing line angle ring sheet for high-voltage transformer

Info

Publication number: CN216648041U
Application number: CN202122393880.1U
Authority: CN
Inventors: 刘晨; 龚慧; 单英玉
Original assignee: Weidmann Electrical Technology Jiaxing Co ltd
Current assignee: Weidmann Electrical Technology Jiaxing Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-05-31
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a high-voltage transformer outgoing line angle ring piece, which is characterized by comprising a body plate and a vertical plate, wherein the body plate is in a fan ring shape and comprises a short arc-shaped edge and a long arc-shaped edge, the vertical plate vertically extends downwards from the long arc-shaped edge of the body plate, the body plate is provided with a line outlet hole which is cut into the long arc-shaped edge from the short arc-shaped edge and penetrates through the body plate, an outgoing line protection plate is arranged along the edge of the line outlet hole and vertically extends upwards from the body plate, the outgoing line protection plate and the vertical plate are respectively arranged on two sides of the body plate, and the body plate, the vertical plate and the outgoing line protection plate are integrally formed. The body plate, the vertical plate and the outgoing line protection plate are integrally formed, the manufacturing is simple and convenient, the production efficiency is high, during assembly, the body plate and the vertical plate can be well attached to a coil of a transformer, a lead penetrates out of a line outlet hole, the outgoing line protection plate guides the lead to be routed from the upper side of the body plate, the lead is not easily damaged, the outgoing line guiding effect is good, the assembly efficiency is high, the assembly effect is good, and the insulation performance of the transformer is good.

Description

Outgoing line angle ring sheet for high-voltage transformer

Technical Field

The utility model relates to the technical field of transformer insulation, in particular to an outgoing line angle ring sheet for a high-voltage transformer.

Background

The transformer insulating molded part is mainly used on power transmission equipment such as a transformer, can improve the reliability of transformer insulation, has extremely high electrical performance, can form an excellent oil barrier, reduces the action of a vertical electric field, reduces various losses, reduces the transportation quality and the transportation size of unit capacity, and has the characteristics of stable molding, proper strength and minimum insulating distance. With the continuous development of the national power industry, the requirements of large-capacity power station construction and long-distance power transmission and transformation lines, the capacity and voltage grade of power transmission and transformation equipment such as transformers and the like are continuously increased, the requirement on the operation reliability of the power transmission equipment is higher and higher, and thus high-quality insulating molded parts are urgently needed.

The angle ring is an insulating molding part of the transformer, is placed at the end part of a high-voltage winding, can divide an oil gap at the end part of the winding into a plurality of sections, and has the functions of improving the electric field distribution of the oil gap, improving the breakdown voltage value of the whole gap, greatly increasing the creepage distance between the end parts of the high-voltage winding and the low-voltage winding, and improving the strength of main insulation after the angle ring is added. The existing angle ring is generally made of insulating materials into a plurality of small angle ring pieces, and then the small angle ring pieces are lapped or stuck together. One of the angle ring pieces is connected or bonded with the outgoing line sheath, so that the manufacture is troublesome. The outgoing line of the high-voltage winding is led out from the outgoing line sheath, and the outgoing line sheath is easily damaged when the outgoing line is dragged in the assembly process of the transformer, so that the outgoing line can not be guided, and the assembly trouble is increased.

Disclosure of Invention

In order to solve the problems, the utility model provides the outgoing line angle ring sheet for the high-voltage transformer, so that outgoing lines can be better guided during transformer assembly, the assembly efficiency is improved, the manufacturing process of the outgoing line angle ring sheet is simplified, and the production efficiency is improved.

In order to achieve the purpose, the utility model provides a wire outlet angle ring sheet for a high-voltage transformer, which is characterized by comprising a body plate and a vertical plate, wherein the body plate is in a fan-shaped ring shape and comprises a short arc-shaped edge and a long arc-shaped edge, the vertical plate vertically extends downwards from the long arc-shaped edge of the body plate, the body plate is provided with a wire outlet hole which is cut into the body plate from the short arc-shaped edge to the long arc-shaped edge and penetrates through the body plate, a wire outlet protection plate is arranged along the edge of the wire outlet hole and vertically extends upwards from the body plate, the wire outlet protection plate and the vertical plate are respectively arranged on two sides of the body plate, and the body plate, the vertical plate and the wire outlet protection plate are integrally formed.

According to the wire outlet angle ring piece for the high-voltage transformer, the body plate, the vertical plate and the wire outlet protection plate are integrally formed, the manufacturing is simple and convenient, the production efficiency is high, during assembly, the body plate and the vertical plate can be well attached to a coil of the transformer, the lead wire penetrates out of the wire outlet hole, the wire outlet protection plate guides the lead wire to be routed from the upper side of the body plate, the lead wire is not easily damaged, a good wire outlet guiding effect is achieved, the assembly efficiency is high, the assembly effect is good, and the insulation performance of the transformer is good.

Drawings

FIG. 1 is a schematic structural diagram of an outgoing line angle ring sheet for a high-voltage transformer;

FIG. 2 is a schematic view of a portion of the structure of an outlet angle ring for a high voltage transformer;

fig. 3 is a partial structural schematic diagram of an outgoing angle ring sheet for a high-voltage transformer.

The present invention will be described in further detail with reference to the accompanying drawings.

Detailed Description

Referring to fig. 1 to 3, the outgoing line angle ring sheet for the high voltage transformer includes a body plate 1 and a vertical plate 2, wherein the body plate 1 is in a fan ring shape and includes a short arc-shaped edge and a long arc-shaped edge. Riser 2 extends perpendicularly downwardly from the long arc limit of body board 1, riser 2 and body board 1 mutually perpendicular, riser 2 and body board 1 adopt circular arc transitional coupling. The body plate 1 has a wire hole, which is cut into from the short arc side to the long arc side of the body plate 1 and penetrates the body plate 1 in the thickness direction. The outlet protective plate is arranged along the edge of the outlet hole and vertically extends upwards from the body plate 1, and the outlet protective plate is vertical to the body plate 1. The outgoing line guard plate and the vertical plate 2 are respectively arranged on two sides of the body plate 1. The outlet guard plate comprises a circumferential wall 31 and two radial walls 32, the circumferential wall 31 is connected with the two radial walls 32 between the two radial walls 32, and the circumferential wall 31 and the radial walls 32 are in transition connection by adopting an arc. The radial wall 32 is arranged along the radial direction of the body plate 1, and the circumferential wall 31 and the vertical plate 2 are coplanar, namely on the same cylindrical surface, so that the production process can be simplified, and the production efficiency can be improved.

The number of the outlet holes on the body plate 1 can be two or more, and the number of the outlet guard plates 3 corresponds to the number of the outlet holes. When the number of the outlet holes is more than two, the distances between two adjacent outlet holes are equal. In this embodiment, there are three wire outlet holes and three wire outlet guard plates 3. Two or more wire outlet positions are arranged on one corner ring piece together, so that the lead wires of the transformer can be classified and respectively guided, the requirement of high wire outlet of the transformer is met, and the assembly efficiency is improved; but also can reduce the outgoing angle ring pieces and improve the production efficiency.

The body plate 1, the vertical plate 2 and the outgoing line protection plate 3 are integrally formed, electrician-grade natural-color high-purity insulating paper pulp is laid on a die, a special pressing plate is used for pressing the outgoing line protection plate 3, and the outgoing line protection plate is manufactured after the paper pulp is shaped and dried. The integrated into one piece can improve production efficiency, can make the structure very firm moreover, is difficult to be damaged when the lead-out wire is dragged, and assembly efficiency is high, and assembly effect is good, and the insulating properties of transformer is good.

Claims

1. The utility model provides a high-voltage transformer is with play line angle ring piece, a serial communication port, including body board and riser, the body board is fan ring shape, including short arc limit and long arc limit, the riser is from the perpendicular downwardly extending in long arc limit of body board, and the body board has and cuts into and run through the wire hole of body board from short arc limit to long arc limit, and the backplate of being qualified for the next round of competitions sets up along the edge of wire hole, upwards extends perpendicularly from the body board, and backplate and riser of being qualified for the next round of competitions are respectively in the both sides of body board, riser and backplate integrated into one piece of being qualified for the next round of competitions.

2. The outlet angle ring sheet for the high-voltage transformer according to claim 1, wherein the number of the outlet holes is two or more, the number of the outlet protective plates corresponds to the number of the outlet holes, and when the number of the outlet angle ring sheets is two or more, the distances between two adjacent outlet holes are equal.

3. The outlet angle ring sheet for the high-voltage transformer according to claim 2, wherein the outlet protection plate comprises a circumferential wall and two radial walls, the circumferential wall connects the two radial walls between the two radial walls, the radial walls are arranged along the radial direction of the body plate, and the circumferential wall is coplanar with the vertical plate.