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

Abstract

The utility model relates to the utility model and provides an outlet angle ring piece for a high-voltage transformer, which is characterized in that it comprises a main body plate and a vertical plate, the main body plate is in the shape of a fan ring, and includes a short arc edge and a long arc edge, and the vertical plate is separated from the main body. The long arc edge of the plate extends vertically downward, the body plate has an outlet hole that is cut from the short arc edge to the long arc edge and penetrates the body plate, and the outlet guard plate is arranged along the edge of the outlet hole and extends vertically upward from the body plate , the outlet guard plate and the vertical plate are respectively on both sides of the body plate, and the body plate, the vertical plate and the outlet guard plate are integrally formed. The main body plate, the vertical plate and the outlet protection plate of the utility model are integrally formed, which is easy to manufacture and high in production efficiency. The board guide leads are routed from the top of the body board, which is not easy to be damaged, and plays a good role in guiding the outgoing lines.

Description

A kind of outlet angle ring piece for high voltage transformer

technical field

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

Background technique

Transformer insulation moldings are mainly used in power transmission equipment such as transformers. It can improve the reliability of transformer insulation, has extremely high electrical performance, can form an excellent oil barrier, reduce the effect of vertical electric fields, reduce various losses, and reduce unit The transportation quality and transportation size of the capacity are characterized by stable molding, suitable strength and minimum insulation distance. With the continuous development of the national power industry, the construction of large-capacity power stations and the demand for long-distance power transmission and transformation lines, the capacity and voltage level of power transmission and transformation equipment such as transformers continue to rise, and the requirements for the operational reliability of power transmission equipment are getting higher and higher. There is an urgent need for high-quality insulating moldings.

The angle ring is a kind of transformer insulation molding, which is placed at the end of the high-voltage winding, which can divide the oil gap at the end of the winding into several sections. Its function is to improve the electric field distribution of the oil gap and increase the breakdown voltage value of the entire gap. At the same time, it also greatly increases the creepage distance between the ends of the high and low voltage windings, and the strength of the main insulation can be improved after adding the angle ring. The existing corner rings are usually made of insulating material into several small corner ring pieces, and then the several small corner ring pieces are overlapped or glued together. One of the corner ring pieces is connected or bonded to the outlet sheath, which is troublesome to manufacture. The lead wire of the high-voltage winding is drawn out from the outlet sheath. During the transformer assembly process, when the lead wire is pulled, it is easy to damage the outlet sheath, which cannot play the role of guiding the outgoing wire, which increases the trouble of assembly.

SUMMARY OF THE INVENTION

In order to solve the above problems, the utility model proposes an outlet angle ring for a high-voltage transformer to better guide the outlet during transformer assembly, improve assembly efficiency, and simplify the production process of the outlet angle ring to improve production efficiency.

In order to achieve the above purpose, the utility model provides an outlet angle ring sheet for a high-voltage transformer, which is characterized in that it includes a main body plate and a vertical plate, and the main body plate is in the shape of a fan ring, including a short arc edge and a long arc edge, and the vertical plate It extends vertically downward from the long arc edge of the main body plate. The main body plate has a wire outlet hole which is cut from the short arc edge to the long arc edge and penetrates through the main body plate. Extending upward, the wire outlet guard plate and the vertical plate are respectively on two sides of the body plate, and the body plate, the vertical plate and the wire outlet guard plate are integrally formed.

The outlet angle ring for a high-voltage transformer provided by the utility model, the main body plate, the vertical plate and the outlet protective plate are integrally formed, the production is simple and the production efficiency is high, and the main body plate and the vertical plate can be well attached to the transformer coil during assembly. , the lead is pierced from the outlet hole, and the outlet guard guides the lead from the top of the body plate, which is not easy to be damaged, and plays a good role in guiding the outlet. The assembly efficiency is high, the assembly effect is good, and the insulation performance of the transformer is good.

Description of drawings

Fig. 1 is the structural schematic diagram of the outlet angle ring piece for high-voltage transformers;

Fig. 2 is the partial structure schematic diagram of the outlet angle ring piece for high-voltage transformer;

FIG. 3 is a partial structural schematic diagram of an outlet angle ring piece for a high-voltage transformer.

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

Detailed ways

1 to 3, the outlet angle ring piece for a high-voltage transformer includes a main body plate 1 and a vertical plate 2, and the main body plate 1 is in the shape of a fan ring, including a short arc side and a long arc side. The vertical plate 2 extends vertically downward from the long arc edge of the main body plate 1 , the vertical plate 2 and the main body plate 1 are perpendicular to each other, and the vertical plate 2 and the main body plate 1 are connected by arc transition. The main body plate 1 has a wire outlet hole, and the wire outlet hole is cut from the short arc edge to the long arc edge of the main body plate 1 and penetrates the main body plate 1 in the thickness direction. The wire outlet guard is arranged along the edge of the wire outlet hole, and extends vertically upward from the body plate 1 , and the wire outlet guard and the body plate 1 are perpendicular to each other. The outlet guard plate and the vertical plate 2 are respectively on the two sides of the main body plate 1 . The outlet shield includes a circumferential wall 31 and two radial walls 32. The circumferential wall 31 connects the two radial walls 32 between the two radial walls 32, and the circumferential wall 31 and the radial wall 32 are connected by an arc transition. The radial wall 32 is arranged along the radial direction of the body plate 1, and the circumferential wall 31 is coplanar with the vertical plate 2, that is, on the same cylindrical surface, which can simplify the production process and improve the production efficiency.

The number of outlet holes on the body plate 1 may be two or more, and the number of the outlet shields 3 corresponds to the number of the outlet holes. When there are more than two, the distance between two adjacent outlet holes is equal. In this embodiment, there are three outlet holes and three outlet shields 3 each. Two or more outlet positions are set together on a corner ring piece, which can classify and guide the leads of the transformer separately, meet the requirements of the transformer for higher outlet lines, and improve assembly efficiency; and can reduce the number of outlet corner rings and improve production efficiency.

The main body plate 1, the vertical plate 2 and the outlet guard plate 3 are integrally formed. The electrical grade natural high-purity insulating pulp is laid on the mold, and the outlet guard plate 3 is pressed with a special pressing plate. After the pulp is shaped and dried, it is made. One-piece molding can improve production efficiency, and can make the structure very stable, not easy to be damaged when the lead wire is involved, high assembly efficiency, good assembly effect, and good insulation performance of the transformer.

Claims (3)

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.

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