CN218730347U - Transformer super large arc long angle ring - Google Patents

Abstract

The utility model belongs to the technical field of the transformer, especially, relate to a transformer super large arc long angle ring, wherein, the angle ring is by five curved angle ring bodies along the annular structure that the circumference direction concatenation formed in proper order. The five angle ring bodies with the same structure are spliced, so that the purpose of reducing the splicing quantity is achieved, and the discharge positions of the transformer are reduced.

Description

Transformer super large arc long angle ring

Technical Field

The utility model belongs to the technical field of the transformer, especially, relate to a transformer super large arc long angle ring.

Background

The operating field strength of the transformer is high, so that the electric field distribution is very concentrated at some locations inside the transformer, for example at the ends of the high-voltage coil. Flashover or breakdown often occurs due to the local operating field strength at the insulating surface exceeding the allowable field strength of the insulating material (oil impregnated paper insulation) itself. In order to solve the problem, in general, when the end insulation of the transformer of 35kV class or above is processed, in order to improve the insulation performance and reduce the insulation size, the corner ring of the insulation member is placed at the end of the high-voltage coil to increase the allowable field strength.

In the prior art, most transformer manufacturers adopt a soft angle ring made of insulating paper boards with the thickness of 0.5 mm. Due to the fact that the shearing opening is formed, effective insulation is reduced by at least 0.5mm compared with actual insulation thickness, the soft angle ring is poor in insulation performance and difficult to insert, due radian is difficult to guarantee after the angle ring is inserted, and possibility of surface discharge is increased. The recently developed forming angle ring well overcomes the defects, but because the processing equipment and the tooling die are complex, the transformer cannot be produced in batches due to the characteristics of the transformer product, the production period is long, and the price is high.

At present, all the manufacturing methods of transformer angle rings are performed by adopting a splicing method, as shown in fig. 1 and fig. 2, 6 same arc-shaped angle ring components are adopted for splicing, for the splicing of the angle rings, the more the splicing quantity is, the more complex the processing is, the greater the difficulty is, and the discharge risk of the transformer is increased (the strength of splicing points is insufficient).

Disclosure of Invention

An object of the utility model is to provide a transformer super large arc long angle ring to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a transformer super large arc long angle ring, wherein, the angle ring is the cyclic annular structure that forms by five curved angle ring bodies splice in proper order along the circumferential direction.

In this technical scheme, based on present angle ring's structure, improved the structure of the monolithic angle ring body of preparation for this, splice through adopting the angle ring body of five the same structures, and then reach the purpose that reduces concatenation quantity to and reduce the discharge position of transformer.

In the technical scheme, further, the arc lengths of the splicing parts at the two sides of each angle ring body are consistent.

In this technical scheme, for the intensity that improves the angle ring after the concatenation, set the concatenation arc length of every angle ring body both sides to the same for this reason for the tie point of angle ring is more even.

In any of the above technical solutions, further, the radian of the angle ring body is 83 °.

In this technical scheme, present six lamella angle rings, its concatenation radian is at 10, and we set to five lamella back now, after a plurality of experiments, if the discovery still goes the concatenation according to original 10, can reduce the intensity of angle ring body, nevertheless if the overlap joint volume is too much then not only improved manufacturing cost, but also inconvenient processing, for this, after the test, set up the radian of angle ring body into 83, make its overlap joint radian when 11, make most suitable.

In any of the above technical solutions, further, the angle ring body includes a first arc-shaped plate vertically arranged and a second arc-shaped plate perpendicular to the first arc-shaped plate.

In this technical scheme, the angle ring uses as the insulating part, installs in the inboard and the outside of coil, for the realization surrounds to the coil, divide into first arc and second arc with the angle ring body for this reason, and after the angle ring concatenation, the inner ring and the outer loop that form can carry out omnidirectional protection to the coil.

In any of the above technical solutions, further, a fillet is provided at the joint of the first arc-shaped plate and the second arc-shaped plate.

In any of the above technical solutions, further, the thickness of the angle ring body is 1.5mm-5mm.

In the technical scheme, the thickness of the angle ring body is set between 1.5mm and 5mm, so that the strength of the angle ring body is guaranteed.

The utility model has the advantages that: five angle ring bodies with the same structure are adopted for splicing, so that the purpose of reducing the splicing number is achieved, and the discharge positions of the transformer are reduced.

Drawings

FIG. 1 is a schematic top view of a prior art structure;

FIG. 2 is a schematic side view of a prior art configuration;

fig. 3 is a schematic top view of the present invention;

fig. 4 is a schematic side view of the present invention;

fig. 5 is a schematic top view of the angle ring body of the present invention;

fig. 6 is a schematic side view of the angle ring body of the present invention;

the reference numbers in the figures are: 100. an angle ring body; 110. a first arc-shaped plate; 120. a second arc-shaped plate; 130. round corners; 200. and (6) splicing.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

In the description of the present application, it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and in the case of not making a reverse description, these orientation terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Example 1:

the embodiment provides a transformer super large arc long angle ring, wherein, the angle ring is the annular structure that is formed by five curved angle ring bodies 100 along the circumferential direction concatenation in proper order.

In the technical scheme, based on the structure of the existing angle ring, the structure of the manufactured single-piece angle ring body 100 is improved, and five angle ring bodies 100 with the same structure are spliced to achieve the purpose of reducing the splicing number and reduce the discharge position of the transformer.

The angle ring may be specifically divided into an inner angle ring and an outer angle ring, the inner angle ring is installed inside the coil, the outer angle ring is installed outside the coil, and the omni-directional insulation is achieved by the combination of the inner angle ring and the outer angle ring.

In the embodiment, specifically, the angle ring body 100 includes a first arc plate 110 vertically disposed and a second arc plate 120 perpendicular to the first arc plate 110.

In this technical scheme, the angle ring uses as the insulating part, installs the inboard and the outside at the coil, for realizing the encirclement to the coil, divide into first arc 110 and second arc 120 with angle ring body 100 for this reason, after the angle ring concatenation, the omnidirectional protection can be carried out to the coil to the inner ring and the outer loop that form.

In the present embodiment, the arc length of the splice 200 at both sides of each angle ring body 100 is optimized to be uniform.

In this technical scheme, for the intensity that improves the angle ring after the concatenation, set the concatenation arc length of every angle ring body 100 both sides to the same for this reason for the tie point of angle ring is more even.

In the present embodiment, it is preferable that the joint of the first arc plate 110 and the second arc plate 120 is provided with a round corner 130.

In the present embodiment, the thickness of the angle ring body 100 is preferably 1.5mm to 5mm.

In the technical scheme, the thickness of the angle ring body 100 is set to be 1.5mm-5mm, so that the strength of the angle ring body 100 is guaranteed.

Example 2:

the embodiment provides a transformer ultra-large arc long-angle ring, which comprises the technical scheme of the embodiment and has the following technical characteristics.

In this embodiment, the arc of the angle ring body 100 is 83 °.

In this technical scheme, present six lamella angle rings, its concatenation radian is at 10, and we set to five lamella back now, after a plurality of experiments, if discovery still goes the concatenation according to original 10, can reduce the intensity of angle ring body 100, nevertheless if the overlap joint volume is too much then not only improved manufacturing cost, but also inconvenient processing, for this reason, after the test, set up the radian of angle ring body 100 into 83, make its overlap joint radian when 11, make most suitable.

While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present application and the claims.

Claims (2)

1. The transformer oversized arc long angle ring is characterized in that the transformer oversized arc long angle ring is of an annular structure formed by sequentially splicing five arc angle ring bodies (100) along the circumferential direction, and the arc lengths of splicing parts (200) at two sides of each angle ring body (100) are consistent;

the radian of the angle ring body (100) is 83 degrees; the angle ring body (100) comprises a first arc-shaped plate (110) and a second arc-shaped plate (120), wherein the first arc-shaped plate (110) is vertically arranged, the second arc-shaped plate (120) is perpendicular to the first arc-shaped plate (110), and a round angle (130) is arranged at the joint of the first arc-shaped plate (110) and the second arc-shaped plate (120).

2. The transformer ultra-large arc long angle ring of claim 1, characterized in that the thickness of the angle ring body (100) is 1.5mm-5mm.

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