CN220106243U - Plateau impact-resistant pillar type current transformer - Google Patents
Plateau impact-resistant pillar type current transformer Download PDFInfo
- Publication number
- CN220106243U CN220106243U CN202321506749.4U CN202321506749U CN220106243U CN 220106243 U CN220106243 U CN 220106243U CN 202321506749 U CN202321506749 U CN 202321506749U CN 220106243 U CN220106243 U CN 220106243U
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- Prior art keywords
- primary winding
- insulating
- current transformer
- type current
- pillar type
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- 238000004804 winding Methods 0.000 claims abstract description 39
- 230000001012 protector Effects 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 238000005266 casting Methods 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- 239000012212 insulator Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003822 epoxy resin Substances 0.000 abstract description 3
- 229920000647 polyepoxide Polymers 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a plateau impact-resistant pillar type current transformer, which is characterized in that two copper bars at the head and tail ends of a primary winding are locked and fixed by an insulating part for fixing, the primary wiring board is an input end and an output end of high-voltage primary winding current, the primary winding is wound into a rectangular structure by adopting an ultrathin copper strip, a secondary winding is sleeved on the primary winding, the position of a secondary lead is directly cast into a secondary wiring box, an insulating protector is cast and molded by adopting epoxy resin under a vacuum condition, and the bottom of the insulating protector is provided with an installation bottom plate. The design of the 10-layer equidistant circular umbrella of the insulation protector adopts a plurality of ultrathin copper strips to be wound into a rectangular primary winding and a shielding net, so that the field equalizing strength is well achieved, and the electrical performance of the product is more stable and reliable; through the insulating piece for fixing, the first copper bar and the tail copper bar of the primary winding are effectively fixed together, and the short-circuit impact resistance is greatly improved.
Description
Technical Field
The utility model relates to the technical field of medium-voltage converter equipment in an electric power system, in particular to a pillar type current transformer which can reliably operate in a plateau area for a long time and has strong short-circuit impact resistance.
Background
The pollution level is defined according to the pollution source property and the severity of the substation, at present, most of the outdoor strut type current transformers are large in product size, the pollution level is relatively low, and the outdoor strut type current transformers are only suitable for outdoor plain areas, if the outdoor strut type current transformers run on the plateau for a long time, the insulating performance is gradually weakened due to the fact that air is thin and flashover is frequent, and then the product is caused to climb along the surface until the product is burnt; in addition, the common outdoor pillar type current transformer has weak short circuit impact resistance.
Disclosure of Invention
Aiming at the improvement of at least one defect in the prior art, the utility model provides the plateau impact-resistant pillar type current transformer, which not only can be used for reliably running in a plateau area for a long time, but also can effectively improve the short-circuit impact resistance of products by designing, developing and fixing primary winding head and tail end technologies.
The technical scheme adopted by the utility model is that the plateau impact-resistant pillar type current transformer comprises a primary wiring board, a fixing insulating piece, a primary winding, a secondary wiring box, an installation bottom board and an insulating protector; the primary winding adopts ultrathin copper strips to wind into a rectangular structure, the annular secondary winding is sleeved on the primary winding, the secondary lead position is directly cast into a secondary junction box, the insulating protector adopts epoxy resin to cast under vacuum condition, and the bottom of the insulating protector is provided with a mounting bottom plate.
Preferably, the upper part of the insulating protector is cast into 10 layers of equidistant circular umbrellas, and the section of the umbrella is a right triangle.
Preferably, the primary winding and the secondary winding are made into shielding layers according to the shape of the machine body.
Preferably, the two ends of the fixing insulating piece are studs, and the middle is a square column.
Preferably, the middle positions of the left surface and the right surface of the lower part of the insulating protector are cast into buckles.
The beneficial effects of the utility model are as follows: the design of the 10-layer equidistant circular umbrella of the insulating protector can not only improve the insulating strength of products, but also improve the pollution level to be more than IV level, and is suitable for long-term stable operation in high-altitude areas and other severe environments; the adoption of a plurality of ultrathin copper strips is wound into a rectangular primary winding and a shielding net, so that the field equalizing strength is well achieved, and the electrical performance of the product is more stable and reliable; through the insulating piece for fixing, the first copper bar and the tail copper bar of the primary winding are effectively fixed together, and the short-circuit impact resistance is greatly improved.
Drawings
Fig. 1 is a front view of a plateau impact-resistant pillar type current transformer of the present utility model.
Fig. 2 is a side view of a plateau impact-resistant pillar type current transformer of the present utility model.
Fig. 3 is a top view of a plateau impact-resistant pillar type current transformer of the present utility model.
The marks in the figure: 1. the novel high-voltage transformer comprises a primary wiring board, a circular umbrella, a fixing insulating piece, a primary winding, a shielding layer, a secondary winding, a secondary lead, a secondary wiring box, a mounting base plate, an insulating protector and a buckle.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.
The current transformer has relatively low pollution level and weak short-circuit impact resistance, and can reliably operate in a plateau area for a long time, and the short-circuit impact resistance of a product is effectively improved by designing and developing and fixing the technologies of the head and the tail ends of the primary winding 4.
As shown in fig. 1, 2 and 3, the plateau impact-resistant pillar type current transformer comprises a primary wiring board 1, a fixed insulating part 3, a primary winding 4, a secondary winding 6, a secondary wiring box 8, a mounting bottom plate 9 and an insulating protector 10, wherein the insulating protector 10 is formed by casting outdoor epoxy resin under a vacuum condition, the upper part of the insulating protector 10 is cast into 10 layers of equidistant circular umbrella 2, and the umbrella section is a right triangle, so that the insulating strength of a product can be improved, the pollution level can be improved to be more than IV level, and the plateau impact-resistant pillar type current transformer is suitable for long-term stable operation in high-altitude areas and other severe environments; in addition, the middle positions of the left surface and the right surface of the lower part of the product are cast into the shape of a buckle 11, so that the product is convenient to carry; in order to improve the field intensity distribution of the product, the primary winding 4 is wound into a rectangle by adopting a plurality of ultrathin copper strips, so that the field intensity can be uniform, and the skin effect can be reduced; the annular secondary winding 6 is sleeved on the primary winding 4, shielding layers 5 imitating the shape of a body are arranged on the outer surfaces of the primary winding 4 and the secondary winding 6, the two ends of the insulating part 3 for fixing are studs, the middle is a square column, and the studs are matched with nuts, spring washers and flat washers; the insulating part 3 is used for locking and fixing the copper bars at the head and tail ends of the rectangular primary winding 4 together so as to achieve the purpose of short circuit impact resistance. The primary wiring board 1 is an input end and an output end of the high-voltage primary winding 4, the head end and the tail end of the secondary winding 6 are intensively led out into the secondary wiring box 8 through the secondary lead 7, and the secondary wiring box 8 is divided into three outgoing lines, namely, the left side, the front side and the back side, so that multidirectional installation is facilitated. The bottommost part of the utility model is provided with a mounting bottom plate 9, which is convenient for mounting.
In order to increase the protection of secondary wiring, the secondary wiring position is directly cast into a secondary junction box 8, so that three-side multidirectional outgoing lines can be realized; for easy installation, the lowest part of the utility model is provided with a mounting bottom plate.
The utility model has the beneficial effects that the design of the 10-layer equidistant circular umbrella of the insulating protector 10 adopts the arrangement that a plurality of ultrathin copper belts are wound into a rectangular primary winding and a shielding net, so that the field equalizing strength is well achieved, and the electrical performance of the product is more stable and reliable; the first copper bar and the tail copper bar of the primary winding 4 are effectively fixed together through the fixing insulating piece, so that the short-circuit impact resistance is greatly improved.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A plateau impact-resistant pillar type current transformer is characterized in that: the device comprises a primary wiring board (1), a fixing insulator (3), a primary winding (4), a secondary winding (6), a secondary wiring box (8), a mounting bottom plate (9) and an insulating protector (10); the utility model provides a high-voltage primary winding (4) current input and output, primary winding (4) adopt ultra-thin red copper strip to wind into rectangular structure, annular secondary winding (6) suit is on primary winding (4), secondary lead (7) position direct casting becomes a secondary terminal box (8), insulating protection body (10) adopts epoxy to pour into shape under the vacuum condition, mounting plate (9) are equipped with to insulating protection body (10) bottom.
2. The altitude impact-resistant pillar type current transformer according to claim 1, wherein: the upper part of the insulating protector (10) is poured into 10 layers of equidistant circular umbrellas (2), and the section of the umbrella is a right triangle.
3. The altitude impact-resistant pillar type current transformer according to claim 1, wherein: the primary winding (4) and the secondary winding (6) are made into a shielding layer (5) according to the shape of the body.
4. The altitude impact-resistant pillar type current transformer according to claim 1, wherein: the two ends of the insulating part (3) for fixing are double-ended studs, and the middle is a square column.
5. The altitude impact-resistant pillar type current transformer according to claim 1, wherein: the middle positions of the left surface and the right surface of the lower part of the insulating protection body (10) are cast into a buckle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321506749.4U CN220106243U (en) | 2023-06-13 | 2023-06-13 | Plateau impact-resistant pillar type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321506749.4U CN220106243U (en) | 2023-06-13 | 2023-06-13 | Plateau impact-resistant pillar type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220106243U true CN220106243U (en) | 2023-11-28 |
Family
ID=88846794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321506749.4U Active CN220106243U (en) | 2023-06-13 | 2023-06-13 | Plateau impact-resistant pillar type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220106243U (en) |
-
2023
- 2023-06-13 CN CN202321506749.4U patent/CN220106243U/en active Active
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