CN216250366U - Lining shielding structure for shell type transformer iron core - Google Patents
Lining shielding structure for shell type transformer iron core Download PDFInfo
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- CN216250366U CN216250366U CN202122579153.4U CN202122579153U CN216250366U CN 216250366 U CN216250366 U CN 216250366U CN 202122579153 U CN202122579153 U CN 202122579153U CN 216250366 U CN216250366 U CN 216250366U
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Abstract
The utility model relates to a lining shielding structure for a shell type transformer iron core, and belongs to the technical field of transformer devices. The technical scheme is as follows: the two upper lining shields (1) are respectively arranged at two corners at the upper end of the iron core (8), and the two lower lining shields (3) are respectively arranged at two corners at the lower end of the iron core; an upper T-shaped beam shield (9) and a lower T-shaped beam shield (10) are symmetrically arranged at the upper part and the lower part of the iron core, the two upper lining shields are lapped at the upper end of the iron core, and an upper oil through plate (2) is arranged between the upper lining shield and the upper T-shaped beam shield; the two lower lining shields (3) are lapped at the lower end of the iron core, and the lower oil passing plate (4) is arranged between the lower T-shaped beam shield (10) and the lower lining shields (3); the number of the lining insulators (7) is two, and the lining insulators are respectively arranged on the left side and the right side of the iron core (8). The utility model has the beneficial effects that: by arranging the lining shield, the electric field at the corner of the iron core is effectively relaxed, and the method has wide applicability.
Description
Technical Field
The utility model relates to a lining shielding structure for a shell type transformer iron core, and belongs to the technical field of transformer equipment.
Background
The iron core magnetic flux loop of the shell type transformer is outside the coil, and the iron core surrounds the coil. The shell type transformer coil is formed by vertically arranging and connecting a plurality of rectangular wire cakes according to a specified sequence, high-voltage windings and low-voltage windings are arranged in a staggered mode, and iron core laminations are horizontally stacked along the periphery of the coil, so that electric fields are concentrated at the corners of the iron core inside the coil.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lining shielding structure for a shell type transformer iron core, which effectively relieves the electric field at the corner of the iron core by arranging the lining shielding, has wide applicability and effectively solves the problems in the prior art.
The technical scheme of the utility model is as follows: the lining shielding structure for the shell type transformer iron core comprises an upper lining shield, an upper oil-passing plate, a lower lining shield, a lower oil-passing plate and a lining insulator, wherein the number of the upper lining shields is two, and the two lining shields are respectively arranged at two corners at the upper end of the iron core; the upper part and the lower part of the iron core are symmetrically provided with an upper T-shaped beam shield and a lower T-shaped beam shield, the two upper lining shields are lapped at the upper end of the iron core, and an upper oil through plate is arranged between the upper lining shields and the upper T-shaped beam shields; the two lower lining shields are lapped at the lower end of the iron core, and the lower oil passing plate is arranged between the lower T-shaped beam shield and the lower lining shield; the inside lining is insulating has two, sets up respectively in the left and right sides of iron core.
And the two upper lining shields are overlapped by 75mm at the upper end of the iron core, and the two lower lining shields are overlapped by 75mm at the lower end of the iron core.
The upper lining shield and the lower lining shield are composed of two layers of 1.5mm paperboards, stainless steel metal meshes and polytetrafluoroethylene electric wires, and the bending radiuses of the two layers of 1.5mm paperboards are matched with the voltage grade.
The upper oil passing plate and the lower oil passing plate are formed by sticking 5mm insulating cushion blocks on a 3mm paper board.
The lining insulation is composed of two layers of 2.5mm paperboards, a 3mm cushion block is pasted in the middle, an iron core cooling cushion block is pasted in the innermost layer for 2.5mm, a groove of 100mm is formed in the paperboards in an overlapping mode, the paperboard is 90mm in an overlapping mode, and the bending radius is matched with the voltage grade.
In the using process of the utility model, the upper lining shields of two corners at the upper end of the iron core are lapped at the upper end of the iron core by 75mm, an upper oil-passing plate is arranged between the upper T-shaped beam shield positioned at the upper part of the iron core and the upper lining shield, then an upper insulating plate is arranged, and the grounding wire of the upper lining shield is grounded through the iron core; the lower lining shields of two corners at the lower end of the iron core are lapped at the lower end of the iron core by 75mm, a lower oil passing plate is arranged between the lower T-shaped beam shield at the lower part of the iron core and the lower lining shield, then a lower insulating plate is arranged, and the grounding wire of the lower lining shield is grounded through the iron core; the lining is arranged on the left side and the right side of the iron core in an insulating mode.
The thickness of the upper insulating plate and the lower insulating plate is 3 mm.
The utility model has the beneficial effects that: by arranging the lining shield, the electric field at the corner of the iron core can be effectively relaxed, and the method has wide applicability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: the oil-gas separator comprises an upper lining shield 1, an upper oil through plate 2, a lower lining shield 3, a lower oil through plate 4, an upper insulating plate 5, a lower insulating plate 6, a lining insulator 7, an iron core 8, an upper T-shaped beam shield 9 and a lower T-shaped beam shield 10.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments, which are preferred embodiments of the present invention. It is to be understood that the described embodiments are merely a subset of the embodiments of the utility model, and not all embodiments; it should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A lining shielding structure for a shell type transformer iron core comprises an upper lining shield 1, an upper oil through plate 2, a lower lining shield 3, a lower oil through plate 4 and a lining insulator 7, wherein the number of the upper lining shields 1 is two, and the two lining shields are respectively arranged at two corners at the upper end of an iron core 8, and the number of the lower lining shields 3 is two and respectively arranged at two corners at the lower end of the iron core 8; an upper T-shaped beam shield 9 and a lower T-shaped beam shield 10 are symmetrically arranged at the upper part and the lower part of the iron core 8, the upper ends of the two upper lining shields 1 of the iron core 8 are lapped by 75mm, and an upper oil through plate 2 is arranged between the upper lining shield 1 and the upper T-shaped beam shield 9; the two lower lining shields 3 are overlapped by 75mm at the lower end of the iron core 8, and the lower oil through plate 4 is arranged between the lower T-shaped beam shield 10 and the lower lining shield; the two lining insulators 7 are respectively arranged at the left side and the right side of the iron core 8.
The upper lining shield 1 and the lower lining shield 3 are composed of two layers of 1.5mm paperboards, stainless steel metal meshes and polytetrafluoroethylene electric wires, and the bending radiuses of the two layers of 1.5mm paperboards are matched with the voltage grades.
The upper oil through plate 2 and the lower oil through plate 4 are formed by adhering 5mm insulating cushion blocks to 3mm paperboards.
The lining insulation 7 is composed of two layers of 2.5mm paperboards, a cushion block of 3mm is pasted in the middle, an iron core cooling cushion block of 2.5mm is pasted in the innermost layer, a groove of 100mm is formed in the paperboards in an overlapping mode, the paperboard is 90mm in an overlapping mode, and the bending radius is matched with the voltage grade.
In the using process of the utility model, the upper lining shields of two corners at the upper end of the iron core are lapped at the upper end of the iron core by 75mm, an upper oil-passing plate is arranged between the upper T-shaped beam shield positioned at the upper part of the iron core and the upper lining shield, then an upper insulating plate is arranged, and the grounding wire of the upper lining shield is grounded through the iron core; the lower lining shields of two corners at the lower end of the iron core are lapped at the lower end of the iron core by 75mm, a lower oil passing plate is arranged between the lower T-shaped beam shield at the lower part of the iron core and the lower lining shield, then a lower insulating plate is arranged, and the grounding wire of the lower lining shield is grounded through the iron core; the lining is arranged on the left side and the right side of the iron core in an insulating mode.
The thickness of the upper insulating plate 5 and the lower insulating plate 6 is 3 mm.
Claims (3)
1. The utility model provides a shell type transformer is inside lining shielding structure for iron core which characterized in that: the iron core shielding structure comprises an upper lining shield (1), an upper oil passing plate (2), a lower lining shield (3), a lower oil passing plate (4) and lining insulation (7), wherein the number of the upper lining shield (1) is two, the upper lining shield is respectively arranged at two corners at the upper end of an iron core (8), the number of the lower lining shield (3) is two, and the lower lining shield is respectively arranged at two corners at the lower end of the iron core (8); an upper T-shaped beam shield (9) and a lower T-shaped beam shield (10) are symmetrically arranged at the upper part and the lower part of the iron core (8), two upper lining shields (1) are lapped at the upper end of the iron core (8), and an upper oil through plate (2) is arranged between the upper lining shield (1) and the upper T-shaped beam shield (9); the two lower lining shields (3) are lapped at the lower end of the iron core (8), and the lower oil passing plate (4) is arranged between the lower T-shaped beam shield (10) and the lower lining shields (3); the number of the lining insulators (7) is two, and the lining insulators are respectively arranged on the left side and the right side of the iron core (8).
2. The lining shielding structure for the shell-type transformer core according to claim 1, wherein: the upper lining shield (1) and the lower lining shield (3) are composed of two layers of 1.5mm paperboards, stainless steel metal nets and polytetrafluoroethylene electric wires, and the bending radiuses of the two layers of 1.5mm paperboards are matched with the voltage grade.
3. The lining shielding structure for the shell-type transformer core according to claim 1, wherein: the upper oil passing plate (2) and the lower oil passing plate (4) are formed by adhering 5mm insulating cushion blocks to 3mm paperboards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579153.4U CN216250366U (en) | 2021-10-26 | 2021-10-26 | Lining shielding structure for shell type transformer iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579153.4U CN216250366U (en) | 2021-10-26 | 2021-10-26 | Lining shielding structure for shell type transformer iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216250366U true CN216250366U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122579153.4U Active CN216250366U (en) | 2021-10-26 | 2021-10-26 | Lining shielding structure for shell type transformer iron core |
Country Status (1)
| Country | Link |
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| CN (1) | CN216250366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113948298A (en) * | 2021-10-26 | 2022-01-18 | 保定保菱变压器有限公司 | Lining shielding structure for shell type transformer core and mounting method |
-
2021
- 2021-10-26 CN CN202122579153.4U patent/CN216250366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113948298A (en) * | 2021-10-26 | 2022-01-18 | 保定保菱变压器有限公司 | Lining shielding structure for shell type transformer core and mounting method |
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