CN116504511A - SCOTT transformer M becomes 4U type high tension winding structure - Google Patents
SCOTT transformer M becomes 4U type high tension winding structure Download PDFInfo
- Publication number
- CN116504511A CN116504511A CN202310691021.1A CN202310691021A CN116504511A CN 116504511 A CN116504511 A CN 116504511A CN 202310691021 A CN202310691021 A CN 202310691021A CN 116504511 A CN116504511 A CN 116504511A
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- winding
- units
- transformer
- shaped
- windings
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Links
- 238000004804 winding Methods 0.000 title claims abstract description 134
- 238000009413 insulation Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000013021 overheating Methods 0.000 abstract description 5
- 230000005684 electric field Effects 0.000 abstract description 4
- 230000008092 positive effect Effects 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/346—Preventing or reducing leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/303—Clamping coils, windings or parts thereof together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
Abstract
The invention relates to a 4U-shaped high-voltage winding structure of an SCOTT transformer M transformer, and belongs to the technical field of transformers. The technical proposal is as follows: the high-voltage winding component of M transformer is divided into four units, each unit is of an inner-outer U-shaped structure, the windings are arranged in 2X 2U-shaped units along the axial direction and the radial direction, all the units are led out from the winding end, and the units are connected up and down and left and right in a crossing way after being led out. The invention has the positive effects that: the requirement of impedance design is met, the condition that the original structure needs to be connected with an outgoing line in the middle of high voltage is avoided, the electric field distribution at the position is improved, the insulation distance is reduced, the magnetic leakage distribution of the winding can be optimized, the short-circuit force of the winding is reduced, and the bad phenomenon of local overheating of the winding is prevented; not only can the consumable cost of the product be effectively reduced, but also the safety and reliability of the product can be improved, and the performance index of the product can be improved.
Description
Technical Field
The invention relates to a 4U-shaped high-voltage winding structure of an SCOTT transformer M, in particular to a SCOTT transformer (Scott transformer) with higher voltage, and belongs to the technical field of transformers.
Background
The M-transformer (Main) high-voltage winding of the high-voltage SCOTT transformer has an inner layer and an outer layer which are connected in a cross way in the middle of the winding because of impedance design requirements. The cross-connection part is distorted due to electric field, so that a large space is required to be reserved in the axial direction and the radial direction of the winding to ensure the insulation distance of the winding, and complex insulation treatment is carried out on the position. However, if the high-voltage winding is higher in voltage, if the structure is still adopted, the space channel position occupies too much winding reactance height, uneven winding ampere turn distribution is caused, winding short-circuit electric power is increased, transverse eddy current loss in a winding conductor is increased, and therefore the short-circuit resistance of a product is reduced, and the adverse phenomenon of local overheating of the winding is reduced.
Disclosure of Invention
The invention aims to provide a 4U-shaped high-voltage winding structure of an SCOTT transformer M, which not only meets the requirement of impedance design, avoids the condition that the original structure needs to be connected with an outgoing line in the middle of high voltage, improves the electric field distribution at the position, reduces the insulation distance, but also can optimize the magnetic leakage distribution of a winding, reduce the short-circuit force of the winding and prevent the bad phenomenon of local overheating of the winding; not only can effectively reduce the consumable cost of the product, but also can improve the safety and reliability of the product and the performance index thereof, and solves the technical problems existing in the prior art.
The technical scheme of the invention is as follows:
A4U-shaped high-voltage winding structure of an SCOTT transformer M transformer divides the high-voltage winding component of the M transformer into four units, each unit is of an inner-outer two-layer U-shaped structure, windings are axially and radially arranged with 2X 2U-shaped units, all the units are led out from the end of the windings and are connected in an up-down and left-right cross manner after being led out; all winding units of the high-voltage winding are concentric with the center of the iron core column in the circumferential direction, are arranged radially inwards and outwards, and have consistent central height in the axial direction and consistent reactance height.
The high-voltage winding component is divided into four units which are all of double-layer U-shaped winding structures, each winding unit is wound from the end part of the inner winding, continuous or spiral winding wires are selected according to the number of turns of the winding, winding wires pass through the outer winding from inside to outside after being wound from the end part to the middle part of the winding along the axial direction, and then are wound from the middle part of the winding to the end part of the winding along the axial direction until the winding wires are led out.
After four windings are wound by the same method, the windings are respectively sleeved in the axial direction and the radial direction, an insulating paper tube is sleeved between the inner layer winding and the outer layer winding of each winding unit, an insulating paper tube is sleeved between the winding units and the units, and middle ends are arranged between the upper units and the lower units for insulation; finally, the wires led out from the winding end are used as cross connection by leads.
The invention ensures that the turns of four unit windings are equal and the wire gauges of the wires are consistent from the aspect of electrical design, thus ensuring that the heights of the unit reactance after winding are equal to the size of the unit reactance in the width direction, ensuring that the ampere turn distribution of the windings is as uniform as possible, optimizing the magnetic leakage distribution of the windings, reducing the short-circuit force of the windings and preventing the bad phenomenon of local overheating of the windings. The invention can effectively reduce the consumable cost of the product, can also improve the safety and reliability of the product and improve the performance index of the product.
The invention solves the problem that the spacing distance is too large because of the insulation distance when the M-shaped high-voltage windings of the high-voltage SCOTT transformer are connected in a crossed way in the middle of the windings. The structure is not only suitable for M-shaped transformer windings of SCOTT transformers with high voltage, but also suitable for transformer windings with similar cross connection structures.
The invention has the positive effects that: the requirement of impedance design is met, the condition that the original structure needs to be connected with an outgoing line in the middle of high voltage is avoided, the electric field distribution at the position is improved, the insulation distance is reduced, the magnetic leakage distribution of the winding can be optimized, the short-circuit force of the winding is reduced, and the bad phenomenon of local overheating of the winding is prevented; not only can the consumable cost of the product be effectively reduced, but also the safety and reliability of the product can be improved, and the performance index of the product can be improved.
Drawings
FIG. 1 is a schematic diagram of the winding connection of the present invention;
FIG. 2 is a cross-sectional view of a winding structure according to an embodiment of the present invention;
in the figure: the winding comprises an upper layer winding, a lower layer winding, an upper layer winding, a lower layer winding, an outer lead 5, an insulating paper tube 6 and a middle end 7.
Detailed Description
The invention is further described by way of examples with reference to the accompanying drawings.
A4U-shaped high-voltage winding structure of an SCOTT transformer M transformer divides the high-voltage winding component of the M transformer into four units, each unit is of an inner-outer two-layer U-shaped structure, windings are axially and radially arranged with 2X 2U-shaped units, all the units are led out from the end of the windings and are connected in an up-down and left-right cross manner after being led out; all winding units of the high-voltage winding are concentric with the center of the iron core column in the circumferential direction, are arranged radially inwards and outwards, and have consistent central height in the axial direction and consistent reactance height.
The high-voltage winding component is divided into four units which are all of double-layer U-shaped winding structures, each winding unit is wound from the end part of the inner winding, continuous or spiral winding wires are selected according to the number of turns of the winding, winding wires pass through the outer winding from inside to outside after being wound from the end part to the middle part of the winding along the axial direction, and then are wound from the middle part of the winding to the end part of the winding along the axial direction until the winding wires are led out.
After four windings are wound by the same method, the windings are respectively sleeved in the axial direction and the radial direction, an insulating paper tube is sleeved between the inner layer winding and the outer layer winding of each winding unit, an insulating paper tube is sleeved between the winding units and the units, and middle ends are arranged between the upper units and the lower units for insulation; finally, the wires led out from the winding end are used as cross connection by leads.
In an embodiment, as shown in fig. 1. The high-voltage winding component of the M transformer is divided into an upper inner winding 1, an upper outer winding 2, a lower inner winding 3 and a lower outer winding 4, four units are all of an inner-outer U-shaped structure, all units are outgoing wires at the end parts of the windings, and the units are connected in a cross mode through an external lead 5 after being led out.
As shown in fig. 2. All winding units are concentric with the center of the iron core column in the circumferential direction, are radially arranged inside and outside, have consistent central height in the axial direction and have consistent reactance height. The four winding units are all of double-layer U-shaped winding structures, and the winding wires are led out from the end parts and then are externally connected in a cross manner by using external leads 5. Insulating paper cylinders 6 are sleeved between the inner layer winding and the outer layer winding and between winding units, and middle end insulation 7 is arranged between the upper unit and the lower unit.
Claims (3)
1. The utility model provides a 4U type high voltage winding structure that SCOTT transformer M becomes which characterized in that: dividing the high-voltage winding component of the M transformer into four units, wherein each unit is of an inner-outer U-shaped structure, the windings are arranged in 2X 2U-shaped units along the axial direction and the radial direction, and all the units are led out from the end of the windings and are connected in an up-down and left-right cross manner after being led out; all winding units of the high-voltage winding are concentric with the center of the iron core column in the circumferential direction, are arranged radially inwards and outwards, and have consistent central height in the axial direction and consistent reactance height.
2. The 4U-shaped high voltage winding structure of an SCOTT transformer M-transformer of claim 1, wherein: the high-voltage winding component is divided into four units which are all of double-layer U-shaped winding structures, each winding unit is wound from the end part of the inner winding, continuous or spiral winding wires are selected according to the number of turns of the winding, winding wires pass through the outer winding from inside to outside after being wound from the end part to the middle part of the winding along the axial direction, and then are wound from the middle part of the winding to the end part of the winding along the axial direction until the winding wires are led out.
3. The 4U-shaped high voltage winding structure of an SCOTT transformer M-transformer of claim 1, wherein: after four windings are wound by the same method, the windings are respectively sleeved in the axial direction and the radial direction, an insulating paper tube is sleeved between the inner layer winding and the outer layer winding of each winding unit, an insulating paper tube is sleeved between the winding units, and middle ends are arranged between the upper unit and the lower unit for insulation; finally, the wires led out from the winding end are used as cross connection by leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310691021.1A CN116504511A (en) | 2023-06-12 | 2023-06-12 | SCOTT transformer M becomes 4U type high tension winding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310691021.1A CN116504511A (en) | 2023-06-12 | 2023-06-12 | SCOTT transformer M becomes 4U type high tension winding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116504511A true CN116504511A (en) | 2023-07-28 |
Family
ID=87318562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310691021.1A Pending CN116504511A (en) | 2023-06-12 | 2023-06-12 | SCOTT transformer M becomes 4U type high tension winding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116504511A (en) |
-
2023
- 2023-06-12 CN CN202310691021.1A patent/CN116504511A/en active Pending
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