CN218482085U - Axial six-division wire outlet structure of medium and low voltage coil of oil-immersed phase-shifting transformer - Google Patents
Axial six-division wire outlet structure of medium and low voltage coil of oil-immersed phase-shifting transformer Download PDFInfo
- Publication number
- CN218482085U CN218482085U CN202222541208.7U CN202222541208U CN218482085U CN 218482085 U CN218482085 U CN 218482085U CN 202222541208 U CN202222541208 U CN 202222541208U CN 218482085 U CN218482085 U CN 218482085U
- Authority
- CN
- China
- Prior art keywords
- coil
- winding
- phase
- shifting
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The oil immersed type phase-shifting transformer low-voltage coil axial six-division line outlet structure is characterized in that a low-voltage coil and a low-voltage phase-shifting coil are axially and six-divided, the low-voltage coil and the low-voltage phase-shifting coil of the transformer are internally arranged, the high-voltage coil of the transformer is externally arranged, the low-voltage coil and the low-voltage phase-shifting coil comprise a first coil, a second coil, a third coil, a fourth coil, a fifth coil and a sixth coil, the low-voltage coil and the phase-shifting coil are internally arranged, the high-voltage external scheme is adopted, the low-voltage coil is axially and six-divided, three groups of low-voltage coils and phase-shifting coils at the upper part are upwards led out from different gears through copper foils, three groups of low-voltage coils and phase-shifting coils at the lower part are downwards led out from different gears through copper foils, the low-voltage inner coils are welded with copper foils after winding is finished, then continuously wound around the low-voltage outer coils, and the copper foils are welded after winding is finished, and are led out from different gears according to drawings.
Description
Technical Field
The technical field of low-voltage coil outgoing line structures is provided, and particularly relates to an axial six-branch outgoing line structure of a low-voltage coil in an oil-immersed phase-shifting transformer.
Background
The Siemens GH150 frequency converter is suitable for various fields such as petroleum and natural gas, metallurgy, chemical industry, steel and the like, and is increasingly applied to various occasions such as compressors, blowers, rolling mills, conveying belts, fans, pumps and the like. The GH150 frequency converter develops towards the directions of high power and large current gradually, higher requirements are provided for a frequency conversion transformer on the power supply side of the frequency converter, the original dry type frequency conversion transformer is difficult to meet the requirements of higher power and larger current, and the development of a high-capacity oil-immersed one-to-six 36-pulse phase-shifting frequency conversion transformer is very important.
The conventional oil-immersed phase-shifting frequency conversion transformer is of a one-to-two or one-to-three structure, and a high-voltage coil basically has no tapping gear. The 35kV high-voltage coil is of a one-to-six structure, and a five-gear tapping lead-out is further arranged on the 35kV high-voltage coil. The single 36-pulse ZTSF-24000/35 plus or minus 2 x 2.5%/6 x 2.2 phase-shifting frequency conversion transformer (the connection group: dd0+5 degree Dd0-25 degree Dd0-15 degree Dd0+25 degree Dd0-5 degree) belongs to the blank of the industry, and is the first case in China. The key point of the invention is to solve the following problems according to the existing production equipment and process conditions of the company: the 6 low-voltage and low-voltage phase shifting coils adopt a built-in structure and a head end and tail end leading-out structure of an axial six-split structure.
In the prior art, a high-voltage coil is internally arranged, a low-voltage coil is externally arranged, and low-voltage and phase shifting coil leading-out is facilitated. However, the high-voltage coil and the tapping head are very troublesome to lead out, especially in a high-voltage three-split or six-split structure, the distance from the high-voltage coil to the iron core is increased, and the cost is further increased.
SUMMERY OF THE UTILITY MODEL
The axial six-split outlet structure of the low-voltage coil in the oil-immersed phase-shifting transformer adopts a scheme that the low-voltage coil and the phase-shifting coil are internally arranged and the high-voltage coil is externally arranged, the low-voltage coil is axially six-split, three groups of low-voltage coils and phase-shifting coils at the upper part are upwards led out from different gears through copper foils, and three groups of low-voltage coils and phase-shifting coils at the lower part are downwards led out from different gears through copper foils.
The low-voltage coil and the low-voltage phase shifting coil are axially split in six directions, the low-voltage coil and the low-voltage phase shifting coil of the transformer are arranged in the transformer, the high-voltage coil of the transformer is arranged externally, the low-voltage phase shifting coil of the low-voltage coil machine comprises a first coil, a second coil, a third coil, a fourth coil, a fifth coil and a sixth coil, outgoing lines of the first coil, the second coil and the third coil face upwards, and outgoing lines of the fourth coil, the fifth coil and the sixth coil face downwards.
The low-voltage coil and the phase shifting coil are arranged in the machine, the high-voltage external scheme is adopted, the low-voltage coil is axially split into six parts, the upper three groups of low-voltage coils and the phase shifting coil are upwards led out from different gears through copper foils, the lower three groups of low-voltage coils and the phase shifting coil are downwards led out from different gears through copper foils, the low-voltage inner coil is welded with the copper foils after the winding is finished to reserve leading-out positions, and then the low-voltage outer coil is continuously wound.
After the winding of the low-voltage outer-layer coil is finished, copper foil is welded and led out from different gears according to a drawing, and because the gears of the coil are arc-shaped, the clear distance between the gears is 90mm long, and the gap between the gears is 21mm; handling can be very difficult if improper copper foil dimensions are used. And (4) performing trial-and-manufacture comparison for many times, and finally selecting the copper foil with the maximum width of 40 mm. If the copper foil with a larger cross section is selected due to too large current, 2 copper foils with the width of 30mm or three copper foils in a delta shape can be selected for use.
The first coil comprises a first coil main winding, a first coil phase-shifting winding and a first coil outgoing line, the first coil main winding is arranged on the inner side of the first coil, the first coil phase-shifting winding is arranged on the outer side of the first coil, the first coil outgoing line is upwards led out from the left end of the first coil, the first coil main winding is a right-hand winding, and the first coil phase-shifting winding is a left-hand winding.
The second coil includes second coil main winding, second coil phase shift winding and second coil lead-out wire, second coil main winding establish the outside at the second coil, second coil phase shift winding establish the inboard at the second coil, second coil lead-out wire upwards draw out from the second coil inboard, second coil main winding be the left winding, second coil phase shift winding be the right winding.
The third coil comprises a third coil main winding, a third coil phase-shifting winding and a third coil outgoing line, the third coil main winding is arranged on the inner side of the third coil, the third coil phase-shifting winding is arranged on the outer side of the second coil, the third coil outgoing line is upwards led out from the inner side of the third coil, the third coil main winding is a right-hand winding, and the third coil phase-shifting winding is a left-hand winding.
The fourth coil includes fourth coil main winding, fourth coil phase-shifting winding and fourth coil lead-out wire, fourth coil main winding establish the inboard at the fourth coil, the fourth coil phase-shifting winding establish the outside at the fourth coil, fourth coil lead-out wire draw forth downwards from the fourth coil inboard, fourth coil main winding be left side winding, fourth coil phase-shifting winding be right side winding.
The fifth coil includes fifth coil main winding, fifth coil phase shift winding and fifth coil lead-out wire, fifth coil main winding establish in the outside of fifth coil, fifth coil phase shift winding establish the inboard at the fifth coil, fifth coil lead-out wire draw forth from the fifth coil inboard downwards, fifth coil main winding be the right side winding, fifth coil phase shift winding be the left side winding.
The sixth coil comprises a sixth coil main winding, a sixth coil phase-shifting winding and a sixth coil outgoing line, the sixth coil main winding is arranged on the inner side of the sixth coil, the sixth coil phase-shifting winding is arranged on the outer side of the sixth coil, the sixth coil outgoing line is downwards led out from the inner side of the sixth coil, the sixth coil main winding is a left-hand winding, and the sixth coil phase-shifting winding is a right-hand winding.
Has the beneficial effects that:
the scheme is that a low-voltage coil and a phase-shifting coil are internally arranged, and a high-voltage external scheme is adopted, wherein the low-voltage coil is axially divided into six parts, three groups of upper low-voltage coils and three groups of upper phase-shifting coils are upwards led out from different gears through copper foils, three groups of lower low-voltage coils and three groups of phase-shifting coils are downwards led out from different gears through copper foils, the low-voltage internal coil is welded with copper foils to reserve lead-out positions after winding is completed, then the low-voltage external coil is continuously wound, the copper foils are welded after the winding of the low-voltage external coil is finished, and are led out from different gears according to a drawing, and because the coil gears are arc-shaped, the clear distance between the gears is 90mm, and the gap between the gears is 21mm; handling can be very difficult if improper copper foil dimensions are used. And (4) performing trial-and-manufacture comparison for many times, and finally selecting the copper foil with the maximum width of 40 mm. If the copper foil with a larger cross section is selected due to too large current, 2 copper foils with the width of 30mm or three copper foils in a delta shape can be selected for use.
Drawings
FIG. 1 is a schematic diagram of a first coil and a second coil of an axial six-branch line structure of a low-voltage coil in an oil-immersed phase-shifting transformer;
FIG. 2 is a schematic diagram of a third coil and a fourth coil of an axial six-branch line structure of a low-voltage coil in an oil-immersed phase-shifting transformer;
FIG. 3 is a schematic diagram of a fifth coil and a sixth coil of an axial six-division line structure of a low-voltage coil in an oil-immersed phase-shifting transformer;
in the figure; 1. a first coil, 11, a first coil main winding, 12, a first coil phase-shift winding, 13, a first coil outgoing line, 2, a second coil, 21, a second coil phase-shift winding, 22, a second coil main winding, 23, a second coil outgoing line, 3, a third coil, 31, a third coil main winding, 32, a third coil phase-shift winding, 33, a third coil outgoing line, 4, a fourth coil, 41, a fourth coil main winding, 42, a fourth coil phase-shift winding, 43, a fourth coil outgoing line, 5, a fifth coil, 51, a fifth coil phase-shift winding, 52, a fifth coil main winding, 53, a fifth coil outgoing line, 6, a sixth coil, 61, a sixth coil main winding, 62, a sixth coil phase-shift winding, 63, a sixth coil outgoing line.
Detailed Description
For the purpose of enhancing understanding of the present disclosure, the following detailed description is given with reference to the examples and the accompanying drawings, which are provided for illustration purposes only and do not limit the scope of the present disclosure.
The coil comprises a first coil 1, a first coil main winding 11, a first coil phase-shift winding 12, a first coil outgoing line 13, a second coil 2, a second coil phase-shift winding 21, a second coil main winding 22, a second coil outgoing line 23, a third coil 3, a third coil main winding 31, a third coil phase-shift winding 32, a third coil outgoing line 33, a fourth coil 4, a fourth coil main winding 41, a fourth coil phase-shift winding 42, a fourth coil outgoing line 43, a fifth coil 5, a fifth coil phase-shift winding 51, a fifth coil main winding 52, a fifth coil outgoing line 53, a sixth coil 6, a sixth coil main winding 61, a sixth coil phase-shift winding 62 and a sixth coil outgoing line 63.
As shown in fig. 1, 2, 3;
the axial six-split outlet structure of the low-voltage coil in the oil-immersed phase-shifting transformer adopts the axial six-split of the low-voltage coil and the low-voltage phase-shifting coil, the low-voltage coil and the low-voltage phase-shifting coil of the transformer are arranged in the transformer, the high-voltage coil of the transformer is arranged outside the transformer, the low-voltage coil of the low-voltage coil machine comprises a first coil 1, a second coil 2, a third coil 3, a fourth coil 4, a fifth coil 5 and a sixth coil 6, leading-out wires of the first coil 1, the second coil 2 and the third coil 3 are upward, leading-out wires of the fourth coil 4, the fifth coil 5 and the sixth coil 6 are downward, the first coil 1 comprises a first coil main winding 11, a first coil phase-shifting winding 12 and a first coil leading-out wire 13, the first coil main winding 11 is arranged on the inner side of the first coil 1, the first coil phase-shifting winding 12 is arranged on the outer side of the first coil 1, the first coil outgoing line 13 is led out upwards from the inner side of the first coil 1, the first coil main winding 11 is a right-hand winding, the first coil phase shift winding 12 is a left-hand winding, the second coil 2 comprises a second coil main winding 22, a second coil phase shift winding 21 and a second coil outgoing line 23, the second coil main winding 22 is arranged at the outer side of the second coil 2, the second coil phase shift winding 21 is arranged at the inner side of the second coil 2, the second coil outgoing line 23 is led out upwards from the inner side of the second coil 2, the second coil main winding 22 is a left-hand winding, the second coil phase shift winding 21 is a right-hand winding, the third coil 3 comprises a third coil main winding 31, a third coil phase shift winding 32 and a third coil outgoing line 33, the third coil main winding 31 is arranged at the inner side of the third coil 3, the third coil phase-shifting winding 32 is arranged on the outer side of the second coil 2, the third coil outgoing line 33 is led out upwards from the inner side of the third coil 3, the third coil main winding 31 is a right-hand winding, the third coil phase-shifting winding 32 is a left-hand winding, the fourth coil 4 comprises a fourth coil main winding 41, a fourth coil phase-shifting winding 42 and a fourth coil outgoing line 43, the fourth coil main winding 41 is arranged on the inner side of the fourth coil 4, the fourth coil phase-shifting winding 42 is arranged on the outer side of the fourth coil 4, the fourth coil outgoing line 43 is led out downwards from the inner side of the fourth coil 4, the fourth coil main winding 41 is a left-hand winding, the fourth coil phase-shifting winding 42 is a right-hand winding, the fifth coil 5 comprises a fifth coil main winding 52, a fifth coil phase-shifting winding 51 and a fifth coil outgoing line 53, the fifth coil main winding 52 is arranged on the outer side of the fifth coil 5, the fifth coil phase-shifting winding 51 is arranged on the inner side of the fifth coil 5, the sixth coil outgoing line 62 is arranged on the inner side of the sixth coil 62, the sixth coil 62 is arranged on the inner side of the sixth coil 62, and the sixth coil 62.
An implementation example;
the scheme is that a low-voltage coil and a phase-shifting coil are internally arranged, and a high-voltage external scheme is adopted, wherein the low-voltage coil is axially divided into six parts, three groups of upper low-voltage coils and three groups of upper phase-shifting coils are upwards led out from different gears through copper foils, three groups of lower low-voltage coils and three groups of phase-shifting coils are downwards led out from different gears through copper foils, the low-voltage internal coil is welded with copper foils to reserve lead-out positions after winding is completed, then the low-voltage external coil is continuously wound, the copper foils are welded after the winding of the low-voltage external coil is finished, and are led out from different gears according to a drawing, and because the coil gears are arc-shaped, the clear distance between the gears is 90mm, and the gap between the gears is 21mm; handling can be very difficult if improper copper foil dimensions are used. And (4) performing trial-and-manufacture comparison for many times, and finally selecting the copper foil with the maximum width of 40 mm. If the copper foil with a larger section is selected due to too large current, 2 copper foils with the width of 30mm or three copper foils in a delta shape can be selected for use.
The above description is intended only to serve as a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, as any modification, equivalent replacement, or improvement made within the spirit and scope of the present disclosure should be included in the present disclosure.
Claims (7)
1. The oil-immersed phase-shifting transformer medium-low voltage coil axial six-division line structure is characterized in that the low-voltage coil and the low-voltage phase-shifting coil of the transformer are built-in, the high-voltage coil of the transformer is external, the low-voltage coil and the low-voltage phase-shifting coil comprise a first coil, a second coil, a third coil, a fourth coil, a fifth coil and a sixth coil, outgoing lines of the first coil, the second coil and the third coil are upward, and outgoing lines of the fourth coil, the fifth coil and the sixth coil are downward.
2. The oil-immersed phase-shifting transformer medium-low voltage coil axial six-branch line structure of claim 1, wherein the first coil comprises a first coil main winding, a first coil phase-shifting winding and a first coil outgoing line, the first coil main winding is arranged on the inner side of the first coil, the first coil phase-shifting winding is arranged on the outer side of the first coil, the outgoing line at the lower end of the first coil is upwards led out from the inner side of the first coil, the first coil main winding is a right-hand winding, and the first coil phase-shifting winding is a left-hand winding.
3. The oil-immersed phase-shifting transformer medium-low voltage coil axial six-division line structure of claim 1, wherein the second coil comprises a second coil main winding, a second coil phase-shifting winding and a second coil outgoing line, the second coil main winding is arranged on the outer side of the second coil phase-shifting winding, the second coil phase-shifting winding is arranged on the inner side of the second coil, the second coil outgoing line is upwards led out from the inner side of the second coil, the second coil main winding is a left-hand winding, and the second coil phase-shifting winding is a right-hand winding.
4. The oil-immersed phase-shifting transformer middle-low voltage coil axial six-branch line structure according to claim 1, characterized in that the third coil comprises a third coil main winding, a third coil phase-shifting winding and a third coil outgoing line, the third coil main winding is arranged on the inner side of the third coil, the third coil phase-shifting winding is arranged on the outer side of the second coil, the third coil outgoing line is upwards led out from the inner side of the third coil, the third coil main winding is a right-hand winding, and the third coil phase-shifting winding is a left-hand winding.
5. The oil-immersed phase-shifting transformer medium-low voltage coil axial six-branch line structure of claim 1, wherein the fourth coil comprises a fourth coil main winding, a fourth coil phase-shifting winding and a fourth coil outgoing line, the fourth coil main winding is arranged on the inner side of the fourth coil, the fourth coil phase-shifting winding is arranged on the outer side of the fourth coil, the fourth coil outgoing line is downwards led out from the inner side of the fourth coil, the fourth coil main winding is a left-hand winding, and the fourth coil phase-shifting winding is a right-hand winding.
6. The oil-immersed phase-shifting transformer medium-low voltage coil axial six-branch line structure of claim 1, wherein the fifth coil comprises a fifth coil main winding, a fifth coil phase-shifting winding and a fifth coil outgoing line, the fifth coil main winding is arranged on the outer side of the fifth coil, the fifth coil phase-shifting winding is arranged on the inner side of the fifth coil, the fifth coil outgoing line is downwards led out from the inner side of the fifth coil, the fifth coil main winding is a right-hand winding, and the fifth coil phase-shifting winding is a left-hand winding.
7. The oil-immersed phase-shifting transformer medium-low voltage coil axial six-branch line structure according to claim 1, wherein the sixth coil comprises a sixth coil main winding, a sixth coil phase-shifting winding and a sixth coil outgoing line, the sixth coil main winding is arranged on the inner side of the sixth coil, the sixth coil phase-shifting winding is arranged on the outer side of the sixth coil, the sixth coil outgoing line is downwards led out from the inner side of the sixth coil, the sixth coil main winding is a left-hand winding, and the sixth coil phase-shifting winding is a right-hand winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222541208.7U CN218482085U (en) | 2022-09-26 | 2022-09-26 | Axial six-division wire outlet structure of medium and low voltage coil of oil-immersed phase-shifting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222541208.7U CN218482085U (en) | 2022-09-26 | 2022-09-26 | Axial six-division wire outlet structure of medium and low voltage coil of oil-immersed phase-shifting transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218482085U true CN218482085U (en) | 2023-02-14 |
Family
ID=85168664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222541208.7U Active CN218482085U (en) | 2022-09-26 | 2022-09-26 | Axial six-division wire outlet structure of medium and low voltage coil of oil-immersed phase-shifting transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218482085U (en) |
-
2022
- 2022-09-26 CN CN202222541208.7U patent/CN218482085U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1933058B (en) | Method for producing tri-splitting drive rectifier transformer | |
| CN218482085U (en) | Axial six-division wire outlet structure of medium and low voltage coil of oil-immersed phase-shifting transformer | |
| CN106653326A (en) | Valve side lead baffle system insulation structure used for extra-high voltage converter transformer | |
| CN201845649U (en) | Oil-immersed dual-voltage on-load voltage regulating transformer | |
| CN204537815U (en) | Energy-saving oil immersed three dimensional wound core drive rectifier transformer | |
| CN201765932U (en) | Single-phase traction transformer for three-phase VX connection of AT power supply mode | |
| CN216250320U (en) | On-load voltage regulation power transformer for 66kV transformer substation | |
| CN113948287A (en) | Inverse scott wound core transformer | |
| CN214279763U (en) | Axial double-split single-phase dry-type transformer | |
| CN217740317U (en) | Inner winding structure of 110kV transformer | |
| CN204390877U (en) | A kind of coiling transformer framework and transformer thereof | |
| CN2413353Y (en) | Zero-sequence current transformer | |
| CN205692664U (en) | The lap wound secondary coil of current transformer and current transformer | |
| CN2222029Y (en) | Ring core transformer ac electric welding machine | |
| CN202678052U (en) | Transformer | |
| CN115346772A (en) | Oil-immersed 35 kV-level and below single-machine 36-pulse phase-shifting frequency conversion transformer winding arrangement structure | |
| CN216671357U (en) | Inverse scott wound core transformer | |
| CN218676743U (en) | Anti-short-circuit three-dimensional triangular rolled iron core oil-immersed transformer | |
| CN217588649U (en) | Coil structure of high pressure regulating integral type neutral point pressure regulating | |
| CN204390876U (en) | A kind of transformer framework and transformer thereof with screen | |
| CN214410948U (en) | Winding device for reducing partial discharge of high-voltage coil of large dry-type transformer | |
| CN215868939U (en) | Low-leakage-inductance integrated resonant transformer | |
| CN204390875U (en) | A kind of transformer framework and transformer thereof | |
| CN210865853U (en) | Transformer voltage regulating winding structure | |
| CN204390870U (en) | A kind of transformer framework and transformer thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |