CN111540585A - Outlet structure of single-phase converter transformer - Google Patents
Outlet structure of single-phase converter transformer Download PDFInfo
- Publication number
- CN111540585A CN111540585A CN202010511282.7A CN202010511282A CN111540585A CN 111540585 A CN111540585 A CN 111540585A CN 202010511282 A CN202010511282 A CN 202010511282A CN 111540585 A CN111540585 A CN 111540585A
- Authority
- CN
- China
- Prior art keywords
- lifting seat
- angle
- star connection
- outgoing line
- body column
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Abstract
The invention relates to a wire outlet structure of a single-phase converter transformer, belonging to the technical field of transformers. The technical scheme is as follows: the angle connection winding device body column (8) and the star connection winding device body column (9) are arranged along the long axis direction of a transformer oil tank (7), the angle connection winding device body column (8) and the star connection winding device body column (9) are respectively provided with two lead wires, a first lifting seat and a second lifting seat are respectively fixed on a box body of the transformer oil tank (7) corresponding to the two lead wires of the angle connection winding device body column and the two lead wires of the star connection winding device body column, a first angle connection outgoing line sleeve (6) is fixed on the first lifting seat, a second star connection outgoing line sleeve (5) is fixed on the second lifting seat, the two lead wires of the angle connection winding device body column are led out from the first lifting seat and the second angle connection outgoing line sleeve, and the two lead wires of the star connection winding device body column are led out from the second lifting seat and the star connection outgoing line sleeve. The invention has short lead distance, no special requirement on the transformer oil tank, relatively simple structure and easy satisfaction of electrical distance.
Description
Technical Field
The invention relates to a wire outlet structure of a single-phase converter transformer, which is particularly suitable for the single-phase converter transformer with the capacity less than 50MVA and belongs to the technical field of transformers.
Background
The converter transformer is used as core equipment of a high-voltage direct-current transmission system, and not only bears the combined action of alternating voltage and direct voltage in operation, but also bears the action of direct-current polarity reversal voltage at the phase change moment. The conventional converter transformer is generally connected with a power grid by leading out a valve side lead from a transformer body along the back edge to the short shaft side of an oil tank through a valve side sleeve, and is shown in figure 5. The outlet structure has a too long path and needs to span a plurality of electrical components in the oil tank, so that the satisfaction of the electrical insulation distance is a great difficulty, even the size of the oil tank needs to be increased to meet the design requirement, the manufacturing difficulty is high, and the problems of electrical insulation and local overheating of the valve side outlet structure also occur.
On a medium-sized (about 50 MVA) capacity direct current transmission line, a back-to-back square iron core single-phase transformer is used, the iron core of the back-to-back square iron core single-phase transformer is in a square shape, a valve side winding of one column in a transformer body is connected in an angle mode, a valve side winding of the other column is connected in a star mode, and therefore four valve side leads are required to be led out of an oil tank at the same time. If the lead wires are led out from the short shaft side of the oil tank through the valve side lead wires, the electrical distance between the lead wires must be ensured to meet the design requirement, the size of the oil tank needs to be designed to be larger, and the route of the valve side lead wires is not easy to arrange.
Disclosure of Invention
The invention aims to provide an outlet structure of a single-phase converter transformer, which has shorter lead wire distance; the transformer oil tank has no special requirements, the structure is relatively simple, the electrical distance is easy to meet, and the problems existing in the background technology are solved.
The technical scheme of the invention is as follows:
an outlet structure of a single-phase converter transformer comprises a first lifting seat, a second lifting seat, a star connection outlet sleeve, an angle connection outlet sleeve, a transformer oil tank, an angle connection winding body column and a star connection winding body column, wherein the section of the transformer oil tank is rectangular, the angle connection winding body column and the star connection winding body column are arranged along the long axis direction of the transformer oil tank, the angle connection winding body column and the star connection winding body column are respectively provided with two leads, the two leads of the angle connection winding body column and the two leads of the star connection winding body column are respectively positioned at two sides of the long axis of the transformer oil tank and close to the end corner of the transformer oil tank, the first lifting seat and the second lifting seat are respectively fixed on a box body of the transformer oil tank corresponding to the two leads of the angle connection winding body column and the two leads of the star connection winding body column, the first lifting seat is fixed with the angle connection outlet sleeve, the second lifting seat is fixed with the star connection outlet sleeve, two lead wires of the angle connection winding device body column are led out from the lifting seat I and the angle connection outgoing line sleeve, and two lead wires of the star connection winding device body column are led out from the lifting seat II and the star connection outgoing line sleeve.
The first lifting seat comprises an angle joint upper lifting seat and an angle joint lower lifting seat; the second lifting seat comprises a star connection upper lifting seat and a star connection lower lifting seat; the star connection lower lifting seat and the angle connection lower lifting seat are fixed on the transformer oil tank body, the star connection lower lifting seat and the angle connection lower lifting seat are respectively and fixedly provided with a star connection upper lifting seat and an angle connection upper lifting seat, and a star connection outgoing line sleeve and an angle connection outgoing line sleeve are respectively fixed on the star connection upper lifting seat and the angle connection upper lifting seat.
And the star joint lower lifting seat and the angle joint lower lifting seat are respectively fixed on the side surface where the long edge of the transformer oil tank is located.
The two leads of the angle-connected winding device body column comprise an angle-connected upper internal outgoing line and an angle-connected lower internal outgoing line, the angle-connected upper internal outgoing line and the angle-connected lower internal outgoing line are arranged in parallel, one ends of the angle-connected upper internal outgoing line and the angle-connected lower internal outgoing line are connected to the angle-connected winding device body column, and the other ends of the angle-connected upper internal outgoing line and the angle-connected lower internal outgoing line are sequentially led out from an angle-connected lower lifting seat, an angle-connected upper lifting seat and an angle-connected outgoing line sleeve; the two leads of the star connection winding device body column comprise star connection upper internal outgoing lines and star connection lower internal outgoing lines, the star connection upper internal outgoing lines and the star connection lower internal outgoing lines are arranged in parallel, one ends of the star connection upper internal outgoing lines and the star connection lower internal outgoing lines are connected to the star connection winding device body column, and the other ends of the star connection upper internal outgoing lines and the star connection lower internal outgoing lines are sequentially led out from the star connection lower lifting seat, the star connection upper lifting seat and the star connection outgoing line sleeve.
The invention has the beneficial effects that: the lead wire distance of the wire outlet structure is short, no special requirement is required for a transformer oil tank, the structure is relatively simple, the electrical distance is easy to meet, the process is simple, and the cost is saved.
Drawings
FIG. 1 is a side view of an external outlet structure;
FIG. 2 is a top view of an external outlet structure;
FIG. 3 is a top view of an internal outlet structure;
FIG. 4 is a side view of an internal outlet structure;
FIG. 5 is a view of an internal outlet structure of a conventional converter transformer;
in the figure: the transformer oil tank is characterized by comprising a star connection upper lifting seat 1, a star connection lower lifting seat 2, an angle connection upper lifting seat 3, an angle connection lower lifting seat 4, a star connection outgoing line sleeve 5, an angle connection outgoing line sleeve 6, a transformer oil tank 7, an angle connection winding body column 8, a star connection winding body column 9, an angle connection upper internal outgoing line 10, an angle connection lower internal outgoing line 11, a star connection upper internal outgoing line 12, a star connection lower internal outgoing line 13 and a partition plate system 14.
Detailed Description
The invention is further illustrated by way of example in the following with reference to the accompanying drawings.
Referring to the attached drawings 1-4, an outlet structure of a single-phase converter transformer comprises a first lifting seat, a second lifting seat, a star-connected outlet bushing 5, a corner-connected outlet bushing 6, a transformer oil tank 7, a corner-connected winding body column 8 and a star-connected winding body column 9, wherein the section of the transformer oil tank 7 is rectangular, the corner-connected winding body column 8 and the star-connected winding body column 9 are arranged along the long axis direction of the transformer oil tank 7, the corner-connected winding body column 8 and the star-connected winding body column 9 are respectively provided with two leads, the two leads of the corner-connected winding body column 8 and the two leads of the star-connected winding body column 9 are respectively positioned at two sides of the long axis of the transformer oil tank 7 and close to the end corner of the transformer oil tank 7, the first lifting seat and the second lifting seat are respectively fixed on a tank body of the transformer oil tank 7 corresponding to the two leads of the corner-connected winding body column 8 and the two leads of the star-connected winding body column 9, a corner connecting outgoing line sleeve 6 is fixed on the first lifting seat, a star connecting outgoing line sleeve 5 is fixed on the second lifting seat, two lead wires of a corner connecting winding body column 8 are led out from the first lifting seat and the corner connecting outgoing line sleeve 6, and two lead wires of a star connecting winding body column 9 are led out from the second lifting seat and the star connecting outgoing line sleeve 5.
The specific embodiment is as follows:
in this embodiment, the cross-section of the transformer tank 7 is rectangular, the single-phase converter transformer is a back-to-back square iron core single-phase transformer, the iron core of the single-phase converter transformer is formed by combining two iron core columns and two iron core yokes, and is in a square shape, and a net side winding and a valve side winding are sleeved on each iron core column in the square iron core to form the back-to-back square iron core single-phase transformer. When three single-phase converter transformers form a three-phase converter transformer group, a valve side winding of one iron core column in each single-phase converter transformer is connected into a triangular structure, a valve side winding of the other iron core column is connected into a star-shaped structure, and four valve side leads are required to be led out of a transformer oil tank of the single-phase transformer at the same time.
The angle-connection winding body column 8 and the star-connection winding body column 9 are two iron core columns of a square iron core and are arranged along the long axis direction of the transformer oil tank 7, as shown in figure 3.
Referring to the attached drawings 1-4, a second lifting seat on the tank body of the transformer oil tank 7 comprises a star-connection upper lifting seat 1 and a star-connection lower lifting seat 2; the first lifting seat comprises an angle joint upper lifting seat 3 and an angle joint lower lifting seat 4, and the star joint lower lifting seat 2 and the angle joint lower lifting seat 4 are respectively fixed on the side surface where the long edge of the transformer oil tank 7 is located and are close to the end corner, as shown in the attached figures 2 and 3. The star connection upper lifting seat 1 and the angle connection upper lifting seat 3 are respectively fixed on the star connection lower lifting seat 2 and the angle connection lower lifting seat 4, and the star connection outlet sleeve 5 and the angle connection outlet sleeve 6 are respectively fixed on the star connection upper lifting seat 1 and the angle connection upper lifting seat 3.
Referring to fig. 3 and 4, two leads of the angle-connected winding body column 8 comprise an angle-connected upper internal outgoing line 10 and an angle-connected lower internal outgoing line 11, the angle-connected upper internal outgoing line 10 and the angle-connected lower internal outgoing line 11 are arranged side by side, one ends of the angle-connected upper internal outgoing line 10 and the angle-connected lower internal outgoing line 11 are connected to the angle-connected winding body column 8, and the other ends of the angle-connected upper internal outgoing line 10 and the angle-connected lower internal outgoing line 11 are sequentially led out from the angle-connected lower lifting seat 4, the angle-connected upper lifting seat 3 and the angle-connected outgoing line sleeve 6; the two leads of the star connection winding body column 9 comprise a star connection upper internal outlet 12 and a star connection lower internal outlet 13, the star connection upper internal outlet 12 and the star connection lower internal outlet 13 are arranged side by side, one ends of the star connection upper internal outlet 12 and the star connection lower internal outlet 13 are connected to the star connection winding body column 9, and the other ends of the star connection upper internal outlet 12 and the star connection lower internal outlet 13 are sequentially led out from the star connection lower lifting seat 2, the star connection upper lifting seat 1 and the star connection outlet sleeve 5.
The four inner leads are arranged at the corner positions of the end part of the transformer oil tank 7 for ensuring the electrical distance, and the additional oil tank space is not required to be increased. The four lead wires respectively enter the partition plate system 14 and are connected with the tail parts of the corresponding star connection outlet bushing 5 and the corresponding angle connection outlet bushing 6, and are respectively led out of the transformer oil tank 7 through the star connection upper lifting seat 1, the star connection lower lifting seat 2, the angle connection upper lifting seat 3 and the angle connection lower lifting seat 4. The lead wire distance of the wire outlet structure is short, the electrical distance can meet the requirement, the process is simple, and the cost is saved.
Claims (4)
1. The utility model provides a structure of being qualified for next round of competitions of single-phase converter transformer which characterized in that: the transformer oil tank comprises a first lifting seat, a second lifting seat, a star connection outgoing line sleeve (5), a corner connection outgoing line sleeve (6), a transformer oil tank (7), a corner connection winding body column (8) and a star connection winding body column (9), wherein the cross section of the transformer oil tank (7) is rectangular, the corner connection winding body column (8) and the star connection winding body column (9) are arranged along the long axis direction of the transformer oil tank (7), the corner connection winding body column (8) and the star connection winding body column (9) are respectively provided with two leads, the two leads of the corner connection winding body column (8) and the two leads of the star connection winding body column (9) are respectively positioned on two sides of the long axis of the transformer oil tank (7) and are close to the end corner of the transformer oil tank (7), the first lifting seat and the second lifting seat are respectively fixed on a tank body of the transformer oil tank (7) corresponding to the two leads of the corner connection winding body column (8) and the star connection winding body column (9), an angle connection outgoing line sleeve (6) is fixed on the first lifting seat, a star connection outgoing line sleeve (5) is fixed on the second lifting seat, two lead wires of the angle connection winding device body column (8) are led out from the first lifting seat and the angle connection outgoing line sleeve (6), and two lead wires of the star connection winding device body column (9) are led out from the second lifting seat and the star connection outgoing line sleeve (5).
2. The outgoing line structure of the single-phase converter transformer according to claim 1, wherein: the first lifting seat comprises an angle joint upper lifting seat (3) and an angle joint lower lifting seat (4); the second lifting seat comprises a star connection upper lifting seat (1) and a star connection lower lifting seat (2); the star connection lower lifting seat (2) and the angle connection lower lifting seat (4) are fixed on a box body of a transformer oil tank (7), the star connection lower lifting seat (2) and the angle connection lower lifting seat (4) are respectively and fixedly provided with a star connection upper lifting seat (1) and an angle connection upper lifting seat (3), and a star connection outgoing line sleeve (5) and an angle connection outgoing line sleeve (6) are respectively fixed on the star connection upper lifting seat (1) and the angle connection upper lifting seat (3).
3. The outgoing line structure of the single-phase converter transformer according to claim 2, wherein: the star joint lower lifting seat (2) and the angle joint lower lifting seat (4) are respectively fixed on the side surface where the long edge of the transformer oil tank (7) is located.
4. The outgoing line structure of the single-phase converter transformer according to claim 2, wherein: the two leads of the angle-connected winding body column (8) comprise an angle-connected upper internal outgoing line (10) and an angle-connected lower internal outgoing line (11), the angle-connected upper internal outgoing line (10) and the angle-connected lower internal outgoing line (11) are arranged side by side, one ends of the angle-connected upper internal outgoing line (10) and the angle-connected lower internal outgoing line (11) are connected to the angle-connected winding body column (8), and the other ends of the angle-connected upper internal outgoing line (10) and the angle-connected lower internal outgoing line (11) are sequentially led out from the angle-connected lower lifting seat (4), the angle-connected upper lifting seat (3) and the angle-connected outgoing line sleeve (6); the star connection winding device body column comprises a star connection upper internal outlet wire (12) and a star connection lower internal outlet wire (13), the star connection upper internal outlet wire (12) and the star connection lower internal outlet wire (13) are arranged in parallel, one ends of the star connection upper internal outlet wire (12) and the star connection lower internal outlet wire (13) are connected to the star connection winding device body column (9), and the other ends of the star connection upper internal outlet wire (12) and the star connection lower internal outlet wire (13) are sequentially led out from a star connection lower lifting seat (2), a star connection upper lifting seat (1) and a star connection outlet wire sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511282.7A CN111540585A (en) | 2020-06-08 | 2020-06-08 | Outlet structure of single-phase converter transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511282.7A CN111540585A (en) | 2020-06-08 | 2020-06-08 | Outlet structure of single-phase converter transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111540585A true CN111540585A (en) | 2020-08-14 |
Family
ID=71976210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010511282.7A Pending CN111540585A (en) | 2020-06-08 | 2020-06-08 | Outlet structure of single-phase converter transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111540585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394004A (en) * | 2021-06-29 | 2021-09-14 | 中铁电气化局集团有限公司 | Transformer oil tank structure with step-shaped lifting seat |
-
2020
- 2020-06-08 CN CN202010511282.7A patent/CN111540585A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113394004A (en) * | 2021-06-29 | 2021-09-14 | 中铁电气化局集团有限公司 | Transformer oil tank structure with step-shaped lifting seat |
| CN113394004B (en) * | 2021-06-29 | 2023-10-03 | 中铁电气化局集团有限公司 | Transformer oil tank structure with stepped lifting seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111540585A (en) | Outlet structure of single-phase converter transformer | |
| CN211957406U (en) | Outlet structure of single-phase converter transformer | |
| CN105679514B (en) | High-power 36 pulse wave oil-immersed and high-voltage variable-frequency transformer | |
| CN206564172U (en) | Multipurpose three-phase transformer | |
| CN208001225U (en) | Wind electric converter | |
| CN103065780A (en) | Three-phase 24 pulse wave double-extended-triangle output winding phase-shifting rectifier transformer | |
| CN212113430U (en) | Multi-split transformer for in-phase power supply | |
| CN202422975U (en) | Low-voltage lead arranging structure of 12 pulse wave rectifier transformer | |
| CN202178138U (en) | Three-split rectifier transformer | |
| CN205487674U (en) | High -power oily formula high -voltage frequency converters transformer winding structure | |
| CN105655105B (en) | High-power oil-immersed and high-voltage variable-frequency transformer winding construction | |
| CN201113810Y (en) | Self-coupling phase-shift double three phase power commutating power supply | |
| CN201868199U (en) | Single-phase traction transformer adopting AT power supply mode | |
| CN207009256U (en) | A kind of single device body low pressure alternating expression arranges 12 pulse wave rectifier transformers | |
| CN110571021A (en) | Single-machine 24-pulse dry-type traction rectifier transformer with double-bridge winding mirror image arrangement | |
| CN211957413U (en) | Balance phase arrangement structure of four-branch balance casing transformer | |
| CN102226972B (en) | Two-column serial wiring structure of network-side coils for converter transformer | |
| CN215342259U (en) | Grounding transformer with secondary winding | |
| CN202487359U (en) | Junction device for two serially connected columns of converter transformer valve-side windings | |
| CN211828432U (en) | Split rectifier transformer | |
| CN211957388U (en) | Single-phase converter transformer body structure | |
| CN2935410Y (en) | Three-phase five-limb double anti-star epoxide resin casting rectification dry-type transformer | |
| CN204927002U (en) | Move phase winding pressure regulating rectifier transformer | |
| CN109741924A (en) | A kind of tractive transformer | |
| CN203812706U (en) | Oil immersion type auto-transformer for motor voltage reduction starting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |