CN210272047U - Linear voltage regulating structure of neutral point of high-voltage body of power transformer - Google Patents
Linear voltage regulating structure of neutral point of high-voltage body of power transformer Download PDFInfo
- Publication number
- CN210272047U CN210272047U CN201921776078.7U CN201921776078U CN210272047U CN 210272047 U CN210272047 U CN 210272047U CN 201921776078 U CN201921776078 U CN 201921776078U CN 210272047 U CN210272047 U CN 210272047U
- Authority
- CN
- China
- Prior art keywords
- voltage
- coil
- voltage coil
- neutral point
- regulating
- 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
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 67
- 230000007935 neutral effect Effects 0.000 title claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000033228 biological regulation Effects 0.000 claims abstract description 19
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011087 paperboard Substances 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000003828 downregulation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003827 upregulation Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model belongs to the technical field of the transformer is made and specifically relates to a transformer voltage regulation structure is related to. A power transformer high-voltage body neutral point linear voltage regulating structure comprises a high-voltage coil body, an insulating end ring, an insulating cylinder, an inner supporting strip and an oil duct cushion block, wherein the neutral point of a high-voltage coil at the lower part of the high-voltage coil body is reversely placed in the middle of the high-voltage coil body, meanwhile, a plurality of voltage regulating section coil copper wires are inserted into the middle of the high-voltage coil body, and the winding directions of a high-voltage coil at the upper part of the high-voltage coil body and a high-voltage coil at the lower part of the high; and the high-voltage coil body and the voltage regulating section coil copper wire jointly form the high-voltage coil. Therefore, the linear adjustment of the high-voltage neutral point can be completed, the pressure adjusting section is placed in the middle of the high-voltage body, and the ampere-turn balance can be adjusted freely only by increasing oil duct cushion blocks at the corresponding position of the low-voltage coil. Because the separate voltage regulating coil is eliminated, the manufacturing cost is reduced, and the production and manufacturing process is simplified.
Description
Technical Field
The utility model belongs to the technical field of the transformer is made and specifically relates to a transformer voltage regulation structure is related to.
Background
High-voltage neutral point voltage regulation is one of the most common modes of an on-load voltage regulation power transformer, and the neutral point voltage regulation in the industry at present mainly comprises neutral point positive and negative regulation and neutral point linear regulation, wherein the neutral point positive and negative regulation is that a voltage regulation coil is independently arranged outside a high-voltage coil, so that the cost is higher; the neutral point linear regulation part is also provided with a voltage regulation coil independently, and the small part is provided with a voltage regulation section at the tail part of the lowest end of high voltage, so that ampere-turn balance is poor, the safety coefficient is low, and the neutral point linear regulation part is rarely adopted in practical application; the neutral point linear adjustment is also characterized in that partial manufacturers adopt high-voltage division and upper and lower two sections of parallel connection, the upper and lower sections of parallel connection are reversely wound, the pressure adjusting section is arranged in the middle of the high voltage, the pressure adjusting difference between the pressure adjusting section and the body section is small, however, the high-voltage coil is artificially changed into the upper and lower parallel connection, the number of the high-voltage sections is greatly increased, the number of oil duct cushion blocks is increased, the actual filling rate of the high-voltage coil is reduced, the cost is increased.
For effectively optimizing the pressure regulating structure, reduce manufacturing cost, simplify the production and make, the utility model discloses on borrowing the reference and not having excitation voltage regulation power transformer high pressure middle part pressure regulating structure basis, develop a novel high pressure body neutral point linear pressure regulating structure.
SUMMERY OF THE UTILITY MODEL
The utility model is not enough to prior art, the utility model provides a power transformer high pressure body neutral point linear voltage regulation structure, place high-tension coil afterbody neutral point in reverse at high-tension coil body middle part, insert several sections voltage regulation section coil copper wire at high-tension coil body middle part simultaneously, on, two sections high-tension coil winds to opposite, independent voltage regulation coil has been cancelled, also need not divide into 2 sections parallel operation to high-tension coil, with conventional high-tension coil section number keep unanimous can, the cost need not increase, only enlarge 10mm oil duct in voltage regulation section and high-tension body juncture and can satisfy electrical distance, hardly have the influence to the cost.
Therefore, the linear adjustment of the high-voltage neutral point can be completed, the pressure adjusting section is placed in the middle of the high-voltage body, and the low-voltage coil only needs to be provided with a plurality of oil duct cushion blocks at the corresponding positions, so that the ampere-turn balance can be freely adjusted.
The utility model adopts the technical proposal that:
a neutral point linear voltage regulating and regulating structure of a high-voltage body of a power transformer comprises a high-voltage coil body, an insulating end ring (3), an insulating cylinder (1), an inner stay bar (2) and an oil duct cushion block (6), wherein a neutral point of a high-voltage coil (52) at the lower part of the high-voltage coil body is reversely placed in the middle of the high-voltage coil body, meanwhile, a plurality of sections of voltage regulating section coil copper wires (4) are inserted into the middle of the high-voltage coil body, and the winding directions of a high-voltage coil (51) at the upper part of the high-voltage coil body and the high-voltage coil (; the high-voltage coil body and the voltage regulating section coil copper wire (4) jointly form a high-voltage coil.
In the neutral point linear voltage regulating structure of the high-voltage body of the power transformer, a high-voltage coil copper conductor and a voltage regulating section coil copper conductor are wound on the same insulating cylinder (1) with an inner stay (2) to form a continuous or cake-shaped wire coil; the cake-shaped wire coils are separated by oil duct cushion blocks (6).
The neutral point linear voltage regulating and adjusting structure of the high-voltage body of the power transformer is characterized in that insulating end rings (3) are arranged at the upper end and the lower end of a high-voltage coil and used for fixing and pressing the coil.
The utility model has the advantages that:
1. the utility model discloses linear pressure regulating structure of power transformer high pressure body neutral point is in the same place former pressure regulating coil and high-pressure coil coiling, adopts this structure can directly get rid of an solitary pressure regulating coil, also need not fall into 2 sections parallel operation to high-pressure coil, with conventional high-pressure coil section number keep unanimous can, the pack rate height in the iron core window, the cost need not increase. The electrical distance can be met only by amplifying the 10mm oil duct at the junction of the voltage regulating section and the high-voltage body, and the cost is hardly influenced. The structural improvement omits the radial dimension of the original voltage regulating coil, simultaneously omits the distance dimension of a main air channel between the original high-voltage coil and the voltage regulating coil, omits a plurality of layers of insulating paper boards between the original high-voltage coil and the voltage regulating coil, and omits the upper and lower insulating end rings of the original voltage regulating coil. The radial radius is reduced, the weight of the coil copper wire of the voltage regulating section is saved, the material consumption is greatly saved, and the cost is reduced.
2. The utility model discloses the linear pressure regulating structure of neutral line of power transformer high pressure body has directly dwindled transformer core size, oil tank overall dimension, reduces silicon steel sheet, steel and transformer oil, insulating board's quantity, greatly reduced manufacturing cost, every saving 10000 ~ 50000 yuan manufacturing expense.
3. The utility model discloses linear pressure regulating structure of power transformer high pressure body neutral point, simple structure, manufacturing is simple, winds a pressure regulating coil less during the coil coiling (including need not to place former pressure regulating coil upper and lower end circle), and the coil suit has also overlapped several layers of insulating paper board between former high pressure and the pressure regulating less, overlaps a pressure regulating coil less, is qualified for the next round of competitions, lead wire simple and conveniently, reduces production cycle greatly, saves the cost of labor.
Drawings
Fig. 1 is a schematic view of a linear pressure regulating structure of a neutral line of the high-pressure body of the present invention;
fig. 2 is a schematic view of a linear section of the high-pressure body neutral line of the present invention;
FIG. 3 is a schematic diagram of the high-voltage body neutral point linear adjustment of the present invention;
fig. 4 is a schematic diagram of the position of the present invention applied to a transformer;
the various reference numbers in the figures represent meanings: 1. the high-voltage coil comprises an insulating cylinder, 2, an inner supporting strip, 3, an insulating end ring, 4, a pressure regulating section coil copper wire, 51, a high-voltage coil body upper high-voltage coil, 52, a high-voltage coil body lower high-voltage coil, 6 and an oil duct cushion block.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings by the following detailed description.
Example 1
Referring to fig. 1, the utility model discloses linear pressure regulating structure of power transformer high pressure body neutral point, including high-tension coil body, insulating end ring 3, insulating cylinder 1, interior stay 2 and oil duct cushion 6, place high-tension coil body lower part high-tension coil 52 neutral point in high-tension coil body middle part in reverse, insert several sections pressure regulating section coil copper wire 4 at high-tension coil body middle part simultaneously, high-tension coil body upper portion high-tension coil 51 and high-tension coil body lower part high-tension coil 52 wind to opposite. The high-voltage coil body (including the upper high-voltage coil 51 and the lower high-voltage coil 52) and the voltage-regulating section coil copper wire 4 jointly form a high-voltage coil. As shown in figure 1, the oil passage is only increased from the original 9.5mm to 19.5mm at the junction of the pressure regulating section and the body section, the cost of a main transformer with the value of 6300kVA/35kV and above five, sixty thousand or even millions is only increased by dozens of pieces, and almost no influence is caused on the cost. Fig. 2 and 3 show the specific structure of the coil section and the coil connection schematic diagram more intuitively, including the actual pressure regulating section placement position and the high-voltage upper and lower section rewinding connection.
An independent pressure regulating coil is omitted, so that high-voltage neutral point linear regulation can be completed, the pressure regulating section is placed in the middle of the high-voltage body, the low-voltage coil only needs to amplify the oil duct cushion block at the position of the corresponding height of the pressure regulating section of the high-voltage body, and ampere-turn balance between high voltage and low voltage can be freely adjusted, and the safety coefficient of products is guaranteed.
Example 2
The difference between the neutral point linear voltage regulating structure of the high-voltage body of the power transformer in the embodiment and the embodiment 1 is that: the high-voltage coil copper wire and the voltage regulating section coil copper wire are wound on the same insulating cylinder 1 with an inner supporting strip 2 to form a continuous or cake-shaped wire coil; the cake-shaped wire coils are separated by oil duct cushion blocks 6.
The utility model discloses the linear pressure regulating structure that adjusts of power transformer high pressure body neutral point, insulating end ring 3 sets up at the upper and lower end of high-voltage coil for fixed, compress tightly the coil. The oil duct cushion blocks are used for separating each coil plate and play roles in oil guiding, heat dissipation and insulation.
Example 3
See fig. 1-4. The utility model discloses a novel high pressure body neutral point linear pressure regulating structure, including high-voltage coil copper conductor, pressure regulating section coil copper conductor 4, insulating end ring 3, insulating cylinder 1, interior stay 2, oil duct cushion 6.
The high-voltage body neutral point voltage regulating structure is characterized in that a neutral point at the tail part of a high-voltage coil is reversely placed in the middle of the high-voltage coil body, meanwhile, a plurality of sections of voltage regulating section coil copper wires 4 are inserted into the middle of the high-voltage coil body, meanwhile, the winding directions of an upper high-voltage coil 51 and a lower high-voltage coil 52 are opposite, so that the high-voltage neutral point linear regulation can be completed, the voltage regulating section is placed in the middle of the high-voltage coil body, and the ampere-turn balance can be freely adjusted as long as some oil duct cushion blocks are enlarged at.
Fig. 4 is the utility model discloses the position schematic diagram of using on the transformer, transformer from interior to exterior arrange iron core, low tension coil, high-pressure coil, do not have the pressure regulating coil, directly removed an solitary pressure regulating coil, former pressure regulating coil is in the same place with the high-pressure coil coiling, and radial radius reduces, can save pressure regulating section coil copper wire weight and iron core overall dimension. Meanwhile, only the high-voltage coil is arranged at the outermost part, the high-voltage upper and lower outgoing lines and the lead wires, as well as the voltage regulating section outgoing line and the lead wires are very convenient, the high-voltage coil body can be led out to the high-voltage sleeve and the voltage regulating switch directly, and the operation is simple and convenient.
The radial dimension of the original voltage regulating coil is omitted, the distance dimension of a main empty passage between the original high-voltage coil and the voltage regulating coil is also omitted, a plurality of layers of insulating paper boards between the original high-voltage coil and the voltage regulating coil are omitted, insulating end rings above and below the original voltage regulating coil are omitted, the overall dimensions of the transformer iron core and the oil tank are directly reduced, the use amounts of silicon steel sheets, steel materials, transformer oil and insulating paper boards are reduced, the manufacturing cost is greatly reduced, and the manufacturing cost of 10000-50000 yuan is saved for each coil.
Meanwhile, the structure is simple to produce, one pressure regulating coil is wound less during coil winding (including an upper end ring and a lower end ring which are not required to be placed on the original pressure regulating coil), the insulating part between the original high voltage and the pressure regulating coil is sleeved less during coil sleeving, the pressure regulating coil is sleeved less, the outgoing line and the leading line are simple and convenient, the production period is greatly shortened, and the labor cost is saved.
The above embodiments are only used for illustrating the present invention, and should not be construed as limiting the scope of the claims of the present invention. It is anticipated that one skilled in the art may implement the embodiments in varying ways in conjunction with the prior art. Other modifications and equivalents of the technical solution of the present invention, which may occur to those skilled in the art, are also within the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (3)
1. The utility model provides a linear pressure regulating structure that transfers of power transformer high pressure body neutral point, includes high-voltage coil body, insulating end circle (3), insulating cylinder (1), interior brace rod (2) and oil duct cushion (6), its characterized in that: the neutral point of a high-voltage coil (52) at the lower part of the high-voltage coil body is reversely placed in the middle of the high-voltage coil body, meanwhile, a plurality of sections of voltage regulating section coil copper wires (4) are inserted in the middle of the high-voltage coil body, and the winding directions of a high-voltage coil (51) at the upper part of the high-voltage coil body and the high-voltage coil (52) at the lower part of the high-voltage coil body are opposite; the high-voltage coil body and the voltage regulating section coil copper wire (4) jointly form a high-voltage coil.
2. The power transformer high-voltage body neutral point linear voltage regulation structure of claim 1, characterized in that: the high-voltage coil copper conductor and the voltage regulating section coil copper conductor are wound on the same insulating cylinder (1) with an inner stay (2) to form a continuous or cake-type wire coil; the cake-shaped wire coils are separated by oil duct cushion blocks (6).
3. The power transformer high-voltage body neutral point linear voltage regulating structure according to claim 1 or 2, characterized in that: the insulating end rings (3) are arranged at the upper end and the lower end of the high-voltage coil and are used for fixing and pressing the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921776078.7U CN210272047U (en) | 2019-10-22 | 2019-10-22 | Linear voltage regulating structure of neutral point of high-voltage body of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921776078.7U CN210272047U (en) | 2019-10-22 | 2019-10-22 | Linear voltage regulating structure of neutral point of high-voltage body of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272047U true CN210272047U (en) | 2020-04-07 |
Family
ID=70020553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921776078.7U Active CN210272047U (en) | 2019-10-22 | 2019-10-22 | Linear voltage regulating structure of neutral point of high-voltage body of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272047U (en) |
-
2019
- 2019-10-22 CN CN201921776078.7U patent/CN210272047U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207909697U (en) | A kind of transformer non-exciting regulation wire turn structure | |
| CN207663897U (en) | A kind of oil guide structure for forced oil-circulation transformer body | |
| CN202034210U (en) | Dry-type transformer capable of adjusting capacity and voltage | |
| CN210272047U (en) | Linear voltage regulating structure of neutral point of high-voltage body of power transformer | |
| CN208796788U (en) | Four layer screw type loop constructions | |
| CN207165388U (en) | The loop construction of the double transformer with split windings of high voltage | |
| CN201256057Y (en) | Energy-saving winding construction for staggering winding transformer | |
| CN211265176U (en) | Multi-spiral voltage regulating coil and 110kV on-load voltage regulating power transformer | |
| CN205069348U (en) | Iron core single -phase auto -transformer is rolled up to dry -type | |
| CN202003816U (en) | Inverse transformer | |
| CN203706818U (en) | On-load capacity regulating transformer low-voltage wire outlet structure | |
| CN216250320U (en) | On-load voltage regulation power transformer for 66kV transformer substation | |
| CN201549346U (en) | Soft angle ring for transformer | |
| CN103337343A (en) | Novel spiral winding for transformer and winding method thereof | |
| CN201741542U (en) | Helical transformer coil | |
| CN201616328U (en) | Dual-voltage power transformer | |
| CN205508607U (en) | VX and VV wiring general -purpose transformer | |
| CN201262886Y (en) | Tri-loop loaded voltage regulating transformer | |
| CN209388846U (en) | A kind of laminar voltage regulation coil structure | |
| CN209266184U (en) | A kind of high frequency transformer with adjustment of inductance function | |
| CN202816587U (en) | Transformer main insulation structure with singly placed medium-voltage regulating winding | |
| CN207719016U (en) | A kind of high voltage power supply inductance device | |
| CN207425566U (en) | A kind of folding stereo open core no-encapsulated-winding dry-type transformer | |
| CN201838449U (en) | Combined transformer with multiple outputs | |
| CN205645493U (en) | Distribution transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Neutral point linear voltage regulation structure of high voltage body of power transformer Effective date of registration: 20211027 Granted publication date: 20200407 Pledgee: Bank of Communications Ltd. Jiangxi branch Pledgor: JIANGXI PEOPLE POWER TRANSMISSION AND TRANSFORMATION CO.,LTD. Registration number: Y2021980011487 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231205 Granted publication date: 20200407 Pledgee: Bank of Communications Ltd. Jiangxi branch Pledgor: JIANGXI PEOPLE POWER TRANSMISSION AND TRANSFORMATION CO.,LTD. Registration number: Y2021980011487 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Linear voltage regulation structure for neutral point of high-voltage body of power transformer Effective date of registration: 20231212 Granted publication date: 20200407 Pledgee: Bank of Communications Ltd. Jiangxi branch Pledgor: JIANGXI PEOPLE POWER TRANSMISSION AND TRANSFORMATION CO.,LTD. Registration number: Y2023980071285 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |