CN220232912U - Vacuum on-load transformer - Google Patents
Vacuum on-load transformer Download PDFInfo
- Publication number
- CN220232912U CN220232912U CN202321694000.7U CN202321694000U CN220232912U CN 220232912 U CN220232912 U CN 220232912U CN 202321694000 U CN202321694000 U CN 202321694000U CN 220232912 U CN220232912 U CN 220232912U
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- Prior art keywords
- vacuum
- coil
- clamping piece
- load
- changer
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims description 33
- 239000012212 insulator Substances 0.000 claims description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of transformers, in particular to a vacuum on-load transformer, which comprises: the device comprises an iron core, a coil, an upper clamping piece, a lower clamping piece, an upper cushion block, a lower cushion block, a switch support, a vacuum on-load tap changer and a base, wherein the coil is wound on the iron core, the upper clamping piece is arranged at the top of the iron core, the lower clamping piece is arranged at the bottom of the iron core, the switch support is arranged above the upper clamping piece, the vacuum on-load tap changer is arranged on the switch support, the upper cushion block is arranged between the upper clamping piece and the coil, the lower cushion block is arranged between the lower clamping piece and the coil, and a plurality of groups of tap terminals are arranged on the coil. According to the utility model, the vacuum on-load tap-changer is arranged on the top of the transformer by arranging the switch bracket on the upper clamping piece and arranging the vacuum on-load tap-changer on the switch bracket, so that the occupied area of the transformer equipment is reduced.
Description
Technical Field
The utility model belongs to the technical field of transformers, and particularly relates to a vacuum on-load transformer.
Background
A transformer is a device that increases or decreases voltage by applying faraday's law of electromagnetic induction. The transformer generally comprises two or more groups of coils, is mainly used for lifting the voltage of alternating current, changing impedance and separating circuits, is widely applied to electric facilities, and is one of important equipment essential in production and life.
The existing dry vacuum on-load tap-changer is arranged on the front side of the transformer, so that the occupied space of the whole transformer equipment is increased, the transformer equipment is inconvenient to carry and transport, the practicability of the transformer is greatly influenced, and the construction cost of a transformer station is increased.
Disclosure of Invention
The utility model provides a vacuum on-load transformer to solve the technical problems in the background technology. The utility model adopts the following technical scheme: a vacuum on-load transformer comprising: the device comprises an iron core, a coil, an upper clamping piece, a lower clamping piece, an upper cushion block, a lower cushion block, a switch support, a vacuum on-load tap changer and a base, wherein the coil is wound on the iron core, the upper clamping piece is arranged at the top of the iron core, the lower clamping piece is arranged at the bottom of the iron core, the switch support is arranged above the upper clamping piece, the vacuum on-load tap changer is arranged on the switch support, the upper cushion block is arranged between the upper clamping piece and the coil, the lower cushion block is arranged between the lower clamping piece and the coil, and a plurality of groups of tap terminals are arranged on the coil;
the front side of the vacuum on-load tap-changer is provided with a plurality of groups of tap-changer joints corresponding to the tap-changer terminals, and high-voltage lead cables are arranged between the tap-changer terminals and the tap-changer joints which are mutually corresponding and are electrically connected through the high-voltage lead cables.
Further, the coil comprises a high-voltage coil and a low-voltage coil, the high-voltage coil is wound on the outer side of the low-voltage coil, a high-voltage insulator and a low-voltage insulator are arranged on the upper clamping piece, the high-voltage insulator and the low-voltage insulator are respectively located on two sides of the iron core, the high-voltage insulator is electrically connected with the high-voltage coil through a high-voltage lead copper bar, and the low-voltage insulator is electrically connected with the low-voltage coil through a low-voltage lead copper bar.
Further, a heat radiation fan is arranged on the lower clamping piece.
Further, the coils are provided with three coils to form three-phase windings, each phase of the three-phase windings is connected end to end, the head end of the first-phase winding is connected with the tail end of the third-phase winding, the head end of the second-phase winding is connected with the tail end of the first-phase winding, and the head end of the third-phase winding is connected with the tail end of the second-phase winding.
Further, the head and the tail of each phase of the three-phase winding are connected through a connecting rod.
Further, the vacuum on-load tap-changer is provided with a controller, and the controller can communicate different tap-off terminals for controlling the vacuum on-load tap-changer so as to realize on-load voltage regulation of the transformer.
The utility model has the beneficial effects that: according to the utility model, the switch bracket is arranged on the upper clamping piece, and the vacuum on-load tap-changer is arranged on the switch bracket, so that the vacuum on-load tap-changer is arranged at the top of the transformer, the occupied area of transformer equipment is reduced, the upper clamping piece, the upper cushion block and the lower cushion block are used for supporting the whole vacuum on-load tap-changer, and meanwhile, the coil can be fixed by the gravity of the vacuum on-load tap-changer, so that the stability of the whole transformer is improved.
Drawings
Fig. 1 is a schematic front view of the present utility model.
Fig. 2 is a schematic side view of the present utility model.
Fig. 3 is a top view of the present utility model.
Reference numerals: the high-voltage coil comprises an iron core 1, a high-voltage coil 2, a low-voltage coil 3, an upper clamping piece 4, a lower clamping piece 5, an upper cushion block 6, a lower cushion block 7, a base 8, a low-voltage insulator 9, a low-voltage lead copper bar 10, a high-voltage insulator 11, a high-voltage lead copper bar 12, a heat dissipation fan 13, a connecting rod 14, a high-voltage lead cable 15, a switch bracket 16 and a vacuum on-load tap switch 17.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described in the following with reference to the accompanying drawings, in which the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
In the present utility model, fig. 1, 2 and 3 are schematic structural views provided by a specific structure of a vacuum on-load transformer according to the present utility model, and as shown in fig. 1, 2 and 3, the present utility model specifically includes: the device comprises a core 1, a coil, an upper clamping piece 4, a lower clamping piece 5, an upper cushion block 6, a lower cushion block 7, a switch bracket 16, a vacuum on-load tap-changer 17 and a base 8.
The iron core 1 comprises an outer frame iron core 1 and two inner frame iron cores 1 with the same structure, the two inner frame iron cores 1 are closely adjacent to each other and are nested in the outer frame iron core 1 side by side to form a three-column iron core 1, the coils are wound on the iron core 1, three specific coils are arranged, and 1 coil is wound on each column of the iron core 1.
The upper frame member is arranged at the top of the iron core 1, the lower clamping member 5 is arranged at the bottom of the iron core 1, the iron core 1 is fixed through the upper clamping member 5 and the lower clamping member 5, the switch bracket 16 is arranged above the upper clamping member 4, and the vacuum on-load tap-changer 17 is arranged on the switch bracket 16 so as to realize that the vacuum on-load tap-changer 17 is arranged at the top of the whole transformer, thereby reducing the occupied area of the transformer.
The upper cushion block 6 is arranged between the upper clamping piece 4 and the coil, the lower cushion block 7 is arranged between the lower clamping piece 5 and the coil, the lower clamping piece 5 is arranged on the base 8, the upper cushion block 6 and the lower cushion block 7 fix the position of the coil, and meanwhile, the base 8, the lower clamping piece 5, the lower cushion block 7, the coil, the upper cushion block 6 and the upper clamping piece 4 are structurally supported by the whole vacuum on-load tap-changer 17, and the opposite vacuum on-load tap-changer 17 can provide pressure for the cushion block and the lower cushion block 7 so as to fix the coil better.
The coils are provided with a plurality of groups of tapping terminals, particularly three groups of coils are all provided with the tapping terminals, and the voltage of the transformer can be regulated by connecting different tapping terminals. The front side of the vacuum on-load tap-changer 17 is provided with a plurality of groups of tap-changer joints corresponding to the tap-changer terminals, and a high-voltage lead cable 15 is arranged between the tap-changer joints and the tap-changer terminals corresponding to each other and is electrically connected through the high-voltage lead cable 15. After the tapping terminals are connected with the corresponding tapping switch joints, the vacuum on-load tapping switch 17 realizes on-load voltage regulation of the transformer by communicating different tapping terminals.
In the embodiment of the utility model, the coil comprises a high-voltage coil 2 and a low-voltage coil 3, the high-voltage coil 2 is wound outside the low-voltage coil 3, a high-voltage insulator 11 and a low-voltage insulator 9 are arranged on the upper clamping piece 4, the high-voltage insulator 11 and the low-voltage insulator 9 are respectively positioned on two sides of the iron core 1, the high-voltage insulator 11 is electrically connected with the high-voltage coil 2 through a high-voltage lead copper bar 12, and the low-voltage insulator 9 is electrically connected with the low-voltage coil 3 through a low-voltage lead copper bar 10. The coils are arranged in three to form three-phase windings, each phase of the three-phase windings is connected end to end, the head end of the first-phase winding is connected with the tail end of the third-phase winding, the head end of the second-phase winding is connected with the tail end of the first-phase winding, and the head end of the third-phase winding is connected with the tail end of the second-phase winding. The head and tail of each phase of the three-phase winding are connected through a connecting rod 14, and a high-voltage connecting rod can be adopted. The utility model can adopt the following connection modes: the phase A end of the first phase winding head end a is connected with the phase Z end of the third phase winding tail end C, the phase B end of the second phase winding head end B is connected with the phase X end of the first phase winding tail end a, and the phase C end of the third phase winding head end C is connected with the phase Y end of the second phase winding tail end B. On this basis, in order to guarantee the safety and stability of transformer, high-voltage insulator 1110 is the big distance insulator that climbs, and high-voltage insulator 1110 is provided with 3 simultaneously, and all is in same level, makes things convenient for the workman to install.
In one embodiment of the present utility model, in order to improve heat dissipation performance, the lower clamping piece 5 is provided with a heat dissipation fan 13. In order to improve the stability of the transformer, the lower clamping piece 5 is arranged on a base 8, and the base 8 is arranged on the ground.
In one embodiment of the present utility model, the vacuum on-load tap-changer 17 may be an intelligent vacuum on-load tap-changer 17, and in particular, the vacuum on-load tap-changer 17 is equipped with a controller, wherein the controller may be a single chip microcomputer, and the controller can communicate different tap-terminals for controlling the vacuum on-load tap-changer 17 so as to realize on-load voltage regulation of the transformer. The controller can regulate the voltage by regulating the number of turns of the transformer under the condition of load. The matched voltage-regulating intelligent controller can automatically regulate voltage according to sampling voltage and customer requirements, and can remotely control power interruption and transmission and check device operation data through Bluetooth connection mobile phones or background software to check and modify fixed values. Convenient operation and reliable performance. The vacuum on-load tap-changer 17 may be a BPK delta 150-10/35- (05-09) series dry vacuum on-load tap-changer 17.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.
Claims (6)
1. A vacuum on-load transformer, comprising: the device comprises an iron core (1), a coil, an upper clamping piece (4), a lower clamping piece (5), an upper cushion block (6), a lower cushion block (7), a switch support (16), a vacuum on-load tap switch (17) and a base (8), wherein the coil is wound on the iron core (1), the upper clamping piece (4) is arranged at the top of the iron core (1), the lower clamping piece (5) is arranged at the bottom of the iron core (1), the switch support (16) is arranged above the upper clamping piece (4), the vacuum on-load tap switch (17) is arranged on the switch support (16), the upper cushion block (6) is arranged between the upper clamping piece (4) and the coil, the lower cushion block (7) is arranged between the lower clamping piece (5) and the coil, the lower clamping piece (5) is arranged on the base (8), and a plurality of groups of tap terminals are arranged on the coil.
The front side of the vacuum on-load tap changer (17) is provided with a plurality of groups of tap changer joints corresponding to the tap changer terminals, and high-voltage lead cables (15) are arranged between the tap changer joints and the tap changer terminals corresponding to each other and are electrically connected through the high-voltage lead cables (15).
2. Vacuum on-load transformer according to claim 1, characterized in that the coil comprises a high voltage coil (2) and a low voltage coil (3), the high voltage coil (2) is wound outside the low voltage coil (3), the upper clamping piece (4) is provided with a high voltage insulator (11) and a low voltage insulator (9), the high voltage insulator (11) and the low voltage insulator (9) are respectively located at two sides of the iron core (1), the high voltage insulator (11) is electrically connected with the high voltage coil (2) through a high voltage lead copper bar (12), and the low voltage insulator (9) is electrically connected with the low voltage coil (3) through a low voltage lead copper bar (10).
3. Vacuum on-load transformer according to claim 1, characterized in that the lower clamp (5) is provided with a heat dissipation fan (13).
4. The vacuum on-load transformer of claim 1, wherein the coils are arranged in three, forming three-phase windings, each phase of the three-phase windings being connected end to end, a first phase winding head end being connected to a third phase winding tail end, a second phase winding head end being connected to the first phase winding tail end, and the third phase winding head end being connected to the second phase winding tail end.
5. Vacuum on-load transformer according to claim 4, characterized in that the three-phase windings are connected end to end by means of connecting rods (14).
6. Vacuum on-load transformer according to claim 1, characterized in that the vacuum on-load tap-changer (17) is equipped with a controller capable of communicating different tap-off terminals for controlling the vacuum on-load tap-changer (17) for on-load voltage regulation of the transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321694000.7U CN220232912U (en) | 2023-06-30 | 2023-06-30 | Vacuum on-load transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321694000.7U CN220232912U (en) | 2023-06-30 | 2023-06-30 | Vacuum on-load transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220232912U true CN220232912U (en) | 2023-12-22 |
Family
ID=89196331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321694000.7U Active CN220232912U (en) | 2023-06-30 | 2023-06-30 | Vacuum on-load transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220232912U (en) |
-
2023
- 2023-06-30 CN CN202321694000.7U patent/CN220232912U/en active Active
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