CN219916903U - Three-phase four-column medium-voltage transformer for harmonic transmission - Google Patents
Three-phase four-column medium-voltage transformer for harmonic transmission Download PDFInfo
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- CN219916903U CN219916903U CN202321199782.7U CN202321199782U CN219916903U CN 219916903 U CN219916903 U CN 219916903U CN 202321199782 U CN202321199782 U CN 202321199782U CN 219916903 U CN219916903 U CN 219916903U
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- clamping piece
- coil
- lower clamping
- insulating plate
- fan
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000012212 insulator Substances 0.000 claims description 11
- 238000004804 winding Methods 0.000 description 18
- 238000009413 insulation Methods 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Insulating Of Coils (AREA)
Abstract
The utility model provides a three-phase four post medium voltage transformer for harmonic transmission, includes coil and iron core, the coil includes inlayer coil and outer coil, and inlayer coil snare is established outside the iron core, and the insulating cylinder cover is established outside the inlayer coil, and outer coil snare is established outside the insulating cylinder for separate respectively and fix a position inlayer coil, insulating cylinder and outer coil's last cushion and lower cushion set up respectively at inlayer coil, insulating cylinder and outer coil's upper and lower both ends, and the left and right sides of iron core one end meets with first upper clamp and second upper clamp respectively, and the left and right sides of the iron core other end meets with first lower clamp and second lower clamp respectively. Further, more than two base plates are arranged below the first lower clamping piece and the second lower clamping piece, the left end and the right end of the more than two base plates respectively protrude out of two sides of the first lower clamping piece and the second lower clamping piece, and the first fan and the second fan are respectively arranged on the outer sides of the first lower clamping piece and the second lower clamping piece.
Description
Technical Field
The utility model relates to a three-phase four-column medium-voltage transformer for harmonic transmission.
Background
The Chinese patent document No. CN 206947101U discloses a three-phase transformer in 2018, 01 and 30 days, which comprises a bottom supporting seat, wherein a first winding column, a second winding column and a third winding column are vertically arranged at the upper end of the bottom supporting seat, and top supporting seats are arranged at the upper ends of the first winding column, the second winding column and the third winding column; a first support piece is arranged on one side of the bottom support seat, a second support piece is arranged on the other side of the bottom support seat, first strip-shaped mounting rods are arranged at the bottoms of the first support piece and the second support piece, and second strip-shaped mounting rods are arranged at the bottoms of the first support piece and the second support piece; a third supporting piece is arranged on one side of the top supporting seat, and a fourth supporting piece is arranged on the other side of the top supporting seat; the first winding column, the second winding column and the third winding column are respectively wound with a first winding group, a second winding group and a third winding group, one sides of the first winding group, the second winding group and the third winding group are provided with a first lead frame, and the other sides of the first winding group, the second winding group and the third winding group are provided with a second lead frame. The creepage distance of the three-phase transformer is smaller, the safety performance is not high enough, and the three-phase transformer needs to be improved.
Disclosure of Invention
The utility model aims to provide a three-phase four-column medium-voltage transformer with good safety performance for harmonic transmission, so as to overcome the defects in the prior art.
The three-phase four-column medium voltage transformer for harmonic transmission comprises a coil and an iron core, and is structurally characterized in that the coil comprises an inner coil and an outer coil, the inner coil is sleeved outside the iron core, an insulating cylinder is sleeved outside the inner coil, the outer coil is sleeved outside the insulating cylinder, an upper cushion block and a lower cushion block for separating and positioning the inner coil, the insulating cylinder and the outer coil are respectively arranged at the upper end and the lower end of the inner coil, the upper end and the lower end of the insulating cylinder and the lower end of the outer coil, the left side and the right side of one end of the iron core are respectively connected with a first upper clamping piece and a second upper clamping piece, and the left side and the right side of the other end of the iron core are respectively connected with a first lower clamping piece and a second lower clamping piece.
Further, the lower face of the first lower clamping piece and the second lower clamping piece is provided with more than two base plates, the left end and the right end of the more than two base plates respectively protrude out of the two sides of the first lower clamping piece and the two sides of the second lower clamping piece, and the first fan and the second fan are respectively arranged on the outer sides of the first lower clamping piece and the second lower clamping piece and are in compression joint with the left end and the right end of the more than two base plates.
Further, the first fan and the second fan are respectively through-flow fans, the air outlets of the first fan and the second fan face the side face of the iron core, and the air inlets of the first fan and the second fan are arranged downwards.
Further, still include first insulation board, second insulation board and third insulation board, the one end of first insulation board and the one end of third insulation board meet with the second lower folder, and the second insulation board crimping is on the second fan, and the other end of first insulation board meets with the one end of second insulation board, and the middle part of third insulation board meets with the second insulation board, and the other end crimping of third insulation board is in the side of second fan.
Further, the insulator is integrally cast with the first upper clamping piece through the insulator mounting plate.
The transformer for harmonic transmission transmits the harmonic voltage of the primary side to the secondary side according to a certain transformation ratio and harmonic frequency, the primary side voltage of the transformer is the PWM modulation output voltage of the frequency converter, the phase voltage range is 0-1140V, and the frequency is 3-2000 Hz. The secondary side of the transformer is required to be connected in series to a 6kV system, a 10kV system and a 35kV system, the phase voltage range is 0-450V, the phase voltage frequency of the secondary side is the same as the output frequency of the primary side, and the phase voltage frequency is 3-2000 Hz. The load current of the transformer is mainly load power frequency current of 6kV, 10kV and 35kV systems.
The upper end and the lower end of the inner coil, the insulating cylinder and the outer coil are respectively supported and separated by the upper cushion block and the lower cushion block, so that the creepage distance is greatly increased, the safety performance of products is improved, and the heat radiation capacity of the products can be greatly improved by arranging the first fan and the second fan on the left and right outer sides of the first lower clamping piece and the second lower clamping piece respectively, so that powerful guarantee is provided for long-term stable harmonic transmission operation of the products.
The insulator is integrally cast with the first upper clamping piece through the insulator mounting plate, so that the integral strength of the product is improved, and the safety performance of the product is also improved.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present utility model.
Fig. 2 is a schematic left-view perspective structure of fig. 1.
Fig. 3 is a schematic bottom perspective view of fig. 1.
1 is a first aluminum row, 2 is an insulator, 2.1 is an insulator mounting plate, 4 is a second aluminum row, 5 is a first fan, 6 is a first lower clamping piece, 7 is a second lower clamping piece, 8 is a first insulating plate, 9 is a second insulating plate, 10 is a third insulating plate, 11 is a backing plate, 12 is a lower cushion block, 13 is an outer layer coil, 14 is an insulating cylinder, 15 is an upper cushion block, 16 is a second upper clamping piece, 17 is an iron core, 18 is a first upper clamping piece, 19 is an inner layer coil, 20 is a second fan,
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1-3, a three-phase four-pole medium voltage transformer for harmonic transmission comprises a coil and an iron core, wherein the coil comprises an inner coil 19 and an outer coil 13, the inner coil 19 is sleeved outside the iron core 17, an insulating cylinder 14 is sleeved outside the inner coil 19, the outer coil 13 is sleeved outside the insulating cylinder 14, an upper cushion block 15 and a lower cushion block 12 for separating and positioning the inner coil 19, the insulating cylinder 14 and the outer coil 13 are respectively arranged at the upper end and the lower end of the inner coil 19, the upper cushion block 14 and the lower end of the outer coil 13, the left side and the right side of one end of the iron core 17 are respectively connected with a first upper clamping piece 18 and a second upper clamping piece 16, and the left side and the right side of the other end of the iron core 17 are respectively connected with a first lower clamping piece 6 and a second lower clamping piece 7.
In this embodiment, the inner layer coil 19 and the outer layer coil 13 are arranged at intervals, and the insulating cylinder 14 is further arranged between the inner layer coil 19 and the outer layer coil 13, so that the creepage distance is greatly increased, and positioning grooves for clamping the inner layer coil 19, the outer layer coil 13 and the insulating cylinder 14 are respectively arranged on the upper cushion block 15 and the lower cushion block 12, so that the assembly efficiency and the accuracy are improved, the creepage distance is increased, and the safety performance of a product is improved.
The lower surfaces of the first lower clamping piece 6 and the second lower clamping piece 7 are provided with more than two base plates 11, the left end and the right end of the more than two base plates 11 respectively protrude out of the two sides of the first lower clamping piece 6 and the second lower clamping piece 7, and the first fan 5 and the second fan 20 are respectively arranged on the outer sides of the first lower clamping piece 6 and the second lower clamping piece 7 and are in compression joint with the left end and the right end of the more than two base plates 11.
The first fan 5 and the second fan 20 are respectively through-flow fans, the air outlets of the through-flow fans face the side face of the iron core, and the air inlets of the through-flow fans are arranged downwards.
The fan is characterized by further comprising a first insulating plate 8, a second insulating plate 9 and a third insulating plate 10, wherein one end of the first insulating plate 8 and one end of the third insulating plate 10 are connected with the second lower clamping piece 7, the second insulating plate 9 is in pressure connection with the second fan 20, the other end of the first insulating plate 8 is connected with one end of the second insulating plate 9, the middle part of the third insulating plate 10 is connected with the second insulating plate 9, and the other end of the third insulating plate 10 is in pressure connection with the side face of the second fan 20.
The insulator 2 is integrally cast with the first upper clamping piece 18 through the insulator mounting plate 2.1.
The integral strength of the product can be improved through casting, and the installation and use strength of the product in the later period is reduced, so that the product is greatly convenient for users.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model, and the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying the number of technical features being indicated.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. A three-phase four-column medium voltage transformer for harmonic transmission comprises a coil and an iron core, and is characterized in that the coil comprises an inner coil (19) and an outer coil (13), the inner coil (19) is sleeved outside the iron core (17), an insulating cylinder (14) is sleeved outside the inner coil (19), the outer coil (13) is sleeved outside the insulating cylinder (14) and is used for separating and positioning an upper cushion block (15) and a lower cushion block (12) of the inner coil (19), the insulating cylinder (14) and the outer coil (13) respectively, the upper end and the lower end of the inner coil (19), the upper end and the lower end of the insulating cylinder (14) and the lower end of the outer coil (13) are respectively connected with a first upper clamping piece (18) and a second upper clamping piece (16), and the left side and the right side of the other end of the iron core (17) are respectively connected with a first lower clamping piece (6) and a second lower clamping piece (7).
2. The three-phase four-column medium voltage transformer for harmonic transmission according to claim 1, characterized in that more than two base plates (11) are arranged below the first lower clamping piece (6) and the second lower clamping piece (7), the left and right ends of the more than two base plates (11) respectively protrude out of the two sides of the first lower clamping piece (6) and the second lower clamping piece (7), and the first fan (5) and the second fan (20) are respectively arranged on the outer sides of the first lower clamping piece (6) and the second lower clamping piece (7) and are in pressure connection with the left and right ends of the more than two base plates (11).
3. The three-phase four-column medium voltage transformer for harmonic transmission according to claim 2, wherein the first fan (5) and the second fan (20) are respectively through-flow fans, the air outlets of which face the side face of the iron core, and the air inlets of which are arranged downwards.
4. The three-phase four-column medium voltage transformer for harmonic transmission according to claim 2, further comprising a first insulating plate (8), a second insulating plate (9) and a third insulating plate (10), wherein one end of the first insulating plate (8) and one end of the third insulating plate (10) are connected with the second lower clamping piece (7), the second insulating plate (9) is in pressure connection with the second fan (20), the other end of the first insulating plate (8) is connected with one end of the second insulating plate (9), the middle part of the third insulating plate (10) is connected with the second insulating plate (9), and the other end of the third insulating plate (10) is in pressure connection with the side face of the second fan (20).
5. The three-phase four-pole medium voltage transformer for harmonic transmission according to claim 2, further comprising an insulator (2), said insulator (2) being cast integrally with the first upper clip member (18) by means of an insulator mounting plate (2.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199782.7U CN219916903U (en) | 2023-05-17 | 2023-05-17 | Three-phase four-column medium-voltage transformer for harmonic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321199782.7U CN219916903U (en) | 2023-05-17 | 2023-05-17 | Three-phase four-column medium-voltage transformer for harmonic transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219916903U true CN219916903U (en) | 2023-10-27 |
Family
ID=88429319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321199782.7U Active CN219916903U (en) | 2023-05-17 | 2023-05-17 | Three-phase four-column medium-voltage transformer for harmonic transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219916903U (en) |
-
2023
- 2023-05-17 CN CN202321199782.7U patent/CN219916903U/en active Active
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