CN113394004B - Transformer oil tank structure with stepped lifting seat - Google Patents
Transformer oil tank structure with stepped lifting seat Download PDFInfo
- Publication number
- CN113394004B CN113394004B CN202110728542.0A CN202110728542A CN113394004B CN 113394004 B CN113394004 B CN 113394004B CN 202110728542 A CN202110728542 A CN 202110728542A CN 113394004 B CN113394004 B CN 113394004B
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- lifting seat
- sealing
- oil tank
- transformer
- seal
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- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to the technical field of transformer manufacturing, and provides a structure of a transformer oil tank with a stepped lifting seat, which comprises an oil tank main body, wherein a plurality of single-phase transformers are arranged in the oil tank main body, and the structure further comprises: the lifting seat is in a step shape and is arranged on the side wall of the oil tank main body, and the inside of the lifting seat is communicated with the inside of the oil tank main body; the cable head is pulled out and plugged and arranged on the step of the lifting seat and used for connecting the secondary side winding of the single-phase transformer. Through above-mentioned technical scheme, the cophase power supply transformer in the prior art pulls out and inserts cable head quantity more, and the arrangement is compact, installs the inconvenient problem of changing.
Description
Technical Field
The invention relates to the technical field of transformer manufacturing, in particular to a structure of a transformer oil tank with a stepped lifting seat.
Background
At present, the number of the oil immersed transformer bushings is generally smaller and the oil immersed transformer bushings are placed on a transformer box cover, but for sixteen split transformers for in-phase power supply, 32 outgoing heads are needed on the secondary side, and in consideration of the actual situation of a cable structure, if each outgoing head is connected with two cables, 64 cable plug-in heads are needed on the secondary side. The case lid cannot be provided with so many plug-in cable heads, but only the arrangement on the side wall of the oil tank can be considered, if the even arrangement has a plurality of problems on the side wall of the oil tank: because the number of the plug-in cable heads is large, the arrangement is very compact, and the installation is very inconvenient; if one of the cable heads is damaged in the operation process of the transformer, the replacement is very difficult; after the plug-in cable head is installed, the transformer cannot be tested.
Disclosure of Invention
The invention provides a transformer oil tank structure with a stepped lifting seat, which solves the problems of the prior art that in-phase power supply transformers are large in number of plug-in cable heads, compact in arrangement and inconvenient to install and replace.
The technical scheme of the invention is as follows:
the utility model provides a take structure of transformer tank of step-shaped elevating seat, includes the oil tank main part, set up a plurality of single-phase transformers in the oil tank main part, still include:
the lifting seat is in a step shape and is arranged on the side wall of the oil tank main body, and the inside of the lifting seat is communicated with the inside of the oil tank main body;
and the plug-in cable head is arranged on the step of the lifting seat and is used for connecting the secondary side winding of the single-phase transformer.
Further, the method further comprises the following steps:
the cover plate is provided with a manhole at the top of the lifting seat, the cover plate covers the manhole, and the cover plate is provided with a mounting position for mounting a test sleeve and performing a transformer test.
Further, the elevating seat is a single integral piece or a plurality of broken pieces.
Further, the oil tank main body is connected with the lifting seat by a flange.
Further, a sealing structure is arranged between the oil tank main body and the lifting seat.
Further, the sealing structure includes:
the first sealing disc is arranged on the oil tank main body;
the second sealing disc is arranged on the lifting seat, the second sealing piece is connected with the first sealing piece relatively to form a sealing groove, the inner side of the sealing groove is closed, and a first opening is reserved on the outer side of the sealing groove;
the first pressing piece and the second pressing piece are oppositely arranged, the inner sides of the first pressing piece and the second pressing piece are contacted, and the outer side second opening is connected with the first opening;
a first seal disposed between the first follower and the first sealing disk;
a second seal disposed between the second follower and the second sealing disk;
a third seal disposed within the first opening and the second opening.
Further, the sealing structure further includes:
and the first sealing disc is provided with a first boss, the third pressing piece is buckled on the first boss, one end of the third pressing piece is contacted with the second sealing disc, and the other end of the third pressing piece is propped against the first sealing piece.
Further, a recess is provided in the second follower, and the second seal is disposed within the recess.
Further, the first opening and the second opening are respectively provided with an inner opening diameter and an outer opening diameter which are gradually reduced.
Further, the first pressing piece and the second pressing piece, the first pressing piece and the first sealing disc, the second pressing piece and the second sealing disc, and the third pressing piece and the first sealing disc are all provided with positioning structures.
The working principle and the beneficial effects of the invention are as follows:
1. the utility model provides a take structure of transformer tank of step-shaped elevating seat, includes the oil tank main part, sets up a plurality of single-phase transformers in the oil tank main part, still includes: the lifting seat is in a step shape and is arranged on the side wall of the oil tank main body, and the inside of the lifting seat is communicated with the inside of the oil tank main body; the cable head is pulled out and plugged and arranged on the step of the lifting seat and used for connecting the secondary side winding of the single-phase transformer. Through the side wall at the oil tank main part is equipped with the step-shaped seat that rises to will pull out plug cable head setting on the step of rising the seat, can avoid among the prior art directly setting up plug cable head on the side wall of oil tank, the inconvenient problem of installation change that exists because it is many to pull out plug cable head, make the overall arrangement of pulling out plug cable head more reasonable, installation, change more convenient. .
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of a single unitary lift seat construction;
FIG. 3 is a schematic illustration of a broken-away plurality of lift seats;
FIG. 4 is a schematic cross-sectional view of a seal structure;
FIG. 5 is a schematic diagram of a connection between a first sealing disk and a second sealing disk;
FIG. 6 is a schematic illustration of a first press coupled to a second press;
fig. 7 is a schematic diagram of an iron core mounting structure;
FIG. 8 is a schematic view of a support frame structure;
FIG. 9 is an exploded view of the support frame;
FIG. 10 is a schematic diagram of a middle pipe joint;
FIG. 11 is a second schematic illustration of the middle pipe section structure;
FIG. 12 is a schematic illustration of an end section structure;
FIG. 13 is a second schematic end section configuration;
in the figure: 1 oil tank main part, 2 rising seats, 3 plug cable heads, 4 apron, 5 test sleeve pipes, 6 seal structures, 601 first seal disk, 6011 first boss, 602 second seal disk, 603 first casting die, 604 second casting die, 6041 notch, 605 third casting die, 606 first seal, 607 second seal, 608 third seal, 609 positioning structure, 610 seal groove, 611 first opening, 612 second opening, 7 support frame, 71 pipe joint, 711 oil hole, 712 splice groove, 713 protrusion, 714 groove, 72 clamping groove, 73 snap ring, 8 iron core.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment provides a structure of a transformer oil tank with a step-shaped lifting seat,
as shown in figures 1-6 of the drawings,
including oil tank main part 1, set up a plurality of single-phase transformers in the oil tank main part 1, its characterized in that still includes:
the lifting seat 2 is in a step shape, is arranged on the side wall of the oil tank main body 1, and the inside of the lifting seat 2 is communicated with the inside of the oil tank main body 1;
the plug-in cable head 3 is arranged on the step of the lifting seat 2 and is used for connecting the secondary side winding of the single-phase transformer.
Through the side wall at oil tank main part 1 is equipped with the step shape rise seat 2 to will pull out plug cable head 3 and set up on the step of rising seat 2, can avoid among the prior art directly setting up plug cable head on the side wall of oil tank, the inconvenient problem of installation change that exists because pull out plug cable head 3 quantity is many leads to makes the overall arrangement of pull out plug cable head 3 more reasonable, installs, changes more conveniently.
Further comprises:
the cover plate 4 is provided with a manhole at the top of the lifting seat 2, the cover plate 4 is covered on the manhole, and the cover plate 4 is provided with a mounting position for mounting the test sleeve 5 to perform a transformer test.
The manhole is formed in the top of the lifting seat 2 and used for transformer test and worker wiring operation, the installation position of the installation test sleeve 5 is arranged on the cover plate 4 of the manhole, the installation test sleeve 5 is convenient to install when a transformer is needed, and the problem that the transformer test cannot be performed after the installation of the plug-in cable head in the prior art is solved.
The lifting seat 2 is a single integral piece or a plurality of broken pieces.
The lifting seat 2 can be arranged on the oil tank main body 1 in a single integral mode according to the requirement, and can also be arranged in a plurality of separated modes, so that the lifting seat is convenient to adapt to different installation environments.
Since the lifting seat 2 is large and heavy, and the joint between the lifting seat 2 and the oil tank main body 1 is of a hollow structure, the lifting seat 2 and the oil tank are reinforced to prevent the transformer from deforming, for example, the lifting seat 2 is supported by the supporting ribs.
The oil tank main body 1 and the lifting seat 2 are connected by adopting flanges.
The oil tank main body 1 and the lifting seat 2 can be connected in various modes, such as welding, flange connection and the like, and the flange connection is adopted, so that the oil tank is convenient to assemble and disassemble, and the use is more flexible.
A sealing structure 6 is arranged between the oil tank main body 1 and the lifting seat 2.
And a sealing structure 6 is arranged between the oil tank main body 1 and the lifting seat 2, so that the sealing effect of the oil tank main body and the lifting seat is ensured, and oil leakage is avoided.
The sealing structure 6 includes:
a first sealing plate 601 provided on the tank main body 1;
the second sealing disc 602 is arranged on the lifting seat 2, the second sealing element 607 is oppositely connected with the first sealing element 606 to form a sealing groove 610, the inner side of the sealing groove 610 is closed, and a first opening 611 is reserved on the outer side;
the first pressing piece 603 and the second pressing piece 604, the first pressing piece 603 and the second pressing piece 604 are oppositely arranged, the inner sides are contacted, and the outer side second opening 612 is connected with the first opening 611;
a first seal 606, the first seal 606 being disposed between the first pressing member 603 and the first sealing disk 601;
a second seal 607, the second seal 607 being disposed between the second compression element 604 and the second seal disk 602;
third seal 608, third seal 608 being disposed within first opening 611 and second opening 612.
The inner side and the outer side are opposite to the inner side of the oil tank main body 1, and are close to the inner cavity, and are opposite to the outer side, when the lifting seat 2 is mounted on the oil tank main body 1, the first sealing disc 601 arranged on the oil tank main body 1 is opposite to the second sealing disc 602 arranged on the lifting seat 2, the inner side is opposite to the outer side, the first opening 611 is reserved on the outer side, a sealing groove 610 is formed between the inner side and the outer side, the first pressing piece 603 and the second pressing piece 604 are in butt joint with each other to form a sealing groove 610, the first sealing piece 603 and the second sealing piece 606 are respectively pressed on the first sealing disc 601 and the second sealing disc 602 through the first pressing piece 603 and the second pressing piece 604, a sealing is formed at the contact position of the first pressing piece 603 and the second pressing piece 604, a second opening 612 is also connected with the first opening 611, a third sealing piece 608 is arranged in the sealing groove, and the contact effect of the first pressing piece 603 and the second pressing piece 604 can be effectively ensured through the arrangement of three sealing pieces.
The sealing structure 6 further includes:
the third pressing member 605, the first sealing plate 601 is provided with a first boss 6011, the third pressing member 605 is buckled on the first boss 6011, one end of the third pressing member 605 is contacted with the second sealing plate 602, and the other end of the third pressing member is abutted against the first sealing member 606.
The first boss 6011 is arranged, so that the path of the seal groove 610 is in a folded line shape, the oil leakage path is limited, the third pressing piece 605 is in a concave shape, the third pressing piece 605 is buckled on the first boss 6011, two ends of the third pressing piece 605 are respectively contacted with the second sealing disc 602 and the first sealing piece 606, and the first sealing piece 606 is pressed together by the first pressing piece 603 and the third pressing piece 605, so that the sealing effect is ensured.
The second presser 604 is provided with a recess 6041 and the second seal 607 is provided in the recess 6041.
The notch 6041 is provided on the contact surface of the second pressing member 604 and the second sealing disk 602, and the second sealing member 607 is provided in the notch 6041, so that the installation is facilitated while the sealing effect is ensured.
The first opening 611 and the second opening 612 each have an inside-to-outside diameter that gradually decreases.
When the third sealing member 608 is disposed in the first opening 611 and the second opening 612, the force applied in the vertical direction when the elevating seat 2 is mounted with the tank main body 1 can exert an inward pressing action on the third sealing member 608, and the sealing effect is better.
Positioning structures 609 are arranged between the first pressing piece 603 and the second pressing piece 604, between the first pressing piece 603 and the first sealing disc 601, between the second pressing piece 604 and the second sealing disc 602, and between the third pressing piece 605 and the first sealing disc 601.
The positioning structure 609 is convenient for installing and positioning each pressing piece, is more convenient in installation, and the positioning structure 609 can be in a mode that a boss corresponds to a recess.
As shown in figures 7-13 of the drawings,
the single-phase transformer comprises a support frame 7, an iron core 8 and a winding, wherein the support frame is arranged in the oil tank main body, the winding is arranged on the iron core 8, the support frame 7 comprises an upper circulating pipe and a lower circulating pipe, and the iron core 8 is arranged between the upper circulating pipe and the lower circulating pipe;
the upper circulating pipe and the lower circulating pipe are communicated with the oil chamber, the upper circulating pipes in the plurality of oil chambers are communicated, and the lower circulating pipes in the plurality of oil chambers are communicated;
the upper circulating pipe and the lower circulating pipe are used for communicating the cooling device.
The iron core 8 is installed between last circulating pipe and lower circulating pipe, and cooling device's oil feed end and play oil end connect respectively and go up circulating pipe and lower circulating pipe, carry out the circulative cooling to the indoor fluid of oil through last circulating pipe, lower circulating pipe and cooling device, and the cooling effect is better, and the mounting bracket that will support iron core 8 is integrated with fluid circulating pipe moreover, need not additionally arrange the fluid pipeline, and overall structure is simpler.
The upper circulation pipe and the lower circulation pipe are each formed by splicing a plurality of pipe joints 71.
Support frames 7 with different sizes can be formed by splicing pipe joints 71 so as to adapt to iron cores 8 with different sizes.
The side wall of the pipe joint 71 is provided with a plurality of oil holes 711.
An oil hole 711 is formed in the side wall of the pipe joint 71 and is used as a channel for oil to enter the upper circulating pipe and the lower circulating pipe, an oil pipe can be arranged to be communicated with the oil hole 711, an opening of the oil pipe is positioned at a relatively high temperature in the oil chamber, and the high Wen Youye can be preferentially made to enter the circulation first, so that the cooling effect is improved.
The side wall of the pipe joint 71 is provided with a splicing groove 712, and after the splicing of the pipe joints 71 is completed, the splicing grooves 712 on the pipe joints 71 are spliced to form a closed clamping groove 72;
the support frame 7 further comprises a clamping ring 73, and the clamping ring 73 is arranged in the clamping groove 72.
The clamping grooves 72 are formed by splicing the splicing grooves 712 on the pipe sections 71, and then the clamping rings 73 are clamped in the clamping grooves 72, so that the splicing of the pipe sections 71 is realized, the splicing tightness of the pipe sections 71 is ensured, the clamping rings 73 can be of various types, and the splicing of the pipe sections 71 with different numbers is adapted.
Two opposite splice grooves 712 are formed on the pipe joint 71 to form two clamping grooves 72, and the two clamping grooves are fixed by a clamping ring 73, so that the pipe joint is more stable.
The splicing grooves 712 on the pipe sections 71 at the two ends are single, two splicing openings are arranged at the same end, the splicing grooves 712 on the pipe section 71 in the middle are two parallel grooves, and the splicing openings are arranged at the two ends.
The pipe joint 71 is square pipe, makes things convenient for the installation of iron core 8, supports more stably.
The splicing position of the two adjacent pipe sections 71 is respectively provided with the bulge 713 and the groove 714, the bulge 713 stretches into the groove 714, so that the positioning is convenient when the two pipe sections 71 are spliced, the bulge 713 and the groove 714 are not annular grooves, and the rotation of the two adjacent pipe sections 71 can be avoided.
The pipe sections 71 at both ends are closed at one end and are provided with joints for communication with the oil pipe.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. The utility model provides a take structure of transformer tank of step-shaped elevating seat, includes oil tank main part (1), set up a plurality of single-phase transformers in oil tank main part (1), its characterized in that still includes:
the lifting seat (2) is in a step shape and is arranged on the side wall of the oil tank main body (1), and the inside of the lifting seat (2) is communicated with the inside of the oil tank main body (1);
the plug-in cable head (3) is arranged on the step of the lifting seat (2) and is used for connecting the secondary side winding of the single-phase transformer;
the oil tank main body (1) with be equipped with seal structure (6) between rising seat (2), seal structure (6) include:
the first sealing disc (601) is arranged on the oil tank main body (1), and a first boss (6011) is arranged on the first sealing disc (601);
the second sealing disc (602) is arranged on the lifting seat (2), the second sealing disc (602) is connected with the first sealing disc (601) oppositely to form a sealing groove (610), the inner side of the sealing groove (610) is sealed, and a first opening (611) is reserved on the outer side of the sealing groove;
a first pressing member (603) and a second pressing member (604), wherein the first pressing member (603) and the second pressing member (604) are oppositely arranged, the inner sides are contacted, and the outer side second opening (612) is connected with the first opening (611);
-a first seal (606), said first seal (606) being arranged between said first presser (603) and said first sealing disc (601);
a second seal (607), said second seal (607) being disposed between said second follower (604) and said second seal disk (602);
-a third seal (608), the third seal (608) being disposed within the first opening (611) and the second opening (612);
a third pressing member (605), wherein the third pressing member (605) is buckled on the first boss (6011), one end of the third pressing member is contacted with the second sealing disc (602), and the other end of the third pressing member is propped against the first sealing piece (606) and the first sealing disc (601);
the second pressing piece (604) is provided with a notch (6041), and the second sealing piece (607) is arranged in the notch (6041).
2. The stepped riser transformer tank structure of claim 1, further comprising:
the cover plate (4), the manhole has been seted up at the top of rising seat (2), cover plate (4) lid is in on the manhole, be equipped with the installation position on cover plate (4) for install test sleeve pipe (5), carry out the transformer test.
3. Transformer tank structure with stepped lifting seat according to claim 1, characterized in that the lifting seat (2) is a single integral or broken plurality.
4. A structure of a transformer tank with a stepped lifting seat according to any one of claims 1-3, characterized in that the tank body (1) and the lifting seat (2) are flanged.
5. The stepped-up transformer tank structure of claim 1, wherein said first opening (611) and said second opening (612) each have a gradually decreasing inside-to-outside diameter.
6. The transformer tank structure with the stepped lifting seat according to claim 1, wherein positioning structures (609) are arranged between the first pressing piece (603) and the second pressing piece (604), between the first pressing piece (603) and the first sealing disk (601), between the second pressing piece (604) and the second sealing disk (602), and between the third pressing piece (605) and the first sealing disk (601).
7. The structure of a transformer tank with a stepped lifting seat according to claim 1, characterized in that the single-phase transformer comprises a support frame (7), an iron core (8) and windings, wherein the support frame is arranged in the tank body, the windings are arranged on the iron core (8), the support frame (7) comprises an upper circulating pipe and a lower circulating pipe, and the iron core (8) is arranged between the upper circulating pipe and the lower circulating pipe;
the upper circulating pipe and the lower circulating pipe are communicated with the oil chamber, the upper circulating pipes in the plurality of oil chambers are communicated, and the lower circulating pipes in the plurality of oil chambers are communicated;
the upper circulating pipe and the lower circulating pipe are used for communicating the cooling device.
8. The structure of the transformer tank with the stepped lifting seat according to claim 7, wherein the upper circulating pipe and the lower circulating pipe are formed by splicing a plurality of pipe joints (71),
a splicing groove (712) is formed in the side wall of the pipe joint (71), and after the splicing of the pipe joints (71) is completed, the splicing groove (712) on the pipe joints (71) is spliced to form a closed clamping groove (72);
the support frame (7) also comprises a clamping ring (73), and the clamping ring (73) is arranged in the clamping groove (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728542.0A CN113394004B (en) | 2021-06-29 | 2021-06-29 | Transformer oil tank structure with stepped lifting seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110728542.0A CN113394004B (en) | 2021-06-29 | 2021-06-29 | Transformer oil tank structure with stepped lifting seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113394004A CN113394004A (en) | 2021-09-14 |
| CN113394004B true CN113394004B (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110728542.0A Active CN113394004B (en) | 2021-06-29 | 2021-06-29 | Transformer oil tank structure with stepped lifting seat |
Country Status (1)
| Country | Link |
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| CN (1) | CN113394004B (en) |
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| JP2003272928A (en) * | 2002-03-14 | 2003-09-26 | Hitachi Ie Systems Co Ltd | Transformer |
| CN201311830Y (en) * | 2008-12-15 | 2009-09-16 | 锦州变压器股份有限公司 | Cable incoming device of transformer high-voltage side |
| CN201527881U (en) * | 2009-09-28 | 2010-07-14 | 沈阳全密封变压器股份有限公司 | Transformer tank adopting trapezoidal rising base structure |
| CN208385145U (en) * | 2018-06-22 | 2019-01-15 | 河南森源电气股份有限公司 | Power transformer enclosure and the transformer for using the raising seat |
| CN209015818U (en) * | 2018-12-22 | 2019-06-21 | 弘乐集团有限公司 | A kind of oil-leakage-prevention amorphous alloy transformer |
| CN209165569U (en) * | 2018-11-20 | 2019-07-26 | 河北道荣新能源科技有限公司 | A kind of sliceable solar heating system precisely to heat |
| CN111029088A (en) * | 2019-12-24 | 2020-04-17 | 保定天威保变电气股份有限公司 | Anti-explosion structure between transformer lifting seat and sleeve and installation method |
| CN210545700U (en) * | 2019-03-13 | 2020-05-19 | 新疆博纳格材料科技有限公司 | Modularized fog and white removing device for cooling tower |
| CN210668006U (en) * | 2019-11-04 | 2020-06-02 | 衢州杭甬变压器有限公司 | Oil cooling and heat dissipation assembly block for transformer oil tank |
| CN210668023U (en) * | 2019-11-04 | 2020-06-02 | 衢州杭甬变压器有限公司 | Box frame splicing piece with good heat dissipation |
| CN111540585A (en) * | 2020-06-08 | 2020-08-14 | 保定天威保变电气股份有限公司 | Outlet structure of single-phase converter transformer |
-
2021
- 2021-06-29 CN CN202110728542.0A patent/CN113394004B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003272928A (en) * | 2002-03-14 | 2003-09-26 | Hitachi Ie Systems Co Ltd | Transformer |
| CN201311830Y (en) * | 2008-12-15 | 2009-09-16 | 锦州变压器股份有限公司 | Cable incoming device of transformer high-voltage side |
| CN201527881U (en) * | 2009-09-28 | 2010-07-14 | 沈阳全密封变压器股份有限公司 | Transformer tank adopting trapezoidal rising base structure |
| CN208385145U (en) * | 2018-06-22 | 2019-01-15 | 河南森源电气股份有限公司 | Power transformer enclosure and the transformer for using the raising seat |
| CN209165569U (en) * | 2018-11-20 | 2019-07-26 | 河北道荣新能源科技有限公司 | A kind of sliceable solar heating system precisely to heat |
| CN209015818U (en) * | 2018-12-22 | 2019-06-21 | 弘乐集团有限公司 | A kind of oil-leakage-prevention amorphous alloy transformer |
| CN210545700U (en) * | 2019-03-13 | 2020-05-19 | 新疆博纳格材料科技有限公司 | Modularized fog and white removing device for cooling tower |
| CN210668006U (en) * | 2019-11-04 | 2020-06-02 | 衢州杭甬变压器有限公司 | Oil cooling and heat dissipation assembly block for transformer oil tank |
| CN210668023U (en) * | 2019-11-04 | 2020-06-02 | 衢州杭甬变压器有限公司 | Box frame splicing piece with good heat dissipation |
| CN111029088A (en) * | 2019-12-24 | 2020-04-17 | 保定天威保变电气股份有限公司 | Anti-explosion structure between transformer lifting seat and sleeve and installation method |
| CN111540585A (en) * | 2020-06-08 | 2020-08-14 | 保定天威保变电气股份有限公司 | Outlet structure of single-phase converter transformer |
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| Publication number | Publication date |
|---|---|
| CN113394004A (en) | 2021-09-14 |
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