CN114093610B - Novel 220kV three-phase integrated traction transformer - Google Patents
Novel 220kV three-phase integrated traction transformer Download PDFInfo
- Publication number
- CN114093610B CN114093610B CN202111499407.XA CN202111499407A CN114093610B CN 114093610 B CN114093610 B CN 114093610B CN 202111499407 A CN202111499407 A CN 202111499407A CN 114093610 B CN114093610 B CN 114093610B
- Authority
- CN
- China
- Prior art keywords
- oil tank
- gears
- sides
- plate
- transformer
- 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
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 244000309464 bull Species 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 8
- 229920000742 Cotton Polymers 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 241000219146 Gossypium Species 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 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
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/16—Cascade transformers, e.g. for use with extra high tension
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to the technical field of power transformers, and discloses a novel 220kV three-phase integrated traction transformer, which comprises an oil tank and a transformer main body, wherein the transformer main body is fixedly arranged in the oil tank, U-shaped brush plates are arranged on two sides of the transformer main body, inner side walls of the two U-shaped brush plates are in contact with outer side walls of the transformer main body, fixed blocks are arranged on two sides of the oil tank, one ends, close to the fixed blocks, of the two fixed blocks are fixedly connected with the outer side walls of the oil tank, first rotating rods are arranged on front sides of the two fixed blocks, rear ends of the two first rotating rods are rotatably connected with corresponding fixed blocks through first rolling bearings, push rods are arranged on front sides of the two first rotating rods, strip-shaped openings are formed in surfaces of the two push rods, and fixed plates are arranged on outer sides of the two U-shaped brush plates. This novel integrative traction transformer of 220kV three-phase can last high-efficient automatic heat dissipation, guarantees the stability of transformer operation.
Description
Technical Field
The invention relates to the technical field of power transformers, in particular to a novel 220kV three-phase integrated traction transformer.
Background
The three-phase integral non-excitation voltage-regulating traction transformer is generally composed of two independent single-phase transformers with different capacities, such as the model is: QYS- (40000+31500)/220 traction transformer, according to the previous equivalent product structure, two sets of no-load switches and two sets of operating mechanisms are needed. Therefore, the cost of the transformer is high, and the appearance is low.
Wherein, the patent number CN205487704U discloses a 220kV three-phase integrated traction transformer, and when in use, the three-phase integrated traction transformer is formed by internal connection; each single-phase traction transformer high-voltage coil adopts middle incoming line, end series connection, and low-voltage coil adopts series connection's mode, adopts two double-bridge to cross over no-excitation tapping switch and outside configuration to have an operating mechanism to form three-phase integrative traction transformer, has reduced switch quantity, the cost is reduced, on the other hand, has made things convenient for workshop operation, has reduced man-hour, still has the defect in this technical scheme:
In the technical scheme, the transformer can generate higher temperature under long-term use, and only the self heat dissipation structure is used for dissipating heat, so that the heat dissipation efficiency is low.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a novel 220kV three-phase integrated traction transformer which has the advantages of continuously and efficiently automatically radiating, ensuring the operation stability of the transformer, and solving the problems that the 220kV three-phase integrated traction transformer radiates heat close to a self radiating structure when in use and has low radiating efficiency.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a novel 220kV three-phase integrative traction transformer, includes oil tank and transformer main part, transformer main part fixed mounting is in the inside of oil tank, the both sides of transformer main part all are provided with U type brush board, two the inside wall of U type brush board all contradicts with the lateral wall of transformer main part, the both sides of oil tank all are provided with the fixed block, two the one end that the fixed block is close to all with the lateral wall fixed connection of oil tank, two the front side of fixed block all is provided with first bull stick, two the rear end of first bull stick all rotates with corresponding fixed block through first antifriction bearing and is connected, two the front side of first bull stick all is provided with the push rod, two the bar mouth has all been seted up on the surface of push rod, two the outside of U type brush board all is provided with the fixed plate, two the inboard one end of fixed plate all is with corresponding U type brush board fixed connection, two the outside one end front side of fixed plate all is provided with round pin, two the rear end of round pin all is connected with the corresponding with the second antifriction bearing with the corresponding second gear, two the two rear end of two round pin is provided with the second and is connected with the two side of first and is provided with the oil tank, two the two rear end of first and two end of the same side of first bull stick is provided with the two end of two corresponding to the first and two end of round pin, one end of each side plate, which is close to the oil tank, is fixedly connected with the rear side wall of the oil tank, and a transmission mechanism for driving the two second gears to rotate is arranged between the two side plates.
The transmission mechanism comprises a sliding plate and racks, wherein a reciprocating screw rod is arranged between the two side plates, the two ends of the reciprocating screw rod are respectively and rotatably connected with the inner side walls of the corresponding side plates through fourth rolling bearings, the lower side of the side plates is provided with a motor, the output end of the motor is fixedly connected with the lower end of the reciprocating screw rod, the sliding plate is arranged between the two side plates, the middle end of the sliding plate is in threaded connection with the rod wall of the reciprocating screw rod, vertical rods are respectively arranged on the upper sides of the two ends of the sliding plate, the lower ends of the vertical rods are respectively and fixedly connected with one end of the corresponding sliding plate, the racks are respectively and fixedly arranged on the outer side rod walls of the corresponding vertical rods, and the two racks are respectively and meshed with the corresponding second gears.
Two between the curb plates and be located reciprocating screw's both sides all are provided with the slide bar, two the slide bar all runs through the slide, two the both ends of slide bar all with corresponding curb plate fixed connection, carry out spacingly to slide 13, prevent that slide 13 from taking place to rotate for slide 13 can stable slip.
The motor is fixedly connected with the corresponding side plate through the fixing frame, so that the motor 17 is more firmly connected with the corresponding side plate 15.
The front ends of the round pins at both sides are fixedly sleeved with baffle rings, so that the round pins 8 are prevented from slipping from the corresponding strip-shaped openings.
A plurality of clamping grooves are formed in two inner side walls of the U-shaped brush plate, and the U-shaped brush plate is convenient to stably and slidably connect with the transformer main body 2.
The inside of both sides the U type brush board all is provided with the cotton that absorbs water, the cotton that absorbs water passes through bolt and U type brush board fixed connection, conveniently absorbs water.
(III) beneficial effects
Compared with the prior art, the invention provides a novel 220kV three-phase integrated traction transformer, which has the following beneficial effects:
This novel 220kV three-phase integrative traction transformer drives reciprocating screw through the motor and rotates, reciprocating screw drives slide reciprocating motion from top to bottom, the slide drives two montants and reciprocates, drive two racks and reciprocate promptly, two racks drive two second gears and rotate, two second gears drive two first gears and rotate promptly, drive two push rods and reciprocate the swing promptly, can reciprocate two round pins from top to bottom, drive two U type brush boards and reciprocate promptly, U type brush board downwardly moving adsorbs the oil in the oil tank, then upward movement coats oil in the surface of transformer main part, can last high-efficient automatic heat dissipation, guarantee the stability of transformer operation.
Drawings
FIG. 1 is a schematic diagram of a novel 220kV three-phase integrated traction transformer;
FIG. 2 is a schematic rear view of the structure of FIG. 1;
FIG. 3 is a schematic perspective view of the U-shaped brush plate in FIG. 1;
Fig. 4 is an enlarged view of the part a structure of fig. 1.
In the figure: 1 oil tank, 2 transformer body, 3 fixed blocks, 4 first bull stick, 5 push rods, 6U formula brush board, 7 fixed plates, 8 round pins, 9 keep off the ring, 10 first gears, 11 second bull stick, 12 second gears, 13 skateboards, 14 montants, 15 curb plates, 16 reciprocating screw rods, 17 motors, 18 gag lever posts, 19 absorbent cottons, 20 draw-in grooves, 21 racks.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled 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.
Referring to fig. 1-4, a novel 220kV three-phase integrated traction transformer comprises an oil tank 1 and a transformer main body 2, wherein the transformer main body 2 is fixedly installed in the oil tank 1, both sides of the transformer main body 2 are respectively provided with a U-shaped brush plate 6, both inner side walls of the two U-shaped brush plates 6 are respectively abutted against the outer side walls of the transformer main body 2, both sides of the oil tank 1 are respectively provided with a fixed block 3, one end of each of the two fixed blocks 3 close to the outer side wall of the oil tank 1 is fixedly connected, the front sides of the two fixed blocks 3 are respectively provided with a first rotating rod 4, the rear ends of the two first rotating rods 4 are respectively connected with the corresponding fixed blocks 3 in a rotating way through first rolling bearings, the front sides of the two first rotating rods 4 are respectively provided with a push rod 5, the surfaces of the two push rods 5 are respectively provided with a strip-shaped opening, the outer sides of the two U-shaped brush plates 6 are respectively provided with a fixed plate 7, the inner side ends of the two fixed plates 7 are respectively fixedly connected with the corresponding U-shaped brush plates 6, round pins 8 are arranged at the front sides of one ends of the outer sides of the two fixing plates 7, the rear ends of the two round pins 8 are rotationally connected with the corresponding fixing plates 7 through first rolling bearings, the front ends of the two round pins 8 extend to the interiors of corresponding strip-shaped openings, first gears 10 are arranged at the rear sides of the two fixing blocks 3, the two first gears 10 are fixedly sleeved with the rear end rod walls of the corresponding first rotating rods 3, second gears 12 are arranged at the rear sides of the oil tank 1 and the inner sides of the two first gears 10, second rotating rods 11 are fixedly sleeved at the middle parts of the two second gears 12, one ends of the two second rotating rods 11 close to the oil tank 1 are rotationally connected with the rear side wall of the oil tank 1 through third rolling bearings, the two first gears 10 are in meshed connection with the corresponding second gears 12, two side plates 15 are arranged at the middle parts of the rear sides of the oil tank 1, one end of the two side plates 15, which is close to the oil tank 1, is fixedly connected with the rear side wall of the oil tank 1, and a transmission mechanism for driving the two second gears 12 to rotate is arranged between the two side plates 15.
The transmission mechanism comprises a sliding plate 13 and racks 14, a reciprocating screw rod 16 is arranged between the two side plates 15, two ends of the reciprocating screw rod 16 are respectively and rotatably connected with the inner side walls of the corresponding side plates 15 through fourth rolling bearings, a motor 17 is arranged on the lower side of the lower side plate 15, the output end of the motor 17 is fixedly connected with the lower end of the reciprocating screw rod 16, the sliding plate 13 is arranged between the two side plates 15, the middle end of the sliding plate 13 is in threaded sleeve joint with the rod wall of the reciprocating screw rod 16, vertical rods 14 are respectively arranged on the upper sides of two ends of the sliding plate 13, the lower ends of the two vertical rods 14 are respectively and fixedly connected with one end of the corresponding sliding plate 13, the two racks 21 are respectively and fixedly arranged on the outer side rod walls of the corresponding vertical rods 14, and the two racks 21 are respectively and meshed with the corresponding second gears 12.
Slide bars 18 are arranged between the two side plates 15 and positioned on two sides of the reciprocating screw rod 16, the two slide bars 18 penetrate through the slide plate 13, and two ends of the two slide bars 18 are fixedly connected with the corresponding side plates 15.
The motor 17 is fixedly connected with the corresponding side plate 15 through a fixing frame.
The front ends of the round pins 8 on both sides are fixedly sleeved with baffle rings 9.
A plurality of clamping grooves 20 are formed in two inner side walls of the U-shaped brush plate 6.
The inner sides of the U-shaped brush plates 6 on both sides are provided with water absorbing cotton 19, and the water absorbing cotton 19 is fixedly connected with the U-shaped brush plates 6 through bolts.
To sum up, this novel 220kV three-phase integrative traction transformer, when using, the staff switch on the power of motor 17, motor 17 drives reciprocating screw 16 and rotates, reciprocating screw 16 drives slide 13 reciprocating motion about, slide 13 drives two montants 14 and reciprocates, drive two racks 21 and reciprocate promptly, two racks 21 drive two second gears 12 and rotate, two first gears 10 are driven to two second gears 12 rotate promptly, drive two push rods 5 reciprocal wobbling, can reciprocate two round pins 8 promptly, drive two U type brush boards 6 and reciprocate promptly, U type brush board 6 moves down and adsorbs the oil in the oil tank, then upward movement coats oil on the surface of transformer main part 1, can carry out continuous high-efficient automatic heat dissipation, guarantee the stability of transformer operation.
It should be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. Novel 220kV three-phase integrated traction transformer comprises an oil tank (1) and a transformer main body (2), and is characterized in that: the utility model discloses a transformer main part (2) fixed mounting is in the inside of oil tank (1), the both sides of transformer main part (2) all are provided with U type brush board (6), two the inside wall of U type brush board (6) all contradicts with the lateral wall of transformer main part (2), the both sides of oil tank (1) all are provided with fixed block (3), two the one end that fixed block (3) is close to all with the lateral wall fixed connection of oil tank (1), two the front side of fixed block (3) all is provided with first bull stick (4), two the rear end of first bull stick (4) all is connected with corresponding fixed block (3) rotation through first antifriction bearing, two the front side of first bull stick (4) all is provided with push rod (5), two bar mouth has all been seted up on the surface of push rod (5), two the outside of U type brush board (6) all is provided with fixed plate (7), two the inboard one end of fixed plate (7) all is connected with the lateral wall fixed connection of oil tank (1) all with the lateral wall fixed plate (3), two the front end of two round pin (8) all are connected with two round pin (8) respectively through the round pin (8) of the front end of two round pin (8) respectively, the two first gears (10) are fixedly sleeved with the rear end rod walls of the corresponding first rotating rods (3), the rear side of the oil tank (1) is provided with second gears (12) which are positioned on the inner sides of the two first gears (10), the middle parts of the two second gears (12) are fixedly sleeved with second rotating rods (11), one ends of the two second rotating rods (11) close to the oil tank (1) are rotatably connected with the rear side wall of the oil tank (1) through third rolling bearings, the two first gears (10) are in meshed connection with the corresponding second gears (12), the middle part of the rear side of the oil tank (1) is provided with two side plates (15), one ends of the two side plates (15) close to the oil tank (1) are fixedly connected with the rear side wall of the oil tank (1), and a transmission mechanism for driving the two second gears (12) to rotate is arranged between the two side plates (15);
The transmission mechanism comprises a sliding plate (13) and racks (14), a reciprocating screw rod (16) is arranged between two side plates (15), two ends of the reciprocating screw rod (16) are respectively and rotatably connected with the inner side walls of the corresponding side plates (15) through fourth rolling bearings, a motor (17) is arranged on the lower side of each side plate (15), the output end of each motor (17) is fixedly connected with the lower end of each reciprocating screw rod (16), the sliding plate (13) is arranged between the two side plates (15), the middle end of each sliding plate (13) is in threaded sleeve joint with the rod wall of each reciprocating screw rod (16), vertical rods (14) are respectively and fixedly connected with one end of each corresponding sliding plate (13), two racks (21) are respectively and fixedly arranged on the outer side rod wall of each corresponding vertical rod (14), and the two racks (21) are respectively and meshed with the corresponding second gears (12);
Slide bars (18) are arranged between the two side plates (15) and positioned on two sides of the reciprocating screw rod (16), the two slide bars (18) penetrate through the slide plate (13), and two ends of the two slide bars (18) are fixedly connected with the corresponding side plates (15);
the front ends of the round pins (8) at both sides are fixedly sleeved with baffle rings (9).
2. A novel 220kV three-phase integrated traction transformer according to claim 1, characterized in that: the motor (17) is fixedly connected with the corresponding side plate (15) through a fixing frame.
3. A novel 220kV three-phase integrated traction transformer according to claim 1, characterized in that: a plurality of clamping grooves (20) are formed in two side walls of the inner portion of the U-shaped brush plate (6).
4. A novel 220kV three-phase integrated traction transformer according to claim 1, characterized in that: the two sides of the U-shaped brush plate (6) are provided with water absorbing cotton (19), and the water absorbing cotton (19) is fixedly connected with the U-shaped brush plate (6) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499407.XA CN114093610B (en) | 2021-12-09 | 2021-12-09 | Novel 220kV three-phase integrated traction transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111499407.XA CN114093610B (en) | 2021-12-09 | 2021-12-09 | Novel 220kV three-phase integrated traction transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114093610A CN114093610A (en) | 2022-02-25 |
| CN114093610B true CN114093610B (en) | 2024-05-31 |
Family
ID=80307224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111499407.XA Active CN114093610B (en) | 2021-12-09 | 2021-12-09 | Novel 220kV three-phase integrated traction transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114093610B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202067643U (en) * | 2010-12-30 | 2011-12-07 | 天威云南变压器股份有限公司 | Single-phase traction transformer |
| CN208507390U (en) * | 2018-08-28 | 2019-02-15 | 江苏旭翔变压器有限公司 | A kind of easy-to-dismount oil-immersed transformer |
| CN112466616A (en) * | 2020-11-04 | 2021-03-09 | 江苏永刚电力设备有限公司 | Oil-immersed transformer capable of cleaning impurities |
| CN112670029A (en) * | 2020-12-02 | 2021-04-16 | 安徽电缆股份有限公司 | Wire core traction stretcher for processing ribbon cable |
| CN213716670U (en) * | 2020-12-30 | 2021-07-16 | 江西成功电气有限公司 | Corrugated heat dissipation structure of oil immersed transformer |
| CN213813848U (en) * | 2020-12-11 | 2021-07-27 | 深圳市长坪盛电子有限公司 | Intelligent tester for coil impulse voltage of transformer and reactor |
| CN113178309A (en) * | 2021-03-15 | 2021-07-27 | 杨晓伟 | Box-type transformer with heat dissipation function and application thereof |
| CN113270255A (en) * | 2021-05-19 | 2021-08-17 | 安徽龙和电力集团有限公司 | Oil-immersed ring network combined transformer |
| CN214336525U (en) * | 2021-04-01 | 2021-10-01 | 何传坤 | Transformer lead wire structure |
| CN113724971A (en) * | 2021-08-27 | 2021-11-30 | 朱修伟 | Pneumatic oil-discharging type deposition-preventing circulating refrigeration type oil-immersed transformer |
| CN216871721U (en) * | 2021-12-09 | 2022-07-01 | 天威保变(合肥)变压器有限公司 | Novel 220kV three-phase integrated traction transformer |
-
2021
- 2021-12-09 CN CN202111499407.XA patent/CN114093610B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202067643U (en) * | 2010-12-30 | 2011-12-07 | 天威云南变压器股份有限公司 | Single-phase traction transformer |
| CN208507390U (en) * | 2018-08-28 | 2019-02-15 | 江苏旭翔变压器有限公司 | A kind of easy-to-dismount oil-immersed transformer |
| CN112466616A (en) * | 2020-11-04 | 2021-03-09 | 江苏永刚电力设备有限公司 | Oil-immersed transformer capable of cleaning impurities |
| CN112670029A (en) * | 2020-12-02 | 2021-04-16 | 安徽电缆股份有限公司 | Wire core traction stretcher for processing ribbon cable |
| CN213813848U (en) * | 2020-12-11 | 2021-07-27 | 深圳市长坪盛电子有限公司 | Intelligent tester for coil impulse voltage of transformer and reactor |
| CN213716670U (en) * | 2020-12-30 | 2021-07-16 | 江西成功电气有限公司 | Corrugated heat dissipation structure of oil immersed transformer |
| CN113178309A (en) * | 2021-03-15 | 2021-07-27 | 杨晓伟 | Box-type transformer with heat dissipation function and application thereof |
| CN214336525U (en) * | 2021-04-01 | 2021-10-01 | 何传坤 | Transformer lead wire structure |
| CN113270255A (en) * | 2021-05-19 | 2021-08-17 | 安徽龙和电力集团有限公司 | Oil-immersed ring network combined transformer |
| CN113724971A (en) * | 2021-08-27 | 2021-11-30 | 朱修伟 | Pneumatic oil-discharging type deposition-preventing circulating refrigeration type oil-immersed transformer |
| CN216871721U (en) * | 2021-12-09 | 2022-07-01 | 天威保变(合肥)变压器有限公司 | Novel 220kV three-phase integrated traction transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114093610A (en) | 2022-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216871721U (en) | Novel 220kV three-phase integrated traction transformer | |
| CN114093610B (en) | Novel 220kV three-phase integrated traction transformer | |
| CN216537697U (en) | Zeolite runner exhaust-gas treatment equipment convenient to maintain | |
| CN113102323B (en) | Special cleaning equipment of transformer | |
| CN209963499U (en) | High-temperature-prevention energy-saving high-voltage switch cabinet | |
| CN208929357U (en) | A kind of environmental protection aluminium cutting equipment | |
| CN217588625U (en) | Forced oil circulation air cooler for transformer | |
| CN212968749U (en) | Fixed AC low-voltage power distribution cabinet | |
| CN212821253U (en) | Transformer cleaning device | |
| CN111969813B (en) | Motor rotor winding equipment | |
| CN208663269U (en) | A kind of electromagnet production iron core cutter device | |
| CN115332951B (en) | Intelligent temperature and humidity regulation switch cabinet based on Internet of things | |
| CN207773838U (en) | A kind of frequency converter sale storage bin easy to remove | |
| CN207691597U (en) | A kind of cleaning device of duster motor shaft | |
| CN217209830U (en) | Multifunctional air heater | |
| CN215934211U (en) | Clean type data center UPS cabinet of electrification | |
| CN219776166U (en) | Uniform drying device based on transformer | |
| CN221146157U (en) | Lubricating device for glass cutting machine | |
| CN219449197U (en) | Maintenance equipment for steam turbine generator | |
| CN220291889U (en) | High-voltage reactance soft start cabinet convenient for installation of internal devices | |
| CN220403009U (en) | Belt cleaning device is used in processing of dehydrated vegetables | |
| CN220809206U (en) | Adjustable slide rail device | |
| CN220851700U (en) | Lubricating oil cooling device | |
| CN219627178U (en) | American box transformer equipment convenient to installation | |
| CN211958443U (en) | Movable high-low voltage switch cabinet with monitoring function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |