CN113270261A - Transformer substation is with fixed transformer core group of fast assembly - Google Patents
Transformer substation is with fixed transformer core group of fast assembly Download PDFInfo
- Publication number
- CN113270261A CN113270261A CN202110824664.XA CN202110824664A CN113270261A CN 113270261 A CN113270261 A CN 113270261A CN 202110824664 A CN202110824664 A CN 202110824664A CN 113270261 A CN113270261 A CN 113270261A
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- iron core
- core group
- fixed
- transformer substation
- bottom plate
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000000758 substrate Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
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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 substations, and discloses a transformer core group for quick combination and fixation of a transformer substation. According to the invention, in the downward moving process of the bottom plate, the two push rods at the bottom of the bottom plate are matched with the moving through holes in the swing support arm to extrude the swing support arm, the swing support arm drives the side support posts to rotate through the second pin shaft, three groups of arc-shaped clamps on the two side support posts are clamped and fixed on the iron core group, the stability of the iron core group is ensured, the threaded screw rod is rotated through the first pin shaft and clamped in the clamping groove on the other side support post, and the rotary butterfly nut is tightly attached to the side support posts, so that the stability of the two side support posts is ensured, and the operation is convenient and rapid.
Description
Technical Field
The invention relates to the technical field of transformer substations, in particular to a transformer core group which is quickly combined and fixed for a transformer substation.
Background
Currently, the iron core is the main magnetic circuit part in the transformer. Usually made by stacking hot-rolled or cold-rolled silicon steel sheets containing silicon in a high content and coated with an insulating varnish on their surface. The iron core and the coil wound on the iron core form a complete electromagnetic induction system. The size of power transformer transmission power depends on the material and the cross-sectional area of iron core, and traditional transformer iron core group mounting bracket is mostly fixed between the top and the bottom of passing through roof-rack and chassis to transformer iron core group.
However, the prior technical scheme explored by the inventor still has at least the following defects:
the iron core group among the prior art all needs one step steel sheet and bolt cooperation equipment iron core and iron core base and footstock in carrying out the installation, and this kind of assembly mode leads to assembling efficiency at actual assembly iron core group in-process problem comparatively low.
Disclosure of Invention
The invention aims to provide a transformer core group which is used for quickly combining and fixing a transformer substation, and solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a transformer core group for a transformer substation, which is quickly combined and fixed, comprises a base plate and a bottom plate movably lapped on the base plate, wherein a groove is formed in the base plate, a spring sleeve is fixed at the top of the groove of the base plate, and an inverted T-shaped pressure rod is inserted into the upper part of the spring sleeve;
the groove on the base plate is movably hinged with the lower parts of the side pillars through a second pin shaft, the number of the side pillars is two, the lower parts of the side pillars are fixedly provided with swing support arms, and the swing support arms are provided with moving openings; two rectangular openings are formed in the bottom plate, and the two side pillars respectively penetrate through the two rectangular openings;
the upper parts of the two side supports are respectively provided with a clamping groove opening, and a threaded screw rod is movably hinged in the clamping groove opening of one side support through a first pin shaft; two equal horizontal fixedly connected with a set of xarm of two about one side in opposite directions of collateral branch post, every group the xarm is two, every group the equal fixedly connected with arc clamp that three equidistance distributes in the opposite side of xarm, the joint has the iron core group between two arc clamps of vertical alignment.
In a preferred embodiment of the present invention, the base plate has a plurality of positioning holes equidistantly distributed on both ends thereof.
As a preferred embodiment of the present invention, the middle position of the bottom plate is vertically fixed to the upper end of the inverted T-shaped compression bar; the spring is movably inserted in the inner cavity of the spring sleeve.
As a preferred embodiment of the present invention, two pushing rods are fixed at the bottom of the bottom plate, and the two pushing rods are respectively movably connected with the moving through holes of the two swing support arms.
In a preferred embodiment of the invention, the other end of the threaded screw rod is movably clamped in the clamping groove at the upper part of the other side pillar, and a butterfly nut is screwed and sleeved at the outer end part of the threaded screw rod in a threaded manner.
As a preferred embodiment of the invention, two arc-shaped hoops positioned on the same horizontal plane are aligned and spliced with each other, and a rubber pad is fixedly adhered to the inner wall of each arc-shaped hoop.
As a preferred embodiment of the invention, three circular slotted holes which are distributed at equal intervals are vertically and upwards arranged at the upper part of the bottom plate, and the lower end parts of the iron core groups are movably inserted in the circular slotted holes.
As a preferred embodiment of the present invention, the middle parts of two adjacent iron core groups are fixedly connected by a connecting rod.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the transformer iron core group capable of being quickly combined and fixed for the transformer substation, two side supports are obliquely distributed on the base plate in an initial state, when the iron core group is installed, an operator can directly insert the iron core group into the circular groove on the bottom plate, at the moment, the bottom plate is pressed downwards under the action of gravity of the iron core group, the bottom plate extrudes a spring through the inverted T-shaped pressure rod matched with the spring sleeve, the bottom plate is guaranteed to move downwards in a buffering mode, and the problem that the side supports swing quickly when the iron core group is put down and potential safety hazards of injuring people are solved.
2. According to the transformer iron core group capable of being quickly combined and fixed for the transformer substation, two push rod pairs at the bottom of the bottom plate are matched with a moving through hole in the swing support arm to extrude the swing support arm in the moving-down process of the bottom plate, the swing support arm drives the side support post to rotate through the second pin shaft, the swing position of the side support post is adjusted on the rectangular opening, three groups of arc-shaped clamps on the two side support posts are clamped and fixed to the iron core group, so that the stability of the iron core group is guaranteed, finally an operator rotates the threaded screw rod through the first pin shaft and clamps the threaded screw rod in the clamping groove on the other side support post, the rotary butterfly nut is tightly attached to the side support post, so that the stability of the two side support posts is guaranteed, and the operation is very convenient and quick.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a front view of a fast assembled and fixed transformer core assembly for a transformer substation according to the present invention;
FIG. 2 is a schematic diagram of the distribution position of the arc-shaped clamps of the transformer core assembly for quick assembly and fixation of the transformer substation according to the present invention;
FIG. 3 is a schematic diagram of a side view cross-sectional structure of a transformer core assembly for quick assembly and fixation in a transformer substation according to the present invention;
fig. 4 is a schematic diagram of an enlarged structure C in fig. 3 of the transformer core assembly for quick assembly and fixation in a transformer substation according to the present invention;
fig. 5 is an enlarged schematic structural diagram of a transformer core group for quick assembly and fixation of a transformer substation at the position B in fig. 3 according to the present invention;
fig. 6 is an enlarged schematic structural diagram of a transformer core assembly fixed by quick assembly in a transformer substation according to the present invention at a position a in fig. 2.
In the figure: 1. a substrate; 2. a circular notch; 3. positioning holes; 4. a rectangular opening; 5. a base plate; 6. an arc-shaped hoop; 7. a rubber pad; 8. a butterfly nut; 9. clamping the notch; 10. a threaded lead screw; 11. a first pin shaft; 12. a side strut; 13. a cross arm; 14. an inverted T-shaped compression bar; 15. a spring sleeve; 16. a spring; 17. a second pin shaft; 18. swinging the support arm; 19. a groove; 20. moving the through opening; 21. a push rod; 22. an iron core group; 23. a connecting rod.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the type of the electrical appliance provided by the invention is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.
Referring to fig. 1-6, the present invention provides a technical solution: a transformer core group for fast combination and fixation of a transformer substation comprises a base plate 1 and a bottom plate 5 movably lapped on the base plate 1, wherein a groove 19 is formed in the base plate 1, a spring sleeve 15 is fixed at the top of the groove 19 of the base plate 1, an inverted T-shaped pressure rod 14 is inserted into the upper part of the spring sleeve 15, and the inverted T-shaped pressure rod 14 can ensure extrusion of a spring 16 and is relatively stable;
the groove 19 on the base plate 1 is movably hinged with the lower part of the side pillar 12 through a second pin shaft 17, the side pillars 12 are two, the right side of the lower part of the side pillar 12 is obliquely and integrally fixedly connected with a swing support arm 18, and a moving through opening 20 is formed in the swing support arm 18; two rectangular openings 4 are formed in the bottom plate 5, the two side pillars 12 penetrate through the two rectangular openings 4 respectively, and the rectangular openings 4 can ensure that the side pillars 12 can stably swing and can laterally support the side pillars 12;
clamping notches 9 are formed in the upper portions of the two side supports 12, and a threaded screw rod 10 is movably hinged in the clamping notch 9 of one side support 12 through a first pin shaft 11; the upper portion and the lower portion of one side of each of the two side supports 12 opposite to each other are fixedly connected with a set of cross arms 13 horizontally, each set of cross arms 13 is two, one side of each set of cross arms 13 opposite to each other is fixedly connected with three arc-shaped clamps 6 distributed at equal intervals, and an iron core group 22 is clamped between the two vertically aligned arc-shaped clamps 6.
In this embodiment, in an initial state, the two side pillars 12 are obliquely distributed on the base plate 1, when the iron core set 22 is installed, an operator can directly insert the iron core set 22 into the circular notch 2 on the bottom plate 5, at this time, since the bottom plate 5 is pressed down under the action of gravity of the iron core set 22, at this time, the bottom plate 5 extrudes the spring 16 through the inverted T-shaped pressing rod 14 in cooperation with the spring sleeve 15, and the bottom plate 5 is guaranteed to move downwards in a buffering manner; two pushing rods 21 at the bottom of the bottom plate 5 are matched with a moving through opening 20 on a swinging support arm 18 to extrude the swinging support arm in the moving process of the bottom plate 5, the swinging support arm 18 at the moment drives the side support columns 12 to rotate through a second pin shaft 17, the side support columns 12 are rotatably inserted into the rectangular opening 4 of the bottom plate 5, and three groups of arc-shaped clamps 6 on the two side support columns 12 are clamped and fixed on the iron core group 22, so that the stability of the iron core group 22 is ensured, finally an operator rotates the threaded screw rod 10 through the first pin shaft 11 and is clamped in the clamping notch 9 on the other side support column 12, the rotary butterfly nut 8 is tightly attached to the side support columns 12, so that the stability of the two side support columns 12 is ensured, the operation is very convenient and fast, and the iron core group 22 in the prior art is prevented from being assembled by matching steel plates and bolts in one step in the installation process, not only wastes time and labor, but also causes manual waste.
In a specific embodiment, a plurality of locating holes 3 which are distributed at equal intervals are formed in the two end parts of the base plate 1, so that an operator can conveniently fix the base plate 1 in a shell of a transformer through the locating holes 3, and the middle position of the bottom plate 5 is vertically fixed with the upper end part of the inverted T-shaped pressure rod 14; it has spring 16 to be located the activity of spring sleeve 15 inner chambers and peg graft, spring 16 can guarantee the later stage when carrying out dismouting iron core group 22, when operating personnel hoists iron core group 22, bottom plate 5 can reset under spring 16's effect, and guarantee that two collateral branch posts 12 also can reset to the tilt state, the secondary installation of being convenient for, the spring 16 of setting can also avoid under the condition that does not have the spring, can lead to the collateral branch post to swing fast when putting down iron core group, there is the potential safety hazard problem of hindering the people.
Further, be located 5 bottoms of bottom plate and be fixed with two catch bars 21, two catch bar 21 respectively with the removal opening 20 swing joint of swing support arm 18, screw lead screw 10 other end activity joint is in the joint notch 9 on another one collateral branch post 12 upper portion to the outer tip screw thread of screw lead screw 10 is twisted and is cup jointed butterfly nut 8, operating personnel rotates screw lead screw 10 through first round pin axle 11 and joint in the joint notch 9 on another collateral branch post 12, thereby rotatory butterfly nut 8 and collateral branch post 12 closely laminate and guarantee the stability of two collateral branch posts 12.
Further, be located two of same horizontal plane arc clamp 6 aligns the concatenation each other, is located the fixed rubber pad 7 that bonds in 6 inner walls of arc clamp, can play buffering and insulating effect, improve the security, be located the vertical circular slot 2 that upwards offers three equidistance and distributes in 5 upper portions of bottom plate, the activity is pegged graft in circular slot 2 under the iron core group 22, the middle part all passes through connecting rod 23 fixed connection between two adjacent iron core groups 22, circular slot 2 can guarantee that operating personnel is preliminary aligns iron core group 22 on bottom plate 5, avoid the later stage to cause the problem that arc clamp 6 docks not go up iron core group 22.
It should be noted that, the invention is a transformer core group for fast combination and fixation of a transformer substation, each component is a universal standard component or a component known by those skilled in the art, and the structure and principle of the transformer core group can be known by those skilled in the art through technical manuals or through routine experimental methods.
The working principle is as follows: in an initial state, the two side pillars 12 are obliquely distributed on the base plate 1, when the iron core group 22 is installed, an operator can directly insert the iron core group 22 into the circular notch 2 on the bottom plate 5, at the moment, because the bottom plate 5 is pressed down under the action of the gravity of the iron core group 22, at the moment, the bottom plate 5 extrudes the spring 16 through the inverted T-shaped pressure rod 14 and the spring sleeve 15, and the bottom plate 5 is guaranteed to move downwards in a buffering manner; two pushing rods 21 at the bottom of the bottom plate 5 are matched with a moving through hole 20 on a swinging support arm 18 to extrude the swinging support arm in the moving process of the bottom plate 5, the swinging support arm 18 drives the side support 12 to rotate through a second pin shaft 17, the angle of the side support 12 is adjusted on the rectangular opening 4, three groups of arc-shaped clamps 6 on the two side supports 12 are clamped and fixed on the iron core group 22, so that the stability of the iron core group 22 is ensured, finally an operator rotates the threaded lead screw 10 through the first pin shaft 11 and clamps the threaded lead screw in the clamping notch 9 on the other side support 12, the rotary butterfly nut 8 is tightly attached to the side support 12, so that the stability of the two side supports 12 is ensured, the operation is very convenient and fast, the condition that the iron core group 22 in the prior art needs to be assembled by steel plates and bolts in a one-step matching mode in the installation process is avoided, time and labor are wasted, and also causes a problem of labor waste.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a transformer substation is with fixed transformer core group of fast assembly which characterized in that: the spring pressing plate comprises a substrate (1) and a bottom plate (5) movably lapped on the substrate (1), wherein a groove (19) is formed in the substrate (1), a spring sleeve (15) is fixed at the top of the groove (19) in the substrate (1), and an inverted T-shaped pressing rod (14) is inserted into the upper portion of the spring sleeve (15);
the groove (19) on the base plate (1) is movably hinged with the lower part of the side support (12) through a second pin shaft (17), the number of the side supports (12) is two, the lower part of the side support (12) is fixedly provided with a swing support arm (18), and the swing support arm (18) is provided with a moving port (20); two rectangular openings (4) are formed in the bottom plate (5), and the two side pillars (12) penetrate through the two rectangular openings (4) respectively;
clamping notches (9) are formed in the upper parts of the two side supports (12), and a threaded screw rod (10) is movably hinged in the clamping notch (9) of one side support (12) through a first pin shaft (11); two equal level fixedly connected with a set of xarm (13) in two parts about one side in opposite directions of collateral branch post (12), every group xarm (13) are two, every group equal fixedly connected with three equidistance arc clamp (6) that distribute in xarm (13) one side in opposite directions, and the joint has iron core group (22) between two arc clamp (6) of vertical alignment.
2. The transformer substation iron core group capable of being rapidly combined and fixed according to claim 1, is characterized in that: the upper surfaces of two end parts of the base plate (1) are respectively provided with a plurality of positioning holes (3) which are distributed at equal intervals.
3. The transformer substation iron core group capable of being rapidly combined and fixed according to claim 1, is characterized in that: the middle position of the bottom plate (5) is vertically fixed with the upper end of the inverted T-shaped pressure lever (14); a spring (16) is movably inserted in the inner cavity of the spring sleeve (15).
4. The transformer substation iron core group capable of being rapidly combined and fixed according to claim 1, is characterized in that: two pushing rods (21) are fixed at the bottom of the bottom plate (5), and the two pushing rods (21) are respectively movably connected with the moving through holes (20) of the two swing support arms (18).
5. The transformer substation iron core group capable of being rapidly combined and fixed according to claim 1, is characterized in that: the other end of the threaded screw rod (10) is movably clamped in a clamping notch (9) at the upper part of the other side pillar (12), and a butterfly nut (8) is screwed and sleeved at the outer end part of the threaded screw rod (10).
6. The transformer substation iron core group capable of being rapidly combined and fixed according to claim 1, is characterized in that: two that are located same horizontal plane arc clamp (6) align the concatenation each other, are located arc clamp (6) inner wall is fixed to be adhered with rubber pad (7).
7. The transformer substation iron core group capable of being rapidly combined and fixed according to claim 1, is characterized in that: three circular notches (2) which are distributed at equal intervals are vertically and upwards arranged at the upper part of the bottom plate (5), and the lower end part of the iron core group (22) is movably inserted in the circular notches (2).
8. The transformer substation iron core group capable of being rapidly combined and fixed according to claim 1, is characterized in that: the middle parts of the two adjacent iron core groups (22) are fixedly connected through a connecting rod (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110824664.XA CN113270261B (en) | 2021-07-21 | 2021-07-21 | Transformer substation is with fixed transformer core group of fast assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110824664.XA CN113270261B (en) | 2021-07-21 | 2021-07-21 | Transformer substation is with fixed transformer core group of fast assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113270261A true CN113270261A (en) | 2021-08-17 |
| CN113270261B CN113270261B (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110824664.XA Active CN113270261B (en) | 2021-07-21 | 2021-07-21 | Transformer substation is with fixed transformer core group of fast assembly |
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| CN110718360A (en) * | 2019-11-16 | 2020-01-21 | 衡阳市华仪电力互感器有限公司 | Mutual inductor case convenient to installation |
| CN110797173A (en) * | 2019-10-25 | 2020-02-14 | 江苏蜀铭电气设备有限公司 | Transformer iron core group fixing and mounting frame |
| CN210956345U (en) * | 2019-11-05 | 2020-07-07 | 钟杰 | Oil-immersed transformer of power distribution station |
| CN112002534A (en) * | 2020-08-20 | 2020-11-27 | 国网山东省电力公司龙口市供电公司 | Winding device for transformer core |
| CN213303812U (en) * | 2020-08-13 | 2021-05-28 | 曹璐璐 | Quick transformer fixing mechanism |
| CN213519529U (en) * | 2020-12-23 | 2021-06-22 | 哈尔滨变压器有限责任公司 | Transformer iron core |
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2021
- 2021-07-21 CN CN202110824664.XA patent/CN113270261B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006339230A (en) * | 2005-05-31 | 2006-12-14 | Toyota Industries Corp | Mounting structure of coil device |
| KR20170003301U (en) * | 2016-03-15 | 2017-09-25 | 엘에스산전 주식회사 | Device for supporting local control panel of transformer |
| CN107993805A (en) * | 2018-01-24 | 2018-05-04 | 安吉晶圣光伏发电有限公司 | A kind of convenient fixing device of transformer |
| CN207834082U (en) * | 2018-01-31 | 2018-09-07 | 黑龙江三江变压器有限公司 | A kind of transformer core clamp |
| CN209216698U (en) * | 2018-08-31 | 2019-08-06 | 科润智能控制股份有限公司 | A kind of mounting rack of transformer-cabinet |
| CN110797173A (en) * | 2019-10-25 | 2020-02-14 | 江苏蜀铭电气设备有限公司 | Transformer iron core group fixing and mounting frame |
| CN210956345U (en) * | 2019-11-05 | 2020-07-07 | 钟杰 | Oil-immersed transformer of power distribution station |
| CN110718360A (en) * | 2019-11-16 | 2020-01-21 | 衡阳市华仪电力互感器有限公司 | Mutual inductor case convenient to installation |
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| CN112002534A (en) * | 2020-08-20 | 2020-11-27 | 国网山东省电力公司龙口市供电公司 | Winding device for transformer core |
| CN213519529U (en) * | 2020-12-23 | 2021-06-22 | 哈尔滨变压器有限责任公司 | Transformer iron core |
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| Publication number | Publication date |
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| CN113270261B (en) | 2021-10-08 |
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Denomination of invention: A fast combination fixed transformer core group for substations Granted publication date: 20211008 Pledgee: Jiujiang Bank Co.,Ltd. Yangming Branch Pledgor: JIANGXI BROAD SCI-TECH CO.,LTD. Registration number: Y2024980005842 |
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