CN216145494U - Fixing device for phase partition plate of three-phase three-dimensional coiled iron core dry-type transformer and application structure of fixing device - Google Patents
Fixing device for phase partition plate of three-phase three-dimensional coiled iron core dry-type transformer and application structure of fixing device Download PDFInfo
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- CN216145494U CN216145494U CN202120756485.2U CN202120756485U CN216145494U CN 216145494 U CN216145494 U CN 216145494U CN 202120756485 U CN202120756485 U CN 202120756485U CN 216145494 U CN216145494 U CN 216145494U
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Abstract
The utility model provides a fixing device for a phase partition plate of a three-phase three-dimensional wound core dry-type transformer and an application structure of the fixing device, and belongs to the technical field of transformers. The fixing device comprises an upper clamping piece and a lower clamping piece which are arranged oppositely up and down, and a central supporting rod and an outer supporting rod which are positioned between the upper clamping piece and the lower clamping piece; two ends of the central supporting rod and the outer supporting rod are respectively and fixedly connected with an upper clamping piece and a lower clamping piece; the number of the outer supporting rods is at least one corresponding to each interval plate; the outer support rods are distributed on the periphery of the central support rod; each outer supporting rod is provided with at least one first fixing piece for fixedly connecting the side part of one side of each interval plate; the central support rod is provided with a second fixing piece for fixedly connecting the side part of the other side of each phase partition plate. The device simple structure, fixed effectual can optimize interphase insulation betterly, reduces interphase distance and avoids the vibration noise of interphase partition board.
Description
Technical Field
The utility model relates to a fixing device for a phase partition plate of a three-phase three-dimensional coiled iron core dry-type transformer and an application structure of the fixing device, and belongs to the technical field of dry-type transformers.
Background
The transformer is one of important electrical equipment, and the excellent insulation quality is the key for ensuring the safe operation of the transformer. The dry type transformer is insulated without air, so that the insulation distance is large, the interphase distance is large, and particularly, the interphase distance is larger in an open type dry type transformer and a product with a voltage class of more than 10 kV. In order to reduce the distance between phases, a phase separation plate is usually added to achieve the effect of cutting off air and increasing the creepage distance. However, the phase separation plates of the three-dimensional wound core transformer are not fixed well in practical application.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a fixing device for a phase partition plate of a three-phase three-dimensional wound core dry-type transformer and an application structure thereof, which are used for solving the problem that the phase partition plate of the three-phase three-dimensional wound core dry-type transformer is not fixed in practical application.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:
on one hand, the utility model provides a fixing device for a phase partition plate of a three-phase three-dimensional coiled iron core dry-type transformer, which comprises an upper clamping piece and a lower clamping piece which are oppositely arranged up and down, and a central support rod and an outer support rod which are positioned between the upper clamping piece and the lower clamping piece; two ends of the central supporting rod and the outer supporting rod are respectively and fixedly connected with an upper clamping piece and a lower clamping piece;
the number of the outer supporting rods is at least one corresponding to each interval plate; the outer support rods are distributed on the periphery of the central support rod;
each outer supporting rod is provided with at least one first fixing piece for fixedly connecting the side part of one side of each interval plate in an insulating way; and the central support rod is provided with a second fixing piece for fixedly connecting the side parts of the other sides of the phase separation plates in an insulating way.
Furthermore, the upper clamping piece and the lower clamping piece respectively comprise three fixed edges, the three fixed edges or extension lines thereof enclose a regular triangle, and a first supporting plate is arranged in the middle of the regular triangle area;
the two ends of the central supporting rod are respectively and fixedly connected with the middle parts of the first supporting plates of the upper clamping piece and the lower clamping piece; the middle part of each fixed edge is respectively and fixedly connected with the end part of one outer supporting rod.
Furthermore, the central support rod is fixedly connected to the central position of the first support plate, and the outer support rod is fixedly connected to the outer side of the central position of the fixed edge;
a second supporting plate fixed through a vertical reinforcing rib is arranged on the outer side of the middle part of each fixed side; the end part of the outer supporting rod penetrates through and is fixedly connected with the second supporting rod.
Furthermore, the second fixing part comprises a through hole matched with the central support rod and clamping grooves uniformly distributed on the periphery of the second fixing part, and the clamping grooves are used for clamping and fixing the phase partition plates;
the number of the clamping grooves is that at least one clamping groove is arranged corresponding to each phase partition plate respectively and used for clamping and fixing the phase partition plates with indefinite number on the central support rod;
the quantity of second mounting is two the second mounting is established respectively on the central support pole corresponding the upper and lower both ends of looks space bar, two the second mounting is used for the upper and lower both ends of fixed looks space bar.
Furthermore, an insulating support tube is sleeved on the central support rod below the second fixing piece, and the outer diameter of the insulating support tube is larger than the aperture of the through hole in the second fixing piece and is used for supporting the second fixing piece and preventing the second fixing piece from loosening and falling off;
the number of the insulating support pipes is that at least one insulating support pipe is arranged below each second fixing piece respectively and used for positioning the second fixing pieces at a proper height to clamp and fix the phase partition boards.
Furthermore, the first fixing part comprises a first fixing part and a second fixing part, the middle parts of the first fixing part and the second fixing part are provided with mutually matched bending parts for clamping and fixing the outer supporting rod, and two sides of the first fixing part are respectively provided with a first through hole and a second through hole for penetrating through the first fixing part and the second fixing part; a third through hole for fixedly connecting the phase partition plates is formed in one side, away from the first through hole, of the second fixing part;
on each outer bracing piece, the quantity of first mounting is two, two first mounting is fixed respectively from top to bottom on the outer bracing piece for fix the upper and lower both ends of each looks division board.
Furthermore, a layer of insulating heat-shrinkable sleeve is sleeved on the outer support rod and the central support rod and used for optimizing interphase insulation.
Furthermore, the first fixing piece and the second fixing piece are epoxy glass cloth laminated boards, diphenyl ether glass cloth boards and polyimide glass cloth boards.
On the other hand, the utility model provides an application structure of a fixing device of a phase partition plate of a three-phase three-dimensional wound iron core dry-type transformer, which comprises the fixing device, the phase partition plate and the transformer, and is characterized in that one side of each phase partition plate is fixed on a central supporting rod by a second fixing piece in an insulation connection mode, the other side of each phase partition plate is fixed on each outer supporting rod by a first fixing piece in an insulation connection mode, and gaps of 5-8mm are respectively formed between the upper end and the lower end of each phase partition plate and an upper iron yoke and a lower iron yoke of a transformer iron core.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a fixing device suitable for phase partition plates of a three-phase three-dimensional wound iron core dry-type transformer, which is characterized in that one side of each phase partition plate is fixed through a second fixing piece fixed on a central screw rod, and the other side of each phase partition plate is fixed through a first fixing piece fixed on an outer support rod, so that the phase partition plates are fixed.
Meanwhile, in the utility model, the central support rod, the outer support rod and the phase partition plate are fixedly connected in an insulating way, the central support rod is provided with the insulating support tube, and the central support rod and the outer support rod are provided with insulating heat-shrinkable sleeves and the like, so that the phase insulation can be better optimized.
Drawings
FIG. 1 is a schematic structural view of a fixing device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a second fixing element of the fixing device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of a first fixing element of the fixing device of the present invention;
in the figure, 1, an upper clamping piece; 2, a central support rod; 3 outer support rods; 4 insulating a heat-shrinkable sleeve; 5, a second fixing piece, 5-1 through holes, 5-2 clamping grooves, 5-3 upper second fixing pieces and 5-4 lower second fixing pieces; 6 a first fixing part, 6-1 a first fixing part and 6-2 a second fixing part; 7 insulating support tubes, 7-1 first insulating support tubes, 7-2 second insulating support tubes; 8 phase partition plates; and 9, a lower clamping piece.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Example one
As shown in fig. 1, the embodiment provides a fixing device for an inter-phase partition of a three-phase three-dimensional wound core dry-type transformer, which includes an upper clamping piece 1 and a lower clamping piece 9, which are oppositely arranged, and a central support rod 2 and an outer support rod 3, which are located between the upper clamping piece 1 and the lower clamping piece 9; two ends of the central support rod 2 and the outer support rod 3 are respectively and fixedly connected with an upper clamping piece 1 and a lower clamping piece 9;
in this embodiment, the outer support rods 3 are provided with three outer support rods 3 corresponding to three spaced plates 8, the central support rod 2 is fixedly connected to the middle portions of the upper clamp 1 and the lower clamp 9, and the three outer support rods 3 are distributed and arranged relative to the central support rod 2 and are located on the periphery of the central support rod 2.
In this embodiment, the three outer support rods 3 are all provided with at least one first fixing piece 6 for fixedly connecting one side part of the interval plate 8; and a second fixing member 5 for fixedly connecting the other side portions of the spaced plates 8 is also provided on the central support rod 2.
The fixing device for the phase partition plate of the three-phase three-dimensional wound core dry-type transformer has the characteristics of simple structure, easiness in operation and good fixing effect, can better optimize phase insulation, reduces the phase distance and reduces vibration additional noise of the phase partition plate.
Example two
FIG. 1 is a schematic block diagram of a fixture according to one embodiment of the present invention. The embodiment provides a fixing device for an inter-phase partition plate of a three-phase three-dimensional wound core dry-type transformer, which comprises an upper clamping piece 1 and a lower clamping piece 9, wherein the upper clamping piece 1 and the lower clamping piece 9 are arranged oppositely up and down. Specifically, the upper clamping piece 1 and the lower clamping piece 9 respectively comprise three fixed edges, the three fixed edges or extension lines thereof enclose a regular triangle, and a first supporting plate is arranged in the middle of the regular triangle area; and the outer side of the middle part of each fixed edge is provided with a second supporting plate fixed by a vertical reinforcing rib.
In this embodiment, the clamping device further comprises a central support rod 2 and an outer support rod 3 which are positioned between the upper clamping piece 1 and the lower clamping piece 9, referring to fig. 1, the cross section of the first support plate is in the shape of a regular triangle, three side edges of the first support plate are parallel to three fixed edges of the upper clamping piece and the lower clamping piece, a plurality of through holes are distributed on the first support plate, and two ends of the central support rod 2 are respectively and fixedly connected with the middle parts of the first support plate of the upper clamping piece 1 and the lower clamping piece 9;
the second backup pad is the rectangle backup pad, be equipped with a plurality of through-holes in the rectangle backup pad, the both ends of outer bracing piece 3 run through the through-hole and fixed connection in the second backup pad, in this embodiment, set up three through-hole in the rectangle backup pad, but actual trompil quantity is decided along with the length of rectangle backup pad. The middle parts of the fixing edges of the upper clamping piece 1 and the lower clamping piece 9 are respectively fixedly connected with the end part of one outer supporting rod 3.
In this embodiment, the three outer support rods 3 are respectively disposed on three fixed edges of the upper clamping member 1 and the lower clamping member 9, the central support rod 2 is disposed on a first support plate in the middle of the upper clamping member 1 and the lower clamping member 9, the cross-sectional shape of the first support plate is a regular triangle, and three sides of the first support plate are parallel to three fixed edges of the upper clamping member 1 and the lower clamping member 9, so that the outer support rods 3 are uniformly disposed on the periphery of the central support rod 2, and the central support rod 2 and the outer support rods 3 are fixedly connected to the upper clamping member 1 and the lower clamping member 9.
In order to obtain insulation, a layer of insulating heat-shrinkable sleeve 4 is sleeved on the outer support rod 3 and the central support rod 2, and in this embodiment, the insulating heat-shrinkable sleeve 4 is a PET heat-shrinkable sleeve or a silicon rubber heat-shrinkable sleeve matched with the voltage grade and the temperature resistance grade of the transformer.
In this embodiment, the outer support rod 3 is provided with a first fixing member 6 for fixedly connecting one side portion of each partition 8, and the central support rod 2 is provided with a second fixing member 5 for fixedly connecting the other side portion of each partition 8.
Referring to fig. 2, the second fixing member 5 includes a through hole 5-1 and slots 5-2 uniformly distributed around the second fixing member 5, the through hole 5-1 is adapted to the central support rod 2, the second fixing member 5 is inserted into the central support rod 2 through the through hole 5-1, in this embodiment, the slots 5-2 are non-penetrating slots serving as positioning slots for the phase spacers 8, and two corners of one side of the phase spacers 8 are just clamped on the slots 5-2 of the second fixing member 5, specifically, the slots of the slots 5-2 are arranged according to the number of the phase spacers 8, and in this embodiment, the slots 5-2 are provided with three slots for respectively fixing one end of the three phase spacers 8 on the central support rod 2.
In order to better fix the phase partition plate 8, the utility model is respectively provided with the second fixing pieces 5 corresponding to the upper end and the lower end of the phase partition plate 8, the two second fixing pieces 5 are sleeved on the central support rod 2, and the positions of the two second fixing pieces 5 are arranged according to the height of the phase partition plate 8, so that the second fixing pieces can be fixed at proper positions to clamp and fix the upper end and the lower end of the phase partition plate.
In this embodiment, an insulating support tube 7 for supporting and positioning is further provided, the insulating support tube 7 is also sleeved on the central support rod 2 and is arranged below the second fixing member 5, the outer diameter of the insulating support tube 7 is larger than the aperture of the through hole 5-1 in the second fixing member 5, so that the second fixing member 5 is not easy to disengage from the central support rod 2, the second fixing member 5 is sleeved into the central support rod 2 through the through hole 5-1 matched with the size of the central support rod 2, but friction looseness may exist in the through hole, and therefore the second fixing member 5 cannot be firmly clamped on the central support rod 2 under the condition of disengagement, so that the insulating support tube 7 is provided in this embodiment, and the fixing stability of the second fixing member is ensured. In this embodiment, the insulating support tube 7 also plays a role in positioning, and the second fixing member 5 penetrates through the central support rod 2, and the height position of the insulating support tube 7 is determined by the length of the insulating support tube, so as to fix the upper end and the lower end of the partition plate 8 conveniently.
As shown in fig. 1, in order to better fix the phase partition plate 8, two second fixing members are provided above and below the phase partition plate 8, so for positioning, two insulating support tubes 7 are provided, which are distinguished and named as a first insulating support tube 7-1 and a second insulating support tube 7-2 in the present embodiment, specifically, in the present embodiment, for distinguishing, two second fixing members 5 provided above and below are also named as an upper second fixing member 5-3 and a lower second fixing clip 5-4 respectively, the first insulating support tube 7-1, the second insulating support tube 7-2, and the upper second fixing member 5-3 and the lower second fixing clip 5-4 are all sleeved on the central support rod 2, the upper second fixing member 5-3 is at the top for fixing the upper end of the phase partition plate 8, a first insulating support pipe 7-1 is arranged below the upper second fixing piece 5-3, the first insulating support pipe 7-1 is arranged at a corresponding length according to the height of the phase separation plate 8, so that the position of the lower second fixing piece 5-4 is determined by the length of the first insulating support pipe 7-1, and the upper second fixing piece 5 is more stably fixed on the central support rod 2 by the first insulating support pipe 7-1; the lower second fixing part 5-4 is arranged below the first insulating supporting pipe 7-1, the lower second fixing part 5-4 fixes the lower end of the phase partition plate 8, and a second insulating supporting pipe 7-2 for supporting the lower second fixing part is arranged below the first insulating supporting pipe. In this embodiment, the second fixing member 5 is positioned and fixed at a suitable height through the insulating support tube 7, so that the two corners of one side of the phase partition plate 8 are just clamped on the clamping grooves 5-2 of the second fixing member 5, and the second fixing member 5 can stably fix the phase partition plate 8, and the clamping grooves 5-2 corresponding to the corresponding conditions can be set according to the number of the phase partition plates 8 in the second fixing member 5, so that the phase partition plate 8 can be stably fixed by the second fixing member 5 regardless of the number of the phase partition plates 8.
The embodiment further comprises a first fixing part 6 for fixing the other side of the spaced plate 8, as shown in fig. 3, the first fixing part 6 comprises a first fixing part 6-1 and a second fixing part 6-2, and the middle parts of the first fixing part 6-1 and the second fixing part 6-2 are provided with mutually matched bending parts for clamping the outer support rod 3, it should be understood by those skilled in the art that the shape and size of the bending parts are set according to the outer support rod 3, which requires that the first fixing part 6 is stably fixed on the outer support rod 3, in the embodiment, the bending parts are two C-shaped half rings, and the two C-shaped half rings are exactly matched with the diameter of the shaft of the outer support rod 3, so as to firmly clamp the outer support rod 3.
A first through hole and a second through hole which are used for penetrating through the first fixing part 6-1 and the second fixing part 6-2 are respectively arranged on two sides of the first fixing part 6; a third through hole for fixing the phase separation plate 8 is formed in one side, far away from the first through hole, of the second fixing part 6-2; specifically, the first through holes and the second through holes are distributed on two sides of the first fixing member 6, the first fixing member 6 is clamped and fixed on the outer support rod 3 by matching with the bending part, the third through holes on the second fixing part 6-2 fix the spacing plates 8 on the outer support rod 3 by insulating bolts, optionally, the insulating bolts are high-strength nylon or high-temperature-resistant engineering plastic bolts on the outer support rods,
in this embodiment, the number of the first fixing members 6 is two, two of the first fixing members 6 are respectively fixed on the outer support rods 3 up and down, two of the first fixing members 6 are arranged corresponding to the upper and lower ends of the spaced plates 8 and are used for clamping the spaced plates 8, and each of the spaced plates is fixed on each of the outer support rods 3.
In this embodiment, as an embodiment, an epoxy glass cloth laminated board, a diphenyl ether glass cloth board, or a polyimide glass cloth board is used as the first fixing member 6, the second fixing member 5, and the partition plate 8.
The embodiment provides a fixing device suitable for a three-phase three-dimensional coil iron core dry-type transformer phase partition plate, and the fixing device is simple in structure, easy to operate and good in fixing effect. The phase insulation can be optimized well, the phase distance is shortened, and the vibration noise of the phase partition plate is avoided.
EXAMPLE III
The embodiment provides an application structure of a fixing device for a phase partition plate of a three-phase three-dimensional wound core dry-type transformer, which comprises the fixing device, the phase partition plate 8 and a transformer. The phase partition plates of the three-phase three-dimensional wound core transformer are required to form an included angle of 120 degrees between every two fixed phase partition plates.
The fixing device described in embodiment 1 or embodiment 2 is used, and the structure is applied as follows: one side of each phase separation plate 8 is fixed on the central support rod 2 by the second fixing piece 5 in an insulated connection mode, the other side of each phase separation plate is fixed on each outer support rod 3 by the first fixing piece 6 in an insulated connection mode, after the phase separation plates 8 are fixed by an operator in the mode, the phase separation plates are suspended relative to the transformer core, and for example, gaps of 5-8mm are respectively arranged between the upper end and the lower end of each phase separation plate 8 and the upper iron yoke and the lower iron yoke of the transformer core.
Through the application structure, when the three-phase three-dimensional wound core dry-type transformer body is assembled, the phase separation plate 8 is easily plugged on the second fixing part 5, and then is tightly fixed on the outer supporting rod 3 through the first fixing part 6, and is suspended between iron core yokes, so that the three-phase three-dimensional wound core dry-type transformer body has the advantages of simple operation, firmness in fixation and capability of effectively improving phase insulation.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A fixing device for a phase partition plate of a three-phase three-dimensional coiled iron core dry-type transformer is characterized by comprising an upper clamping piece (1) and a lower clamping piece (9) which are arranged oppositely up and down, and a central support rod (2) and an outer support rod (3) which are positioned between the upper clamping piece (1) and the lower clamping piece (9); two ends of the central supporting rod (2) and the outer supporting rod (3) are respectively and fixedly connected with an upper clamping piece (1) and a lower clamping piece (9);
the number of the outer supporting rods (3) is at least one corresponding to each phase partition plate (8); the outer support rods (3) are distributed on the periphery of the central support rod (2);
each outer supporting rod (3) is provided with at least one first fixing piece (6) used for fixedly connecting the side part of one side of the phase partition plate (8) in an insulating way; the central support rod (2) is provided with a second fixing piece (5) which is used for fixedly connecting the side parts of the other sides of the interval plates (8) in an insulating way.
2. The fixing device for the phase partition of the three-phase solid wound core dry-type transformer according to claim 1, wherein the upper clamping piece (1) and the lower clamping piece (9) respectively comprise three fixing edges, the three fixing edges or the extension lines thereof enclose a regular triangle, and a first supporting plate is arranged in the middle of the regular triangle area;
the two ends of the central supporting rod (2) are respectively and fixedly connected with the middle part of a first supporting plate of the upper clamping piece (1) and the lower clamping piece (9); the middle part of each fixed edge is respectively and fixedly connected with the end part of one outer supporting rod (3).
3. The fixing device of the phase partition plate of the three-phase solid wound iron core dry-type transformer according to claim 2, wherein the central support rod (2) is fixedly connected to the central position of the first support plate, and the outer support rod (3) is fixedly connected to the outer side of the central position of the fixed edge;
a second supporting plate fixed through a vertical reinforcing rib is arranged on the outer side of the middle part of each fixed edge; the end part of the outer supporting rod (3) penetrates through and is fixedly connected with the second supporting rod.
4. The fixing device of the phase partition board of the three-phase solid wound core dry type transformer according to claim 1, wherein the second fixing member (5) comprises a through hole (5-1) matched with the central support rod (2) and clamping grooves (5-2) uniformly distributed on the periphery of the second fixing member (5);
the number of the clamping grooves (5-2) is at least one corresponding to each phase partition plate (8);
the number of the second fixing pieces (5) is two, and the upper end and the lower end of each second fixing piece (5) corresponding to the corresponding partition plate (8) are respectively sleeved on the central support rod (2).
5. The fixing device for the phase partition board of the three-phase solid wound core dry-type transformer according to claim 4, wherein an insulating support tube (7) is sleeved on the central support rod (2) below the second fixing member (5), and the outer diameter of the insulating support tube (7) is larger than the aperture of the through hole (5-1) on the second fixing member (5);
the number of the insulating support tubes (7) is at least one below each second fixing piece (5).
6. The fixing device of the phase partition board of the three-phase three-dimensional wound core dry-type transformer according to claim 1, wherein the first fixing part (6) comprises a first fixing part (6-1) and a second fixing part (6-2), the middle parts of the first fixing part (6-1) and the second fixing part (6-2) are provided with mutually matched bending parts for clamping the outer supporting rod (3), and both sides of the first fixing part (6) are respectively provided with a first through hole and a second through hole for penetrating through the first fixing part (6-1) and the second fixing part (6-2); a third through hole for fixedly connecting the phase partition plates (8) is formed in one side, far away from the first through hole, of the second fixing part (6-2);
on each outer supporting rod, the number of the first fixing pieces (6) is two, and the two first fixing pieces (6) are respectively fixed on the outer supporting rod (3) from top to bottom.
7. The fixing device for the phase partition of the three-phase solid wound iron core dry-type transformer according to claim 1, wherein the outer support rod (3) and the central support rod (2) are sleeved with a layer of insulating heat-shrinkable sleeve (4).
8. The fixing device of the phase partition board of the three-phase solid wound iron core dry-type transformer according to claim 1, wherein the first fixing member (6) and the second fixing member (5) are epoxy glass cloth laminated board, diphenyl ether glass cloth board, polyimide glass cloth board.
9. The application structure of the fixing device of the phase partition plate of the three-phase solid wound iron core dry-type transformer according to claim 1, comprising the fixing device, the phase partition plate and the transformer, wherein one side of each phase partition plate (8) is fixed on the central supporting rod (2) by the second fixing member (5) in an insulated connection way, the other side of each phase partition plate is fixed on each outer supporting rod (3) by the first fixing member (6) in an insulated connection way, and the upper and lower ends of each phase partition plate (8) have a gap of 5-8mm with the upper and lower iron yokes of the transformer core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120756485.2U CN216145494U (en) | 2021-04-14 | 2021-04-14 | Fixing device for phase partition plate of three-phase three-dimensional coiled iron core dry-type transformer and application structure of fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120756485.2U CN216145494U (en) | 2021-04-14 | 2021-04-14 | Fixing device for phase partition plate of three-phase three-dimensional coiled iron core dry-type transformer and application structure of fixing device |
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| Publication Number | Publication Date |
|---|---|
| CN216145494U true CN216145494U (en) | 2022-03-29 |
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| CN202120756485.2U Active CN216145494U (en) | 2021-04-14 | 2021-04-14 | Fixing device for phase partition plate of three-phase three-dimensional coiled iron core dry-type transformer and application structure of fixing device |
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| Country | Link |
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| CN (1) | CN216145494U (en) |
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