CN220710107U - Fixed support structure of zero sequence current transformer of dry-type transformer - Google Patents
Fixed support structure of zero sequence current transformer of dry-type transformer Download PDFInfo
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- CN220710107U CN220710107U CN202322391410.0U CN202322391410U CN220710107U CN 220710107 U CN220710107 U CN 220710107U CN 202322391410 U CN202322391410 U CN 202322391410U CN 220710107 U CN220710107 U CN 220710107U
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- sequence current
- current transformer
- zero
- transformer
- dry
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- 230000008093 supporting effect Effects 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims abstract description 31
- 238000005452 bending Methods 0.000 claims abstract description 7
- 238000013016 damping Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 8
- 239000010949 copper Substances 0.000 abstract description 8
- 230000035939 shock Effects 0.000 abstract description 8
- 238000011900 installation process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model discloses a fixed bracket structure of a zero sequence current transformer of a dry-type transformer, which belongs to the technical field of zero sequence current transformer installation and comprises a plurality of bracket, connecting pieces and supporting pieces, wherein the bracket is arranged on a plurality of upper clamping pieces of the transformer side by side; the connecting piece is arranged at the bending part of the upper end of the bracket in the shape of a Chinese character 'ji', and an installation operation surface is formed along the vertical side wall of the bracket in the shape of a Chinese character 'ji' for the lateral installation operation of the zero sequence current transformer; the support piece is arranged on the installation working surface of the connecting piece, the support working surface is formed along the direction perpendicular to the zero-phase row extending direction of the dry-type transformer, the zero-sequence current transformer arranged in the lateral direction is supported, the zero-sequence current transformer extends out of an inner hole of the zero-sequence current transformer along the perpendicular direction, the copper bar installation process is simplified, the shock-absorbing structure is arranged, the stable support of the zero-sequence current transformer is realized in the two directions, shock absorption is carried out in the transportation process, and the jolt damage is reduced.
Description
Technical Field
The utility model belongs to the technical field of zero sequence current transformer installation, and particularly relates to a fixed support structure of a zero sequence current transformer of a dry-type transformer.
Background
The zero sequence current transformer is a single turn through type current transformer and is generally used for power protection equipment such as: the low-current grounding line selection device, the microcomputer resonance elimination device and the like are matched for use. When the zero sequence grounding current is generated by the power system, the zero sequence grounding current is matched with a relay protection device or a signal for use, so that device elements act, and protection or monitoring is realized. When electric shock or leakage fault occurs in the circuit, the secondary side of the transformer outputs zero sequence current, so that equipment on the connected secondary line is protected.
Along with the increasingly standard power protection work in the current society, the requirements for the selection of zero-sequence current transformers are also higher, namely, the protection function and the measurement function (two groups of outgoing lines of the secondary winding of the transformer) are required to be met, and the selection of the capacity is also larger, for example: the single weight of the LMZJ1-1 1000/1P 20 40VA zero sequence current transformer is about 40-60 jin, and the current transformer with larger weight cannot be installed by the existing installation mode (directly installing the current transformer on the same row for fixing through bolts).
In the prior art, as shown in fig. 1, a current transformer is directly fixed on a bracket in a shape like a Chinese character 'ji' of a transformer, and although the heavier current transformer can be installed, a zero-sequence current transformer can be penetrated only after a zero-sequence phase bar on the side of the transformer is bent and copper bars are connected, so that the copper bar installation process is complex, the copper bars are required to be installed on site, and materials are wasted.
In addition, because the required current transformer is heavy, jolt easily occurs in the transportation process, and the transportation is inconvenient.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the fixing support structure of the zero sequence current transformer of the dry type transformer, which is used for laterally installing the zero sequence current transformer, enabling the zero phase extending out laterally to vertically penetrate through the inner hole of the zero sequence current transformer, simplifying the copper bar installation process, reducing the use cost of conductive materials, having a damping structure, realizing the stable support of the zero sequence current transformer in two directions, damping in the transportation process, reducing jolt damage and solving the problems in the background technology.
The technical scheme adopted by the utility model is as follows: the fixing bracket structure of the zero sequence current transformer of the dry type transformer is arranged on an upper clamping piece of the dry type transformer and is characterized by comprising a plurality of bracket, connecting pieces and supporting pieces, wherein the bracket is arranged on the upper clamping piece of the transformer in a shape like a Chinese character 'ji', and is arranged on the upper clamping piece of the transformer side by side to raise the supporting position for supporting the zero sequence current transformer and reserve a wire inlet and outlet space; the connecting piece is arranged at the bending part of the upper end of the bracket in a shape like Chinese character 'ji', and a plurality of brackets in a shape like Chinese character 'ji' are movably connected; forming an installation working surface along the vertical side wall of the bracket in a shape like a Chinese character 'ji' for lateral installation operation of the zero sequence current transformer, wherein the installation plate of the zero sequence current transformer is attached to the installation working surface; the support piece is arranged on the installation operation surface of the connecting piece, forms a support operation surface along the direction perpendicular to the zero-phase-row extending direction of the dry-type transformer, supports the zero-sequence current transformer which is laterally installed, exposes the inner hole of the zero-sequence current transformer, and enables the zero-phase-row extending laterally of the zero-sequence current transformer to penetrate out of the inner hole of the zero-sequence current transformer along the perpendicular direction.
Further, a backing plate is assembled on the supporting working surface of the supporting piece for shock absorption, and an insulating material is used.
Furthermore, the bracket in the shape of a Chinese character 'ji' is connected with the upper clamping piece through a fastening bolt, so that the bracket is convenient to detach and install.
Further, the connecting piece is provided with a mounting hole for mounting the supporting piece and the zero sequence current transformer, and the mounting plates of the supporting piece and the zero sequence current transformer are connected with the connecting piece through bolts.
Further, two supporting pieces are arranged, and the inner holes of the zero sequence current transformers are positioned between the supporting working surfaces of the two supporting pieces.
Further, the connecting piece is connected with the bracket in the shape of a Chinese character 'ji' through a fastening bolt.
After the structure is adopted, the utility model has the following beneficial effects: according to the fixing bracket structure of the zero-sequence current transformer of the dry-type transformer, the zero-sequence current transformer is laterally installed (installed on one side of the dry-type transformer) through the bracket structure, the central axis of the inner hole of the zero-sequence current transformer extends vertically (zero-phase rows on the side of the dry-type transformer extend to the upper side of the transformer), so that the zero-phase rows of the dry-type transformer directly vertically penetrate through the inner hole of the zero-sequence current transformer, complex bending and a process for planning a copper bar route are avoided, and materials are saved;
in addition, the installation working face of the connecting piece and the supporting working face of the supporting piece support the zero sequence current transformer in two directions, and on the basis of stable support, the cushion plate used for shock absorption is utilized, shock absorption is realized in the process of transportation after pre-installation, the probability of jolt damage is reduced, and the transportation condition after pre-installation is met.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a prior art installation of a zero sequence current transformer on a dry transformer;
fig. 2 is a side view of a fixing bracket structure of a zero sequence current transformer of a dry-type transformer according to the present utility model;
fig. 3 is a front view of a fixing bracket structure of a zero sequence current transformer of a dry-type transformer.
In the drawings: 1. the upper clamping piece, 2, the zero sequence current transformer, 3, an inner hole, 4, a copper bar, 5, a bracket in a shape like a Chinese character 'ji', 6, a connecting piece, 7, a supporting piece, 8, a backing plate, 9 and a mounting plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are 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.
As shown in fig. 2-3, a fixed bracket structure of a zero sequence current transformer 2 of a dry-type transformer comprises a clamp 1 arranged on the dry-type transformer, and is characterized by comprising a bracket 5, a connecting piece 6 and a supporting piece 7; the formed bracket structure laterally installs the zero sequence current transformer 2, the central axis of the inner hole 3 of the zero sequence current transformer 2 extends vertically, so that zero phase rows extending laterally of the dry type transformer can directly penetrate through the inner hole 3 without excessive bending;
the plurality of the bracket 5 is arranged on the upper clamping piece 1 of the transformer and is erected on the upper clamping piece 1 of the dry-type transformer side by side, the bracket 5 is arranged on the upper clamping piece 1 of the dry-type transformer through fastening bolts, the supporting position for supporting the zero sequence current transformer 2 is lifted, and a wire inlet and outlet space is reserved;
the connecting piece 6 is arranged at a bending position at the upper end of the bracket 5 in a shape like a Chinese character 'ji', a plurality of brackets 5 in a shape like a Chinese character 'ji' are movably connected, an installation operation surface is formed along the vertical side wall of the bracket 5 in a shape like a Chinese character 'ji', the installation plate 9 of the zero sequence current transformer is attached to the installation operation surface for the lateral installation operation of the zero sequence current transformer 2, in the embodiment, the connecting piece 6 is preferably L-shaped and attached to the corner at the upper end of the bracket 5 in a shape like a Chinese character 'ji', the upper wall of the bracket 5 in a shape like a Chinese character 'ji' is connected through a bolt, and the installation operation surface is formed on the vertical side wall of the bracket 5 in a shape like a Chinese character 'ji';
the support piece 7 is installed on the installation operation surface of the connecting piece 6, forms a support operation surface along the direction perpendicular to the zero-phase-arrangement extending direction of the dry-type transformer, supports the laterally installed zero-sequence current transformer 2, performs installation and support (lateral installation on the installation operation surface and support through the support operation surface) on the heavy zero-sequence current transformer in two directions, and improves the installation stability.
In addition, the inner hole 3 of the zero sequence current transformer 2 can be exposed in the side mounting, so that the zero phase row extending out of the zero sequence current transformer 2 in the side direction penetrates out of the inner hole 3 of the zero sequence current transformer 2 along the vertical direction, in the embodiment, preferably, the supporting pieces 7 are L-shaped and are oppositely arranged, a zero phase row inlet and outlet channel is formed by the distance between the two supporting pieces 7, the inlet and outlet channel is communicated with the inner hole 3 of the zero sequence current transformer 2, the zero phase row penetrates out of the inner hole 3 of the zero sequence current transformer 2 through the channel, and the process of bending and the like is not needed, so that the installation is convenient.
Example 2
On the basis of embodiment 1, the backing plate 8 is assembled on the supporting working surface of the supporting piece 7 for shock absorption, and an insulating material is used, in the application, the preferred embodiment is that the backing plate 8 adopts a silicon rubber plate, the insulation and shock absorption effect is good, the lateral direction of the zero sequence current transformer 2 is supported on the supporting working surface, and the zero sequence current transformer 2 with heavier transportation quality is suitable for shock absorption.
In the present embodiment, it is preferable that the connection member 6 forms a plane perpendicular to the mounting surface and the support surface formed by the support member 7, and the zero-sequence current transformer 2 is stably mounted in two directions perpendicular to each other.
Based on the above description, the damping pad 8, in combination with the supporting effect of the zero sequence current transformer 2 in the two vertical directions formed by side mounting and supporting, improves the damping effect in the transportation process, and is particularly suitable for transportation of zero sequence current transformers with large weight after preassembling in dry type transformers.
When the transformer is particularly used, the bracket 5, the connecting piece 6 and the supporting piece 7 are matched in a way that the bracket 5 is fixed on the upper clamping piece 1 of the dry-type transformer, then the bracket 5 is fixed on the bracket 5 by the connecting piece 6, the connecting piece 6 is reserved with mounting holes for mounting the zero sequence current transformer 2 and the supporting piece 7, the transformer and the supporting piece 7 are fixed on the connecting piece 6 by bolts, and a silicon rubber plate is filled between the lateral direction of the transformer and the supporting working surface of the supporting piece 7 for shock absorption; according to the mounting structure, the zero-sequence current transformer 2 is laterally mounted, so that the mounting and manufacturing of the zero-sequence copper bars are facilitated, the transportation conditions after mounting can be met, a large amount of after-sales work is saved compared with field mounting, and the cost is saved.
Although embodiments of the present utility model 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 utility model, the scope of which is defined in the appended claims and their equivalents. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (6)
1. The utility model provides a fixed bolster structure of dry-type transformer zero sequence current transformer installs on the last folder of dry-type transformer, its characterized in that includes:
the bracket is provided with a plurality of brackets which are arranged on an upper clamping piece of the transformer in parallel, the supporting position for supporting the zero sequence current transformer is lifted, and a wire inlet and outlet space is reserved;
the connecting piece is arranged at the bending part of the upper end of the bracket in a shape like Chinese character 'ji', and is used for movably connecting a plurality of brackets in a shape like Chinese character 'ji'; forming an installation working surface along the vertical side wall of the bracket in a shape like a Chinese character 'ji' for lateral installation operation of the zero sequence current transformer, wherein the installation plate of the zero sequence current transformer is attached to the installation working surface;
the support piece is arranged on the installation working surface of the connecting piece, forms a support working surface along the direction perpendicular to the zero-phase row extending direction of the dry-type transformer, supports the zero-sequence current transformer which is laterally installed, exposes the inner hole of the zero-sequence current transformer, and enables the zero-phase row extending laterally of the zero-sequence current transformer to penetrate out of the inner hole of the zero-sequence current transformer along the perpendicular direction.
2. The fixed support structure of a zero sequence current transformer of a dry-type transformer according to claim 1, wherein: and a backing plate is assembled on the supporting working surface of the supporting piece and used for damping.
3. The fixed support structure of a zero sequence current transformer of a dry-type transformer according to claim 1, wherein: the bracket in the shape of a Chinese character 'ji' is connected with the upper clamping piece through a fastening bolt.
4. The fixed support structure of a zero sequence current transformer of a dry-type transformer according to claim 1, wherein: and the connecting piece is provided with a mounting support piece and a mounting hole of the zero sequence current transformer.
5. The fixed support structure of a zero sequence current transformer of a dry-type transformer according to claim 1, wherein: the two supporting pieces are arranged, and the inner holes of the zero sequence current transformers are positioned between the supporting working surfaces of the two supporting pieces.
6. The fixed support structure of a zero sequence current transformer of a dry-type transformer according to claim 1, wherein: the connecting piece is connected with the bracket in the shape of a Chinese character 'ji' through a fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322391410.0U CN220710107U (en) | 2023-09-04 | 2023-09-04 | Fixed support structure of zero sequence current transformer of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322391410.0U CN220710107U (en) | 2023-09-04 | 2023-09-04 | Fixed support structure of zero sequence current transformer of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220710107U true CN220710107U (en) | 2024-04-02 |
Family
ID=90447789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322391410.0U Active CN220710107U (en) | 2023-09-04 | 2023-09-04 | Fixed support structure of zero sequence current transformer of dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220710107U (en) |
-
2023
- 2023-09-04 CN CN202322391410.0U patent/CN220710107U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |