CN220106213U - Low-voltage wiring device of dry-type transformer - Google Patents
Low-voltage wiring device of dry-type transformer Download PDFInfo
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- CN220106213U CN220106213U CN202321466638.5U CN202321466638U CN220106213U CN 220106213 U CN220106213 U CN 220106213U CN 202321466638 U CN202321466638 U CN 202321466638U CN 220106213 U CN220106213 U CN 220106213U
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- 238000005452 bending Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model relates to a low-voltage connecting device of a dry-type transformer, which relates to the technical field of transformers and comprises two parts, namely a zero row and a bridging row. The zero row has a preset operation length, a corresponding through hole is arranged at a preset position on the surface of the operation surface, and the zero row can be connected with the low-voltage upper clamping piece of the transformer through the through hole; the bridging row has a preset operation length, a through hole matched with the zero row of through holes is arranged at a preset position on the surface of the operation surface, and the bridging row can be connected with the transformer low-voltage upper clamping piece through the arranged through hole. The utility model can meet the corresponding requirements of two-phase wires and one-phase wire by combining the zero row with the bridging row and the corresponding connection mode through the two copper rows, and reduces the consumption by half, and simultaneously reduces the manufacturing cost of the transformer.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a low-voltage wiring device of a dry-type transformer.
Background
Dry transformers are widely used in places such as local lighting, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply said dry transformers refer to transformers in which the iron cores and windings are not immersed in insulating oil.
According to the test rule and method 6.2 of the 6 th standard of the technical parameters and the requirement GB/T10228-2015 of the dry type power transformer, the unbalance rate of the direct current resistance of windings of the distribution transformer with 2500kVA and below is that the phase is not more than 4 percent, and the line is not more than 2 percent.
For a distribution transformer, the larger the capacity is, the more difficult the unbalance rate of the direct current resistor at the low voltage side is to be met, and the low voltage zero-line specification and the low voltage zero-line number can be increased continuously to adjust the low voltage phase resistance and the line resistance, so that the zero-line connection specification is larger, and two or even three low voltage zero-line specifications cannot be met. Along with the continuous refinement and refinement of products in the market, the field acceptance standard is also higher and higher, and the unbalanced rate of the direct current resistance of the transformer winding in many areas is required: the phase is not more than 2% and the line is not more than 1%. This results in a large volume (2000 kVA, 2500 kVA) product that, according to previous processes, does not meet customer requirements at all; at this time, it is necessary to provide a low-voltage connection device for a dry-type transformer to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to: a low-voltage wiring device for a dry-type transformer is provided to solve the above problems in the prior art.
The technical scheme is as follows: a low-voltage connection device for dry-type transformer is composed of zero row and cross-over row. The zero row has a preset operation length, a corresponding through hole is arranged at a preset position on the surface of the operation surface, and the zero row can be connected with the transformer low-voltage upper clamping piece through the through hole; the bridging row has a preset operation length, a through hole matched with the zero row of through holes is arranged at a preset position on the surface of the operation surface, and the bridging row can be connected with the transformer low-voltage upper clamping piece through the arranged through hole.
In a further embodiment, the bridging rows are shaped and have a predetermined bending radian, and can be matched with the zero rows to realize corresponding wire connection operation.
In a further embodiment, the surface of the zero-row working surface is provided with a plurality of groups of through holes, and each group of through holes is four and uniformly distributed on the surface of the zero-row working surface.
In a further embodiment, the surface of the working surface of the bridge line is provided with a plurality of groups of through holes, and each group of through holes is four and uniformly distributed on the surface of the working surface of the bridge line.
In a further embodiment, the zero line and the bridging line are phase-connected with corresponding lead wires of the transformer through bolts, and can be matched with each other to be connected with the corresponding lead wire line.
The beneficial effects are that: the utility model relates to a low-voltage connecting device of a dry-type transformer, which relates to the technical field of transformers and comprises two parts, namely a zero row and a bridging row. The zero row has a preset operation length, a corresponding through hole is arranged at a preset position on the surface of the operation surface, and the zero row can be connected with the low-voltage upper clamping piece of the transformer through the through hole; the bridging row has a preset operation length, a through hole matched with the zero row of through holes is arranged at a preset position on the surface of the operation surface, and the bridging row can be connected with the transformer low-voltage upper clamping piece through the arranged through hole. The utility model can meet the corresponding requirements of two-phase wires and one-phase wire by combining the zero row with the bridging row and the corresponding connection mode through the two copper rows, and reduces the consumption by half, and simultaneously reduces the manufacturing cost of the transformer.
Drawings
Fig. 1 is a top view of a dry-type transformer low-voltage wiring device according to the present utility model.
The reference numerals in the drawings are as follows: zero row 1, bridge row 2, bolt 3, low pressure upper clip 4.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the utility model.
Embodiment one:
the low-voltage wiring device of the dry-type transformer provided by the embodiment comprises two components of a zero row 1 and a bridging row 2. The zero row 1 has a preset operation length, a corresponding through hole is arranged at a preset position on the surface of the operation surface, and the zero row can be connected with the transformer low-voltage upper clamping piece 4 through the through hole; the bridging row 2 has a preset operation length, a through hole matched with the through hole of the zero row 1 is arranged at a preset position on the surface of the operation surface, and the bridging row can be connected with the transformer low-voltage upper clamping piece 4 through the through hole. Connection with the corresponding lead wire row can be realized through the mutual matching of the zero row 1 and the bridging row 2 in the later operation process. The bridging row 2 is shaped and has a preset bending radian, and can be matched with the zero row 1 to realize corresponding line connection operation. The surface of the zero row 1 working surface is provided with a plurality of groups of through holes, each group of through holes is four and distributed at the left, middle and right positions of the surface of the zero row 1 working surface, and the positions of the through holes correspond to the positions of corresponding lead rows of the transformer. The surface of the working surface of the bridging row 2 is provided with a plurality of groups of through holes, and each group of through holes is four and distributed at the left, middle and right positions of the surface of the working surface of the bridging row 2; and the operation positions and operation sizes of the through holes arranged on the left and right sides of the surface of the working surface of the bridging row 2 are matched with those of the through holes arranged on the left and right sides of the surface of the working surface of the zero row 1. The zero row 1 and the bridging row 2 are connected with corresponding lead phases arranged on the transformer through bolts 3 and can be matched with each other to be connected with the corresponding lead rows.
Embodiment two:
on the basis of the first embodiment, each group of through holes arranged on the surface of the working surface of the zero row 1 is sequentially connected with the a phase, the b phase and the c phase of the lead wire row of the transformer, each group of through holes arranged on the surface of the working surface of the bridging row 2 is sequentially connected with the a phase and the c phase of the lead wire row of the transformer, and meanwhile, the 0 row is matched to lead out corresponding circuits. The specific calculation method of the lead mode resistor and corresponding parameters are as follows:
according to the calculation method, the conventional lead wire process needs 4 12 x 125 copper bars to be connected, so that the first phase two wires can be met, the manufacturing cost and the materials are too high, and the process is complex; by the low-voltage connection device and the corresponding connection mode of the dry-type transformer, the utility model can meet the first phase two wire by only connecting 2 12 x 125 copper bars, the design requirement can be realized by halving the copper bar consumption, and the manufacturing cost of the transformer is effectively reduced.
As described above, although the present utility model has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the utility model itself. Various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (5)
1. A low voltage wiring device for a dry type transformer, comprising:
zero row with preset operation length and corresponding through holes in preset position on the surface of the operation surface and connected to the low voltage upper clamping part of the transformer;
the bridging row has a preset operation length, through holes matched with the zero row of through holes are arranged at preset positions on the surface of the operation surface, and the bridging row can be connected with the transformer low-voltage upper clamping piece through the arranged through holes.
2. The dry-type transformer low-voltage wiring device of claim 1, wherein:
the bridging row is special-shaped and has a preset bending radian, and can be matched with the zero row to realize corresponding online operation.
3. A dry-type transformer low-voltage wiring device as claimed in claim 2, wherein:
the surface of the zero-row working surface is provided with a plurality of groups of through holes, and each group of through holes are four and uniformly distributed on the surface of the zero-row working surface.
4. A dry-type transformer low-voltage wiring device as claimed in claim 2, wherein:
the surface of the jumper row working face is provided with a plurality of groups of through holes, and each group of through holes are four and uniformly distributed on the surface of the jumper row working face.
5. The dry-type transformer low-voltage wiring device of claim 1, wherein:
the zero row and the bridging row are connected with the corresponding lead phases of the transformer through bolts and can be matched with each other to be connected with the corresponding lead row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321466638.5U CN220106213U (en) | 2023-06-09 | 2023-06-09 | Low-voltage wiring device of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321466638.5U CN220106213U (en) | 2023-06-09 | 2023-06-09 | Low-voltage wiring device of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220106213U true CN220106213U (en) | 2023-11-28 |
Family
ID=88882055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321466638.5U Active CN220106213U (en) | 2023-06-09 | 2023-06-09 | Low-voltage wiring device of dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220106213U (en) |
-
2023
- 2023-06-09 CN CN202321466638.5U patent/CN220106213U/en active Active
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