CN210272018U - Three-phase three-dimensional reel iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for next round of competitions - Google Patents
Three-phase three-dimensional reel iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for next round of competitions Download PDFInfo
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- CN210272018U CN210272018U CN201921278265.2U CN201921278265U CN210272018U CN 210272018 U CN210272018 U CN 210272018U CN 201921278265 U CN201921278265 U CN 201921278265U CN 210272018 U CN210272018 U CN 210272018U
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Abstract
The utility model discloses a three-phase three-dimensional wound core low-voltage lead and sleeve wire arrangement structure, three-phase three-dimensional wound core transformer low-voltage sleeve pipe arrange to triangle-shaped or parallelogram arrangement form, low-voltage lead arrangement structure cooperation case lid sleeve pipe arrangement structure, wherein low pressure B looks lead head, end are directly drawn to under the corresponding sleeve pipe, A, C looks head is directly drawn to corresponding sleeve pipe, A, C looks end is connected the back and is directly connected the B looks end lead wire directly over, be connected to corresponding O looks sleeve pipe through B looks end lead wire; the low-voltage sleeve is arranged at the spare position in the middle of the three-phase three-dimensional iron core rolling box cover. The utility model has the advantages that the B-phase lead resistance is obviously reduced, the unbalanced resistance rate is further reduced, and the copper bar manufacturing and mounting efficiency is greatly increased; the low-voltage sleeve arrangement can make full use of the spare position in the middle of the case cover of the three-phase three-dimensional wound core product, the size of an oil tank or a lifting seat does not need to be increased for increasing the low-voltage interphase distance, and the stray loss of the oil tank of the transformer can be reduced.
Description
Technical Field
The utility model relates to a three-phase is three-dimensional rolls up iron core transformer specifically is a three-phase is three-dimensional rolls up iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for the next round of competitions.
Background
The three-phase three-dimensional wound core transformer is a novel energy-saving distribution transformer developed in recent years, the transformer adopts the traditional cold-rolled silicon steel sheet material, the three-phase iron cores are arranged in an equilateral triangle three-dimensional mode, the lengths of the three-phase magnetic circuits are the same, and the magnetic circuits are shortest compared with the traditional laminated type.
Through the analysis of the low-voltage lead structure of the three-phase three-dimensional rolled iron core transformer product, the three-phase coils of the traditional three-dimensional rolled iron core transformer product are arranged in an equilateral triangle. As shown in fig. 1-2A and 2B, the low-voltage bushings are arranged in a line on the phase side of the coil A, C, the phase B lead needs to be connected to the low-voltage bushings by bypassing the phase B coil, and the phase Y lead is connected with the phase 0 lead and needs to be connected with the tail of the phase A, C low-voltage lead and then led to the phase 0 bushings beside the phase a bushings, so that the low-voltage lead structure not only increases the manufacturing difficulty and the usage amount of the conductive bars, brings trouble to the lead installation operation, but also easily causes the imbalance rate of the three-phase low-voltage leads to exceed the standard; the three-dimensional reel iron core case lid of three-phase is the hexagon structure, and along with the continuous promotion of customer's requirement, some products have to rely on increasing the oil tank size, or increase the mode that low-voltage bushing rose the seat and satisfy the customer and to the distance requirement between the low pressure, have increased the manufacturing cost of product, are unfavorable for improving the competitive advantage of three-dimensional reel iron core transformer product.
SUMMERY OF THE UTILITY MODEL
The iron core transformer low pressure down-lead structure lead wire installation operation is inconvenient, easily cause three-phase low pressure lead wire unbalance rate not enough that exceeds standard among the prior art to the three-phase solid book among the prior art, the to-be-solved problem of the utility model is to provide a three-phase solid book iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for the next round of competitions that the unbalanced rate of resistance reducees, copper bar preparation and installation effectiveness increase by a wide margin.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model relates to a three-dimensional iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for the next round of competitions of three-phase, three-dimensional iron core transformer low pressure sleeve pipe arrangement of rolling up of three-phase is triangle-shaped or parallelogram arrangement form, low pressure lead wire arrangement structure cooperation case lid sleeve pipe arrangement structure, wherein low pressure B looks lead wire first, end directly leads to under the corresponding sleeve pipe, A, C looks first directly leads to corresponding sleeve pipe, A, C looks end lead wire directly over the back lug connection that ends links to each other, end lead wire is connected to corresponding O looks sleeve pipe through B looks end.
The low-voltage sleeve is arranged at the spare position in the middle of the three-phase three-dimensional iron core rolling box cover.
The first copper bar and the lug of each phase lead are over against the corresponding low-voltage bushing, wherein the B phase first lead is shortened.
The tail leads of all phases are connected together and then face the O-phase sleeve, and the overall length of the O-phase lead is shortened.
The utility model has the following beneficial effects and advantages:
1. the utility model reduces the using amount of the low-voltage lead copper bar and the cable of the three-phase three-dimensional rolled iron core transformer, obviously reduces the B-phase lead resistance, further reduces the unbalanced resistance rate, only one connecting copper bar needs to be manufactured at the head and the tail of the low-voltage lead, and the manufacturing and installation efficiency of the copper bar is greatly increased; the low-voltage bushing arrangement can make full use of the spare position in the middle of the case cover of the three-phase three-dimensional wound core product, the size of an oil tank is not increased or a lifting seat is not increased for increasing the low-voltage interphase distance, the stray loss of the oil tank of the transformer can be reduced due to the three-phase outgoing line symmetry of the low-voltage bushing arrangement, and the comprehensive competitiveness of the three-phase three-dimensional wound core transformer is improved.
Drawings
FIG. 1 is a schematic view of a low-voltage bushing arrangement of an original three-phase three-dimensional wound core transformer;
FIG. 2A is a front view of a low-voltage lead structure of an original three-phase three-dimensional wound core transformer;
FIG. 2B is a top view of FIG. 2A;
FIG. 3 is a schematic view of the triangular arrangement of the low-voltage sleeves of the three-phase three-dimensional wound core transformer of the present invention;
FIG. 4 is a schematic view of a parallelogram arrangement of a low-voltage bushing of a three-phase three-dimensional wound core transformer of the present invention;
fig. 5A is a front view of the low-voltage lead structure of the three-phase three-dimensional wound core transformer of the present invention;
fig. 5B is a top view of fig. 5A.
Wherein, 1 is a low-voltage lead copper bar.
Detailed Description
The invention will be further explained with reference to the drawings attached to the specification.
As shown in fig. 3 ~ 4, the utility model relates to a three-dimensional iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for the next round of competitions of three-phase, three-dimensional iron core transformer low pressure sleeve pipe arrangement of rolling up is arranged to triangle-shaped or parallelogram and is arranged, low pressure lead wire arrangement structure cooperation case lid sleeve pipe arrangement structure, wherein low pressure B looks lead wire first, end directly leads to under the corresponding sleeve pipe, A, C looks first direct corresponding sleeve pipe of leading, A, C looks end links to each other the back direct connection directly the first lead wire of B looks directly over, end lead wire is connected to corresponding O looks sleeve pipe through B looks.
According to the low-voltage bushing, a three-phase three-dimensional wound core transformer low-voltage bushing is changed into a triangular or parallelogram (according to the low-voltage phase spacing requirement of a product) arrangement mode from a c, B, a and 0 linear arrangement mode, so that the head and the tail of a low-voltage B-phase lead are directly led to the right lower part of the corresponding bushing, the head of an A, C phase is directly led to the corresponding bushing, the tail of a A, C phase is directly connected with the tail of a B phase lead right above after being connected, and the tail of the B phase lead is connected to the corresponding O-phase bushing. The wiring and outlet structure is consistent with the arrangement of the original structure body and other external parts, but the size of the integral oil tank of the three-phase three-dimensional wound core transformer applicable to high altitude and special requirements can be reduced.
Two low voltage lead wire copper bars 1 in fig. 2A, 2B have been cancelled in this application structure, as shown in fig. 5A, 5B, the phase B head lead wire subtracts the weak point, and each phase lead wire copper bar and lug are all just to corresponding low voltage sleeve pipe, the preparation of copper bar and lug, installation effectiveness greatly increased, the copper bar and lug quantity then corresponding reduction.
When the low-voltage bushing is implemented, after the triangular or parallelogram arrangement mode of the low-voltage bushing is determined according to the low-voltage phase spacing requirement of a product, the low-voltage lead wires are led out according to the following modes: the head and the tail of the low-voltage B-phase lead are directly led to the position right below the corresponding sleeve, the head of the A, C-phase lead is directly led to the corresponding sleeve, the tail of the low-voltage B-phase lead is connected with the tail lead of the B-phase lead right above the low-voltage B-phase lead after being connected, and the low-voltage B-phase lead is connected to the corresponding O-phase sleeve through the tail lead of the B-.
In the embodiment, a 400kVA rolled iron core product is taken as an example, after the novel structure of the utility model is adopted, about 60 × 8 copper busbars are saved by each, about 2.1kg is saved, the resistance of the lead wire of the phase B is obviously reduced, the unbalanced resistance rate is further reduced, only one connecting copper bar needs to be manufactured at the head and the tail of the low-voltage lead wire, and the manufacturing and installation efficiency of the copper bar is greatly increased; the low-voltage bushing arrangement can make full use of the spare position in the middle of the case cover of the three-phase three-dimensional wound core product, the size of an oil tank is not increased or a lifting seat is not increased for increasing the low-voltage interphase distance, the stray loss of the oil tank of the transformer can be reduced due to the three-phase outgoing line symmetry of the low-voltage bushing arrangement, and the comprehensive competitiveness of the three-phase three-dimensional wound core transformer is improved.
Claims (4)
1. The utility model provides a three-phase three-dimensional iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for the next round of competitions which characterized in that: the low-voltage sleeves of the three-phase three-dimensional wound core transformer are arranged in a triangular or parallelogram arrangement mode, the low-voltage lead arrangement structure is matched with a box cover sleeve arrangement structure, the head and the tail of a low-voltage B-phase lead are directly led to the position under the corresponding sleeve, the head and the tail of an A, C-phase lead are directly led to the corresponding sleeve, the tail of a A, C-phase lead is connected with the tail of the B-phase lead directly above the sleeve, and the tail of the B-phase lead is connected.
2. The three-phase stereoscopic wound core low-voltage lead and bushing outgoing line arrangement structure of claim 1, wherein: the low-voltage sleeve is arranged at the spare position in the middle of the three-phase three-dimensional iron core rolling box cover.
3. The three-phase stereoscopic wound core low-voltage lead and bushing outgoing line arrangement structure of claim 1, wherein: the first copper bar and the lug of each phase lead are over against the corresponding low-voltage bushing, wherein the B phase first lead is shortened.
4. The three-phase stereoscopic wound core low-voltage lead and bushing outgoing line arrangement structure of claim 1, wherein: the tail leads of all phases are connected together and then face the O-phase sleeve, and the overall length of the O-phase lead is shortened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278265.2U CN210272018U (en) | 2019-08-08 | 2019-08-08 | Three-phase three-dimensional reel iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for next round of competitions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921278265.2U CN210272018U (en) | 2019-08-08 | 2019-08-08 | Three-phase three-dimensional reel iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for next round of competitions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210272018U true CN210272018U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921278265.2U Active CN210272018U (en) | 2019-08-08 | 2019-08-08 | Three-phase three-dimensional reel iron core low pressure lead wire and sleeve pipe arrangement structure of being qualified for next round of competitions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210272018U (en) |
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2019
- 2019-08-08 CN CN201921278265.2U patent/CN210272018U/en active Active
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