CN202796367U - High-voltage lead connection box for dry type transformer - Google Patents
High-voltage lead connection box for dry type transformer Download PDFInfo
- Publication number
- CN202796367U CN202796367U CN201220458839.6U CN201220458839U CN202796367U CN 202796367 U CN202796367 U CN 202796367U CN 201220458839 U CN201220458839 U CN 201220458839U CN 202796367 U CN202796367 U CN 202796367U
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- voltage
- transformer
- delta connection
- connection leads
- phase high
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Abstract
The utility model relates to a high-voltage lead connection box for a dry type transformer. The high-voltage lead connection box comprises a transformer A, B and C three-phase high-voltage head terminal, a transformer X, Y and Z three-phase high-voltage tail terminal, and high-voltage delta connection leads A-Z, B-X and C-Y, which are originally located outside; and the transformer X, Y and Z three-phase high-voltage tail terminal and the high-voltage delta connection leads A-Z, B-X and C-Y are integrally mounted inside a junction box, and are poured and covered to be an epoxy resin insulating layer in a sealed manner. The high-voltage lead connection box provided by the beneficial effects that the three high-voltage delta connection leads A-Z, B-X and C-Y are integrally poured by epoxy resin, and are sealed inside the junction box, so that the delta connection leads are isolated from the outside, and the problem of sudden short circuit caused by entering of foreigner matter can be solved; and the epoxy resin for pouring is sealed and insulated, and the junction box has no needs of considering the large air insulation interval, so that the size can be reduced. Thus, the large-capacity product space is not enough, and the problem that the delta connection leads cannot be connected can be solved.
Description
Technical field
The utility model relates to a kind of dry-type transformer high-voltage connection connecting box.
Background technology
Common 10kV electric pressure dry-type distribution transformer, it all is by high-voltage connection that its 10kV side △ connects high-voltage connection, outside at transformer high-voltage coil, the coil two ends is connected into required delta connection, shown in accompanying drawing 3,4; The shortcoming of this structure is: 1, three high pressure △ meet lead-in wire A-Z, B-X, C-Y all concentrates on the transformer outside, when product is in "on" position, in case have toy or other nonisulated foreign matters to fall into the high-voltage connection zone, very easily cause sudden short circuit accident between lead-in wire; 2, owing to three high pressure △ meet lead-in wire A-Z, B-X, C-Y all concentrates on the transformer outside, for guaranteeing aerial insulation distance, it is larger to take up room, the product that capacity is less, little because of volume own, do not have the space to satisfy lead-in wire and arrange, thereby cause product structure design because of difficulty.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of dry-type transformer high-voltage connection connecting box.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of dry-type transformer high-voltage connection connecting box comprises that originally being positioned at outside transformer A, B, C three-phase high-voltage head end, transformer X, Y, Z three-phase high-voltage tail end and high pressure △ meets lead-in wire A-Z, B-X, C-Y; With transformer A, B, C three-phase high-voltage head end, transformer X, Y, Z three-phase high-voltage tail end and high pressure △ meet lead-in wire A-Z, B-X, C-Y all installs concentratedly in a terminal box, and sealed cast and cover ring epoxy resins insulating barrier.
The beneficial effects of the utility model are: 1, three high pressure △ meet lead-in wire A-Z, B-X, C-Y and all concentrate casting epoxy resin, be sealed in the terminal box, utilize the excellent electric insulating properties of epoxy resin exhausted, guarantee that △ connects lead-in wire and is isolated from the outside, thereby avoid entering problem and the defective that causes sudden short circuit because of foreign matter.
2, because the casting epoxy resin sealed insulation need not the very large air insulation clearance of consideration in the terminal box, can reduce volume, thereby solution small-capacity product space is inadequate, can't connect △ and connect pin problem.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 left view.
Fig. 3 is existing dry-type transformer high-voltage connection connection diagram.
Fig. 4 is Fig. 3 left view.
Embodiment
Embodiment 1As shown in Figure 1, 2: a kind of dry-type transformer high-voltage connection connecting box comprises that originally being positioned at outside transformer A, B, C three-phase high-voltage head end 1, transformer X, Y, Z three-phase high-voltage tail end 3 and high pressure △ meets lead-in wire A-Z, B-X, C-Y2; With transformer A, B, C three-phase high-voltage head end 1, transformer X, Y, Z three-phase high-voltage tail end 3 and high pressure △ meet lead-in wire A-Z, B-X, C-Y2 all installs concentratedly in a terminal box 4, and sealed cast cover ring epoxy resins insulating barrier; Guarantee that △ connects lead-in wire and is isolated from the outside, thereby avoid entering the problem that causes sudden short circuit because of foreign matter.
Claims (1)
1. dry-type transformer high-voltage connection connecting box, comprise that transformer A, the B, C three-phase high-voltage head end (1), transformer X, Y, Z three-phase high-voltage tail end (3) and the high pressure △ that originally are positioned at the outside meet lead-in wire A-Z, B-X, C-Y(2), it is characterized in that: transformer A, B, C three-phase high-voltage head end (1), transformer X, Y, Z three-phase high-voltage tail end (3) and high pressure △ are met lead-in wire A-Z, B-X, C-Y(2) all install concentratedly in a terminal box (4), and sealing cover ring epoxy resins insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220458839.6U CN202796367U (en) | 2012-09-11 | 2012-09-11 | High-voltage lead connection box for dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220458839.6U CN202796367U (en) | 2012-09-11 | 2012-09-11 | High-voltage lead connection box for dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796367U true CN202796367U (en) | 2013-03-13 |
Family
ID=47823578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220458839.6U Expired - Lifetime CN202796367U (en) | 2012-09-11 | 2012-09-11 | High-voltage lead connection box for dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489590A (en) * | 2013-10-10 | 2014-01-01 | 四川风发电气科技有限公司 | Solid high-voltage pin configuration of rolled iron core resin pouring dry type transformer |
| WO2019169605A1 (en) * | 2018-03-08 | 2019-09-12 | Siemens Aktiengesellschaft | Methods, apparatus and systems for dry-type transformers |
-
2012
- 2012-09-11 CN CN201220458839.6U patent/CN202796367U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489590A (en) * | 2013-10-10 | 2014-01-01 | 四川风发电气科技有限公司 | Solid high-voltage pin configuration of rolled iron core resin pouring dry type transformer |
| CN103489590B (en) * | 2013-10-10 | 2017-04-05 | 四川风发电气科技有限公司 | A kind of high pressure lead wire structure of three dimensional wound core resin casting dry-type transformer |
| WO2019169605A1 (en) * | 2018-03-08 | 2019-09-12 | Siemens Aktiengesellschaft | Methods, apparatus and systems for dry-type transformers |
| US11017938B2 (en) | 2018-03-08 | 2021-05-25 | Siemens Energy Global GmbH & Co. KG | Methods, apparatus and systems for dry-type transformers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |