CN204045321U - A kind of power transformer static board structure - Google Patents
A kind of power transformer static board structure Download PDFInfo
- Publication number
- CN204045321U CN204045321U CN201420496077.8U CN201420496077U CN204045321U CN 204045321 U CN204045321 U CN 204045321U CN 201420496077 U CN201420496077 U CN 201420496077U CN 204045321 U CN204045321 U CN 204045321U
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- wire
- static board
- lead
- protruding head
- power transformer
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Abstract
The utility model relates to a kind of power transformer static board structure, is provided with the opening of drawing lead-in wire, tapping similar shape perforate on the static board skeleton at this place at the winding protruding head place of static board skeleton; Static board lead-in wire is copper electric brush wire outsourcing insulating forms; Static board lead-in wire to be colded pressing connection with the form of sleeve with winding protruding head; Winding protruding head lead-in wire is active line.Welding quality of the present utility model can be ensured, decreases the potential safety hazard that the electrode protrusion at a pad place and weld turn insulation are destroyed and cause, improves the efficiency of assembling of coil operation.
Description
Technical field
The utility model relates to a kind of power transformer manufacturing technology, specifically a kind of power transformer static board structure.
Background technology
At present, along with the raising gradually of electric power system transmission voltage grade, also propose requirements at the higher level to the insulation level of power transformer, the mature structure static board as homogenizing power transformer winding end field intensity is in industry used widely.Traditional static board lead-in wire copper strap wire 1 makes, one end and static board electrode welding (see going between and static board electrode contact 2), the other end draws rear and coil working wire bonding from the end face near coil, lead-in wire like this will to be creeped a segment distance along coil end face, the wrapping quality of lead wire insulation directly can have influence on the safe operation of equipment, and the pad electrode caused by welding procedure outstanding (see lead-in wire and active line pad 5) also can make this electric field distort, cause winding partial discharge, weld need process again to after active line insulation breakdown, so also potential safety hazard can be brought.Be difficult to ensure due to the flow harden welding quality of copper strap wire with the position of static board electrode welding, easily rupture.In addition, because the particularity of copper conductor welding procedure also can bring harmful effect to the production cycle in operation.
Utility model content
For the lead-in wire in transformer static board structure in prior art and electrode welding means of spot welds difficult quality guarantee, go between draw on path and between active line potential difference comparatively large and go between and active line weld electric field distortion etc. to equipment safety operation bring hidden danger etc. deficiency, the technical problems to be solved in the utility model is to provide a kind of power transformer static board structure ensureing welding quality, avoid potential safety hazard.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of power transformer static board of the utility model structure, is provided with the opening of drawing lead-in wire, tapping similar shape perforate on the static board skeleton at this place at the winding protruding head place of static board skeleton.
Static board lead-in wire is copper electric brush wire outsourcing insulating forms.
Static board lead-in wire to be colded pressing connection with the form of sleeve with winding protruding head; Winding protruding head lead-in wire is active line.The utility model has following beneficial effect and advantage:
1. static board of the present utility model lead-in wire is formed with the form of copper electric brush wire outsourcing insulation, and therefore the welding quality of itself and static board electrode connection can be ensured.
2. static board of the present utility model lead-in wire is after opening part that winding protruding head designs is drawn from static board, cold pressing to together with winding protruding head with the form of sleeve, lead-in wire itself is far away apart from coil first section of first line cake thus, electric field strength is less therebetween, and change winding protruding head with the link position of active line into by the first cake active line and go between, first section of the first cake line decreases the potential safety hazard that the electrode protrusion at a pad place and weld turn insulation are destroyed and cause.
3. the utility model is in operational sequence, and more traditional static board structure also greatly simplifies, and improves the efficiency of assembling of coil operation.
Accompanying drawing explanation
Fig. 1 is that in prior art, path schematic diagram (vertical view) drawn by static board lead-in wire;
Fig. 2 is conventional electrostatic plate lead-in wire and electrode welding position view (in Fig. 1 B-B view);
Fig. 3 is conventional electrostatic plate lead-in wire and active line welding position schematic diagram (in Fig. 1 A-A view);
Fig. 4 is that path schematic diagram (vertical view) drawn by the utility model static board lead-in wire;
Fig. 5 is the utility model static board lead-in wire extraction location schematic diagram (in Fig. 4 E-E view);
Fig. 6 is that the utility model static board lead-in wire to be colded pressing connection diagram with active line.
Wherein: 1 is static board lead-in wire (paper-covered copper flat wire), 2 is lead-in wire and static board electrode contact, 3 is static board skeleton, 4 is maximum field strength between static board lead-in wire and active line cake, and 5 is lead-in wire and active line pad, and 6 is coil, 7 is winding protruding head extraction place static board opening, 8 is winding protruding head, and 9 is lead-in wire sleeve, and 10 is the static board lead-in wire adopting the insulation of copper electric brush wire bag.
Embodiment
Below in conjunction with Figure of description, the present invention is further elaborated.
As shown in figures 4-6, a kind of power transformer static board of the utility model structure, is provided with the opening for drawing lead-in wire at the winding protruding head place of static board skeleton, the perforate of tapping and lead-in wire similar shape on the static board skeleton at this place.Static board lead-in wire is copper electric brush wire outsourcing insulating forms.Static board lead-in wire to be colded pressing connection with the form of sleeve with winding protruding head; Winding protruding head lead-in wire is active line.
The utility model power transformer static board structure, by selecting copper electric brush wire outsourcing to insulate for the method for lead-in wire improves lead-in wire and the interelectrode welding quality of static board, and extraction location online design is irised out in the static board opening 7 at head place, the perforate (as shown in Figure 5) of tapping and lead-in wire similar shape on the static board skeleton at this place, with the path providing lead-in wire to draw, avoid the field intensity more closely caused with active line in lead-in wire extraction path excessive; Static board lead-in wire 1 adopts with the connection of coil working line sleeve 9 structure that goes between, avoid electrode protrusion that welding sequence causes, electric field distortion and owing to welding complexity itself and the low phenomenon of the efficiency of assembling that causes, effectively improve the fail safe that equipment runs, in operational sequence, more traditional static board structure also greatly simplifies, and improves the efficiency of assembling of coil operation.
Static board of the present utility model lead-in wire is after opening part that winding protruding head designs is drawn from static board, cold pressing to together with winding protruding head with the form of sleeve, lead-in wire itself is far away apart from coil first section of first line cake thus, electric field strength is less therebetween, and change winding protruding head with the link position of active line into by the first cake active line and go between, first section of the first cake line decreases the potential safety hazard that the electrode protrusion at a pad place and weld turn insulation are destroyed and cause.
Claims (3)
1. a power transformer static board structure, is characterized in that: be provided with the opening of drawing lead-in wire at the winding protruding head place of static board skeleton, tapping similar shape perforate on the static board skeleton at this place.
2. by power transformer static board structure according to claim 1, it is characterized in that: static board lead-in wire is copper electric brush wire outsourcing insulating forms.
3. by power transformer static board structure according to claim 1, it is characterized in that: static board lead-in wire to be colded pressing connection with the form of sleeve with winding protruding head; Winding protruding head lead-in wire is active line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496077.8U CN204045321U (en) | 2014-08-29 | 2014-08-29 | A kind of power transformer static board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496077.8U CN204045321U (en) | 2014-08-29 | 2014-08-29 | A kind of power transformer static board structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045321U true CN204045321U (en) | 2014-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420496077.8U Active CN204045321U (en) | 2014-08-29 | 2014-08-29 | A kind of power transformer static board structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204045321U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719802A (en) * | 2014-12-05 | 2016-06-29 | 特变电工沈阳变压器集团有限公司 | Electrostatic plate structure for transformer |
| CN107591234A (en) * | 2016-07-07 | 2018-01-16 | 特变电工超高压电气有限公司 | Wound iron-core transformer static board and its processing method, Wound iron-core transformer |
-
2014
- 2014-08-29 CN CN201420496077.8U patent/CN204045321U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719802A (en) * | 2014-12-05 | 2016-06-29 | 特变电工沈阳变压器集团有限公司 | Electrostatic plate structure for transformer |
| CN107591234A (en) * | 2016-07-07 | 2018-01-16 | 特变电工超高压电气有限公司 | Wound iron-core transformer static board and its processing method, Wound iron-core transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |