CN202363225U - Parallel-wired constant-voltage pipe structure in extra-high voltage large-capacity transformer - Google Patents
Parallel-wired constant-voltage pipe structure in extra-high voltage large-capacity transformer Download PDFInfo
- Publication number
- CN202363225U CN202363225U CN2011205002397U CN201120500239U CN202363225U CN 202363225 U CN202363225 U CN 202363225U CN 2011205002397 U CN2011205002397 U CN 2011205002397U CN 201120500239 U CN201120500239 U CN 201120500239U CN 202363225 U CN202363225 U CN 202363225U
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- constant
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- balance pipe
- pipe
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Abstract
The utility model relates to a parallel-wired constant-voltage pipe structure in an extra-high voltage large-capacity transformer, belonging to the technical field of a transformer. According to the technical scheme, the parallel-wired constant-voltage pipe structure in the extra-high voltage large-capacity transformer comprises constant-voltage pipes I (1), constant-voltage pipes II (2), a corrugated paperboard (3), an insulating paperboard (4), an insulating paper cylinder (5) and a copper bolt (6); the constant-voltage pipes I are arranged at the both ends; the split constant-voltage pipe II is arranged in the middle; the constant-voltage pipes I and the constant-voltage pipe II are fastened by the copper screw; the constant-voltage pipe II and a connection parts of the constant-voltage pipe II and the constant-voltage pipe I are coated by the insulating paper cylinder; and the insulating paper cylinder is externally coated by the corrugated paperboard and the insulating paperboard. The parallel-wired constant-voltage pipe structure provided by the utility model is divided into three parts, the constant-voltage pipes I are arranged at the both ends, and the split constant-voltage pipe II is arranged in the middle, so that the connection of a lead wire and the installation of the constant-voltage pipes are convenient. The parallel-wired constant-voltage pipe structure provided by the utility model can be mounted close to the center line of a long shaft of an oil tank as far as possible, so as to ensure an enough insulating distance of the oil tank and solve the problem of small space. The parallel-wired constant-voltage pipe structure provided by the utility model is suitable for being used on the extra-high voltage large-capacity transformer.
Description
Technical field
The utility model relates to the balance pipe structure of parallelly connected line in a kind of ultra high voltage high-power transformer, belongs to the transformer technology field.
Background technology
In superhigh pressure, high-power transformer,, reduce electric field and concentrate and be enclosed within lead-in wire outer copper pipe or aluminum pipe and be called balance pipe in order to improve the lead-in wire electrode shape.Its effect is that balance pipe is enclosed within thinner or irregular lead-in wire outside; Make lead-in wire become the electric field of thick balance pipe to other electrodes to the electric field of other electrodes; Thereby effectively reduce the coefficient of concentration of electric field, make lead-in wire around electric field become comparatively even, increase coefficient of safety.For the electric pressure lower position; Can directly adopt lead-in wire to connect between the two post coils, but adopt lead-in wire directly to connect, because lead-in wire is thin and out-of-shape for the high voltage position; Cause the electric field distortion, part position possibility electric field is too high to cause that transformer discharges even puncture.Therefore for superhigh pressure, high-power transformer parallel-connection structure, end 500kV or middle part 750kV and middle part 1000kV shunt leads need add balance pipe.Owing to transported boundary and limited; The fuel tank size is less relatively; 500kV or middle part 750kV and the middle part residing useful space of 1000kV shunt leads are little; Therefore can not to exceed device body size too many for balance pipe, and balance pipe should have enough insulation margins to fuel tank and other structural members simultaneously, and the balance pipe structure should be convenient to self installation, fix.
The utility model content
The purpose of the utility model provides the balance pipe structure of parallelly connected line in a kind of ultra high voltage high-power transformer, as far as possible near the fuel tank center, is convenient to operation, solves the problems referred to above that background technology exists.
The technical scheme of the utility model is: the balance pipe structure of parallelly connected line in the ultra high voltage high-power transformer; Comprise balance pipe one, balance pipe two, corrugated board, insulating board, insulating paper cylinder and brass screw; Two ends are whole balance pipe one, and the centre is the balance pipe two of split, and balance pipe one is fastening through brass screw with balance pipe two; The connecting portion wrap insulate paper web of balance pipe two and balance pipe two and balance pipe one is at insulating paper cylinder coated outside corrugated board and insulating board.
Balance pipe one is an overall structure, is processed copper pipe external application 4～10mm heavy insulation paper pulp by diameter 100～185mm copper pipe; Outside the balance pipe two concentric insulating paper cylinder is set, insulating paper cylinder outerwrap corrugated board, insulating paper cylinder is divided into small oil gap with the outer oil duct of balance pipe.
The good effect of the utility model: the utility model adopts split-type structural, is divided into three parts, and two ends are whole balance pipe one, and the centre is the balance pipe two of split; Be convenient to lead-in wire connection and balance pipe and install, the utility model is installed and can be guaranteed that fuel tank has enough insulation distances as much as possible near fuel tank major axis center line simultaneously, has solved the little problem in space.The utility model suits on ultra-voltage, high-power transformer, to adopt.
Description of drawings
Fig. 1 the utility model embodiment assembles sketch map;
Fig. 2 the utility model embodiment balance pipe one sketch map;
Among the figure: balance pipe 1, balance pipe 22, corrugated board 3, insulating board 4, insulating paper cylinder 5, brass screw 6, equipotential line nut 7, grading ring 8, balance pipe 9, insulation paper pulp 10.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified through embodiment.
The balance pipe structure of parallelly connected line in the ultra high voltage high-power transformer; Comprise balance pipe 1, balance pipe 22, corrugated board 3, insulating board 4, insulating paper cylinder 5 and brass screw 6; Two ends are whole balance pipe one, and the centre is the balance pipe two of split, and balance pipe one is fastening through brass screw with balance pipe two; The connecting portion wrap insulate paper web of balance pipe two and balance pipe two and balance pipe one is at insulating paper cylinder coated outside corrugated board and insulating board.
Balance pipe one is an overall structure, the balance pipe 9 external applications insulation paper pulp of processing by copper pipe 10, and be provided with grading ring 8; Outside the balance pipe two concentric insulating paper cylinder is set, insulating paper cylinder outerwrap corrugated board, insulating paper cylinder is divided into small oil gap with the outer oil duct of balance pipe.
Balance pipe one is installed earlier during assembling, is connected lead-in wire, the equipotential line between lead-in wire and the balance pipe two is bound up on the equipotential line nut 7 of balance pipe.
Claims (2)
1. the balance pipe structure of parallelly connected line in the ultra high voltage high-power transformer; It is characterized in that: comprise balance pipe one (1), balance pipe two (2), corrugated board (3), insulating board (4), insulating paper cylinder (5) and brass screw (6); Two ends are whole balance pipe one; The centre is the balance pipe two of split; Balance pipe one is fastening through brass screw with balance pipe two, and the connecting portion wrap insulate paper web of balance pipe two and balance pipe two and balance pipe one is at insulating paper cylinder coated outside corrugated board and insulating board.
2. according to the balance pipe structure of parallelly connected line in the said ultra high voltage high-power transformer of claim 1, it is characterized in that balance pipe one is overall structure, balance pipe (9) the external application insulation paper pulp of processing by copper pipe (10), and be provided with grading ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205002397U CN202363225U (en) | 2011-12-06 | 2011-12-06 | Parallel-wired constant-voltage pipe structure in extra-high voltage large-capacity transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205002397U CN202363225U (en) | 2011-12-06 | 2011-12-06 | Parallel-wired constant-voltage pipe structure in extra-high voltage large-capacity transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363225U true CN202363225U (en) | 2012-08-01 |
Family
ID=46574394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205002397U Expired - Lifetime CN202363225U (en) | 2011-12-06 | 2011-12-06 | Parallel-wired constant-voltage pipe structure in extra-high voltage large-capacity transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558417A (en) * | 2015-09-30 | 2017-04-05 | 特变电工衡阳变压器有限公司 | The lead wire connection method of extra-high voltage transformer, lead link structure and extra-high voltage transformer |
-
2011
- 2011-12-06 CN CN2011205002397U patent/CN202363225U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558417A (en) * | 2015-09-30 | 2017-04-05 | 特变电工衡阳变压器有限公司 | The lead wire connection method of extra-high voltage transformer, lead link structure and extra-high voltage transformer |
| CN106558417B (en) * | 2015-09-30 | 2019-06-21 | 特变电工衡阳变压器有限公司 | Lead wire connection method, lead wire connection structure and the extra-high voltage transformer of extra-high voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 071051 BAODING, HEBEI PROVINCE TO: 071056 BAODING, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131118 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071051, Hebei City, Baoding province ginkgo Road, No. 198 Jin Di garden complex Patentee before: Baoding Tianwei Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120801 |