CN102938305A - Ultra/extra-high voltage AC transformer outlet device - Google Patents
Ultra/extra-high voltage AC transformer outlet device Download PDFInfo
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- CN102938305A CN102938305A CN2012104951986A CN201210495198A CN102938305A CN 102938305 A CN102938305 A CN 102938305A CN 2012104951986 A CN2012104951986 A CN 2012104951986A CN 201210495198 A CN201210495198 A CN 201210495198A CN 102938305 A CN102938305 A CN 102938305A
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Abstract
The invention discloses an ultra/extra-high voltage AC transformer outlet device. The ultra/extra-high voltage AC transformer outlet device comprises a shielding tube, a shielding ball, an inner insulation layer tightly clinging to the shielding tube and the shielding ball, and a multi-layer outer insulation layer arranged on the outer layers of the shielding tube and the shielding ball hierarchically, wherein the edge of the inner insulation layer is covered at the end part of the shielding tube and on the end face of the shielding ball; the shielding ball is connected with the end part on one end of the shielding tube; a plurality of first clamp plates are arranged at an interval between adjacent insulation layers on the outer layer of the shielding tube; the first clamp plates are arranged along a direction vertical to the axial direction of the shielding tube; an oil via-hole is formed in the first clamping plates; second clamp plates are arranged between adjacent insulation layers on the outer layer of the shielding ball, and are arranged along the axial direction of the shielding ball; an oil channel is formed among the second clamp plates; an oil via-hole is formed in the second clamp plates; and a corrugated gate is also arranged on the outer side of the outer insulation layers of the shielding ball and on the outer side of the outer insulation layers on the end part of the shielding tube. The ultra/extra-high voltage AC transformer outlet device provided by the invention has high voltage withstand capability, and can meet the voltage withstand level of 1000kV.
Description
Technical field
The present invention relates to electric insulation part field, particularly a kind of insulation outlet device for superhigh pressure or extra-high-voltage alternating current transformer.
Background technology
The rated voltage of common EHV transformer is all at 350kV to 500kV, and the rated voltage of extra-high voltage transformer is all at 750kV with more than 750kV.The high-voltage terminal device of alternation depressor is the high pressure winding high-pressure side lead-out wire of connection transformer and the insulating connecting component of supply line, therefore, must guarantee that outgoing line device has good electrical insulation properties.The outgoing line device of existing EHV transformer normally comprises metallic shield pipe and metallic shield ball, and the two is fixedly connected with, the arranged outside multilayer dielectric layer, and logical insulating oil is guaranteed insulation property between insulating barrier.Existing super extra-high-voltage alternating current transformer outgoing line device, between the insulating barrier of metallic shield pipe and metallic shield ball, adopt along the fagging of axial setting oil duct point for separate several parts, the circulation that is unfavorable for insulating oil, affect its heat-conducting effect and insulation property.
Summary of the invention
The object of the invention is to for the insulating oil circulation of the existing super extra-high-voltage alternating current transformer outgoing line device existence described in background technology not smooth, affect the problem of its heat-conducting effect and insulation property, a kind of super extra-high-voltage alternating current transformer outgoing line device that can solve foregoing problems is provided.
The technical scheme that realizes purpose of the present invention is as follows:
A kind of super extra-high-voltage alternating current transformer outgoing line device, it comprises shielded-plate tube, the shielding ball is close to respectively the inner insulating layer of shielded-plate tube and the setting of shielding ball and the multilayer external insulation layer that layering is arranged at shielded-plate tube and shielding ectosphere, inner insulating layer all will carry out bound edge on the end face of the end of shielded-plate tube and shielding ball, the shielding ball is connected in an end end of shielded-plate tube, be arranged at intervals with a plurality of the first clamps between the outer adjacent insulating barrier of shielded-plate tube, the first clamp is along the direction setting axial perpendicular to shielded-plate tube, be provided with oil through on the first clamp, shield between the insulating barrier that ectosphere is adjacent and be provided with the second clamp, the second clamp is along the axial setting of shielding ball, form logical oily oil duct between the second clamp, on the second clamp, be provided with for logical oily through hole, the outside of the external insulation layer of described shielding ball also is provided with the ripple grid, the outside of the external insulation layer of shielded-plate tube end also is provided with the ripple grid.
Further, described shielded-plate tube and shielding ball are metal material.
Described shielded-plate tube is L shaped.
In aforementioned schemes, all press effect in order to strengthen leading-out terminal, prevent the generation of corona, described shielding ball is the spheroid setting, its inner cavity that forms, and cavity one end arranges incoming line, the other end arranges line outlet, and the position near incoming line in cavity is provided with for connecting the flanged plate of shielded-plate tube.
In order to prevent that shielding ball end punctures, described shielding ball is metal material, and its two ends end face is provided with flanging.
In order to prevent that the first clamp from misplacing along with flowing of insulating oil, described the first clamp positions by the stay axially arranged along shielded-plate tube, and stay is fixed on the wall of external insulation layer correspondence position.
In order to prevent that the second clamp is along with the mobile of insulating oil misplaces, described the second clamp is by positioning to the supporting plate arranged perpendicular to the shielding ball journal, and supporting plate is fixed on the wall of external insulation layer correspondence position.
The all pressures effect brought out in order to strengthen end of incoming cables and outlet, improve voltage endurance capability, and described ripple grid are taper, and its opening direction is towards the end that the shielding ball is set.
Super extra-high-voltage alternating current transformer outgoing line device of the present invention, from shielded-plate tube one end inlet wire, bring out line from shielding ball one, shielded-plate tube one end is connected with the high pressure winding high-pressure side lead-out wire of super extra-high-voltage alternating current transformer, shielding ball one end connects supply line, shielded-plate tube is connected by the flange that is arranged on the incoming line place that shields ball with the shielding ball, shielded-plate tube is close to outward by shielded-plate tube and shielding ball and the shielding ball arranges inner insulating layer, inner insulating layer is bound edge on the end face of shielded-plate tube and shielding ball, strengthen its insulation property, the external insulation layer layering arranges, between the external insulation layer in the shielded-plate tube outside, first clamp axial perpendicular to shielded-plate tube is set, be provided with oil through on clamp, between the external insulation layer in the shielding ball outside, arrange along the shielding ball journal to the second clamp arranged, on the second clamp, be provided with for logical oily through hole, insulating oil can be circulated mutually, the oil pressure equilibrium, strengthened the circulating heat conduction effect of insulating oil, the insulation property of external insulation layer have also been improved, because during outlet, shielding ball one end vertically arranges, shielded-plate tube one end is horizontally disposed with, insulating oil flows to the shielding ball from shielded-plate tube, first clamp in the shielded-plate tube outside adopts and axially arranges perpendicular to shielded-plate tube, can enlarge the contact area between insulating oil and external insulation layer, improve its insulating properties and thermal conductivity, shielding ball place the second clamp axially arranges the circulation that can guarantee insulating oil along the shielding ball.In order further to strengthen the insulation property of super extra-high-voltage alternating current transformer outgoing line device, the arranged outside ripple grid of the external insulation layer of shielding ball, the outside of the external insulation layer of shielded-plate tube end also arranges the ripple grid, the ripple grid are taper, its opening direction is towards shielding ball one end, strengthened all pressures withstand voltage properties of super extra-high-voltage alternating current transformer outgoing line device, simultaneously, shielded-plate tube and shielding ectosphere are provided with the multilayer external insulation layer, between insulating barrier, keep at a certain distance away, increased creepage distance, improved whole voltage endurance capability, more than making the withstand voltage 1000KV of reaching of super extra-high-voltage alternating current transformer outgoing line device.
The accompanying drawing explanation
The structural representation that Fig. 1 is super extra-high-voltage alternating current transformer outgoing line device of the present invention;
Fig. 2 be in Fig. 1 A-A to cross-sectional schematic;
Fig. 3 be in Fig. 1 B-B to cross-sectional schematic;
In figure, 1 is shielded-plate tube, and 2 is the shielding ball, and 3 is inner insulating layer, and 4 is external insulation layer, and 5 is the first clamp, and 6 is oil through, and 7 is the second clamp, and 8 is through hole, and 9 is the ripple grid, and 10 is flanged plate, and 11 is stay, and 12 is supporting plate.
Embodiment
Carry out detailed illustrating below in conjunction with accompanying drawing 1 to 3 pairs of the specific embodiment of the present invention of accompanying drawing:
Embodiment 1
A kind of super extra-high-voltage alternating current transformer outgoing line device, it comprises shielded-plate tube 1, inner insulating layer 3 and layering that shielding ball 2 is close to respectively shielded-plate tube 1 and 2 settings of shielding ball are arranged at shielded-plate tube 1 and the outer field multilayer external insulation layer 4 of shielding ball 2, inner insulating layer 3 all will carry out bound edge on the end face of the end of shielded-plate tube 1 and shielding ball 2, shielding ball 2 is connected in an end end of shielded-plate tube 1, be arranged at intervals with a plurality of the first clamps 5 between the outer adjacent insulating barrier of shielded-plate tube 1, the first clamp 5 is along the direction setting axial perpendicular to shielded-plate tube 1, be provided with oil through 6 on the first clamp 5, be provided with the second clamp 7 between the outer adjacent insulating barrier of shielding ball 2, the second clamp 7 is along the axial setting of shielding ball 2, form logical oily oil duct between the second clamp 7, on the second clamp 7, be provided with for logical oily through hole 8, the outside of the external insulation layer 4 of described shielding ball 2 also is provided with ripple grid 9, the outside of the external insulation layer 4 of shielded-plate tube 1 end also is provided with ripple grid 9, above-mentioned shielded-plate tube 1 and shielding ball 2 are that metallic aluminium or metallic copper make, described shielded-plate tube 1 is L shaped.
Embodiment 2
On the basis of aforementioned schemes, all press effect in order to strengthen leading-out terminal, prevent the generation of corona, described shielding ball 2 is the spheroid setting, its inner cavity that forms, cavity one end arranges incoming line, and the other end arranges line outlet, and the position near incoming line in cavity is provided with the flanged plate 10 for connecting shielded-plate tube 1.
In order to prevent that shielding ball 2 ends punctures, described shielding ball 2 is metal material, and its two ends end face is provided with flanging.
Embodiment 3
On the basis of aforementioned schemes, in order to prevent the first clamp 5, along with flowing of insulating oil, misplace, described the first clamp 5 positions by the stay 11 axially arranged along shielded-plate tube 1, and stay 11 is fixed on the wall of external insulation layer 4 correspondence positions.
In order to prevent that the second clamp 7 is along with the mobile of insulating oil misplaces, described the second clamp 7 positions by the supporting plate 12 axially arranged perpendicular to shielding ball 2, and supporting plate 12 is fixed on the wall of external insulation layer 4 correspondence positions.
Embodiment 4
On the basis of aforementioned schemes, all pressures effect brought out in order to strengthen end of incoming cables and outlet, improve voltage endurance capability, and described ripple grid 9 are taper, and its opening direction is towards the end that shielding ball 2 is set.
Claims (8)
1. a super extra-high-voltage alternating current transformer outgoing line device, it is characterized in that: it comprises shielded-plate tube, the shielding ball is close to respectively the inner insulating layer of shielded-plate tube and the setting of shielding ball and the multilayer external insulation layer that layering is arranged at shielded-plate tube and shielding ectosphere, inner insulating layer all will carry out bound edge on the end face of the end of shielded-plate tube and shielding ball, the shielding ball is connected in an end end of shielded-plate tube, be arranged at intervals with a plurality of the first clamps between the outer adjacent insulating barrier of shielded-plate tube, the first clamp is along the direction setting axial perpendicular to shielded-plate tube, be provided with oil through on the first clamp, shield between the insulating barrier that ectosphere is adjacent and be provided with the second clamp, the second clamp is along the axial setting of shielding ball, form logical oily oil duct between the second clamp, on the second clamp, be provided with for logical oily through hole, the outside of the external insulation layer of described shielding ball also is provided with the ripple grid, the outside of the external insulation layer of shielded-plate tube end also is provided with the ripple grid.
2. super extra-high-voltage alternating current transformer outgoing line device according to claim 1 is characterized in that: described shielded-plate tube and shielding ball are metal material.
3. super extra-high-voltage alternating current transformer outgoing line device according to claim 1, it is characterized in that: described shielded-plate tube is L shaped.
4. super extra-high-voltage alternating current transformer outgoing line device according to claim 1, it is characterized in that: described shielding ball is the spheroid setting, its inner cavity that forms, cavity one end arranges incoming line, the other end arranges line outlet, and the position near incoming line in cavity is provided with for connecting the flanged plate of shielded-plate tube.
5. super extra-high-voltage alternating current transformer outgoing line device according to claim 1, it is characterized in that: described shielding ball is metal material, its two ends end face is provided with flanging.
6. super extra-high-voltage alternating current transformer outgoing line device according to claim 1 is characterized in that: described the first clamp positions by the stay axially arranged along shielded-plate tube, and stay is fixed on the wall of external insulation layer correspondence position.
7. super extra-high-voltage alternating current transformer outgoing line device according to claim 1 is characterized in that: described the second clamp is by positioning to the supporting plate arranged perpendicular to the shielding ball journal, and supporting plate is fixed on the wall of external insulation layer correspondence position.
8. super extra-high-voltage alternating current transformer outgoing line device according to claim 1, it is characterized in that: described ripple grid are taper, its opening direction is towards the end that the shielding ball is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495198.6A CN102938305B (en) | 2012-11-28 | 2012-11-28 | Super extra-high-voltage alternating current transformer outgoing line device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210495198.6A CN102938305B (en) | 2012-11-28 | 2012-11-28 | Super extra-high-voltage alternating current transformer outgoing line device |
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| Publication Number | Publication Date |
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| CN102938305A true CN102938305A (en) | 2013-02-20 |
| CN102938305B CN102938305B (en) | 2016-01-06 |
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| CN201210495198.6A Active CN102938305B (en) | 2012-11-28 | 2012-11-28 | Super extra-high-voltage alternating current transformer outgoing line device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558404A (en) * | 2015-09-24 | 2017-04-05 | 特变电工衡阳变压器有限公司 | The outlet structure and high-impedance transformer of high-impedance transformer |
| CN107689286A (en) * | 2017-07-03 | 2018-02-13 | 卧龙电气集团股份有限公司 | The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection |
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| CN101425369A (en) * | 2008-05-07 | 2009-05-06 | 常州市英中电气有限公司 | Insulation voltage equalizing ball used for super-high or extra-high voltage transformer and production process thereof |
| CN101425370A (en) * | 2008-05-07 | 2009-05-06 | 常州市英中电气有限公司 | The insulation balance pipe and the manufacture method thereof that are used for superhigh pressure or extra-high voltage transformer |
| CN201262883Y (en) * | 2008-08-27 | 2009-06-24 | 保定天威集团有限公司 | Two-pole parallel connection end 500kV outlet device OF transformer |
| CN202134348U (en) * | 2011-07-27 | 2012-02-01 | 广东长牛电气有限公司 | Oil-immersed type transformer |
| CN202189105U (en) * | 2011-07-28 | 2012-04-11 | 中国电力科学研究院 | System for testing insulation reliability of ultra-high pressure wire outlet device |
| CN202996534U (en) * | 2012-11-28 | 2013-06-12 | 常州市英中电气有限公司 | Extra-high voltage alternating current transformer line coiling-out device |
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2012
- 2012-11-28 CN CN201210495198.6A patent/CN102938305B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425369A (en) * | 2008-05-07 | 2009-05-06 | 常州市英中电气有限公司 | Insulation voltage equalizing ball used for super-high or extra-high voltage transformer and production process thereof |
| CN101425370A (en) * | 2008-05-07 | 2009-05-06 | 常州市英中电气有限公司 | The insulation balance pipe and the manufacture method thereof that are used for superhigh pressure or extra-high voltage transformer |
| CN201262883Y (en) * | 2008-08-27 | 2009-06-24 | 保定天威集团有限公司 | Two-pole parallel connection end 500kV outlet device OF transformer |
| CN202134348U (en) * | 2011-07-27 | 2012-02-01 | 广东长牛电气有限公司 | Oil-immersed type transformer |
| CN202189105U (en) * | 2011-07-28 | 2012-04-11 | 中国电力科学研究院 | System for testing insulation reliability of ultra-high pressure wire outlet device |
| CN202996534U (en) * | 2012-11-28 | 2013-06-12 | 常州市英中电气有限公司 | Extra-high voltage alternating current transformer line coiling-out device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558404A (en) * | 2015-09-24 | 2017-04-05 | 特变电工衡阳变压器有限公司 | The outlet structure and high-impedance transformer of high-impedance transformer |
| CN106558404B (en) * | 2015-09-24 | 2018-11-20 | 特变电工衡阳变压器有限公司 | The outlet structure and high-impedance transformer of high-impedance transformer |
| CN107689286A (en) * | 2017-07-03 | 2018-02-13 | 卧龙电气集团股份有限公司 | The outlet shielding construction and its installation method of a kind of 500kV high-power transformers high-voltage connection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102938305B (en) | 2016-01-06 |
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Inventor after: Li Jinzhong Inventor after: Cheng Huanchao Inventor after: Wang Ninghua Inventor after: Yu Yingzhong Inventor after: Han Xiancai Inventor after: Wang Xiaoning Inventor after: Wang Shaowu Inventor after: Sun Gang Inventor after: Sun Jiantao Inventor after: Zhang Shuqi Inventor after: Gao Fei Inventor before: Yu Yingzhong |
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Effective date of registration: 20170420 Address after: Beijing City, Haidian District Qinghe small Camp Road No. 15 Co-patentee after: Changzhou Yingzhong Electrical Co., Ltd. Patentee after: China Electric Power Research Institute Address before: 213012 Jiangsu Province, the clock tower Development Zone, Changzhou Road, No. 385 Patentee before: Changzhou Yingzhong Electrical Co., Ltd. |
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| TR01 | Transfer of patent right |