CN102930962A - Valve side wire outlet device of super-high voltage converter transformer - Google Patents
Valve side wire outlet device of super-high voltage converter transformer Download PDFInfo
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- CN102930962A CN102930962A CN2012104583984A CN201210458398A CN102930962A CN 102930962 A CN102930962 A CN 102930962A CN 2012104583984 A CN2012104583984 A CN 2012104583984A CN 201210458398 A CN201210458398 A CN 201210458398A CN 102930962 A CN102930962 A CN 102930962A
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Abstract
The invention discloses a valve side wire outlet device of a super-high voltage converter transformer. The valve side wire outlet device comprises a shielding pipe, a shielding ball and an inlet wire shielding head, wherein the inlet wire shielding head is connected to a sidewall of the shielding pipe through a tee; the shielding pipe, the shielding ball and the inlet wire shielding head are made of metal materials; the shielding pipe is fixedly connected with the lower end of the shielding ball; an insulating layer is arranged adjacent to an outer wall of the shielding pipe, the shielding ball and the inlet wire shielding head; multiple outer insulating layers are arranged at the outer side of the inner insulating layer in various layers; and an oil path supporting strip is arranged between the adjacent outer insulating layers. The valve side wire outlet device of the super-high voltage converter transformer has greater voltage resistance, and is more applicable to a valve side of the super-high voltage converter transformer.
Description
Technical field
The present invention relates to electric insulation spare field, particularly a kind of insulation outlet device of the converter valve side for superhigh pressure or UHV.
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 the 750KV.The outgoing line device of converter transformer is to be divided into valve side and two parts of net side, the outgoing line device of valve side is divided into the outgoing line device on top and the outgoing line device of bottom, the two structure is basic identical, this outgoing line device is the seal that connects converter valve and Transformer Winding coil, therefore, must guarantee that valve side outgoing line device has good electrical insulation properties.The valve side outgoing line device of existing EHV transformer still can't satisfy the requirement of withstand voltage of super UHV, therefore, need to make improvements, and improves its voltage withstand class.
Summary of the invention
The object of the invention is to satisfy for the existing super extreme high voltage converter transformer valve-side outgoing line device described in the background technology problem of the requirement of withstand voltage of super UHV, a kind of super extreme high voltage converter transformer valve-side 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 extreme high voltage converter transformer valve-side outgoing line device, it comprises shielded-plate tube, shielding ball and inlet wire shielding head, inlet wire shielding head is connected on the sidewall of shielded-plate tube by threeway, shielded-plate tube, shielding ball and inlet wire shielding head are metal material, shielded-plate tube is fixedly connected with the lower end of shielding ball, the outer wall of being close to shielded-plate tube, shielding ball and inlet wire shielding head arranges inner insulating layer, and the outside layering of inner insulating layer is provided with the multilayer external insulation layer, and the oil duct stay is set between the adjacent external insulation layer.
In order to ensure the insulation shielding of inlet wire, described inlet wire shielding head is L shaped, and its upper end is column tube, and the lower end is docked in the described threeway, and an inlet wire shielding outer field external insulation layer is corresponding with the external insulation layer of shielded-plate tube, and inner oil duct connects mutually.
In order to improve shielded-plate tube and the quality of connection that shields head, described shielding ball and shielded-plate tube are welded to connect, and the shielded-plate tube end is provided with the excessive face of taper with the position that the shielding ball is connected.
In order to eliminate the corona on shielding ball top, increase its edge radius of curvature, described shielding ball top is provided with the flanging that is wrapped up by inner insulating layer.
Assembling for the ease of super extreme high voltage converter transformer valve-side outgoing line device, and structure and inner oil duct that can the External Insulation layer when guaranteeing to assemble damage, be provided with assembly parts on the external insulation layer in the described shielding ball outside, these assembly parts comprise outer sleeve and support tube, the support tube lower end is cylindricality, is fixed in the external insulation layer in the shielding ball outside, and the support tube middle part is taper, the upper end of support tube is cylindricality, is fixedly connected with the upper end of outer sleeve.
Further, in order to protect external insulation layer and oil duct, be provided with a plurality of Y shape strutting pieces between described outer sleeve and the external insulation layer, two arms of Y shape strutting piece connect respectively outer sleeve and external insulation layer.
Dispersion production and unified assembling for convenient super extreme high voltage converter transformer valve-side outgoing line device, the external insulation layer of shielded-plate tube outside is subsection setup, sealing in order to ensure connecting portion, avoid the leakage of insulating oil, ensure the shielding insulation effect, the inclined-plane of the insulating barrier of connecting portion for mutually agreeing with, the two bonds together by insulation glue, in the connecting portion outer setting sealing ring is arranged.
Described shielded-plate tube sidewall is a determining deviation and is provided with several inlet wire shielding heads, and one of them inlet wire shielding head is arranged at the tail end of shielded-plate tube.
Dispersion production and unified assembling for the ease of each inlet wire shielding head, be provided with interfacing part in the outer layer insulation of the shielded-plate tube part between the docking site adjacent inlet wire shielding head, this interfacing part one end is sleeve, sleeve lining is provided with inwardly protruded twice bulge loop, form stopper slot between the bulge loop, the interfacing part other end is the protruding guide vane end stop corresponding with stopper slot, is provided be used to the breach that passes protruding guide vane end stop on the bulge loop in the outside.
In order to guarantee the sealing of shielded-plate tube tail end, described shielded-plate tube tail end is the bulb shape of sealing, for the ease of the assembling of super extreme high voltage converter transformer valve-side outgoing line device, its outer insulation afterbody is provided with the fixed mount for fixing super extreme high voltage converter transformer valve-side outgoing line device.
Super extreme high voltage converter transformer valve-side outgoing line device of the present invention, mutual seamless link by shielded-plate tube, shielding ball and inlet wire shielding head and inner insulating layer thereof, external insulation layer cooperates, strengthened all pressures withstand voltage properties of super extra-high-voltage alternating current transformer outgoing line device, withstand voltage reaching more than the 1000KV.Simultaneously, because the common volume of super extreme high voltage converter transformer valve-side outgoing line device is larger, one piece is shaped difficult, therefore, it is divided into a plurality of parts separately produces, after each several part is produced, fit together in the requirement according to finished product, both reduce the difficulty of producing, improved again production efficiency.
Description of drawings
Fig. 1 is the structural representation of the bottom outgoing line device of super extreme high voltage converter transformer valve-side outgoing line device of the present invention;
Fig. 2 be among Fig. 1 A-A to cross-sectional schematic;
Fig. 3 be among Fig. 1 B-B to cross-sectional schematic;
Among the figure, 1 is shielded-plate tube, and 2 are the shielding ball, and 3 are inlet wire shielding head, 4 are threeway, and 5 is inner insulating layer, and 6 is external insulation layer, 7 is the oil duct stay, and 8 are the excessive face of taper, and 9 is flanging, 10 is outer sleeve, and 11 is support tube, and 12 is the Y shape strutting piece, 13 is fixed mount, and 14 is the inclined-plane, and 15 is sealing ring, 16 is sleeve, and 17 is stopper slot, and 18 is protruding guide vane end stop.
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 extreme high voltage converter transformer valve-side outgoing line device, it comprises shielded-plate tube 1, the shielding of shielding ball 2 and inlet wire 3, inlet wire shielding 3 is connected on the sidewall of shielded-plate tube 1 by threeway 4, shielded-plate tube 1, the shielding of shielding ball 2 and inlet wire 3 is metal material, shielded-plate tube 1 is fixedly connected with the lower end of shielding ball 2, the outer wall of being close to shielded-plate tube 1, the shielding of shielding ball 2 and inlet wire 3 arranges inner insulating layer 5, the outside layering of inner insulating layer 5 is provided with multilayer external insulation layer 6, between the adjacent external insulation layer 6 oil duct stay 7 is set.Inner insulating layer 5 outer setting have 6 layers of outer insulation, between the adjacent external insulation layer 6 oil duct stay 7 are set.
In order to ensure the insulation shielding of inlet wire, described inlet wire shielding 3 be L shaped, and its upper end is column tube, and the lower end is docked in the described threeway 4, and it is corresponding with the external insulation layer 6 of shielded-plate tube 1 that inlet wire shields 3 an outer field external insulation layer 6, and inner oil duct connects mutually.
On the basis of aforementioned schemes, in order to improve shielded-plate tube 1 and the quality of connection that shields head, described shielding ball 2 is welded to connect with shielded-plate tube 1, and shielded-plate tube 1 end is provided with the excessive face 8 of taper with the position that shielding ball 2 is connected.
In order to eliminate the corona on shielding ball 2 tops, increase its edge radius of curvature, described shielding ball 2 tops are provided with the flanging 9 that is wrapped up by inner insulating layer 5.
On the basis of aforementioned schemes, assembling for the ease of super extreme high voltage converter transformer valve-side outgoing line device, and structure and inner oil duct that can External Insulation layer 6 when guaranteeing to assemble damage, be provided with assembly parts on the external insulation layer 6 in described shielding ball 2 outsides, these assembly parts comprise outer sleeve 10 and support tube 11, support tube 11 lower ends are cylindricality, be fixed in the external insulation layer 6 in shielding ball 2 outsides, support tube 11 middle parts are taper, the upper end of support tube 11 is cylindricality, is fixedly connected with the upper end of outer sleeve 10.
Further, in order to protect external insulation layer 6 and oil duct, be provided with a plurality of Y shape strutting pieces 12 between described outer sleeve 10 and the external insulation layer 6, two arms of Y shape strutting piece 12 connect respectively outer sleeve 10 and external insulation layer 6.
In order to guarantee the sealing of shielded-plate tube 1 tail end, described shielded-plate tube 1 tail end is provided with the fixed mount 13 for fixing super extreme high voltage converter transformer valve-side outgoing line device for the bulb shape of sealing, its outer insulation afterbody.
On the basis of aforementioned schemes, dispersion production and unified assembling for convenient super extreme high voltage converter transformer valve-side outgoing line device, the external insulation layer 6 of shielded-plate tube 1 outside is subsection setup, sealing in order to ensure connecting portion, avoid the leakage of insulating oil, ensure the shielding insulation effect, the inclined-plane 14 of the insulating barrier of connecting portion for mutually agreeing with, the two bonds together by insulation glue, in the connecting portion outer setting sealing ring 15 is arranged.
Described shielded-plate tube 1 sidewall is a determining deviation and is provided with several inlet wires shielding 3, usually needs two inlet wires shieldings 3, and one of them inlet wire shielding 3 is arranged at the tail end of shielded-plate tube 1.
Dispersion production and unified assembling for the ease of each inlet wire shielding 3, be provided with interfacing part in the outer layer insulation of shielded-plate tube 1 part between the docking site adjacent inlet wire shielding 3, this interfacing part one end is sleeve 16, sleeve 16 inwalls are provided with inwardly protruded twice bulge loop, form stopper slot 17 between the bulge loop, the interfacing part other end is the protruding guide vane end stop 18 corresponding with stopper slot 17, is provided be used to the breach that passes protruding guide vane end stop 18 on the bulge loop in the outside.
Claims (10)
1. super extreme high voltage converter transformer valve-side outgoing line device, it is characterized in that: it comprises shielded-plate tube, shielding ball and inlet wire shielding head, inlet wire shielding head is connected on the sidewall of shielded-plate tube by threeway, shielded-plate tube, shielding ball and inlet wire shielding head are metal material, shielded-plate tube is fixedly connected with the lower end of shielding ball, the outer wall of being close to shielded-plate tube, shielding ball and inlet wire shielding head arranges inner insulating layer, the outside layering of inner insulating layer is provided with the multilayer external insulation layer, and the oil duct stay is set between the adjacent external insulation layer.
2. super extreme high voltage converter transformer valve-side outgoing line device according to claim 1, it is characterized in that: described inlet wire shielding head is for L shaped, its upper end is column tube, the lower end is docked in the described threeway, an inlet wire shielding outer field external insulation layer is corresponding with the external insulation layer of shielded-plate tube, and inner oil duct connects mutually.
3. super extreme high voltage converter transformer valve-side outgoing line device according to claim 1, it is characterized in that: described shielding ball and shielded-plate tube are welded to connect, and the shielded-plate tube end is provided with the excessive face of taper with the position that the shielding ball is connected.
4. super extreme high voltage converter transformer valve-side outgoing line device according to claim 1, it is characterized in that: described shielding ball top is provided with the flanging that is wrapped up by inner insulating layer.
5. super extreme high voltage converter transformer valve-side outgoing line device according to claim 1, it is characterized in that: be provided with assembly parts on the external insulation layer in the described shielding ball outside, these assembly parts comprise outer sleeve and support tube, the support tube lower end is cylindricality, be fixed in the external insulation layer in the shielding ball outside, the support tube middle part is taper, and the upper end of support tube is cylindricality, is fixedly connected with the upper end of outer sleeve.
6. super extreme high voltage converter transformer valve-side outgoing line device according to claim 5, it is characterized in that: be provided with a plurality of Y shape strutting pieces between described outer sleeve and the external insulation layer, two arms of Y shape strutting piece connect respectively outer sleeve and external insulation layer.
7. super extreme high voltage converter transformer valve-side outgoing line device according to claim 1, it is characterized in that: the external insulation layer of described shielded-plate tube outside is subsection setup, the inclined-plane of the insulating barrier of connecting portion for mutually agreeing with, the two bonds together by insulation glue, in the connecting portion outer setting sealing ring is arranged.
8. super extreme high voltage converter transformer valve-side outgoing line device according to claim 1 is characterized in that: described shielded-plate tube sidewall is a determining deviation and is provided with several inlet wires shielding heads, and one of them inlet wire shielding head is arranged at the tail end of shielded-plate tube.
9. super extreme high voltage converter transformer valve-side outgoing line device according to claim 8, it is characterized in that: be provided with interfacing part in the outer layer insulation of the shielded-plate tube part between the adjacent inlet wire shielding head, this interfacing part one end is sleeve, sleeve lining is provided with inwardly protruded twice bulge loop, form stopper slot between the bulge loop, the interfacing part other end is the protruding guide vane end stop corresponding with stopper slot, is provided be used to the breach that passes protruding guide vane end stop on the bulge loop in the outside.
10. super extreme high voltage converter transformer valve-side outgoing line device according to claim 1, it is characterized in that: described shielded-plate tube tail end is provided with the fixed mount for fixing super extreme high voltage converter transformer valve-side outgoing line device for the bulb shape of sealing, its outer insulation afterbody.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104583984A CN102930962A (en) | 2012-11-15 | 2012-11-15 | Valve side wire outlet device of super-high voltage converter transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104583984A CN102930962A (en) | 2012-11-15 | 2012-11-15 | Valve side wire outlet device of super-high voltage converter transformer |
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| CN102930962A true CN102930962A (en) | 2013-02-13 |
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| CN2012104583984A Pending CN102930962A (en) | 2012-11-15 | 2012-11-15 | Valve side wire outlet device of super-high voltage converter transformer |
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Cited By (5)
| 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 |
| EP3319097A4 (en) * | 2015-07-01 | 2018-07-25 | Shandong Electrical Engineering & Equipment Group Co. Ltd. | High voltage outlet structure of ultra-high voltage shunt reactor |
| CN110911132A (en) * | 2018-09-18 | 2020-03-24 | 特变电工沈阳变压器集团有限公司 | Valve side wire outlet device of extra-high voltage converter transformer |
| CN112259345A (en) * | 2020-10-10 | 2021-01-22 | 山东电力设备有限公司 | 750kV converter transformer outlet tube structure and assembling method |
| CN113053638A (en) * | 2021-03-26 | 2021-06-29 | 国家电网有限公司直流建设分公司 | Converter transformer valve side outlet device |
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| JPS5717118A (en) * | 1980-07-07 | 1982-01-28 | Daihen Corp | Stationary electric induction apparatus |
| CN2750432Y (en) * | 2004-08-03 | 2006-01-04 | 特变电工沈阳变压器集团有限公司 | Insulation structure of transformer lead |
| CN101640114A (en) * | 2009-07-06 | 2010-02-03 | 保定天威保变电气股份有限公司 | Extra-high voltage transformer lead shielding device |
| CN101656143A (en) * | 2008-08-22 | 2010-02-24 | 特变电工沈阳变压器集团有限公司 | High-voltage terminal device for transformer |
| CN201562549U (en) * | 2009-11-03 | 2010-08-25 | 保定天威集团有限公司 | Extra-high tension converter transformer three-column parallel-connection network side line-outgoing device |
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| CN202905402U (en) * | 2012-11-15 | 2013-04-24 | 常州市英中电气有限公司 | Outgoing line device on valve side of extra-high voltage converter transformer |
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Patent Citations (7)
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| JPS5717118A (en) * | 1980-07-07 | 1982-01-28 | Daihen Corp | Stationary electric induction apparatus |
| CN2750432Y (en) * | 2004-08-03 | 2006-01-04 | 特变电工沈阳变压器集团有限公司 | Insulation structure of transformer lead |
| CN101656143A (en) * | 2008-08-22 | 2010-02-24 | 特变电工沈阳变压器集团有限公司 | High-voltage terminal device for transformer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3319097A4 (en) * | 2015-07-01 | 2018-07-25 | Shandong Electrical Engineering & Equipment Group Co. Ltd. | High voltage outlet structure of ultra-high voltage shunt reactor |
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| 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 |
| CN110911132A (en) * | 2018-09-18 | 2020-03-24 | 特变电工沈阳变压器集团有限公司 | Valve side wire outlet device of extra-high voltage converter transformer |
| CN112259345A (en) * | 2020-10-10 | 2021-01-22 | 山东电力设备有限公司 | 750kV converter transformer outlet tube structure and assembling method |
| CN113053638A (en) * | 2021-03-26 | 2021-06-29 | 国家电网有限公司直流建设分公司 | Converter transformer valve side outlet device |
| CN113053638B (en) * | 2021-03-26 | 2024-03-12 | 国家电网有限公司直流建设分公司 | Valve side outlet device of converter transformer |
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Application publication date: 20130213 |