CN213637525U - Star-delta wiring plane arrangement structure of single-phase converter transformer group - Google Patents
Star-delta wiring plane arrangement structure of single-phase converter transformer group Download PDFInfo
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- CN213637525U CN213637525U CN202022861523.9U CN202022861523U CN213637525U CN 213637525 U CN213637525 U CN 213637525U CN 202022861523 U CN202022861523 U CN 202022861523U CN 213637525 U CN213637525 U CN 213637525U
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- converter transformer
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- phase converter
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- voltage bushing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
Abstract
The utility model discloses a star-delta connection plane arrangement structure of single-phase converter transformer group, include the converter transformer group that is arranged into a style of calligraphy by at least three single-phase converter transformers, and every the left and right sides of single-phase converter transformer all is provided with the firewall, be provided with the joint framework through net side support on the firewall in the two outsides of the converter transformer group left and right sides respectively, be provided with the three-phase that strides three single-phase converter transformers in proper order on the joint framework and converge the overline, be provided with the collecting main that crosses three single-phase converter transformers in proper order on the firewall is close to the direction of net side, and be provided with the arrester that corresponds with single-phase converter transformer variable on the firewall; and a first high-voltage bushing and a neutral point bushing are arranged on the network side of the single-phase converter transformer, the first high-voltage bushing is cantilevered by a flexible conductor and is led out from the combined framework, and the wire outlet end of the neutral point bushing is connected with a bus bar on the firewall so as to complete the network side star-type wiring of the converter transformer.
Description
Technical Field
The utility model relates to a power equipment arranges technical field, concretely relates to star triangle wiring plane arrangement structure of single-phase converter transformer group.
Background
The flexible direct current transmission is a novel direct current transmission technology based on a power electronic technology, and has remarkable advantages in the aspect of high-proportion renewable energy grid connection. For a high-capacity flexible direct-current transmission project, single-phase double-winding converter transformers are generally adopted, three single-phase converter transformers are changed into one group, 2 sleeve outgoing lines are arranged on the network side and the valve side of each converter transformer, and winding Y or delta connection needs to be completed outside the converter transformers through a bus bar. The conventional three-phase collector bus is in a structure of being tiled and arranged in a three-shape, and is large in occupied area and low in economical efficiency. Therefore, the arrangement structure of the star-delta connection of the converter transformer set needs to be optimized, and reference is provided for the design of the flexible direct current converter station in the future.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a star triangle wiring plane arrangement structure of single-phase converter transformer group that the overall arrangement is simple and space utilization is higher is provided.
The utility model aims at accomplishing through following technical scheme, a star triangle wiring plane arrangement structure of single-phase current transformation group, include to be a style of calligraphy by three at least single-phase current transformation and arrange the current transformation group that forms, and every the left and right sides of single-phase current transformation all is provided with prevents hot wall, be provided with joint framework through net side support on the fireproof wall in the two outsides about current transformation group respectively, joint framework is the mouth style of calligraphy and arranges that the length that becomes top and joint framework in the owner is greater than the length of preventing hot wall, be provided with the three-phase confluence overline that spanes three single-phase current transformation in proper order on the joint framework, prevent being provided with in the direction that hot wall is close to the net side and spaning three single-phase current transformation's collecting bus bar in proper order, just be provided with the arrester that corresponds with the single-phase current.
Furthermore, a first high-voltage bushing and a neutral point bushing are arranged on the network side of the single-phase converter transformer, the first high-voltage bushing is cantilevered by a flexible conductor and is led out through a combined framework, and the wire outlet end of the neutral point bushing is connected with a bus bar on a firewall so as to complete the star-shaped wiring of the network side of the converter transformer.
Further, a second high voltage bushing and a third high voltage bushing are arranged on the valve side of the single-phase converter transformer, and the second high voltage bushing and the third high voltage bushing are respectively bridged into different phases of the three-phase bus jumper through flexible conductors, so that triangular wiring on the valve side of the converter transformer set is completed.
Furthermore, the bottom of the flexible conductor which is connected with the second high-voltage bushing and the third high-voltage bushing farthest from the three-phase bus-bar jumper is provided with a post insulator for supporting the flexible conductor.
The utility model has the advantages of: single-phase converter transformer group's star-delta connection's planar arrangement structure space utilization is high, can effectively reduce the regional area and the engineering cost of converter transformer, provide the reference for gentle direct current conversion station's optimal design from now on.
Drawings
Fig. 1 is a plan view of a converter transformer star delta connection according to the present invention;
fig. 2 is a cross-sectional view of the current conversion transformer star-delta connection of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "lateral", "vertical", and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, the star-delta connection plane layout structure of a single-phase converter transformer set of the present invention comprises a converter transformer set formed by at least three single-phase converter transformers 1 arranged in a straight line, and the left and right sides of each single-phase converter transformer 1 are provided with fire walls 2, the fire walls 2 at the left and right outer sides of the converter transformer group 1 are respectively provided with a combined framework 4 through a net side bracket 3, the united framework 4 is arranged above the main transformer in a square shape, the length of the united framework 4 is larger than that of the firewall 2, the combined framework 4 is provided with a three-phase confluence overline 5 which sequentially crosses three single-phase converter transformers 1, the direction that prevents hot wall 2 and be close to the net side is provided with in proper order and spanes three single-phase converter transformer 1's the female 6 of collecting pipe, just prevent hot wall 2 is last to be provided with the arrester 7 that corresponds with single-phase converter transformer 1 quantity.
Referring to fig. 2, a first high-voltage bushing 8 and a neutral point bushing 9 are arranged on a network side of the single-phase converter transformer 1, the first high-voltage bushing 8 is cantilevered by a flexible conductor and is led out from the combined framework 4, and an outlet end of the neutral point bushing 9 is connected with a bus bar 6 on the firewall 2, so that star-type wiring of the network side of the converter transformer is completed.
Referring to fig. 2, a second high voltage bushing 10 and a third high voltage bushing 11 are disposed on a valve side of the single-phase converter transformer 1, the second high voltage bushing 10 and the third high voltage bushing 11 are respectively bridged into different phases of the three-phase bus bar jumper 5 through flexible conductors, so that triangular wiring on the valve side of the converter transformer group is completed, and a post insulator 12 for supporting the flexible conductors is disposed at bottoms of the flexible conductors, which are connected to the second high voltage bushing 10 and the third high voltage bushing 11 and the three-phase bus bar jumper 5 farthest from each other, respectively.
Single-phase converter transformer group's star-delta connection's planar arrangement structure space utilization is high, can effectively reduce the regional area and the engineering cost of converter transformer, provide the reference for gentle direct current conversion station's optimal design from now on.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (4)
1. A star-delta wiring plane arrangement structure of a single-phase converter transformer set is characterized in that: include to be a style of calligraphy by three at least single-phase current transformers and arrange the current transformer group that forms, and every the left and right sides of single-phase current transformer all is provided with prevents hot wall, be provided with joint framework on the fireproof wall in the two outsides about current transformer group through net side support respectively, joint framework is the mouth style of calligraphy and arranges that the length that becomes top and joint framework in the main transformer is greater than the length that prevents hot wall, be provided with the three-phase that spanes three single-phase current transformers in proper order on the joint framework and converge the overline, it is provided with the collecting main that spanes three single-phase current transformers in proper order to prevent hot wall to be close to on the direction of net side, just be provided with the arrester that corresponds with.
2. The star-delta connection planar arrangement of a single-phase converter transformer substation of claim 1, characterized in that: and a first high-voltage bushing and a neutral point bushing are arranged on the network side of the single-phase converter transformer, the first high-voltage bushing is cantilevered by a flexible conductor and is led out from the combined framework, and the wire outlet end of the neutral point bushing is connected with a bus bar on the firewall so as to complete the network side star-type wiring of the converter transformer.
3. The star-delta connection plane arrangement of a single-phase converter transformer substation according to claim 1 or 2, characterized in that: and a second high-voltage bushing and a third high-voltage bushing are arranged on the valve side of the single-phase converter transformer and are respectively bridged into different phases of the three-phase bus jumper through flexible conductors, so that the triangular wiring on the valve side of the converter transformer group is completed.
4. The star-delta connection plane arrangement of a single-phase converter transformer substation of claim 3, characterized in that: and the bottom of the flexible conductor which is connected with the second high-voltage bushing and the third high-voltage bushing farthest from the three-phase bus-bar cross wire is respectively provided with a post insulator for supporting the flexible conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022861523.9U CN213637525U (en) | 2020-12-03 | 2020-12-03 | Star-delta wiring plane arrangement structure of single-phase converter transformer group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022861523.9U CN213637525U (en) | 2020-12-03 | 2020-12-03 | Star-delta wiring plane arrangement structure of single-phase converter transformer group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213637525U true CN213637525U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022861523.9U Active CN213637525U (en) | 2020-12-03 | 2020-12-03 | Star-delta wiring plane arrangement structure of single-phase converter transformer group |
Country Status (1)
| Country | Link |
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| CN (1) | CN213637525U (en) |
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2020
- 2020-12-03 CN CN202022861523.9U patent/CN213637525U/en active Active
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