CN107086439B - Special hardware structure for network side inlet of converter transformer - Google Patents
Special hardware structure for network side inlet of converter transformer Download PDFInfo
- Publication number
- CN107086439B CN107086439B CN201710423333.9A CN201710423333A CN107086439B CN 107086439 B CN107086439 B CN 107086439B CN 201710423333 A CN201710423333 A CN 201710423333A CN 107086439 B CN107086439 B CN 107086439B
- Authority
- CN
- China
- Prior art keywords
- converter transformer
- pipe bus
- bus section
- network side
- fitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 239000012212 insulator Substances 0.000 claims abstract description 18
- 239000012211 strain insulator Substances 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000032683 aging Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
Abstract
The invention discloses a special hardware fitting structure for a network side line of a converter transformer, which is positioned on a firewall (12), wherein two ends of an upper layer overline (8) are fixed with a power transmission tower through a strain insulator string (11), a down-lead (7) is arranged at a transition section of the upper layer overline (8) and the strain insulator string (11), the other end of the down-lead (7) is connected with a first pipe bus section (9) arranged below, two ends of the first pipe bus section (9) are lapped on a post insulator (5) and a lightning arrester connecting wire terminal (6), a second pipe bus section (10) is arranged on the same horizontal line of the first pipe bus section (9), and two ends of the second pipe bus section (10) are lapped on the post insulator (5) and a radio interference filter capacitor (4), so that the defects of long-term aging of a transformer sleeve in the prior art, equipment, shortened service life, and the reliability of the converter transformer has the advantages of improving the reliability and the extra-high voltage stability of a station are overcome.
Description
Technical Field
The invention relates to the technical field of direct current transmission engineering, in particular to a special hardware structure for a network side line of a converter transformer.
Background
The transformer is a core component of the operation of the substation and the converter station. In a 1000kV alternating-current ultrahigh-voltage transformer substation, a four-split large-diameter wire is adopted for the incoming wire of the transformer bushing, the diameter of the wire is large, the rigidity is high, and a large load is generated on the terminal of the transformer bushing. In an extra-high voltage converter station of an alternating-current layered access 1000/500kV power system, a mode of connecting a converter transformer to a 1000kV alternating-current network side is similar to an alternating-current extra-high voltage transformer substation, a transformer sleeve bears static load for a long time in engineering operation, equipment aging is aggravated, the service life is shortened, and even equipment terminals are broken or the top of the sleeve is deformed, so that serious accidents such as gas leakage, internal discharge of the sleeve and the like are caused.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a special hardware structure for the network side line of the converter transformer.
The invention is implemented by the following technical scheme: the special hardware fitting structure for the network side line of the converter transformer is positioned on a fireproof wall and comprises a converter transformer sleeve hardware fitting, a pipe bus section hardware fitting, a converter transformer network side sleeve wiring terminal, a radio interference filter capacitor, a post insulator, a lightning arrester wiring terminal, a down-lead, an upper layer overline, a first pipe bus section, a second pipe bus section and a strain insulator string;
the two ends of the upper layer overline are fixed with the power transmission tower through the tension insulator string, the lower lead is arranged at the transition section of the upper layer overline and the tension insulator string, the other end of the lower lead is connected with a first pipe bus section arranged below, two ends of the first pipe bus section are lapped on a post insulator and a lightning arrester connecting wire terminal, a second pipe bus section is arranged on the same horizontal line of the first pipe bus section, two ends of the second pipe bus section are lapped on the post insulator and a radio interference filter capacitor, and the radio interference filter capacitor is connected with a converter transformer network side sleeve wiring terminal arranged on one side through a converter transformer sleeve fitting.
In the technical scheme, the method comprises the following steps: the first pipe bus section is connected with the second pipe bus section through a movable pipe bus section fitting.
In the technical scheme, the method comprises the following steps: the inside of the pipe bus section fitting is made of a plurality of strands of small-diameter annealed copper wires or soft aluminum wires.
In the technical scheme, the method comprises the following steps: the two ends of the sleeve fitting of the converter transformer are made of a plurality of strands of small-diameter annealed copper wires or soft aluminum wires and are respectively and movably connected with the sleeve wiring terminal on the network side of the converter transformer and the radio interference filter capacitor; and a pre-bent pipe female structure is adopted in the middle of the sleeve fitting of the converter transformer.
In the technical scheme, the method comprises the following steps: the converter transformer bushing fitting is connected with the radio interference filter capacitor in a hinged mode.
In the technical scheme, the method comprises the following steps: the post insulator is positioned between the radio interference filter capacitor and the lightning arrester wiring terminal.
The invention has the following advantages: the invention protects the sleeve wiring terminal at the net side of the converter transformer, avoids the accidents such as deformation, fracture and the like caused by long-term bearing of large mechanical load of the sleeve net side wiring terminal, and further improves the operation reliability and stability of the extra-high voltage converter station.
Drawings
Figure 1 is an isometric view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a side view of the invention.
Fig. 4 is a top view of the invention.
In the figure: the transformer bushing fitting 1, the pipe bus section fitting 2, the transformer network side bushing wiring terminal 3, the radio interference filter capacitor 4, the post insulator 5, the lightning arrester wiring terminal 6, the down lead 7, the upper layer overline 8, the first pipe bus section 9, the second pipe bus section 10 and the strain insulator string 11.
Detailed Description
The following detailed description of the invention, taken in conjunction with the accompanying drawings, is not intended to limit the invention, but is made merely by way of example; while the advantages of the invention will become apparent and readily appreciated by reference to the following description.
Referring to fig. 1-4: the special hardware fitting structure for the side line of the converter transformer network is positioned on a firewall 12 and comprises a converter transformer sleeve hardware fitting 1, a pipe bus section hardware fitting 2, a converter transformer network side sleeve wiring terminal 3, a radio interference filter capacitor 4, a post insulator 5, a lightning arrester wiring terminal 6, a down lead 7, an upper layer overline 8, a first pipe bus section 9, a second pipe bus section 10 and a tension insulator string 11;
the two ends of the upper layer overline 8 are fixed with the power transmission tower through the strain insulator string 11, and the down-lead 7 is arranged at the transition section of the upper layer overline 8 and the strain insulator string 11, and the down-lead 7 guides current to the first pipe bus section 9.
The other end of the down wire 7 is connected with a first pipe bus section 9 arranged below, two ends of the first pipe bus section 9 are lapped on a post insulator 5 and a lightning arrester connecting wire terminal 6, a second pipe bus section 10 is arranged on the same horizontal line of the first pipe bus section 9, two ends of the second pipe bus section 10 are lapped on the post insulator 5 and the radio interference filter capacitor 4, and the radio interference filter capacitor 4 is connected with a converter transformer net side sleeve connecting wire terminal 3 arranged on one side through the converter transformer sleeve fitting 1.
The first pipe bus section 9 is connected with the second pipe bus section 10 through the movable pipe bus section fitting 2.
The inside of the pipe bus section fitting 2 is made of a plurality of strands of small-diameter annealed copper wires or soft aluminum wires to form reliable electrical connection.
The two ends of the converter transformer bushing fitting 1 are made of a plurality of strands of small-diameter annealed copper wires or soft aluminum wires to form reliable electrical connection.
The converter transformer bushing fitting 1 is respectively and movably connected with the converter transformer network side bushing wiring terminal 3 and the radio interference filter capacitor 4; the middle part of the converter transformer bushing fitting 1 adopts a pre-bent pipe female structure, so that the volume of the fitting is effectively reduced, and the adaptability to equalizing rings of equipment at two ends of the fitting is high.
The converter transformer bushing fitting 1 is connected with the radio interference filter capacitor 4 in a hinged mode.
When the upper-layer overline 8 is influenced by external factors such as strong wind, ice coating and the like to form larger displacement, the converter transformer network side sleeve wiring terminal 3 does not form relative displacement and does not bear mechanical load caused by the relative displacement. Under the earthquake working condition, all the devices are in non-fixed connection, so that earthquake stress can be effectively digested, and the terminal connection of the device is protected.
The post insulator 5 is located between the radio interference filter capacitor 4 and the lightning arrester terminal 6.
The parts not described in detail above are all prior art.
Claims (6)
1. Special fitting structure of converting transformer net side line all is located on fire wall (12), its characterized in that: the high-voltage transformer comprises a converter transformer sleeve fitting (1), a pipe bus section fitting (2), a converter transformer network side sleeve wiring terminal (3), a radio interference filter capacitor (4), a post insulator (5), a lightning arrester wiring terminal (6), a down-lead wire (7), an upper layer overline (8), a first pipe bus section (9), a second pipe bus section (10) and a strain insulator string (11);
the two ends of the upper layer overline (8) are fixed with the power transmission tower through the strain insulator string (11), the upper layer overline (8) and the transition section of the strain insulator string (11) are provided with down-lead wires (7), the other end of the down-lead wires (7) is connected with a first tubular busbar section (9) arranged below, two ends of the first tubular busbar section (9) are lapped on a post insulator (5) and a lightning arrester wiring terminal (6), a second tubular busbar section (10) is arranged on the same horizontal line of the first tubular busbar section (9), two ends of the second tubular busbar section (10) are lapped on the post insulator (5) and a radio interference filter capacitor (4), and the radio interference filter capacitor (4) is connected with a converter transformer network side sleeve wiring terminal (3) arranged on one side through a converter transformer sleeve (1).
2. The special hardware structure for the network side inlet of the converter transformer according to claim 1, wherein: the first pipe bus section (9) is connected with the second pipe bus section (10) through a movable pipe bus section fitting (2).
3. The special hardware structure for the network side inlet of the converter transformer according to claim 1 or 2, wherein the special hardware structure is characterized in that: the inside of the pipe bus section fitting (2) is made of a plurality of strands of annealed copper wires or soft aluminum wires.
4. A converter transformer network side inlet special hardware structure according to claim 3, characterized in that: the two ends of the converter transformer bushing fitting (1) are made of a plurality of strands of annealed copper wires or soft aluminum wires and are respectively and movably connected with the converter transformer network side bushing wiring terminal (3) and the radio interference filter capacitor (4); the middle part of the converter transformer bushing fitting (1) adopts a pre-bent pipe female structure.
5. The special hardware structure for the network side inlet of the converter transformer according to claim 4, wherein: the converter transformer bushing fitting (1) is connected with the radio interference filter capacitor (4) in a hinged mode.
6. The special hardware structure for the network side inlet of the converter transformer according to claim 5, wherein: the post insulator (5) is positioned between the radio interference filter capacitor (4) and the lightning arrester wiring terminal (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423333.9A CN107086439B (en) | 2017-06-07 | 2017-06-07 | Special hardware structure for network side inlet of converter transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423333.9A CN107086439B (en) | 2017-06-07 | 2017-06-07 | Special hardware structure for network side inlet of converter transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107086439A CN107086439A (en) | 2017-08-22 |
| CN107086439B true CN107086439B (en) | 2024-04-12 |
Family
ID=59607914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710423333.9A Active CN107086439B (en) | 2017-06-07 | 2017-06-07 | Special hardware structure for network side inlet of converter transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107086439B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667060B (en) * | 2018-04-18 | 2021-06-08 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for improving operation reliability of converter valve tower in converter station |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001112125A (en) * | 1999-10-04 | 2001-04-20 | Toshiba Corp | Round substation |
| CN2562472Y (en) * | 2002-03-28 | 2003-07-23 | 罗志昭 | Shielded insulating sleeve style overhead electric cable line |
| CN201813068U (en) * | 2010-06-22 | 2011-04-27 | 湖北省电力勘测设计院 | Distribution structure of support tubular bus leading and incoming equipment of ultra-high voltage main transformer incoming lines |
| CN202206034U (en) * | 2011-08-23 | 2012-04-25 | 中国电力工程顾问集团西南电力设计院 | Converter transformer lead structure for ultra-high voltage converter station |
| CN103066502A (en) * | 2012-12-28 | 2013-04-24 | 浙江省电力设计院 | Geographic information system (GIS) power distribution device of extra-high voltage transformer substation |
| CN206922201U (en) * | 2017-06-07 | 2018-01-23 | 国家电网公司 | The special hardware fitting structure of converter power transformer net side inlet wire |
-
2017
- 2017-06-07 CN CN201710423333.9A patent/CN107086439B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001112125A (en) * | 1999-10-04 | 2001-04-20 | Toshiba Corp | Round substation |
| CN2562472Y (en) * | 2002-03-28 | 2003-07-23 | 罗志昭 | Shielded insulating sleeve style overhead electric cable line |
| CN201813068U (en) * | 2010-06-22 | 2011-04-27 | 湖北省电力勘测设计院 | Distribution structure of support tubular bus leading and incoming equipment of ultra-high voltage main transformer incoming lines |
| CN202206034U (en) * | 2011-08-23 | 2012-04-25 | 中国电力工程顾问集团西南电力设计院 | Converter transformer lead structure for ultra-high voltage converter station |
| CN103066502A (en) * | 2012-12-28 | 2013-04-24 | 浙江省电力设计院 | Geographic information system (GIS) power distribution device of extra-high voltage transformer substation |
| CN206922201U (en) * | 2017-06-07 | 2018-01-23 | 国家电网公司 | The special hardware fitting structure of converter power transformer net side inlet wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107086439A (en) | 2017-08-22 |
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