CN1484255A - Combined insulator chain for high voltage transmission line - Google Patents
Combined insulator chain for high voltage transmission line Download PDFInfo
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- CN1484255A CN1484255A CNA031344518A CN03134451A CN1484255A CN 1484255 A CN1484255 A CN 1484255A CN A031344518 A CNA031344518 A CN A031344518A CN 03134451 A CN03134451 A CN 03134451A CN 1484255 A CN1484255 A CN 1484255A
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- insulator
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- transmission line
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Abstract
This invention discloses a multi-insulator chain for high voltage overhead transmitting line formed by seriating organic complex insulators, insulators at the high voltage side and the earth side matched wit suitable balanced shield rings making up of a single or double insulator chain. The insulator unit at the high voltage is seriated between the organic insulator and a high voltage line, the earth side insulator is seriated between the organic insulator and the tower bar cross arm, one or two shield rings at the high voltage is set near the connection of the organic and high voltage insulators and the line side and balanced shield rings at the earth are set at the earth and close to the connection between insulation of the organic and the earth side.
Description
One, affiliated technical field
The invention belongs to the high pressure overhead power line insulator technology, relate to high-voltage transmission line insulator, all press shading ring, particularly a kind of by multiple line insulator and a plurality of ultra-high-tension power transmission line combined insulator string of all pressing the special structure form that shading ring combines.
Two, background technology
Line insulator is the main insulation support of high voltage overhead transmission pressure.Raising along with electric pressure, the corresponding increase of the quantity of line insulator, cause that by insulator breakdown fault possibility significantly increases, its failure rate the line is busy more than 2/3 of road total failare rate, so the operational reliability of insulator plays a part very important to the fail safe of whole power transmission and transformation system operation.
The voltage levels electric transmission line isolator, owing to be subjected to the influence of tower bar, arrangement of conductors electric capacity, make the spread voltage of each insulator under alternating voltage in the insulator string inhomogeneous, especially near several insulators or several full skirt of lead, voltage that it is born or field intensity are higher 2～3 times than other insulator or middle part full skirt.Therefore, usually can produce corona discharge and galvanic corrosion and decrease, cause insulator arc-over, quicken the insulator deterioration, even cause insulator breakdown to destroy.Therefore, the voltage that improves insulator string distributes, and guarantees the safe and reliable operation of high pressure overhead power line, avoid because of large-area power-cuts significant to the massive losses that national economy causes.
In ultra-high-tension power transmission line, in order to reduce the inhomogeneities that insulator string voltage distributes, the general employing installed the method for all pressing shading ring additional in lead side and ground connection side, improves the spread voltage on the insulator full skirt of both sides.But along with the raising of electric pressure, all pressures effect of this method is limited, still can not reach the purpose of insulator safe and reliable operation.
Three, summary of the invention
Defective or deficiency according to above-mentioned prior art existence, the applicant has carried out simulation calculation to unit for electrical property parameters such as high-voltage transmission line insulator spread voltage, electric fields, discovery to the insulator of unlike material organize string optimize, and suitably configuration several all press shading ring, can realize the purpose of spread voltage homogenizing to greatest extent, effectively suppress the corona discharge and the galvanic corrosion of organic composite insulator and decrease.
The objective of the invention is to, a kind of high-voltage transmission line insulator group string that can effectively improve high-tension line insulator safe and reliable operation is provided, it can form several versions.
The technical solution that realizes above-mentioned purpose is: this ultra-high-tension power transmission line combined insulator string, be characterized in: by organic composite insulator, insulator unit, high-pressure side and ground connection side insulator unit serial connection, the configuration high-pressure side all presses shading ring and ground connection side all to press shading ring to form insulator-all press shading ring combining structure.
High-pressure side insulator unit strings is connected between organic composite insulator and the high-voltage conducting wires, and ground connection side insulator unit strings is connected between organic composite insulator and the tower bar cross-arm; The high-pressure side all presses shading ring to place near and the lead side in junction of organic composite insulator and insulator unit, high-pressure side; The ground connection side all presses shading ring to place near and the ground connection side in junction of organic composite insulator and ground connection side insulator unit.
Some other characteristics of the present invention are: described organic composite insulator is the compounded rod insulator insulators of organic material such as silicon rubber, epoxy; Insulator unit, high-pressure side is cap and pin insulator string or rod insulator porcelain insulator string; Ground connection side insulator unit is cap and pin insulator string or rod insulator porcelain insulator string; The high-pressure side all presses shading ring and ground connection side all to press shading ring to comprise annular, the shape of a saddle, dish type etc.
Described high-pressure side all presses shading ring to place near the junction of organic composite insulator and insulator unit, high-pressure side and the lead side, configurable 1 or 2; The ground connection side all presses shading ring to place near the junction of organic composite insulator and ground connection side insulator unit and the ground connection side, configurable 1 or 2.
When insulator unit, described high-pressure side adopts cap and pin insulator, can form by 1～10 serial connection.
When described ground connection side insulator unit adopts cap and pin insulator, can form by 1～10 serial connection; Also can not be connected in series described ground connection side insulator unit when special.
When insulator unit, described high-pressure side adopts the rod insulator porcelain insulator, can be formed by 1～3 serial connection, total length is 0.2～1.5m.
When described ground connection side insulator unit adopts the rod insulator porcelain insulator, can be formed by 1～3 serial connection, total length is 0.2～1.5m; Also can not be connected in series described ground connection side insulator unit when special.
Described high-pressure side all presses shading ring and ground connection side all to press shading ring can dispose 1 or 2 respectively.
The specified electromechanical failure load of described organic composite insulator, insulator unit, high-pressure side and ground connection side insulator unit is 45～530kN.
Ultra-high-tension power transmission line of the present invention can reach the homogenizing of insulator string spread voltage to greatest extent with the combined insulator string, can effectively suppress the corona discharge and the galvanic corrosion of organic composite insulator and decrease.
Four, description of drawings
Fig. 1 is the first kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type list insulator string;
Fig. 2 is the second kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type list insulator string;
Fig. 3 is the ultra-high-tension power transmission line that constitutes of the present invention the third structure chart with composite type list insulator string;
Fig. 4 is the four kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type list insulator string;
Fig. 5 is the five kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type list insulator string;
Fig. 6 is the six kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type list insulator string.
Fig. 7 is the first kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type double insulator string;
Fig. 8 is the second kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type double insulator string;
Fig. 9 is the ultra-high-tension power transmission line that constitutes of the present invention the third structure chart with composite type double insulator string;
Figure 10 is the four kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type double insulator string;
Figure 11 is the five kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type double insulator string;
Figure 12 is the six kind structure chart of the ultra-high-tension power transmission line that constitutes of the present invention with composite type double insulator string.
More than figure all is embodiments of the invention.
Five, embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Fig. 1～Figure 12 is embodiments of the invention, according to technical scheme of the present invention, ultra-high-tension power transmission line with the common frame mode of combined insulator string is: after organic composite insulator 1, insulator unit, high-pressure side 2 and ground connection side insulator unit 3 serial connections, dispose suitable high-pressure side and all press shading ring 4 and ground connection side all to press shading ring 5 to form.
Version of the present invention is characterized as: based on rod insulator organic composite insulator 1, be connected in series the insulator unit between one end and the high-voltage conducting wires, claim insulator unit, high-pressure side 2; Be connected in series the insulator unit between its other end and the tower bar cross-arm, claim ground connection side insulator unit 3; Near the junction of organic composite insulator 1 and insulator unit, high-pressure side 2, reach the lead side, dispose 1 or 2 and all press shading ring, claim the high-pressure side all to press shading ring 4; Near the junction of organic composite insulator 1 and ground connection side insulator unit 3, reach the ground connection side, dispose 1 or 2 and all press shading ring, claim the ground connection side all to press shading ring 5.
Organic composite insulator 1 is the compounded rod insulator insulators of organic material such as silicon rubber, epoxy.
Insulator unit, high-pressure side 2 is cap and pin insulator string or rod insulator porcelain insulator string; Ground connection side insulator unit 3 is cap and pin insulator string or rod insulator porcelain insulator string.The cap and pin insulator string is formed by 1～10 serial connection; Rod insulator porcelain insulator string is formed by 1～3 serial connection, and total length is 0.2～1.5m.
The specified electromechanical failure load of organic composite insulator 1, insulator unit, high-pressure side 2 and ground connection side insulator unit 3 is 45～530kN.
Organic composite insulator 1 is serially connected between insulator unit, high-pressure side 2 and the ground connection side insulator unit 3.
Insulator unit, high-pressure side 2 is serially connected between organic composite insulator 1 and the high-voltage conducting wires 6; Ground connection side insulator unit 3 is serially connected between organic composite insulator 1 and the tower bar cross-arm 7.Said structure can constitute double insulator string or single insulator string according to actual conditions.
All press shading ring to comprise annular, the shape of a saddle, dish type etc.The high-pressure side all presses shading ring 4 to place near the junction of organic composite insulator and insulator unit, high-pressure side and the lead side, configurable 1 or 2; The ground connection side all presses shading ring 5 to place near the junction of organic composite insulator and ground connection side insulator unit and the ground connection side, configurable 1 or 2.
That high-voltage conducting wires 6 comprises is single, binary fission, quadripartion, six divisions, eight divisions and very split lead.Shaft tower cross-arm 7 provides support for insulator string.
The present invention is through simulation calculation and installation test, all presses satisfactory for resultly, reached insulator string spread voltage homogenizing to greatest extent, effectively suppressed the corona discharge and the galvanic corrosion of organic composite insulator and decreased.
Claims (9)
1. ultra-high-tension power transmission line combined insulator string, it is characterized in that: by organic composite insulator [1], insulator unit, high-pressure side [2] and ground connection side insulator unit [3] serial connection, the configuration high-pressure side all presses shading ring [4] and ground connection side all to press shading ring [5] composition insulator-all press shading ring combining structure; Insulator unit, high-pressure side [2] is serially connected between organic composite insulator [1] and the high-voltage conducting wires [6], and ground connection side insulator unit [3] is serially connected between organic composite insulator [1] and the tower bar cross-arm [7]; The high-pressure side all presses shading ring [4] to place near the lead side that reaches in the organic composite insulator [1] and the junction of insulator unit, high-pressure side [2]; The ground connection side all presses shading ring [5] to place near the ground connection side that reaches in the organic composite insulator [1] and the junction of ground connection side insulator unit [3].
2. ultra-high-tension power transmission line combined insulator string as claimed in claim 1 is characterized in that described organic composite insulator [1] is the compounded rod insulator insulator strings of organic material such as silicon rubber, epoxy; Insulator unit, high-pressure side [2] is cap and pin insulator string or rod insulator porcelain insulator string; Ground connection side insulator unit [3] is cap and pin insulator string or rod insulator porcelain insulator; The high-pressure side all presses shading ring [4] and ground connection side all to press shading ring [5] to comprise annular, the shape of a saddle, dish type etc.
3. ultra-high-tension power transmission line combined insulator string as claimed in claim 1 or 2, it is characterized in that, described high-pressure side all presses shading ring [4] to place near the junction of organic composite insulator [1] and insulator unit, high-pressure side [2] and the lead side, configurable 1 or 2; The ground connection side all presses shading ring [5] to place near the junction of organic composite insulator [1] and ground connection side insulator unit [3] and the ground connection side, configurable 1 or 2.
4. ultra-high-tension power transmission line combined insulator string as claimed in claim 2 is characterized in that, when insulator unit, described high-pressure side [2] adopts cap and pin insulator, can be formed by 1～10 serial connection.
5. ultra-high-tension power transmission line combined insulator string as claimed in claim 2 is characterized in that, when described ground connection side insulator unit [3] adopts cap and pin insulator, can be formed by 1～10 serial connection; Also can not be connected in series ground connection side insulator unit [3] when special.
6. ultra-high-tension power transmission line combined insulator string as claimed in claim 2 is characterized in that, when insulator unit, described high-pressure side [2] adopts the rod insulator porcelain insulator, can be formed by 1～3 serial connection, and total length is 0.2～1.5m.
7. ultra-high-tension power transmission line combined insulator string as claimed in claim 2 is characterized in that, when described ground connection side insulator unit [3] adopts the rod insulator porcelain insulator, can be formed by 1～3 serial connection, and total length is 0.2～1.5m; Also can not be connected in series ground connection side insulator unit [3] when special.
8. ultra-high-tension power transmission line combined insulator string as claimed in claim 1 is characterized in that, described high-pressure side all presses shading ring [4] and ground connection side all to press shading ring [5] can dispose 1 or 2 respectively.
9. ultra-high-tension power transmission line combined insulator string as claimed in claim 1 is characterized in that, the specified electromechanical failure load of described organic composite insulator [1], insulator unit, high-pressure side [2] and ground connection side insulator unit [3] is 45～530kN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03134451 CN1225747C (en) | 2003-07-31 | 2003-07-31 | Combined insulator chain for high voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03134451 CN1225747C (en) | 2003-07-31 | 2003-07-31 | Combined insulator chain for high voltage transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1484255A true CN1484255A (en) | 2004-03-24 |
| CN1225747C CN1225747C (en) | 2005-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03134451 Expired - Fee Related CN1225747C (en) | 2003-07-31 | 2003-07-31 | Combined insulator chain for high voltage transmission line |
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| Country | Link |
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| CN (1) | CN1225747C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202429B (en) * | 2007-11-22 | 2011-06-15 | 福建省泉州电业局 | Support with adjustable inclination angle, column support composite insulator component and method of mounting |
| CN102682934A (en) * | 2011-12-01 | 2012-09-19 | 湖北鑫德赛绝缘技术有限公司 | Insulator with combined type barrier |
| CN104992793A (en) * | 2015-07-08 | 2015-10-21 | 清华大学深圳研究生院 | Anti-icing insulator device and power transmission line |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386827C (en) * | 2006-04-30 | 2008-05-07 | 西安交通大学 | Composite insulator big and small strapped configuration structure for super/extra high voltage transmission line |
-
2003
- 2003-07-31 CN CN 03134451 patent/CN1225747C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202429B (en) * | 2007-11-22 | 2011-06-15 | 福建省泉州电业局 | Support with adjustable inclination angle, column support composite insulator component and method of mounting |
| CN102682934A (en) * | 2011-12-01 | 2012-09-19 | 湖北鑫德赛绝缘技术有限公司 | Insulator with combined type barrier |
| CN104992793A (en) * | 2015-07-08 | 2015-10-21 | 清华大学深圳研究生院 | Anti-icing insulator device and power transmission line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1225747C (en) | 2005-11-02 |
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Granted publication date: 20051102 Termination date: 20100731 |