CN109494760A - A kind of route of 750kV series compensation power distribution equipment draws binding structure - Google Patents
A kind of route of 750kV series compensation power distribution equipment draws binding structure Download PDFInfo
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- CN109494760A CN109494760A CN201811646310.5A CN201811646310A CN109494760A CN 109494760 A CN109494760 A CN 109494760A CN 201811646310 A CN201811646310 A CN 201811646310A CN 109494760 A CN109494760 A CN 109494760A
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- Prior art keywords
- string
- gil
- downlead
- mends
- line
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- 238000009826 distribution Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 45
- 230000008901 benefit Effects 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/20—Arrangements for adjusting, eliminating or compensating reactive power in networks in long overhead lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention discloses a kind of routes of 750kV series compensation power distribution equipment to draw binding structure, the first downlead and the second downlead including being separately positioned on a base angle tower two sides；First downlead and the second downlead cover thread casing with the line side GIL string respectively and the line side GIL string is mended outlet casing tube and connect；String recruit electric installation be separately connected GIL string mend side string cover thread casing and GIL string mend side string mend outlet casing tube；String recruits the side that a base angle tower transmission line of electricity is arranged in electric installation；The string of enlarging recruits electric installation and separates with existing angle tower, and occupied area is small, reduces land expropriation cost, economizes the land resource；Not by charging operation line influence when construction, can substantially compress since enlarging string recruits the line outage time caused by electric installation；Wiring is succinct, takes full advantage of the angle tower on former working line, and string recruits extraction no setting is required the special outlet structure of electric installation, greatly reduces engineering steel amount, has saved the investment of engineering.
Description
Technical field
The invention belongs to substation, strings to mend station technical field, and in particular to a kind of line of 750kV series compensation power distribution equipment
Pass binding structure.
Background technique
Along with the fast development of Chinese national economy, the power industry in China is also rapidly developed, and domestic electrical rack is built
If quickly.Ended for the end of the year 2013,75, the Northwest's the whole network 750kV route, total length is about 12731.235km, 750kV power transformation
Institute 26, main transformer capacity 65000MVA.The first passage that current country's 750kV power grid is sent out in 750kV exchange super-pressure Xinjiang
AC power transmission and transformation project (Jinchang~Jiuquan~Anxi transmission line of electricity) and the second channel sent out of exchange super-pressure Xinjiang
AC power transmission and transformation project (Qaidam~Hai Xi~Sun-Moon Mountain transmission line of electricity) has 750kV series compensation with Denso in preconsolidation stress
It sets.
In recent years, the wind-powered electricity generation, photovoltaic of the Northwest are quickly grown, and online demand increasingly increases, so that existing 750kV is electric
The transmission capacity and level of stability of net receive serious test.To solve this problem, 750kV route in part need to install series connection
Power distribution equipment is compensated, according to system situation, series compensation power distribution equipment can build or be separately provided series compensation station jointly with substation；
The arrangement that traditional gate framework string of other domestic voltage class recruits electric installation is applied to enlarging series compensation with Denso
Not only land requisition index is big on the route set, but also requires the power off time of former working line long in enlarging, is not able to satisfy existing
The production run requirement of route.It is connect therefore, it is necessary to which the arrangement and route when extending to 750kV series compensation power distribution equipment are drawn
Design scheme carries out improvement design, and the construction, investment and operation that achievement recruits electric installation extension project to 750kV string will tools
It is of great importance.
Summary of the invention
To solve the above problems, the route that the present invention provides a kind of 750kV series compensation power distribution equipment draws binding structure, can have
Effect saves floor occupying area, construction investment, also solves the problem that and needs former operation line when recruiting electric installation scheme using traditional enlarging string
The problem of road has a power failure for a long time.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of route of 750kV series compensation power distribution equipment
Draw binding structure, the first downlead and the second downlead, the line side GIL string including being separately positioned on a base angle tower two sides cover
Thread casing, GIL string mend side string cover thread casing, GIL string mend side string mend outlet casing tube, the line side GIL string mend outlet casing tube and
String recruits electric installation,
First downlead covers thread casing with the line side GIL string and connect；Second downlead and the line side GIL string mend lead collar
Pipe connection；The line side GIL string covers thread casing connection GIL string benefit side string and covers thread casing, and GIL string is mended side string benefit outlet casing tube and connected
It connects the line side GIL string and mends outlet casing tube；String recruit electric installation be separately connected GIL string mend side string cover thread casing and GIL string mend side
String mends outlet casing tube；String recruits the side that a base angle tower transmission line of electricity is arranged in electric installation.
The line side GIL string cover thread casing and GIL string mend side string cover between thread casing by GIL string mend side go here and there cover line
Pipeline connection；
GIL string mends side string benefit access duct and is provided with more piece.
GIL string benefit side string mends outlet casing tube and the line side GIL goes here and there to mend and mends side string benefit outlet by GIL string between outlet casing tube
Pipeline connection.
GIL string mends side string benefit outlet pipeline and is provided with more piece.
The distance between first downlead and the second downlead are not less than 50 meters.
The lower end of first downlead and the second downlead is not less than 13m at a distance from ground.
Compared with prior art, the present invention at least has the advantages that the present invention is led from the route of angle tower two sides
Line makees downlead to GIL casing and traditional gate framework arrangement respectively and compares and substantially compression strings can recruit electric installation area
Domain occupied area reduces land expropriation cost, economizes the land resource；String is recruited electric installation to draw by GIL pipeline, string recruits Denso
Setting may be arranged on the outside of former route, therefore when enlarging string recruits electric installation construction, not interfere with the route of former operation；Wait go here and there
After the completion of recruiting electric installation construction, the route of angle tower two sides drawn using the line maintenance time and is connected to GIL casing and can restore
The normal production of route；More traditional string recruits electric installation arrangement and can substantially compress to be drawn since enlarging string recruits electric installation
The line outage time risen；Using GIL pipe arrangement, in Practical Project, string can be arranged according to system position and site contour
Electric installation is recruited, can be built jointly with original substation, string can also be separately provided and mend station, flexible arrangement is high；Make full use of former fortune
Angle tower in row line, string recruit extraction no setting is required the special outlet structure of electric installation, greatly reduce engineering use
Steel amount has saved the construction investment of engineering.
Detailed description of the invention
Fig. 1 is schematic top plan view of the present invention.
Fig. 2 is angle tower wiring sectional schematic diagram.
In attached drawing, mono- base angle tower of 1-, 2- wire jumper, 3- string benefit station inlet wire, the first downlead of 4-, the line side 5-GIL string benefit
Entrance bushing, 6-GIL string mend side string and mend access duct, and 7-GIL string mends side string and covers thread casing, and 8- string recruits electric installation, 9-GIL
String mends side string and mends outlet casing tube, and 10-GIL string mends side string and mends outlet pipeline, and the line side 11-GIL string mends outlet casing tube, 12- second
Downlead, 13- string mend station outlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, rather than whole embodiments, is based on
Embodiment in the present invention, those of ordinary skill in the art just without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
Applicant recruits in an enlarging 750kV string and devises new route in electric installation engineering and draw binding structure, the scheme
Using a base angle tower of original working line, generally the first Ji Ta of substation's outlet, 1 two sides of a base angle tower are unlocked
Wire jumper 2 is connected to lower section string from the first downlead 4 of route of 1 two sides of a base angle tower and the second downlead 12 respectively and recruits
On the GIL casing that electric installation 8 connects, realize that string recruits the connection of electric installation Yu original working line by GIL casing；It is described
GIL casing includes that the line side GIL string covers thread casing 5, GIL string benefit side string covers thread casing 7, GIL string mends side string benefit lead collar
Pipe 9 and the line side GIL string mend outlet casing tube 11.
The string of enlarging recruits electric installation 8 and arranges near angle tower nearby, can build jointly with former substation, string can also be separately provided
Station is mended, the layout pattern that string recruits electric installation 8 is unrestricted；It includes string portion platform, bypass open circuit that the string of enlarging, which recruits electric installation,
Device, ancillary equipment, series connection disconnecting switch, bypass isolating switch, arrester and voltage transformer.
It eliminates traditional string and recruits the gate framework that the outlet of electric installation 8 need to be arranged, string recruits the inlet-outlet line of electric installation 8
Directly draw the underface for being connected to former working line using GIL pipeline, line voltage mutual inductor and arrester are arranged in string nearby and mend
Power distribution equipment region；The GIL pipeline include GIL string mend side string mend access duct 6 and GIL string mend side string mend outlet pipeline 10.
A kind of route of 750kV series compensation power distribution equipment draws binding structure, including is separately positioned on 1 two sides of a base angle tower
The first downlead 4 and the second downlead 12, the line side GIL string cover thread casing 5, GIL string mend side string cover thread casing 7, GIL
String benefit side string mends outlet casing tube 9, the line side GIL string is mended outlet casing tube 11 and gone here and there and recruits electric installation 8, the first downlead 4 and GIL
Line side string covers the connection of thread casing 5；Second downlead 12 is mended outlet casing tube 11 with the line side GIL string and is connect；The line side GIL string
It covers the connection GIL string benefit of thread casing 5 side string and covers thread casing 7, GIL string benefit side string benefit outlet casing tube 9 connects the line side GIL string benefit
Outlet casing tube 11；String recruit electric installation 8 be separately connected GIL string mend side string cover thread casing 7 and GIL string mend side string mend outlet casing tube
9；String recruits the side that 1 transmission line of electricity of a base angle tower is arranged in electric installation 8；First downlead 4 connection string mends station inlet wire 3, the
Two downleads 12 connection string mends station outlet 13.
The line side GIL string cover thread casing 5 and GIL string mend side string cover between thread casing 7 by GIL string mend side go here and there cover
Spool road 6 connects；GIL string mends side string benefit access duct 6 and is provided with more piece.
GIL string benefit side string mends outlet casing tube 9 and the line side GIL goes here and there to mend and mends side string benefit by GIL string between outlet casing tube 11
Outlet pipeline 10 connects；GIL string mends side string benefit outlet pipeline 10 and is provided with more piece.
As shown in Fig. 2, the distance between the first downlead 4 and the second downlead 12 are not less than 50 meters；First downlead, 4 He
The lower end of second downlead 12 is not less than 13m at a distance from ground；String recruits the level between electric installation and the first downlead 4
Distance can be adjusted flexibly according to concrete engineering demand.
String recruit series compensation platform in electric installation 8, bypass breaker, ancillary equipment, series connection disconnecting switch, bypass every
Leave the side that pass, arrester and voltage transformer are arranged at angle tower.
As shown in Figure 1, The present invention gives the embodiment that the route that the string of enlarging 750kV recruits electric installation draws binding structure,
It can be seen from the figure that embodiment is to have extended two and return back out line string to recruit electric installation, this enlarging string recruits electric installation 8 and has transported former
Draw at one base angle tower 1 of row substation outlet and connects and substation builds jointly；The 750kV string of enlarging recruits electric installation and is arranged in out
The side of line angle tower route, be close to it is former run substation, not with former outlet crossing elimination, string recruits the disengaging of electric installation 8
Line draws the underface for being connected to 1 two sides of a base angle tower by 750kV GIL pipeline used for transmission line；The string of enlarging recruits electric installation
Shi Yuyuan route distance construct farther out, does not influence the normal operation production of former route, the outlet including GIL pipeline immediately below route
Casing can also charge installation after construction organization；After the installation is completed to all equipment, angle tower connection is unlocked in line outage
Lead is distinguished to GIL casing in two sides after the wire jumper of two sides route, can restore the operation of former route.
By above-mentioned analysis it can be concluded that, using at route angle tower GIL pipeline draw the string connect to recruit electric installation novel
Structure occupied area is small, enlarging when do not influence former route operation, power off time is greatly decreased, more coordinates with route cooperation, runs
Maintenance is more convenient and arranges more flexible, can apply in engineering；It and is the power distribution equipment design of enlarging series compensation power distribution equipment
Arrangement provides a new optimal solution.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (7)
1. a kind of route of 750kV series compensation power distribution equipment draws binding structure, which is characterized in that turn including being separately positioned on a base
First downlead (4) and the second downlead (12), the line side GIL string of turret (1) two sides cover thread casing (5), GIL string mends side
String covers thread casing (7), GIL string mends side string benefit outlet casing tube (9), the line side GIL string mends outlet casing tube (11) and string recruits
Electric installation (8),
First downlead (4) covers thread casing (5) with the line side GIL string and connect；Second downlead (12) and the line side GIL string are mended
Outlet casing tube (11) connection；The line side GIL string covers thread casing (5) connection GIL string benefit side string and covers thread casing (7), and GIL string is mended
Side string mends outlet casing tube (9) connection line side GIL string and mends outlet casing tube (11)；String recruits electric installation (8) and is separately connected GIL string benefit
Side string covers thread casing (7) and GIL string mends side string and mends outlet casing tube (9)；String recruits electric installation (8) and is arranged in a base angle tower
(1) side of transmission line of electricity.
2. the route of 750kV series compensation power distribution equipment according to claim 1 draws binding structure, which is characterized in that GIL line
Trackside string covers thread casing (5) and GIL string benefit side string covers to go here and there between thread casing (7) by GIL and mends side string benefit access duct (6)
Connection.
3. the route of 750kV series compensation power distribution equipment according to claim 2 draws binding structure, which is characterized in that GIL string
It mends side string benefit access duct (6) and is provided with more piece.
4. the route of 750kV series compensation power distribution equipment according to claim 1 draws binding structure, which is characterized in that GIL string
Benefit side string mends outlet casing tube (9) and the line side GIL goes here and there to mend and mends side string benefit outlet pipeline by GIL string between outlet casing tube (11)
(10) it connects.
5. the route of 750kV series compensation power distribution equipment according to claim 4 draws binding structure, which is characterized in that GIL string
It mends side string benefit outlet pipeline (10) and is provided with more piece.
6. the route of 750kV series compensation power distribution equipment according to claim 1 draws binding structure, which is characterized in that first
The distance between downlead (4) and the second downlead (12) are not less than 50 meters.
7. the route of 750kV series compensation power distribution equipment according to claim 1 draws binding structure, which is characterized in that first
The lower end of downlead (4) and the second downlead (12) is not less than 13m at a distance from ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646310.5A CN109494760B (en) | 2018-12-29 | 2018-12-29 | Line guiding structure of 750kV series compensation power distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646310.5A CN109494760B (en) | 2018-12-29 | 2018-12-29 | Line guiding structure of 750kV series compensation power distribution device |
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| Publication Number | Publication Date |
|---|---|
| CN109494760A true CN109494760A (en) | 2019-03-19 |
| CN109494760B CN109494760B (en) | 2024-03-26 |
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|---|---|---|---|
| CN201811646310.5A Active CN109494760B (en) | 2018-12-29 | 2018-12-29 | Line guiding structure of 750kV series compensation power distribution device |
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2018
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