CN108242605A - A kind of extra-high voltage double shield composite bushing - Google Patents
A kind of extra-high voltage double shield composite bushing Download PDFInfo
- Publication number
- CN108242605A CN108242605A CN201711472412.5A CN201711472412A CN108242605A CN 108242605 A CN108242605 A CN 108242605A CN 201711472412 A CN201711472412 A CN 201711472412A CN 108242605 A CN108242605 A CN 108242605A
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- China
- Prior art keywords
- bolted
- shield
- end cap
- double shield
- extra
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0009—Casings with provisions to reduce EMI leakage through the joining parts
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Cable Accessories (AREA)
- Insulators (AREA)
Abstract
A kind of extra-high voltage double shield composite bushing, it is related to special voltage electrical equipment technical field, including a middle conductor, insulating sleeve is socketed on the outside of the middle conductor, the insulating sleeve is bolted with end cap, middle conductor is bolted with end cap, insulating sleeve is bolted with counter flange, end cap is bolted with double shield ring, end cap is equipped with wire connection terminal, heat dissipation regulating mechanism is equipped between the end cap and wire connection terminal, double shield mechanism is equipped in the insulating sleeve.Present invention optimizes the double shield ring of composite bushing, radiator and internal double shield mechanisms, reduce radio interference, effectively prevent wire connection terminal partial discharge phenomenon, enhance local heat dissipation performance, improve inside pipe casing non-uniform electric problem, the dielectric level and service life of casing are improved, ensure that the security performance of GIS device operation.
Description
Technical field
The present invention relates to special voltage electrical equipment technical fields, specifically a kind of to be used for 1100kV gas-insulated metals
The extra-high voltage double shield composite bushing of switchgear (abbreviation GIS).
Background technology
With the commercialization construction of China's extra-high voltage grid, electric system T ＆ D Technology makes constant progress, to reduce
Electric energy loss during power transmission and transformation, the voltage class for improving power transmission and transformation line is imperative, and 1100kV GIS devices are wanted
It asks and increasingly improves, important component of the 1100kV composite bushings as ultra-high voltage GIS equipment, to ensure in equipment running process
Reliability, need to have good mechanics and electric property.The big portion of 1100kV composite bushings that domestic each GIS producers succeed in developing
Divide using glass fiber material and silica gel sheath structure, the shielding of internal equipment single-layer metal has light-weight, antifouling, explosion-proof, anti-
The advantages that shake, improves the mechanical support performance and electrical insulation properties of casing to a certain extent.
1100kV composite bushings lead to internal field in the presence of local heat dissipation performance is poor, internal electric field is unevenly distributed at present
The problems such as intensity is excessive, insulation margin is relatively low reduces the reliability of equipment safety operation.
Invention content
For existing ultra-high voltage GIS equipment 1100kV composite bushings in structure function and technical shortcoming, sheet
Invention provides a kind of extra-high voltage double shield composite bushing, can be to avoid the generation of the above problem.
The technical scheme adopted by the invention to solve the technical problem is that：
Including a middle conductor, insulation sleeve is socketed on the outside of the middle conductor for a kind of extra-high voltage double shield composite bushing
Pipe, the insulating sleeve are bolted with end cap, and middle conductor is bolted with end cap, insulating sleeve and transition method
Orchid is bolted, and end cap is bolted with double shield ring, and end cap is equipped with wire connection terminal, the end cap and terminals
Heat dissipation regulating mechanism is equipped between son, double shield mechanism is equipped in the insulating sleeve.
The double shield mechanism includes inner shield and external shield, and inner shield and external shield are exhausted by 12 circumference uniform distributions
Edge column is fixedly connected, and six cylinder grooves are uniformly arranged on the connecting flange of external shield upper end, and insulated column one end is inserted into cylinder groove
It is bolted with external shield, the insulated column of inner shield and downside is connected by transition bracket, small shielding and big stent by bolt
It connects, external shield and the big stent of six circumference uniform distributions are bolted.
Further, the middle conductor is equipped with upper shielding, and the upper shielding is bolted to connection on end cap.
Further, the heat dissipation regulating mechanism is radiator, and the silver-plated end face of radiator is bolted with end cap.
Further, the heat dissipation regulating mechanism includes outer housing, upper plate, elevating lever, guide sleeve, mobile bar and voussoir,
Upper plate is equipped on the downside of the wire connection terminal, the upper plate is connected with elevating lever, guide sleeve, the lifting are equipped in the outer housing
Bar can slide up and down in guide sleeve, and through-hole is provided in outer housing both sides, and mobile bar is sliding combined in the through-hole, described
Mobile bar is equipped with voussoir, and the elevating lever is equipped with the wedge slot coordinated with voussoir.
Further, hollow tube is equipped in the middle part of the mobile bar, the hollow tube is connected with a plurality of angularly disposed air-breathing
Pipe.
Further, the connecting flange, which is gone into battle, shows several sliding grooves, and sprocket wheel, institute are sliding combined in the sliding groove
It states and chain is installed on the outside of sprocket wheel, the chain is equipped with multiple insulated columns.
Further, big stent and the trepanning of inner shield junction are slot hole.
Further, the inner shield is bolted with connecting flange, and the connecting flange one side is connected by bolt
Small shielding is connected to, insulated column has been bolted in the connecting flange another side, and insulated column is bolted with external shield,
External shield is bolted with counter flange.
Further, the transition bracket is bowl structure.
The beneficial effects of the invention are as follows：
1st, the design optimization of the present invention double shield ring of 1100kV composite bushings, radiator and internal double shield mechanism, drop
Radio interference in low ambient enviroment, effectively prevents wire connection terminal partial discharge phenomenon, enhances 1100kV compound sleeves
Pipe part heat dissipation performance improves inside pipe casing non-uniform electric problem, solves inside pipe casing local electric field strength mistake
Big problem improves the dielectric level and service life of casing, ensure that the security performance of GIS device operation.
2nd, can also accelerate to radiate while the design of heat dissipation regulating mechanism can easily dismantle wire connection terminal.
3rd, double shield ring and insulating sleeve and end cap are bolted, effectively uniform insulating sleeve at wire connection terminal
Electric field distribution, avoid the radio interference in ambient enviroment.
4th, inner shield is fixedly connected with external shield by the insulated column of 12 circumference uniform distributions, improves the exhausted of insulating sleeve
Edge performance.
5th, transition bracket is bowl structure, can improve field uniformity on the downside of insulated column.
6th, stent and the trepanning of inner shield junction are slot hole, are easily assembled.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the sectional view of heat dissipation regulating mechanism；
Fig. 3 is the structure diagram of insulated column installation and adjustment mechanism.
In figure：1- double shield rings；2- wire connection terminals；3- heat dissipation regulating mechanisms；4- end caps；It is shielded on 5-；6- insulating sleeves；
7- middle conductors；8- counter flanges；9- double shields mechanism；10- inner shields；11- external shields；The small shieldings of 12-；13- connecting flanges；
14- insulated columns；15- transition brackets；The big stents of 16-, 17- annular mounting frames, 21- sliding grooves, 22- sprocket wheels, 23- chains, outside 31-
Housing, 32- upper plates, 33- elevating levers, 34- guide sleeves, 35- mobile bars, 36- voussoirs, 37- hollow tubes, 38- air intake ducts.
Specific embodiment
As shown in Figure 1 to Figure 3, a kind of extra-high voltage double shield composite bushing, including a middle conductor 7, the middle conductor
Outside is socketed with insulating sleeve 6, and the insulating sleeve 6 is bolted with end cap 4, and middle conductor 7 passes through bolt with end cap 4
Connection.Insulating sleeve 6 is bolted with counter flange 8.7 side of middle conductor is additionally provided with shielding 5, the upper screen
5 are covered to be bolted to connection on end cap 4.
End cap 4 is bolted with double shield ring 1, and end cap 4 is equipped with wire connection terminal 2, at wire connection terminal
Local temperature height caused by heat dissipation performance difference leads to electric field change, security risk occurs.
Heat dissipation regulating mechanism 3 is equipped between the end cap and wire connection terminal, the heat dissipation regulating mechanism can be radiator, dissipate
The hot silver-plated end face of device is bolted with end cap.Silver-plated process work is used in radiator and middle conductor both ends specified range
Skill improves casing heat dissipation performance and through-current capability.
A kind of optimization design of scheme, the heat dissipation regulating mechanism include outer housing 31, upper plate 32, elevating lever 33, are oriented to
Set 34, mobile bar 35 and voussoir 36, the wire connection terminal downside are equipped with upper plate 32, and the upper plate is connected with elevating lever, described outer
Guide sleeve 34 is equipped in housing, the elevating lever can slide up and down in guide sleeve, and outer housing both sides are provided with through-hole, described
Mobile bar 35 is sliding combined in through-hole, the mobile bar is equipped with voussoir 36, and the elevating lever is equipped with what is coordinated with voussoir
Wedge slot can drive elevating lever realization to move up and down when mobile bar moves left and right.This design enables to wire connection terminal to pacify
It is more convenient convenient to fill.And outer housing and wire connection terminal transmission of heat by contact, increase heat dissipation area.
Hollow tube 37 is equipped in the middle part of the mobile bar, the hollow tube is connected with a plurality of angularly disposed air intake duct 38.It is logical
It crosses from hollow tube interior suction gas so that negative pressure is formed in hollow tube, the presence of negative pressure causes the hot-air being located in outer housing from suction
It is taken away in tracheae, then negative pressure can be also formed in outer housing so as to which from extraneous air-breathing, the temperature at this is reduced in the form of air-cooled.
Double shield mechanism 9 is equipped in the insulating sleeve, the double shield mechanism includes inner shield 10 and external shield 11, interior
Shielding 10 is fixedly connected with external shield 11 by the insulated column 14 of 12 circumference uniform distributions, the connecting flange 13 of 11 upper end of external shield
On uniformly arrange six cylinder grooves, 14 one end of insulated column is inserted into cylinder groove and is bolted with external shield 11, inner shield 10
It is bolted with the insulated column 14 of downside by transition bracket 15, small shielding 12 and big stent 16, external shield 11 and six circles
The big stent 16 of Zhou Junbu is bolted.
Optimization design, transition bracket 15 are bowl structure.
Optimization design, the connecting flange, which is gone into battle, shows several sliding grooves 21, and sprocket wheel is sliding combined in the sliding groove
22, the sprocket wheel outside is equipped with chain 23, and the chain is equipped with multiple insulated columns 14.By this design, can facilitate
Change insulated column position how much so that fixed insulated column is changed to packaged type, easy to disassemble with installation.
Big stent 16 and 10 junction trepanning of inner shield are slot hole, reduce installation difficulty, improve equipment operational safety
Property.
The further refinement of scheme, the inner shield 10 are bolted with connecting flange 13, the connecting flange one
Small shielding 12 has been bolted in face, and the connecting flange another side has been bolted insulated column 14, insulated column 14 with
External shield 11 is bolted, and external shield 11 is bolted with counter flange 8.
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
Claims (9)
1. including a middle conductor, insulating sleeve is socketed on the outside of the middle conductor for a kind of extra-high voltage double shield composite bushing,
The insulating sleeve is bolted with end cap, and middle conductor is bolted with end cap, insulating sleeve and counter flange
It being bolted, end cap is bolted with double shield ring, and end cap is equipped with wire connection terminal, it is characterized in that, the end cap
Heat dissipation regulating mechanism is equipped between wire connection terminal, double shield mechanism, double shield mechanism packet are equipped in the insulating sleeve
Inner shield and external shield are included, inner shield is fixedly connected with external shield by the insulated column of 12 circumference uniform distributions, external shield upper end
Connecting flange on uniformly arrange six cylinder grooves, insulated column one end is inserted into cylinder groove and is bolted with external shield, interior
It shields and is bolted with the insulated column of downside by transition bracket, small shielding and big stent, external shield and six circumference uniform distributions
Big stent be bolted.
2. a kind of extra-high voltage double shield composite bushing according to claim 1, it is characterized in that, the middle conductor is equipped with upper
Shielding, the upper shielding are bolted to connection on end cap.
3. a kind of extra-high voltage double shield composite bushing according to claim 1, it is characterized in that, the heat dissipation regulating mechanism is
Radiator, the silver-plated end face of radiator are bolted with end cap.
4. a kind of extra-high voltage double shield composite bushing according to claim 1, it is characterized in that, the heat dissipation regulating mechanism packet
Outer housing, upper plate, elevating lever, guide sleeve, mobile bar and voussoir are included, upper plate is equipped on the downside of the wire connection terminal, the upper plate connects
Elevating lever is connected to, is equipped with guide sleeve in the outer housing, the elevating lever can slide up and down in guide sleeve, in outer housing both sides
Be provided with through-hole, be sliding combined with mobile bar in the through-hole, the mobile bar is equipped with voussoir, the elevating lever be equipped with
The wedge slot of voussoir cooperation.
5. a kind of extra-high voltage double shield composite bushing according to claim 4, it is characterized in that, it is equipped in the middle part of the mobile bar
Hollow tube, the hollow tube are connected with a plurality of angularly disposed air intake duct.
6. a kind of extra-high voltage double shield composite bushing according to any one of claim 1 to 5, it is characterized in that, the company
Acting flange, which is gone into battle, shows several sliding grooves, and sprocket wheel is sliding combined in the sliding groove, is equipped with chain on the outside of the sprocket wheel, institute
Chain is stated equipped with multiple insulated columns.
7. a kind of extra-high voltage double shield composite bushing according to claim 1, it is characterized in that, big stent is connect with inner shield
Place's trepanning is slot hole.
8. a kind of extra-high voltage double shield composite bushing according to claim 1, it is characterized in that, the inner shield and connection method
Orchid is bolted, and small shielding has been bolted in the connecting flange on one side, and the connecting flange another side passes through spiral shell
It tethers and is connected to insulated column, insulated column is bolted with external shield, and external shield is bolted with counter flange.
9. a kind of extra-high voltage double shield composite bushing according to claim 1, it is characterized in that, the transition bracket is bowl-shape
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711472412.5A CN108242605B (en) | 2017-12-29 | 2017-12-29 | A kind of extra-high voltage double shield composite bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711472412.5A CN108242605B (en) | 2017-12-29 | 2017-12-29 | A kind of extra-high voltage double shield composite bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108242605A true CN108242605A (en) | 2018-07-03 |
| CN108242605B CN108242605B (en) | 2019-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711472412.5A Active CN108242605B (en) | 2017-12-29 | 2017-12-29 | A kind of extra-high voltage double shield composite bushing |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505226A (en) * | 1995-02-12 | 1996-04-09 | Breth; Newton R. | Raised actuator mount |
| CN202930193U (en) * | 2012-09-25 | 2013-05-08 | 成都博课启睿科技有限公司 | Double-shielded dry-type mutual inductor |
| CN103187686A (en) * | 2013-04-01 | 2013-07-03 | 山东彼岸电力科技有限公司 | Extra-high-pressure wall bushing |
| CN203193126U (en) * | 2013-04-01 | 2013-09-11 | 山东彼岸电力科技有限公司 | Extra high tension wall bushing |
-
2017
- 2017-12-29 CN CN201711472412.5A patent/CN108242605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505226A (en) * | 1995-02-12 | 1996-04-09 | Breth; Newton R. | Raised actuator mount |
| CN202930193U (en) * | 2012-09-25 | 2013-05-08 | 成都博课启睿科技有限公司 | Double-shielded dry-type mutual inductor |
| CN103187686A (en) * | 2013-04-01 | 2013-07-03 | 山东彼岸电力科技有限公司 | Extra-high-pressure wall bushing |
| CN203193126U (en) * | 2013-04-01 | 2013-09-11 | 山东彼岸电力科技有限公司 | Extra high tension wall bushing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108242605B (en) | 2019-09-06 |
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