CN106532438A - Three-phase co-body rigidity air insulation power transmission circuit - Google Patents
Three-phase co-body rigidity air insulation power transmission circuit Download PDFInfo
- Publication number
- CN106532438A CN106532438A CN201611139074.9A CN201611139074A CN106532438A CN 106532438 A CN106532438 A CN 106532438A CN 201611139074 A CN201611139074 A CN 201611139074A CN 106532438 A CN106532438 A CN 106532438A
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- unit
- conductor
- housing
- shaped
- phase
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- 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
- 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
-
- 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
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
- H02G5/063—Totally-enclosed installations, e.g. in metal casings filled with oil or gas
Abstract
The invention relates to a three-phase co-body rigidity air insulation power transmission circuit. The circuit comprises n direct-segment units (2) and m T-type units (5), wherein n >= 1 and m >= 1. Each direct-segment unit (2) comprises a housing filled with insulation air and three direct conductors arranged in the housing. Each T-type unit (5) comprises a T-type housing (52) with a flange and a conductor. The circuit is simple in structure, has standard components, is suitable for various circuit design schemes, and is flexibly arranged. The circuit is adjusted and arranged according different installation environments, is convenient to assemble and construct, and compact in structure and occupies small space.
Description
Technical field
The present invention relates to high voltage power transmission technical field, particularly a kind of three-phase coenosarc rigid gas insulated power circuit.
Background technology
Rigid gas insulated power circuit (GIL), are the insulation with certain pressure by being enclosed in inside metallic conduit
Gas, there is provided the power transmission unit of current channel, and the transmission facility that other insulation assemblies are constituted.
GIL has high reliability, long service life and transmittability as Large Copacity, high voltage, long distance transmission line
Strong the advantages of.GIL is a kind of enclosed construction of metal rigidity, less by ambient atmosphere and environmental effect, also no external magnetic field
Affect.Inside adopts SF6Or SF6And N2, used as dielectric, good insulation preformance, dielectric loss are low for mixed gas or compressed air,
Without problem of aging, without combustibility, reliability is high.The average life of GIL is more than 50 years.The through-put power of current GIL
Up to 4GW, ability to transmit electricity is strong.Advantageously reduce transmitting loop quantity.Using compact enclosed construction, take up an area more than overhead transmission line
It is little.Arrangement flexibly, can simplified system wiring, improve whole system power supply reliability.
GIL can usually run into various deployment scenarios in engineering design：Corner is more, addition current branch, installs test additional and sets
Standby or introduce other accessory detection units and need to increase interface, transmission line of electricity is twice by a tap, is tied using three-phase coenosarc
Structure and aerial line, GIS device, transformer equipment and cable butting, many technical barriers such as long transmission line thermal deformation is big.In circuit
The less corridor position in space, rigid gas insulated power circuit (GIL) take up room greatly.
The change of GIL generatrix directions needs corner segments to complete.GIL is for non-90 degree right-angled bend foundry goods or two at present
Individual right angle is assembled to be realized.Using foundry goods elbow, and two right angle assembly, in the line cannot in absorption equipment operation flatulence of heat type it is cold
The deformation that contracting is produced, need to increase special thermal compensation device, and structure is more complicated.And thermal compensation device investment is big, short life is reliable
Property is poor, has a strong impact on the safe operation of whole bus.
The content of the invention
In order to solve the above problems, reduces cost, raising line arrangement motility, the present invention proposes a kind of multiad
The three-phase coenosarc rigid gas insulated power circuit of conjunction.Concrete scheme is as follows：
A kind of three-phase coenosarc rigid gas insulated power circuit, including n straight section unit, described each straight section unit includes
The housing of internal filling insulating gas and three straight conductors for being arranged on enclosure interior, n >=1, are provided with m T-shaped unit, the T
Type unit includes：T-shaped housing with flange and conductor, m >=1, wherein,
The T-shaped housing includes upper port, left port and right output port, and the conductor is arranged in T-shaped housing；
The n straight section unit is connected by flange two-by-two with m T-shaped unit, and the conductor in each unit is inserted by fingertip
Connect.
Further, the conductor is divided into the first conductor and the second conductor, and first conductor installs static contact, and described second
Conductor installs moving contact, and static contact passes through fingertip grafting with moving contact；Second conductor is T-shaped or L-type.
Further, the T-shaped unit also includes cover plate, and which is arranged on the flange of upper port, left port or right output port.
Further, the T-shaped housing is casting or welding fabrication.
Further, also it is used for making transmission line of electricity change direction, b branch units for making transmission of electricity including a corner units
Circuit separates three branch road connection other equipments, c compensating unit to be used for compensating the expanded by heating change of transmission line of electricity straightway
To realize line build-out deflection, wherein a >=0, b >=0, c >=0, each unit enclosure interior filling insulating gas, the housing of each unit
Between by flange connect, the conductor in each unit pass through socket connection.
Further, including airtight insulating supporting, the airtight insulating supporting be arranged on two neighboring unit flange on or
At the opening of unit, for installing conductor.
In the present invention, flexible corner unit is devised, the corner segments angle of angle Selection needs that can be according to needed for circuit
Degree, designs GIL circuits more flexible.Corner units have larger flexibility simultaneously, can allow angle change ± 1.5 ° energy
Reach expanding with heat and contract with cold and other errors for absorption circuit.
The beneficial effects of the present invention is：
1st, present configuration is simple and reliable, component standard, is suitable for various lines design, flexible arrangement.According to difference
Installation environment adjustment arrangement, ease of assembly construction, compact conformation takes up room little.
2nd, corner units of the invention have larger flexibility using grafting soldering set, can permit angle change ± 1.5 °, turn
The flexible design at place, can splice welding structure by shell and realize low-angle deformation, the error and deformation in absorption circuit.
3rd, the present invention can reduce flange connection quantity, reduce airtight insulating supporting usage quantity, reduce sealing surface quantity, go
Except thermal compensation device.Leakage probability is reduced, circuit reliability of operation is lifted, construction costs is saved, optimizes engineering construction side
Case.
Description of the drawings
Fig. 1 is 2 schematic diagram of the embodiment of the present invention；
Fig. 2 is 3 schematic diagram of the embodiment of the present invention；
Fig. 3 is 4 schematic diagram of inventive embodiments；
Fig. 4 is static contact and moving contact grafting schematic diagram；
Fig. 5 is corner units schematic diagram；
Fig. 6 is T-shaped cell schematics；
Fig. 7 is branch units schematic diagram；
Fig. 8 is compensating unit schematic diagram；
Fig. 9 is straight section cell schematics；
1 schematic diagram of Figure 10 embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail, it should be noted that these are concrete
Explanation simply allow those of ordinary skill in the art to be more prone to, clearly understand the present invention, rather than limitation of the invention solution
Release
A kind of three-phase coenosarc rigid gas insulated power circuit, applicable electric pressure are 66kV～330kV.
Embodiment 1：
As shown in Figure 10, a kind of three-phase coenosarc rigid gas insulated power circuit, straight section unit 2 and T-shaped unit 5, each
Straight section unit 2 includes the housing of internal filling insulating gas and is arranged on three straight conductors of enclosure interior.T-shaped unit includes：
T-shaped housing 52 with flange and conductor.The quantity of straight section unit and T-shaped unit needs to determine according to construction, can have multiple
Straight section unit and T-shaped unit the landform according to transmission line of electricity laying or addition port it needs to be determined that the quantity of combination and row
Cloth order.I.e., it is possible to arrange n (n >=1) straight section units and m (m >=1) T-shaped unit, in use, n straight section unit 2 and
M T-shaped unit 5 is connected two-by-two by flange.T-shaped unit in transmission line of electricity add current branch, install testing equipment additional
Or introduce other auxiliary units, T-shaped unit has several functions in transmission line of electricity, can do conductor branch, can do corner, can be straight
OK, other equipment such as voltage transformer, spark gap can be connected during the use of Bu Zuo branches.As shown in fig. 6, T-shaped housing 52 includes
Upper port 53, left port 54 and right output port 55, conductor are arranged in T-shaped housing.T-shaped housing is casting or welding fabrication.Conductor
It is divided into the first conductor 541 and the second conductor 542, with reference to Fig. 4, the first conductor installs static contact 33, and second conductor is installed dynamic
Contact 33 ', static contact pass through fingertip grafting with moving contact；Second conductor is T-shaped or L-type.T-shaped unit also includes cover plate, its peace
It is mounted on the flange of upper port, left port or right output port, when port does not have use demand, plus cover plate for sealing.
As shown in figure 9, elementary cell of the straight section unit 2 for three-phase coenosarc rigid gas insulated power circuit, including straight shell
Body 21, straight conductor 22 (Fig. 9 can only see two phase conductors due to angle reason, actually three-phase conductor) and three-phase supports insulative
26.Straight housing adopts formed pipe, rolls welded pipe, helically welded tube, and bending welded pipe or agitating friction welded pipe are made.Directly lead
Body is arranged on straight enclosure interior, with adjacent cells conductor grafting.Straight conductor is fixed in straight housing by three-phase supports insulative
Portion, for being fixedly connected or being slidably connected between three-phase supports insulative and straight housing, has two three inside a straight section unit
Phase supports insulative, passes through or bolt between three-phase supports insulative and straight conductor, and welding, crimping are attached.
Straight section unit 2 is connected by flange two-by-two with T-shaped unit 5, and the conductor in each unit passes through fingertip grafting.
The three-phase coenosarc rigid gas insulated power circuit of the present invention can also include branch units.As shown in fig. 7, branch
Unit 1 include airtight insulating supporting 11, the branch's housing 12 with flange and the conductor in branch units (Fig. 7 due to
Angle reason can only see two phase conductors, actually three-phase conductor), airtight insulating supporting is arranged on the opening of branch's housing, gas
Close insulating supporting is connected with conductor.Branch's housing includes the branch road housing 13 that main casing and three are interconnected with main casing,
Road housing outer end opening, it is angled with main casing, usually 90 °.Branch units is separated on three-phase bus unit
Three branch road connects other equipment.This three branch roads can be connected with single-phase bus, be easy to test, operation and the event of different branch
Barrier investigation, and floor space is greatly reduced, make installation more flexibility and reliability.
Branch conductors in branch units include straight conductor and curved conductor；Straight conductor be arranged on main casing in, curved conductor with
Axis is angled, and the angle and main casing are identical with the axis angle of branch's housing, and usually 90 °, curved conductor is arranged on
In branch road housing.The arrangement of branch road housing can be along the parallel distribution of main casing axial direction, it is also possible to be distributed in main casing radially
Same section on.
Three-phase coenosarc GIL is branched into the equipment such as single-phase GIL, convenient and aerial line, GIS device, transformator by branch units
Connection.Or by three-phase coenosarc GIL point be：A time three-phase coenosarc GIL and receipt phase GIL, when there is no these demands,
Add cover plate for sealing at branch's shell nozzle.
As shown in figure 4, the conductor in transmission line of electricity in each unit is respectively arranged at two ends with contact, which passes through contact and connects two-by-two
Connect.Conductor one end is static contact 33, passes through 31 grafting of fingertip with the moving contact of adjacent cells conductor；The other end is moving contact 33 ',
Pass through 31 grafting of fingertip with the static contact of adjacent cells conductor.
The three-phase coenosarc rigid gas insulated power circuit of the present invention can also include compensating unit.Compensating unit is used for mending
The expanded by heating change of transmission line of electricity straightway is repaid, realizes that line build-out is deflected.As shown in figure 8, compensating unit 4 is arranged on and benefit
The corner of circuit vertical direction is repaid, including middle casing 42, two flanged (FLGD) corrugated tubes 41, short flows 43, banking stop
44 and conductor, 42 two ends of middle casing fixedly mount a corrugated tube 41 respectively, are installed with short stream on the corrugated tube 41
Piece 43 and banking stop 44.
The three-phase coenosarc rigid gas insulated power circuit of the present invention can also include corner units.Corner units are used for making
Transmission line of electricity changes direction.As shown in figure 5, corner units 3 include short section housing 34, long piece housing 35 and corner conductor 32, it is short
The one end open planar tilt of piece housing 34 or long piece housing 35 is favoured in housing axis, short section housing 34 and long piece housing 35
The plane of the opening of housing axis is adjacent and is fixedly connected, and makes the long piece housing and the housing axis of short section housing have angle；
Short section housing 34 and long piece housing 35 are equal diameter, by grafting welding fabrication：By 35 grafting of short section housing 34 and long piece housing
It is welded into certain angle.The docking site of short section housing 34 and long piece housing 35 carries out round and smooth process, reduces local electric field strength.
Conductor of each corner conductor 32 for an axis band bending angle, which is arranged on short section housing 34 and long piece housing
In 35, the axis bending angle of corner conductor is identical with the housing axis angle of long piece housing and short section housing；Wherein, the length
Fixed insulation support member 36 and slip insulated support 37 is provided with piece housing 35, and wherein, fixed insulation support member 36 is close to be turned
At angle, the two ends of corner units 3 are provided with flange, are connected with adjacent cells；Corner conductor 32 passes through 36 He of fixed insulation support member
Slip insulated support 37 is arranged in short section housing 34 and long piece housing 35.Similarly pacify in one end of each corner conductor 32
Equipped with static contact 33, moving contact 33 ' is installed in its other end, the static contact and moving contact of adjacent cells pass through 31 grafting of fingertip.
Airtight insulating supporting is arranged on the flange of two neighboring unit or at the opening of unit, for installing conductor and is protected
The air-tightness of card transmission line of electricity.
Each unit selects different units, any amount combination according to configuration.That is, the three-phase coenosarc of the present invention
Rigid gas insulated power circuit, in addition to above-mentioned straight section unit and T-shaped unit, can also include a corner units 3, its use
In making transmission line of electricity change direction, b branch units 1, which is used for making transmission line of electricity to separate three branch roads connecting other equipments, with
And c compensating unit 4 is used for compensating the expanded by heating change of transmission line of electricity straightway and is deflected with realizing line build-out, wherein a >=
0, b >=0, c >=0, each unit enclosure interior filling insulating gas is connected by flange between the housing of each unit, in each unit
Conductor pass through socket connection.
Embodiment 2：
As shown in figure 1, a kind of three-phase coenosarc rigid gas insulated power circuit, including straight section unit 2, branch units 1, turns
Angle unit 3, compensating unit 4 and T-shaped unit 5.The right output port 55 of T-shaped unit 5 is connected with one end of compensating unit 4, compensating unit 4
The other end be connected with the short section housing 34 of corner units 3, long piece housing 35 is connected with 2 one end of straight section unit, straight section unit 2
The other end is connected with branch units 3.Each unit enclosure interior fills insulating gas, and the housing of each unit is connected by flange, respectively
Conductor socket connection in unit.
Embodiment 3：
As shown in Fig. 2 a kind of three-phase coenosarc rigid gas insulated power circuit includes two straight section units 2, corner units
3, branch units 1, compensating unit 4 and T-shaped unit 5.One end of compensating unit 4 is connected with left port 54, the other end and corner list
The short section housing 34 of unit 3 connects, and corner units deflection angle is 120 °, naturally it is also possible to be arranged as required to into other angles.
The long piece housing 35 of corner units 3 is sequentially connected two straight section units 2, reconnects branch units 1.Filling insulation inside each unit
Gas.
Embodiment 4：
As shown in figure 3, a kind of three-phase coenosarc rigid gas insulated power circuit includes four straight section units 2, corner units
3, compensating unit 4 and T-shaped unit 5.The deflection angle of corner units 3 is 90 °.Two straight section units 2 be sequentially connected then with it is T-shaped
The upper port 53 of unit 5 is connected, the left port 54 of compensating unit one end connecting T-shaped unit, and the other end connects the short of corner units 3
Piece housing 34, the long piece housing 35 of corner units are connected with the straight section unit that two are sequentially connected.Filling insulation inside each unit
Gas, described corner units deflection angle are 90 °.
The three-phase coenosarc rigid gas insulated power circuit of the present invention, simple and reliable for structure, component standard are suitable for multiple line
Road design, flexible arrangement.Arranged according to the adjustment of different installation environments, ease of assembly construction, compact conformation takes up room little.
Claims (6)
1. a kind of three-phase coenosarc rigid gas insulated power circuit, including n straight section unit (2), described each straight section unit (2)
Housing and three straight conductors for being arranged on enclosure interior, n >=1, it is characterised in that be provided with m including internal filling insulating gas
Individual T-shaped unit (5), the T-shaped unit include：T-shaped housing (52) with flange and conductor, m >=1, wherein,
The T-shaped housing includes upper port (53), left port (54) and right output port (55), and the conductor is arranged on the T-shaped shell
In body；
N straight section unit (2) are connected by flange two-by-two with the m T-shaped unit (5), and the conductor in each unit passes through
Fingertip grafting.
2. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that the conductor is divided into
First conductor (541) and the second conductor (542), first conductor install static contact (33), and second conductor installs dynamic touching
Head (33 '), the static contact pass through fingertip grafting with the moving contact；Second conductor is T-shaped or L-type.
3. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that the T-shaped unit
Also include cover plate, which is arranged on the flange of the upper port, the left port or the right output port.
4. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that the T-shaped housing
For casting or welding fabrication.
5. three-phase coenosarc rigid gas insulated power circuit according to claim 1, it is characterised in that also turn including a
Angle unit (3) is used for making transmission line of electricity change direction, b branch units (1) for making transmission line of electricity separate three branch roads connections
Other equipment, c compensating unit (4) are used for compensating the expanded by heating change of transmission line of electricity straightway to realize that line build-out is inclined
Turn, wherein a >=0, b >=0, c >=0, each unit enclosure interior filling insulating gas is connected by flange between the housing of each unit
Connect, the conductor in each unit passes through socket connection.
6. the three-phase coenosarc rigid gas insulated power circuit according to any one of claim 1-5, it is characterised in that bag
Airtight insulating supporting (11) is included, the airtight insulating supporting is arranged on the flange of two neighboring unit or at the opening of unit,
For installing conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139074.9A CN106532438A (en) | 2016-12-12 | 2016-12-12 | Three-phase co-body rigidity air insulation power transmission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139074.9A CN106532438A (en) | 2016-12-12 | 2016-12-12 | Three-phase co-body rigidity air insulation power transmission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106532438A true CN106532438A (en) | 2017-03-22 |
Family
ID=58343020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611139074.9A Pending CN106532438A (en) | 2016-12-12 | 2016-12-12 | Three-phase co-body rigidity air insulation power transmission circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106532438A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193218A (en) * | 2019-12-20 | 2020-05-22 | 河南平高电气股份有限公司 | Three-phase common-box bus turning structure and GIS |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577401A (en) * | 2009-01-22 | 2009-11-11 | 维依埃龙源电工研究院有限公司 | Common tank type gas-insulated transmission line |
| CN105162016A (en) * | 2015-04-03 | 2015-12-16 | 中国能源建设集团广东省电力设计研究院 | Connecting method and connecting structure of valve reactor and voltage source transverter in flexible direct current power transmission |
| CN106129823A (en) * | 2016-06-21 | 2016-11-16 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment and method for arranging |
-
2016
- 2016-12-12 CN CN201611139074.9A patent/CN106532438A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577401A (en) * | 2009-01-22 | 2009-11-11 | 维依埃龙源电工研究院有限公司 | Common tank type gas-insulated transmission line |
| CN105162016A (en) * | 2015-04-03 | 2015-12-16 | 中国能源建设集团广东省电力设计研究院 | Connecting method and connecting structure of valve reactor and voltage source transverter in flexible direct current power transmission |
| CN106129823A (en) * | 2016-06-21 | 2016-11-16 | 中国电力科学研究院 | Extra-high-voltage alternating current mixed gas GIL line segment and method for arranging |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111193218A (en) * | 2019-12-20 | 2020-05-22 | 河南平高电气股份有限公司 | Three-phase common-box bus turning structure and GIS |
| CN111193218B (en) * | 2019-12-20 | 2021-05-11 | 河南平高电气股份有限公司 | Three-phase common-box bus turning structure and GIS |
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Application publication date: 20170322 |