CN103326272B - A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof - Google Patents
A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof Download PDFInfo
- Publication number
- CN103326272B CN103326272B CN201310208907.2A CN201310208907A CN103326272B CN 103326272 B CN103326272 B CN 103326272B CN 201310208907 A CN201310208907 A CN 201310208907A CN 103326272 B CN103326272 B CN 103326272B
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- circuit breaker
- station isolation
- isolation grounding
- electrical apparatus
- combined electrical
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- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 238000002955 isolation Methods 0.000 claims abstract description 58
- 239000004020 conductor Substances 0.000 claims description 21
- 239000012212 insulator Substances 0.000 claims description 18
- 230000005611 electricity Effects 0.000 claims description 15
- 229910018503 SF6 Inorganic materials 0.000 claims description 7
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 7
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof, this monopolar configuration comprises the circuit breaker moved along left and right divide-shut brake, the Upper vertical of circuit breaker is installed with about two spaced apart current transformers, wherein, the top of right current instrument transformer is installed with straight-line transmitting ejector half three station isolation grounding switch moved along left and right divide-shut brake, and the right-hand member of three station isolation grounding switchs is installed with the entrance bushing unit tilted towards upper right side; The top of left current instrument transformer is installed with the outlet casing tube unit tilted towards upper left side.Such layout takes full advantage of space, has the advantage that structure is simple, rationally distributed; The more important thing is, one pole all adopts the mode of vertically installing, and makes alternate driving coupling parts uniformity bearing load, good mechanical stability.
Description
Technical field
The present invention relates to the gas-insulating and fully-enclosed composite type high-voltage combined electrical apparatus of a kind of SF6 and monopolar configuration thereof.
Background technology
Combined electrical apparatus is by two or more High-Voltage Electrical Appliances, form a whole, and each High-Voltage Electrical Appliances still keeps the device of former regulation performance, are divided into open type and totally enclosed type by insulation system by the requirement of electric power system main electrical scheme.Combined electrical apparatus is generally multipole and arranges, each one pole is absolute construction, therefore, the High-Voltage Electrical Appliances in single-phase are selected and assembly, all have a great impact the overall performance (as structure, volume size, alternate drive coordination, mechanical stability etc.) of whole combined electrical apparatus.
As Chinese patent CN101989733A discloses a kind of composite type high-voltage combined electrical apparatus, be closed, comprise three one poles that time interval is arranged, each one pole comprises the circuit breaker be fixed on support, circuit breaker is installed with about three spaced apart three station isolation grounding switchs, wherein, three station isolation grounding switchs of the rightmost side by it setting firmly multiple current instrument transformer is installed with sleeve pipe, and two other three station isolation grounding switch directly set firmly sleeve pipe; In three one poles, three three station isolation grounding switchs that middle one pole is corresponding are all installed in the top of circuit breaker, namely vertically install, and three station isolation grounding switchs that the limit phase electrode pair of both sides is answered are installed in the upper lateral part of respective circuit breaker, namely tilt to install.The mode that this combined electrical apparatus adopts limit phase one pole to tilt to install, after the current transformer of assembling high parameter, by instrument transformer gravity effect, larger stress is born at circuit breaker alternate power transmission shaft coupling place, affects operational stability and the mechanical endurance of circuit breaker; Meanwhile, this combining form of one pole, adopt three three station isolation grounding switchs, cost is high, complicated integral structure, and whole height is higher, cannot Appropriate application space.
Summary of the invention
The object of this invention is to provide a kind of composite type high-voltage combined electrical apparatus being suitable for the assembling of high parameter current transformer, tilt to install the not high problem of the breaker operator stability that causes in order to solve existing combined electrical apparatus because of limit phase one pole.
The monopolar configuration of composite type high-voltage combined electrical apparatus of the present invention adopts following technical scheme: a kind of monopolar configuration of composite type high-voltage combined electrical apparatus, comprise the circuit breaker moved along left and right divide-shut brake, the Upper vertical of circuit breaker is installed with about two spaced apart current transformers, wherein, the top of right current instrument transformer is installed with straight-line transmitting ejector half three station isolation grounding switch moved along left and right divide-shut brake, conduct electricity between the moving contact of three station isolation grounding switchs and the fixed contact of circuit breaker and be connected with, pass vertically through the right electric conductor of corresponding current mutual inductor coil, and the right-hand member of three station isolation grounding switchs is installed with the entrance bushing unit tilted towards upper right side, the inlet wire electric conductor of entrance bushing unit conducts electricity with the isolation fixed contact of three station isolation grounding switchs and is connected, the top of left current instrument transformer is installed with the outlet casing tube unit tilted towards upper left side, conducts electricity the left electric conductor being connected with, passing vertically through corresponding current mutual inductor coil between the outlet electric conductor of outlet casing tube unit and the moving contact of circuit breaker.
Described entrance bushing unit is installed on three station isolation grounding switchs by the curved cylindrical shell of inlet wire, and one end of curved cylindrical shell and the right-hand member of three station isolation grounding switchs to be removablely connected by flange, the corresponding end of the other end and entrance bushing unit is connected.
Described outlet casing tube unit is installed on corresponding current transformer by the curved cylindrical shell of outlet, and one end of curved cylindrical shell to be removablely connected by flange and corresponding current transformer, the corresponding end of the other end and outlet casing tube unit is connected.
Two limit phase one poles in described three-phase one pole into and out of thread casing unit being extended out respectively by the mode rotating corresponding curved cylindrical shell into and out of thread casing unit respectively relative to mesophase spherule one pole.
Described circuit breaker is pot-type sulfur hexafluoride circuit breaker, there is between the housing of described right current instrument transformer and the housing of three station isolation grounding switchs the first disc insulator separated by the air chamber of the two, there is between the housing of three station isolation grounding switchs and the body of entrance bushing unit the second disc insulator separated by the air chamber of the two, there is between the housing of left current instrument transformer and the body of outlet casing tube unit the 3rd disc insulator separated by the air chamber of the two.
Composite type high-voltage combined electrical apparatus of the present invention adopts following technical scheme: a kind of composite type high-voltage combined electrical apparatus, comprise support and be installed on support, spaced apart three one poles along the longitudinal direction, one pole comprises the circuit breaker moved along left and right divide-shut brake, the Upper vertical of circuit breaker is installed with about two spaced apart current transformers, wherein, the top of right current instrument transformer is installed with straight-line transmitting ejector half three station isolation grounding switch moved along left and right divide-shut brake, conduct electricity between the moving contact of three station isolation grounding switchs and the fixed contact of circuit breaker and be connected with, pass vertically through the right electric conductor of corresponding current mutual inductor coil, and the right-hand member of three station isolation grounding switchs is installed with the entrance bushing unit tilted towards upper right side, the inlet wire electric conductor of entrance bushing unit conducts electricity with the isolation fixed contact of three station isolation grounding switchs and is connected, the top of left current instrument transformer is installed with the outlet casing tube unit tilted towards upper left side, conducts electricity the left electric conductor being connected with, passing vertically through corresponding current mutual inductor coil between the outlet electric conductor of outlet casing tube unit and the moving contact of circuit breaker.
Described entrance bushing unit is installed on three station isolation grounding switchs by the curved cylindrical shell of inlet wire, and one end of curved cylindrical shell and the right-hand member of three station isolation grounding switchs to be removablely connected by flange, the corresponding end of the other end and entrance bushing unit is connected.
Described outlet casing tube unit is installed on corresponding current transformer by the curved cylindrical shell of outlet, and one end of curved cylindrical shell to be removablely connected by flange and corresponding current transformer, the corresponding end of the other end and outlet casing tube unit is connected.
Two limit phase one poles in described three-phase one pole into and out of thread casing unit being extended out respectively by the mode rotating corresponding curved cylindrical shell into and out of thread casing unit respectively relative to mesophase spherule one pole.
Described circuit breaker is pot-type sulfur hexafluoride circuit breaker, there is between the housing of described right current instrument transformer and the housing of three station isolation grounding switchs the first disc insulator separated by the air chamber of the two, there is between the housing of three station isolation grounding switchs and the body of entrance bushing unit the second disc insulator separated by the air chamber of the two, there is between the housing of left current instrument transformer and the body of outlet casing tube unit the 3rd disc insulator separated by the air chamber of the two.
Adopt the monopolar configuration of said structure, because the Upper vertical on circuit breaker is installed with two current transformers, one of them current transformer is installed with straight-line transmitting ejector half three station isolation grounding switch, and entrance bushing unit is installed on three station isolation grounding switchs, outlet casing tube unit is installed on another current transformer, such layout takes full advantage of space, has the advantage that structure is simple, rationally distributed; The more important thing is, one pole all adopts the mode of vertically installing, and makes alternate driving coupling parts uniformity bearing load, good mechanical stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of composite type high-voltage combined electrical apparatus of the present invention;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the cutaway view of the monopolar configuration in Fig. 1.
Embodiment
The embodiment of composite type high-voltage combined electrical apparatus of the present invention: as Figure 1-4, comprise support 1, support 1 is installed with three spaced apart one poles along the longitudinal direction, one pole is made up of circuit breaker 2, current transformer 3, three station isolation grounding switch 6, entrance bushing unit 4 and outlet casing tube unit 8.
Circuit breaker 2 adopts the pot-type sulfur hexafluoride circuit breaker of accumbency, comprise Shell of circuit breaker 21, Shell of circuit breaker 21 inner right side is installed with circuit breaker static contact 22, Shell of circuit breaker 21 inside left left and right guiding movement is equipped with moving contact of breaker 23, the left part of moving contact of breaker 23 is in transmission connection by the first rotating shaft 9 of the first connecting lever and operating mechanism, under the turning effort of the first rotating shaft 9, drive moving contact of breaker 23 side-to-side movement and coordinate the divide-shut brake action realizing circuit breaker 2 with circuit breaker static contact.
Current transformer 3 has two, is respectively external current mutual inductor, and two current transformers 3 are vertically installed in the top of Shell of circuit breaker 21 respectively and between left and right every layout, comprise instrument transformer housing 32 and be arranged on the coil 31 in instrument transformer housing 32.Three station isolation grounding switchs 6 are installed in the top of right side instrument transformer housing, and be straight-line transmitting ejector half three station isolation grounding switch, comprise switch case 63, the left side of switch case 63 inside is provided with grounding static contact 62, right side is provided with isolation fixed contact 65, the switch movable contact 64 of guiding movement is in left-right direction provided with between grounding static contact 62 and isolation fixed contact 65, the left end of switch movable contact 64 is installed with insulated tension pole 61, the left end of insulated tension pole 61 is in transmission connection by the second rotating shaft 11 of the second connecting lever and operating mechanism, under the turning effort of the second rotating shaft 11, driving switch moving contact 64 side-to-side movement with grounding static contact 62 with isolate fixed contact 65 and coordinated ground connection or isolated divide-shut brake action, the right side conductive body 14 being connected with and passing vertically through right current mutual inductor coil is also conducted electricity between switch movable contact 64 and circuit breaker static contact 22.Entrance bushing unit 4 is installed in the right-hand member of three station isolation grounding switchs 6 by the curved cylindrical shell 7 of inlet wire, one end of the curved cylindrical shell of inlet wire 7 and the right-hand member of three station isolation grounding switchs 6 to be removablely connected by flange, the corresponding end of the other end and entrance bushing unit 4 is connected, and such entrance bushing unit 4 is obliquely installed towards upper right side; The inlet wire electric conductor 42 that entrance bushing unit 4 comprises inlet wire body 41 and is axially inserted in inlet wire body 41, inlet wire electric conductor 42 conducts electricity with isolation fixed contact 65 and is connected.Outlet casing tube unit 8 is installed on left current instrument transformer by the curved cylindrical shell 5 of outlet, one end of the curved cylindrical shell of outlet 5 to be removablely connected by flange and left current instrument transformer, the corresponding end of the other end and outlet casing tube unit 8 is connected, and such outlet casing tube unit 8 is obliquely installed towards upper left side; The outlet electric conductor 81 that outlet casing tube unit 8 comprises outlet body 82 and is axially inserted in outlet body 82, conducts electricity the left electric conductor 19 being connected with and passing vertically through left current mutual inductor coil between outlet electric conductor 81 and moving contact of breaker 23.
As further optimization, be provided with the first disc insulator 12, first disc insulator 12 between right side instrument transformer housing and switch case 63 and the air chamber of the air chamber of right current instrument transformer and three station isolation grounding switchs 6 is separated; Between switch case 63 and inlet wire body 41, be provided with the second disc insulator 13, second disc insulator 13 air chamber of the air chamber of three station isolation grounding switchs and entrance bushing unit is separated; Between left side instrument transformer housing and outlet body, be provided with the 3rd disc insulator the 10, three disc insulator 10 air chamber of the air chamber of left current instrument transformer and outlet casing tube unit is separated.Each so independently air chamber all can be filled with the SF6 gas of different pressures, reduces material cost, and when can also ensure transport and safeguard, disparate modules operates separately, reduces transport difficulty, improves maintenance efficiency; In addition, in circuit-breaker switching on-off process, can also preventer arc control device produce dust invade in three station isolation grounding switchs.
As further optimization, due to into and out of the curved cylindrical shell of line all by flange respectively with left side instrument transformer with three station isolation grounding switchs are removable is connected, the entrance bushing unit of two limit phase one poles extends out respectively by rotating the curved cylindrical shell of inlet wire, becomes 30 ° of angles between the entrance bushing unit corresponding with middle one pole; Meanwhile, the outlet casing tube unit of limit phase one pole extends out respectively by rotating the curved cylindrical shell of outlet, also claims 30 ° of angles between the outlet casing tube unit corresponding with middle one pole; Such outside one pole outwards open certain angle into and out of sleeve pipe, thus ensure reliable insulation distance.
The embodiment of monopolar configuration of the present invention: as Figure 1-4, consistent with the structure of the one pole in above-described embodiment, its content does not repeat them here.
Claims (9)
1. the monopolar configuration of a composite type high-voltage combined electrical apparatus, it is characterized in that: comprise the circuit breaker moved along left and right divide-shut brake, the Upper vertical of circuit breaker is installed with about two spaced apart current transformers, wherein, the top of right current instrument transformer is installed with straight-line transmitting ejector half three station isolation grounding switch moved along left and right divide-shut brake, conduct electricity between the moving contact of three station isolation grounding switchs and the fixed contact of circuit breaker and be connected with, pass vertically through the right electric conductor of corresponding current mutual inductor coil, and the right-hand member of three station isolation grounding switchs is installed with the entrance bushing unit tilted towards upper right side, the inlet wire electric conductor of entrance bushing unit conducts electricity with the isolation fixed contact of three station isolation grounding switchs and is connected, the top of left current instrument transformer is installed with the outlet casing tube unit tilted towards upper left side, conducts electricity the left electric conductor being connected with, passing vertically through corresponding current mutual inductor coil between the outlet electric conductor of outlet casing tube unit and the moving contact of circuit breaker.
2. the monopolar configuration of composite type high-voltage combined electrical apparatus according to claim 1, it is characterized in that: described entrance bushing unit is installed on three station isolation grounding switchs by the curved cylindrical shell of inlet wire, one end of curved cylindrical shell and the right-hand member of three station isolation grounding switchs to be removablely connected by flange, the corresponding end of the other end and entrance bushing unit is connected.
3. the monopolar configuration of composite type high-voltage combined electrical apparatus according to claim 2, it is characterized in that: described outlet casing tube unit is installed on corresponding current transformer by the curved cylindrical shell of outlet, one end of curved cylindrical shell to be removablely connected by flange and corresponding current transformer, the corresponding end of the other end and outlet casing tube unit is connected.
4. the monopolar configuration of the composite type high-voltage combined electrical apparatus according to claim 1-3 any one, it is characterized in that: described circuit breaker is pot-type sulfur hexafluoride circuit breaker, there is between the housing of described right current instrument transformer and the housing of three station isolation grounding switchs the first disc insulator separated by the air chamber of the two, there is between the housing of three station isolation grounding switchs and the body of entrance bushing unit the second disc insulator separated by the air chamber of the two, there is between the housing of left current instrument transformer and the body of outlet casing tube unit the 3rd disc insulator separated by the air chamber of the two.
5. a composite type high-voltage combined electrical apparatus, comprise support and be installed on support, spaced apart three one poles along the longitudinal direction, it is characterized in that: one pole comprises the circuit breaker moved along left and right divide-shut brake, the Upper vertical of circuit breaker is installed with about two spaced apart current transformers, wherein, the top of right current instrument transformer is installed with straight-line transmitting ejector half three station isolation grounding switch moved along left and right divide-shut brake, conduct electricity between the moving contact of three station isolation grounding switchs and the fixed contact of circuit breaker and be connected with, pass vertically through the right electric conductor of corresponding current mutual inductor coil, and the right-hand member of three station isolation grounding switchs is installed with the entrance bushing unit tilted towards upper right side, the inlet wire electric conductor of entrance bushing unit conducts electricity with the isolation fixed contact of three station isolation grounding switchs and is connected, the top of left current instrument transformer is installed with the outlet casing tube unit tilted towards upper left side, conducts electricity the left electric conductor being connected with, passing vertically through corresponding current mutual inductor coil between the outlet electric conductor of outlet casing tube unit and the moving contact of circuit breaker.
6. composite type high-voltage combined electrical apparatus according to claim 5, it is characterized in that: described entrance bushing unit is installed on three station isolation grounding switchs by the curved cylindrical shell of inlet wire, one end of curved cylindrical shell and the right-hand member of three station isolation grounding switchs to be removablely connected by flange, the corresponding end of the other end and entrance bushing unit is connected.
7. composite type high-voltage combined electrical apparatus according to claim 6, it is characterized in that: described outlet casing tube unit is installed on corresponding current transformer by the curved cylindrical shell of outlet, one end of curved cylindrical shell to be removablely connected by flange and corresponding current transformer, the corresponding end of the other end and outlet casing tube unit is connected.
8. composite type high-voltage combined electrical apparatus according to claim 7, is characterized in that: two limit phase one poles in three one poles into and out of thread casing unit being extended out respectively by the mode rotating corresponding curved cylindrical shell into and out of thread casing unit respectively relative to mesophase spherule one pole.
9. the composite type high-voltage combined electrical apparatus according to claim 5-8 any one, it is characterized in that: described circuit breaker is pot-type sulfur hexafluoride circuit breaker, there is between the housing of described right current instrument transformer and the housing of three station isolation grounding switchs the first disc insulator separated by the air chamber of the two, there is between the housing of three station isolation grounding switchs and the body of entrance bushing unit the second disc insulator separated by the air chamber of the two, there is between the housing of left current instrument transformer and the body of outlet casing tube unit the 3rd disc insulator separated by the air chamber of the two.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208907.2A CN103326272B (en) | 2013-05-30 | 2013-05-30 | A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof |
| PCT/CN2013/001181 WO2014190458A1 (en) | 2013-05-30 | 2013-09-29 | Combined type high-voltage composite apparatus and unipolar structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208907.2A CN103326272B (en) | 2013-05-30 | 2013-05-30 | A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof |
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| CN103326272A CN103326272A (en) | 2013-09-25 |
| CN103326272B true CN103326272B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310208907.2A Active CN103326272B (en) | 2013-05-30 | 2013-05-30 | A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof |
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| CN (1) | CN103326272B (en) |
| WO (1) | WO2014190458A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326272B (en) * | 2013-05-30 | 2016-04-27 | 国家电网公司 | A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19604342A1 (en) * | 1995-05-20 | 1996-11-21 | Abb Patent Gmbh | High voltage switching device |
| CN101001005A (en) * | 2007-01-05 | 2007-07-18 | 西安电力机械制造公司 | Gas insulation switch device |
| CN201319346Y (en) * | 2008-12-09 | 2009-09-30 | 中国西电电气股份有限公司 | SF* composite type high-voltage combined electric appliance |
| CN203301039U (en) * | 2013-05-30 | 2013-11-20 | 国家电网公司 | Composite high-voltage combined electrical appliance and monopole structure thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4146540B2 (en) * | 1998-02-27 | 2008-09-10 | 株式会社日立製作所 | Transformer integrated gas insulated switchgear |
| DE10014680B4 (en) * | 2000-03-17 | 2008-08-07 | Siemens Ag | Three-phase encapsulated high voltage circuit breaker in open-air design |
| JP2005086925A (en) * | 2003-09-10 | 2005-03-31 | Japan Ae Power Systems Corp | Switch |
| CN202094526U (en) * | 2011-06-17 | 2011-12-28 | 江苏精科智能电气股份有限公司 | Composite and combined electrical device |
| CN102403668B (en) * | 2011-10-25 | 2014-09-24 | 沈阳华德海泰电器有限公司 | High-voltage combined electrical apparatus |
| CN103326272B (en) * | 2013-05-30 | 2016-04-27 | 国家电网公司 | A kind of composite type high-voltage combined electrical apparatus and monopolar configuration thereof |
-
2013
- 2013-05-30 CN CN201310208907.2A patent/CN103326272B/en active Active
- 2013-09-29 WO PCT/CN2013/001181 patent/WO2014190458A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19604342A1 (en) * | 1995-05-20 | 1996-11-21 | Abb Patent Gmbh | High voltage switching device |
| CN101001005A (en) * | 2007-01-05 | 2007-07-18 | 西安电力机械制造公司 | Gas insulation switch device |
| CN201319346Y (en) * | 2008-12-09 | 2009-09-30 | 中国西电电气股份有限公司 | SF* composite type high-voltage combined electric appliance |
| CN203301039U (en) * | 2013-05-30 | 2013-11-20 | 国家电网公司 | Composite high-voltage combined electrical appliance and monopole structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014190458A1 (en) | 2014-12-04 |
| CN103326272A (en) | 2013-09-25 |
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