CN106088697B - The dustless assembly shop of GIS cubicle switchs and assembly method - Google Patents
The dustless assembly shop of GIS cubicle switchs and assembly method Download PDFInfo
- Publication number
- CN106088697B CN106088697B CN201610681202.6A CN201610681202A CN106088697B CN 106088697 B CN106088697 B CN 106088697B CN 201610681202 A CN201610681202 A CN 201610681202A CN 106088697 B CN106088697 B CN 106088697B
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- gis
- spring
- passage
- operation room
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- 238000000034 method Methods 0.000 title claims abstract description 17
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 32
- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 30
- 238000002955 isolation Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000005273 aeration Methods 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 16
- 229920000742 Cotton Polymers 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 241000241602 Gossypianthus Species 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cleaning In General (AREA)
Abstract
The dustless assembly shop of GIS cubicle switchs of the present invention and assembly method belong to technical field of power systems；The assembly shop includes that wind drenches passage and operation room, and wind drenches passage and is assemblied between external environment condition and operation room, and the operation room includes vibrating isolation system and integrates the operating system of cleaning, evacuation and aeration；The assembly method drenches passage by wind in operator and equipment, entered after operation room by extraneous, equipment is put on vibrating isolation system, then equipment is cleaned, again GIS cubicle switchs are repeatedly evacuated and charge operation, last time carries out air suction process, GIS cubicle switchs is evacuated, GIS cubicle switchs are filled with sulfur hexafluoride gas finally；The present invention can effectively improve the purity of sulfur hexafluoride, and then improve the properties of GIS cubicle switchs.
Description
Technical field
The dustless assembly shop of GIS cubicle switchs of the present invention and assembly method belong to technical field of power systems.
Background technology
GIS cubicle switchs are the adjustment equipments of a kind of electric current and voltage, are not only able to control effectively big voltage, are prevented
Only power equipment is suffered damage due to the excessive over loading of electric current in running, and GIS cubicle switchs can also be confession in addition
The stability and reliability of electricity provides sound assurance, so GIS cubicle switchs are widely used in electric utility.
GIS cubicle switchs need to be filled with sulfur hexafluoride gas, and the purity of sulfur hexafluoride is directly connected to GIS cubicle switchs
Properties.Want to make sulfur hexafluoride that there is higher purity, not only need to remove the interference of dust, and need to remove other
The interference of foreign gas.
At present, the rule of operation that can much improve sulfur hexafluoride purity has been occurred in that, but has not but found one
There is provided the assembly shop of powerful guarantee can to these rule of operation, this also causes many rule of operation to become empty talk of paper, nothing
Method is realized.
The content of the invention
In order to solve the above problems, the present invention devises a kind of dustless assembly shop of GIS cubicle switchs and assembly method, should
Assembly shop and assembly method can effectively improve the purity of sulfur hexafluoride, and then improve the properties of GIS cubicle switchs.
The object of the present invention is achieved like this：
The dustless assembly shop of GIS cubicle switchs, including wind pouring passage and operation room,
The wind drenches passage and is assemblied between external environment condition and operation room, for the operator into operation room and equipment
Carry out blowing pouring, the dust entrained by removing operator and equipment effectively reduces dust and enters operation room；
The operation room includes the vibrating isolation system for load bearing equipment, integrates the operation of cleaning, evacuation and aeration
System；
The vibrating isolation system includes vibration-isolating platform and is arranged on multiple air springs of vibration-isolating platform bottom；
The operating system includes for evacuation and injects the supervisor of sulfur hexafluoride gas and for spraying cleaning
Looped pipeline,
At the top of the supervisor, bleed-off passage and sulfur hexafluoride passage are inflated in connection respectively, parallel on the inflation bleed-off passage
Inflator pump and air pump are provided with, the sulfur hexafluoride passage connects sulfur hexafluoride air accumulator, and supervisor bottom is detachably connected and connects
Head；
The looped pipeline is co-axially located in supervisor, stretches out from supervisor's side wall, connect alcohol container at the top of looped pipeline.
The dustless assembly shop of above-mentioned GIS cubicle switchs, the wind are drenched passage and are provided with moving sidewalk, when：
When moving sidewalk is run from external environment condition to operation room direction, while moving horizontally and up-down vibration；
When moving sidewalk is run from operation room external environment direction, only move horizontally.
The dustless assembly shop of above-mentioned GIS cubicle switchs, the air spring have six, and each two is divided into one group；First
Group spring and the 3rd group of spring are fixedly mounted on the edge of vibration-isolating platform, and second group of spring is arranged on first group of spring and the 3rd group
Between spring, second group of spring bottom is provided with guide rail, and top is provided with pulley, second group of spring can in first group of spring and
Move between 3rd group of spring, second group of spring position adjustment is comprised the following steps：
Step a, first group of spring force of contrast and the 3rd group of spring force size；
Step b, by second group of spring to first group of larger spring of elastic force or the movement of the 3rd group of spring direction；
Step c, when first group of spring force is equal with the 3rd group of spring force, second group of spring stops movement.
The dustless assembly shop of above-mentioned GIS cubicle switchs, outside the air pump, is additionally provided with gas transmission absorption pipeline,
The inwall of pipeline is adsorbed in the gas transmission, is provided with impurity absorption layer, and the impurity absorption layer includes the Os Draconis being arranged alternately
Flower pulp layer and cotton layer.
The dustless assembly method of GIS cubicle switchs realized on the dustless assembly shop of above-mentioned GIS cubicle switchs, including it is following
Step：
Step a, operator and equipment drench passage by wind, enter operation room by the external world；
Step b, equipment are put on vibrating isolation system；
Step c, closing supervisor, the ethanol sprayed using looped pipeline are cleaned to equipment；
Step d, closing looped pipeline, close sulfur hexafluoride passage, successively in only pumping pump work and the bar for inflating pump work
Under part, GIS cubicle switchs are repeatedly evacuated and charge operation, carry out air suction process for the last time, GIS cubicle switchs are taken out
Into vacuum；
Step e, closing looped pipeline, close inflation bleed-off passage, open sulfur hexafluoride passage, GIS cubicle switchs are filled with six
Sulfur fluoride gas.
Beneficial effect：
Firstth, passage is drenched due to being provided with wind, therefore can the operator into operation room and equipment be carried out blowing pouring, remove
Operator and the dust entrained by equipment are removed, dust is effectively reduced and is entered operation room, and then improve the purity of sulfur hexafluoride, so as to
Improve the properties of GIS cubicle switchs.
Secondth, due to being provided with vibrating isolation system, therefore pulse of the earth is effectively isolated, reduces the vibration in operating process, make
Complete equipment is more steady, and this is equally beneficial for, and reduction dust is disorderly, the purity of raising sulfur hexafluoride, so as to improve GIS combinations
The properties of switch.
3rd, due to being designed with the operating system for integrating cleaning, evacuation and aeration, therefore whole operation same
Inner space is carried out, and without changing different instruments, is equally beneficial for resisting the invasion and attack of external dust, is improved sulfur hexafluoride
Purity, so as to improve the properties of GIS cubicle switchs.
4th, as joint is designed to the structure being detachably connected, therefore suitable joint can be changed as needed, make
Of the invention must can be used for different model, different size, different types of GIS cubicle switchs, the scope of application is wider.
5th, due to being repeatedly evacuated and charge operation, therefore can be by the dust of GIS cubicle switchs inner space
Effectively filtered, be equally beneficial for improving the purity of sulfur hexafluoride, so as to improve the properties of GIS cubicle switchs.
Description of the drawings
Fig. 1 is the dustless assembly shop's schematic diagram of GIS cubicle switchs of the present invention.
Fig. 2 is the structural representation of vibrating isolation system.
Fig. 3 is the structural representation of operating system.
In figure：1 vibrating isolation system, 11 vibration-isolating platforms, 12 air springs, 2 operating systems, 21 supervisors, 211 inflator pumps, 212 are taken out
Air pump, 213 sulfur hexafluoride air accumulators, 214 gas transmissions absorption pipeline, 22 looped pipelines, 221 alcohol containers, 23 joints.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the invention is described in further detail.
Specific embodiment one
The present embodiment is the embodiment of the dustless assembly shop of GIS cubicle switchs.
The dustless assembly shop of GIS cubicle switchs of the present embodiment, including wind pouring passage and operation room, as shown in Figure 1.
The wind drenches passage and is assemblied between external environment condition and operation room, for the operator into operation room and equipment
Carry out blowing pouring, the dust entrained by removing operator and equipment effectively reduces dust and enters operation room；
The operation room includes the vibrating isolation system 1 for load bearing equipment, integrates the operation of cleaning, evacuation and aeration
System 2；
The structural representation of the vibrating isolation system 1 as shown in Fig. 2 vibrating isolation system 1 include vibration-isolating platform 11 and be arranged on every
Shake multiple air springs 12 of 11 bottom of platform；
The structural representation of the operating system 2 is as shown in figure 3, operating system 2 includes for evacuation and injects hexafluoro
Change the supervisor 21 of sulfur gas and the looped pipeline 22 for spraying cleaning,
At the top of the supervisor 21, bleed-off passage and sulfur hexafluoride passage are inflated in connection respectively, on the inflation bleed-off passage simultaneously
Row is provided with inflator pump 211 and air pump 212, and the sulfur hexafluoride passage connection sulfur hexafluoride air accumulator 213 is responsible for 21 bottoms
It is detachably connected joint 23；
The looped pipeline 22 is co-axially located in supervisor 21, stretches out from 21 side walls of supervisor, connect alcohol container at the top of looped pipeline 22
221。
Specific embodiment two
The present embodiment is the embodiment of the dustless assembly shop of GIS cubicle switchs.
The dustless assembly shop of above-mentioned GIS cubicle switchs, the wind are drenched passage and are provided with moving sidewalk, when：
When moving sidewalk is run from external environment condition to operation room direction, while moving horizontally and up-down vibration；It is this
Functional design, can will be attached to operator and the dust on equipment shakes, and further improve dust removing effects, and then improve hexafluoro
Change the purity of sulfur, improve the properties of GIS cubicle switchs.
When moving sidewalk is run from operation room external environment direction, only move horizontally；Eliminate in this direction
Lower vibrating function, can be with save energy.
It should be noted that realizing moving sidewalk up-down vibration, can be lifted by arranging in moving sidewalk bottom
Device is realized, skilled person will know how realization, is not repeated explanation in this application.
Specific embodiment three
The present embodiment is the embodiment of the dustless assembly shop of GIS cubicle switchs.
The dustless assembly shop of above-mentioned GIS cubicle switchs, the air spring 12 have six, and each two is divided into one group；The
One group of spring and the 3rd group of spring are fixedly mounted on the edge of vibration-isolating platform 11, and second group of spring is arranged on first group of spring and the
Between three groups of springs, second group of spring bottom is provided with guide rail, and top is provided with pulley, and second group of spring can be in first group of bullet
Move between spring and the 3rd group of spring, this structure is equally applicable in fig. 2, second group of spring position adjustment includes following step
Suddenly：
Step a, first group of spring force of contrast and the 3rd group of spring force size；
Step b, by second group of spring to first group of larger spring of elastic force or the movement of the 3rd group of spring direction；
Step c, when first group of spring force is equal with the 3rd group of spring force, second group of spring stops movement.
This structure design, it is ensured that main passive first group of spring and the 3rd group of spring stress are identical,
Avoid a certain group of spring from taking the lead in fatigue, extend the service life of vibrating isolation system 1.
Specific embodiment four
The present embodiment is the embodiment of the dustless assembly shop of GIS cubicle switchs.
The dustless assembly shop of above-mentioned GIS cubicle switchs, outside the air pump 212, is additionally provided with gas transmission adsorption tube
Road 214, the gas transmission adsorb the inwall of pipeline 214, are provided with impurity absorption layer, and the impurity absorption layer is set including alternating
The keel flower pulp layer put and cotton layer.
This structure design, it is possible to use adjacent two-layer cotton layer is bonded together by keel flower slurry, and keel flower slurry
Adhering dust can also be played a part of；The structure that keel flower pulp layer and cotton layer are arranged alternately is designed to, gas biography can be extended
The effective time of defeated absorption pipeline 214, two-layer cotton layer is separated by keel flower slurry, using one layer of cotton with gas directly contact
Flower layer and keel flower pulp layer are adsorbed, and after saturation, keel flower slurry can be dried, and lose the cementability to two-layer cotton layer,
And make to come off with the cotton layer of gas directly contact, the cotton layer for newly exposing then takes over adsorption function.
Need it is further noted that keel flower of the present invention slurry, directly obtain by extruding Os Draconis scape；And take off
Backward cotton layer and the keel flower slurry being dried, stay in the inwall that pipeline 214 is adsorbed in gas transmission, treat that impurity absorption layer is whole
(impurity can be judged by designing PM2.5 concentration threshold in gas, or setting time threshold after body loses adsorption function
Adsorption layer whether loss of function), 214 integral replacing of pipeline is adsorbed in gas transmission, or only changes gas transmission absorption pipeline
Impurity absorption layer in 214.
For this purpose, having carried out following experiment：
Firstth, one layer of keel flower pulp layer and one layer of cotton layer are considered as into one group, contrast one group and it is multigroup under adsorption effect,
Comparing result is that quality incrementss are the multiple of quality incrementss after one group of absorption, the multiple and group base after multigroup absorption
This is consistent, it was demonstrated that multigroup effect having not available for a group.
Secondth, thickness identical cotton layer is contrasted with alternating structure of the present invention, comparing result is, merely using cotton
Flower layer, it is former be not as many as present configuration quality incrementss, it was demonstrated that the design of keel flower slurry of the present invention has more preferably absorption effect
Really.A kind of effect is keel flower slurry itself with more superior than cotton layer adsorption effect, and a kind of effect is made using keel flower slurry
New cotton layer continuously emerges, it is ensured that adsorption effect.
Specific embodiment five
The present embodiment is the embodiment of the dustless assembly method of GIS cubicle switchs.
The dustless assembly method of GIS cubicle switchs realized on the dustless assembly shop of above-mentioned GIS cubicle switchs, including it is following
Step：
Step a, operator and equipment drench passage by wind, enter operation room by the external world；
Step b, equipment are put on vibrating isolation system 1；
Step c, closing supervisor 21, the ethanol sprayed using looped pipeline 22 are cleaned to equipment；
Step d, closing looped pipeline 22, close sulfur hexafluoride passage, successively in the work of only air pump 212 and inflator pump 211
Under conditions of work, GIS cubicle switchs are repeatedly evacuated and charge operation, are carried out air suction process for the last time, by GIS groups
Combination switch is evacuated；
Need explanation, the last time in this step frequency threshold value can be previously set, reaches threshold value and is considered as
It is last time, it is also possible to by monitoring gas bleeding air quality, for example, monitor the concentration of PM2.5, when air quality reaches
That pumping for requiring is evacuated as last time；
Step e, closing looped pipeline 22, close inflation bleed-off passage, open sulfur hexafluoride passage, GIS cubicle switchs are filled with
Sulfur hexafluoride gas.
It should be noted that in the embodiment above, as long as reconcilable technical scheme can carry out permutation and combination, this
Art personnel can be possible to according to the mathematical knowledge limit of permutation and combination, therefore, the present invention is no longer to permutation and combination
Technical scheme afterwards is illustrated one by one, but it is understood that presently disclosed for the technical scheme after permutation and combination.
Claims (5)
- The dustless assembly shop of 1.GIS cubicle switchs, it is characterised in that drench passage and operation room including wind,The wind drenches passage and is assemblied between external environment condition and operation room, for carrying out to the operator into operation room and equipment Pouring is blown, the dust entrained by removing operator and equipment effectively reduces dust and enters operation room；The operation room includes the vibrating isolation system (1) for load bearing equipment, integrates the operation system of cleaning, evacuation and aeration System (2)；The vibrating isolation system (1) is including vibration-isolating platform (11) and is arranged on multiple air springs of vibration-isolating platform (11) bottom (12)；The operating system (2) includes for evacuation and injects the supervisor (21) of sulfur hexafluoride gas and use for spraying cleaning Looped pipeline (22),At the top of the supervisor (21), bleed-off passage and sulfur hexafluoride passage are inflated in connection respectively, parallel on the inflation bleed-off passage It is provided with inflator pump (211) and air pump (212), sulfur hexafluoride passage connection sulfur hexafluoride air accumulator (213), supervisor (21) bottom is detachably connected joint (23)；The looped pipeline (22) is co-axially located in supervisor (21), stretches out from supervisor's (21) side wall, connect ethanol at the top of looped pipeline (22) Tank (221).
- 2. the dustless assembly shop of GIS cubicle switchs according to claim 1, it is characterised in that the wind drenches passage to be installed There is moving sidewalk, when：When moving sidewalk is run from external environment condition to operation room direction, while moving horizontally and up-down vibration；When moving sidewalk is run from operation room external environment direction, only move horizontally.
- 3. the dustless assembly shop of GIS cubicle switchs according to claim 1, it is characterised in that the air spring (12) Six are had, each two is divided into one group；First group of spring and the 3rd group of spring are fixedly mounted on the edge of vibration-isolating platform (11), and Two groups of springs are arranged between first group of spring and the 3rd group of spring, and second group of spring bottom is provided with guide rail, and top is provided with Pulley, second group of spring can be moved between first group of spring and the 3rd group of spring, the adjustment of second group of spring position include with Lower step：Step a, first group of spring force of contrast and the 3rd group of spring force size；Step b, by second group of spring to first group of larger spring of elastic force or the movement of the 3rd group of spring direction；Step c, when first group of spring force is equal with the 3rd group of spring force, second group of spring stops movement.
- 4. the dustless assembly shop of GIS cubicle switchs according to claim 1, it is characterised in that the air pump (212) is outward Portion, is additionally provided with gas transmission absorption pipeline (214), and the inwall of gas transmission absorption pipeline (214) is provided with impurity suction Attached layer, the impurity absorption layer include the keel flower pulp layer being arranged alternately and cotton layer.
- 5. the dustless assembly method of GIS cubicle switchs realized on the dustless assembly shop of GIS cubicle switchs described in claim 1, Characterized in that, comprising the following steps：Step a, operator and equipment drench passage by wind, enter operation room by the external world；Step b, equipment are put on vibrating isolation system (1)；Step c, closing supervisor (21), the ethanol sprayed using looped pipeline (22) are cleaned to equipment；Step d, closing looped pipeline (22), close sulfur hexafluoride passage, work and inflator pump in only air pump (212) successively (211), under conditions of working, GIS cubicle switchs are repeatedly evacuated and charge operation, are carried out air suction process for the last time, will GIS cubicle switchs are evacuated；Step e, closing looped pipeline (22), close inflation bleed-off passage, open sulfur hexafluoride passage, GIS cubicle switchs are filled with six Sulfur fluoride gas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681202.6A CN106088697B (en) | 2016-08-17 | 2016-08-17 | The dustless assembly shop of GIS cubicle switchs and assembly method |
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| CN201610681202.6A CN106088697B (en) | 2016-08-17 | 2016-08-17 | The dustless assembly shop of GIS cubicle switchs and assembly method |
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| CN108284107A (en) * | 2018-02-02 | 2018-07-17 | 安徽静斯德科技有限公司 | A kind of workpiece cleaning method |
| CN109004571B (en) * | 2018-07-26 | 2020-08-25 | 广西金德泰电气有限公司 | Gas-insulated closed compact metal-enclosed switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0533826A (en) * | 1991-07-29 | 1993-02-09 | Showa Electric Wire & Cable Co Ltd | Active vibration isolation device |
| JP2005069303A (en) * | 2003-08-21 | 2005-03-17 | Tokkyokiki Corp | Pneumatic control type vibration isolator |
| CN201160197Y (en) * | 2008-02-02 | 2008-12-03 | 安徽省电力公司阜阳供电公司 | Multifunctional inflation and deflation integrated joint of SF6 electrical equipment |
| CN204983781U (en) * | 2015-08-26 | 2016-01-20 | 国家电网公司 | A clean assembly room for GIS combined electrical apparatus on -site Assembly |
| CN105846329B (en) * | 2016-03-22 | 2018-02-13 | 国网山东省电力公司淄博供电公司 | Transformer station GIS installs dustlessization construction method |
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