CN109243909A - A kind of gas-insulated vacuum load switch - Google Patents
A kind of gas-insulated vacuum load switch Download PDFInfo
- Publication number
- CN109243909A CN109243909A CN201811135463.3A CN201811135463A CN109243909A CN 109243909 A CN109243909 A CN 109243909A CN 201811135463 A CN201811135463 A CN 201811135463A CN 109243909 A CN109243909 A CN 109243909A
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- Prior art keywords
- gas
- load switch
- closed
- insulated
- vacuum
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims description 60
- 238000002955 isolation Methods 0.000 claims description 24
- 230000008033 biological extinction Effects 0.000 claims description 22
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 2
- 229910018503 SF6 Inorganic materials 0.000 description 21
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 21
- 238000012360 testing method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000010891 electric arc Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000005431 greenhouse gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying 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
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The present invention relates to a kind of gas-insulated vacuum load switch, are not less than 0.04MPa by the nitrogen pressure control that will be filled in closed housing body, on the basis of guaranteeing on-load switch insulation performance, aging or damaged caused leakage will not be to environmental effects.
Description
Technical field
The invention belongs to power switchgear technical fields, are specifically related to a kind of gas-insulated vacuum load switch method.
Background technique
It is higher and higher to the reliability requirement of safe power supply as China reinforces the planning of power grid, in operation of power networks
Weak link power generation department take effective control measures, reduce forced outage by every possible means, reduce scope of power outage.
10kV feeder line overhead transmission line, due to outdoor erection, safe operation is directly influenced by ambient enviroment and weather conditions, and there are things
Therefore rate is high, accident searches difficult, security reliability difference problem.Some longer outlying mountain area users of overhead transmission line, even more pass through
The influence for being subjected to harsh weather is unable to normal electricity consumption.Outdoor vacuum circuit breaker, vacuum load switch are by vacuum circuit breaker, very
The device that airport logistic park switch and digital relay and monitoring and communication module combine together can set with bridge, is small in size, investment
Few, its application guarantees that the safe operation of power grid has great importance to the security reliability for improving overhead transmission line.
High-pressure electrified conductor can generate electric arc in the moment being turned on or off, and electric arc will cause short circuit, and moment is huge
Ability may burning apparatus.Therefore, it needs to carry out arc extinguishing in the switchgear of power equipment.SF6 (sulfur hexafluoride) has fine
Insulation performance and arc extinguishing ability, electrical strength is 2.5 times of air, and arc extinction performance is approximately 100 times of air.Usual feelings
Under condition, using the gas insulation switch cabinet of SF6, it is equipped with closed gas tank, SF6 is filled in gas tank, high-pressure electrified conductor envelope
It closes in gas tank, the electric arc generated when conductor is turned on or off can quickly extinguish under the action of SF6.Moreover, gas-insulated is opened
Close cabinet is not influenced to use under severe conditions by external environmental condition variation, and equipment is made to have the peace of high reliability and operation
Quan Xing, meanwhile, the metal parts being enclosed in gas tank avoids phenomena such as getting rusty, and reduces the maintenance times of equipment.
However, Kyoto Protocol clear stipulaties SF6 gas is one of six kinds of greenhouse gases.It was promulgated simultaneously in 1998 in China
SF6 gas is included in hazardous waste list in " the National Hazard waste register " implemented.SF6 gas molecule greenhouse effects of the earth
Coefficient is 23900 times to 26000 times of CO2 molecule greenhouse effects of the earth coefficient.SF6 gas molecule can neither chemical degradation, also not
Energy optical deterioration, the service life is 3400 in an atmosphere.According to measuring and calculating, the content average annual growth 8% of SF6 in atmosphere is raw to the mankind
The influence of environment living is up to hundreds of generations, the remote baneful influence for winning CO2 gas.Between global especially Northern Hemisphere recent years, greatly
The trend that SF6 gas concentration linearly rises in gas increasingly causes the concern of international community as its concentration rapidly rises.
According to statistics, the SF6 gas of the annual distribution system consumption of China 10kV power equipment is more than 4500 tons, is equivalent to 1.2
Hundred million tons of CO2 discharges.SF6 gas is not only greenhouse gases, and can decompose under the action of electric arc, spark discharge, corona discharge
With from a variety of noxious products of trip SF4, SF2, S2, F2, S, F etc..The density of SF6 gas is five times of air.If SF6 is electrically set
The raw leakage of preparation, the SF6 gas for being mingled with hypertoxic fluoride can be deposited on bottom, since the gas is colourless, tasteless, be easy to cause
The case where injures and deaths of operation and service personnel, occurs.SF6 gas is difficult to recycle.10kV electrical equipment, which has a large capacity and a wide range and uses, to be divided
It dissipates.It in overhaul of the equipments and after phase equipment life, is recycled even with dedicated reclaimer, but process is complicated, costly.
For this problem, it is gas isolated to disclose a kind of environmental protection for the Chinese patent of Patent No. CN201520175407.8
Switchgear, makes vacuum extinction chamber interior vacuum state, and vacuum puts out the electric arc moment generated after mesohigh circuitry cuts power supply
It goes out, avoids the generation of burning apparatus and contingency；Meanwhile switchgear does not apply SF6, but apply environmental sound
Insulating gas, even if accidental release to the environment of outside, will not generate harmful influence to environment.
However, find in actual use, in this kind of tentative alternative solution, due to insulating gas, such as nitrogen,
Electric breakdown strength is far below SF6 gas, and especially in the on-load switch of hyperbaric environment, electrical resistance is slightly better than dry air,
It cannot achieve stable insulation performance and arc extinguishing ability, therefore, it is exhausted be badly in need of a kind of vacuum load switch environment-friendly type gas
Edge method.
Summary of the invention
The present invention is intended to provide a kind of gas-insulated vacuum load switch, to solve existing vacuum load switch separation gas
The problem that pollution is big, application environment voltage is low.
Concrete scheme is as follows: a kind of gas-insulated vacuum load switch, including a closed shell, which is equipped with
Entrance bushing group and outlet casing tube group are equipped in the closed housing body for connecting the true of the entrance bushing group and outlet casing tube group
Empty extinguisher and switching-on mechanism；Insulating gas is filled in the closed housing body, and by the intracorporal switching-on mechanism of closed housing and very
Empty extinguisher immerses in the insulating gas；The insulating gas air pressure of closed enclosure interior is not less than 0.04MPa.
The further technical solution of the present invention are as follows: further include an insulation booth, which is set in the closed housing body, and should
The contact assembly and vacuum extinction device of switching-on mechanism are set in the insulation booth.
The further technical solution of the present invention are as follows: the insulation booth has an opening portion towards switching-on mechanism direction, will
Contact assembly is set in the insulation booth；The outer wall of the insulation booth is connected to the inner wall of the closed shell by isolation mount, with
External series gap is formed between the inner wall of the closed shell.
The further technical solution of the present invention are as follows: the entrance bushing group and the outlet casing tube group pass through the vacuum extinction device phase
Connection；The switching-on mechanism includes main shaft and the insulated pull rod that is connected on the main shaft, which is connected to the vacuum and goes out
On arc device, for manipulating the contact assembly being set in the vacuum extinction device.
The further technical solution of the present invention are as follows: further include a gas pressure sensor, which is set to
On the closed shell, has and protrude out to the intracorporal detector of the closed housing, for detecting insulating gas in closed housing body
Air pressure.
The further technical solution of the present invention are as follows: further include a pressure relief mechanism, which is set on the closed shell.
The further technical solution of the present invention are as follows: the switching-on mechanism includes that big axis, isolation knife and contact knife seat is isolated, should be every
It is set on the big axis of the isolation from knife, which is connected in the entrance bushing group, and the isolation knife is electrically connected by a conductive clip
It is connected to the corresponding vacuum extinction device.
The further technical solution of the present invention are as follows: the intracorporal insulating gas of the closed housing is nitrogen.
The further technical solution of the present invention are as follows: the concentration of nitrogen is not less than 96% in the closed housing body.
The further technical solution of the present invention are as follows: the nitrogen pressure of the closed enclosure interior is 0.04~0.08MPa.
The further technical solution of the present invention are as follows: the nitrogen pressure of the closed enclosure interior is not less than 0.06MP.
The utility model has the advantages that since nitrogen electrical isolation performance is poor, conventional technique scheme be replaced by other properties every
From gas, in prior art means, the gas for being able to achieve high voltage electrical isolation only has the SF6 gas of high pollution.It is asked for this
Topic, proposing for the invention are a kind of by pressure control, the conventional free of contamination insulating gas of raising, as nitrogen, drying are empty
The technical solution of the mixed gas electrical isolation performance such as gas, experimental study have gone out to be able to achieve and the same electrical isolation of SF6 gas phase
The nitrogen pressure range of effect, i.e., by the control of the insulating gas pressure such as nitrogen that will be filled in closed housing body for not less than
0.04MPa (on the basis of standard atmospheric pressure or closed hull outside actual pressure), in the base for guaranteeing on-load switch insulation performance
On plinth, aging or damaged caused leakage will not be to environmental effects.
In further technical solution, to realize that electrical isolation, the present invention also set up insulation booth in closed enclosure interior,
Preferably, insulation booth is mica sheet material, realize separately from and vacuum interrupter part and closed inner walls face it
Between isolation, coordinated insulation gas reached higher electric property.
Technical solution of the present invention finds on the basis of many experiments are probed into, when nitrogen pressure reaches 0.08MPa,
Electric property simultaneously can not increase with air pressure and be reinforced, even if identical electrical isolation effect may be implemented, air pressure elevated band is come
Sealing difficulty increases, and sealing gas leakage easily leads to the failure of its obturation effect of airtight box body.
Detailed description of the invention
Fig. 1 shows one partial sectional view of gas-insulated vacuum load switch embodiment of the present invention；
Fig. 2 shows two partial sectional views of gas-insulated vacuum load switch embodiment of the present invention.
Specific embodiment
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment one
This embodiment offers a kind of gas-insulated vacuum load switch for using nitrogen as insulating gas.
As shown in connection with fig. 1, the gas-insulated vacuum load switch of the embodiment comprising a closed shell 1, the closed housing
The two sides of body 1 are equipped with two groups of inlet-outlet sleeves 2, and the fixing end of each inlet-outlet sleeve 2 runs through the side wall of closed shell 1
Face, to protrude out to inside closed shell 1, to be respectively formed entrance bushing combination outlet casing tube group.
On the closed shell 1, the big axis 5 of isolation and the big axis 6 of vacuum tube be installed, and the big axis 5 of the isolation be equipped with every
From knife, the inlet-outlet sleeve 2 in the entrance bushing group of the corresponding isolation knife is equipped with contact knife seat, and the contact knife seat and the isolation knife are suitable
With contact assembly is formed, the big axis 5 of the isolation, isolation knife and contact knife seat cooperatively form switching-on mechanism；Meanwhile the big axis of the vacuum tube
6 are connected on the inlet-outlet sleeve 2 of leading-out terminal by a vacuum extinction device 3, which is connected to vacuum by flexible circuit conductor point
On the conductive clip of extinguisher 3, pass through vacuum extinction to realize entrance bushing group and the outlet casing tube group of closed 1 two sides of shell
Device 3 and the connection of switching-on mechanism point；Meanwhile it being arranged with current transformer 15 on the vacuum extinction device 3, to realize the inspection of current value
It surveys.
In this embodiment, it is not less than 96% nitrogen in closed shell 1 filled with gas concentration, using as insulation gas
Body, according to GB 1984-2014 " high-voltage AC breaker ", DL/T 402-2007 " high-voltage AC breaker order technical conditions "
The gas-insulated vacuum load switch of the embodiment is tried area with the nitrogen gas of 96% concentration by clause 6.2 (Insulation Test)
Atmospheric conditions: b=101.5KPa, h=7.0g/m3.Atmospheric corrections factor: Kt=0.97 is carried out more using different atmospheric pressure values
Secondary voltage-withstand test, experimental result are shown in Table 1；
1 industrial frequency withstand voltage of table tests test recording table
Relatively closed 1 external pressure of shell, when nitrogen gas concn reaches 0.04MPa, the 1 inside nitrogen of closed shell of the embodiment
Gas, electric property greatly enhance, and meet national standard pressure resistance demand.
Meanwhile in this embodiment, by inlet-outlet sleeve 2 for two sides, and between corresponding vacuum extinction device
One-phase circuit component is constituted with switching-on mechanism, alternate setting mica sheet realizes alternate insulation and set to form phase insulation box
It sets.
Embodiment two
As shown in connection with fig. 2, it is exhausted as the gas of insulating gas that this embodiment offers a kind of nitrogen of built-in insulation box 30
Edge vacuum load switch, structure are basically the same as the first embodiment:
It includes a closed shell 1, and the two sides of the closed shell 1 are equipped with inlet-outlet sleeve 2, to respectively constitute entrance bushing
Group and outlet casing tube group；The closed shell 1 includes lower box and upper cover 11, which is hermetically pacified by sealing ring
Loaded on the lower box, and junction coats white glue；Meanwhile air pressure inside is automatically controlled to realize, it is provided in the upper cover 11
Automatic pressure relief valve, in the embodiment, it is 0.08MPa which, which triggers pressure difference, meanwhile, to realize explosion-proof setting, on this
Explosion-protection equipment 14 is additionally provided on lid 11.
In this embodiment, the inlet-outlet sleeve 2 of closed 1 two sides of shell, connection type are different from embodiment 1: should
The inlet-outlet sleeve 2 of entrance bushing group and the outlet casing tube group is connected by a vacuum extinction device 3 correspondingly, i.e., should
3 both ends of vacuum extinction device are connected separately with an inlet-outlet sleeve 2, and the vacuum extinction device 3 is built-in with contact assembly, Jin Ershi
Both existing is connected or disconnected with.
Switching-on mechanism in the embodiment includes main shaft 40 and the insulated pull rod 4 that is connected on the main shaft 40, the insulation
Pull rod 4 is connected on the corresponding vacuum extinction device 3, for manipulating the contact assembly being set in the vacuum extinction device 3, control
The connection or cut-off of each phase line.Each phase line is corresponded to, is additionally provided with and is sheathed on inlet-outlet sleeve 2 in the closed shell 1
Current transformer 15.
In this embodiment, which is top opening setting, and in this embodiment, which is mica sheet
The insulation booth 30 is set in closed shell 1 and keeps the outer wall of insulation booth 30 closed with this by material and open-topped rectangular box
External series gap is equipped between the inner wall of shell 1, meanwhile, vacuum extinction device 3 is fully enclosed in the insulation booth 30, and both ends pass through exhausted
The wall surface of edge box 30 is connected to corresponding inlet-outlet sleeve 2.
Wherein, specifically, the insulation booth 30 is fixed on the position in the middle part of closed 1 bottom surface of shell, and insulation booth bottom
Be connected to the bottom surface of closed shell 1 by isolation mount, and then realize the formation of external series gap, and carry out separately from.
According to GB 1984-2014 " high-voltage AC breaker ", DL/T 402-2007 " high-voltage AC breaker order technology
Condition " clause 6.2 (Insulation Test), the vacuum load switch of the embodiment, greater than the nitrogen gas of 96% concentration, using difference
Atmospheric pressure value carry out multiple lightning impulse test, experimental result is shown in Table 2:
2 Lightening impulse test test recording table of table
By 2 experimental test data of table it is found that the embodiment works as nitrogen by the atmospheric pressure value of nitrogen in the closed shell 1 of control
Atmospheric pressure value reach 0.04MPa, lightning impulse national standard can be realized；Meanwhile for lightning impulse resistant performance requirement, work as gas
After pressure reaches 0.08MPa, continue boost air pressure, lightning impulse resistant performance, which has no, clearly to be promoted, i.e. 0.08MPa is optimum gas
The pressure value upper limit；So it is 0.08MPa that automatic pressure relief valve, which triggers pressure difference,.Meanwhile the real-time monitoring to realize atmospheric pressure value, this is closed
One gas pressure sensor can also be set on shell 1, which is set on the closed shell 1, with convex
The intracorporal detector of the closed housing is extended to, with the air pressure for detecting insulating gas in closed housing body, by the closed enclosure interior
Nitrogen pressure be 0.04~0.08MPa.
In special use environment, to realize higher lightning impulse resistant performance requirement, closed shell 1 in the embodiment
The gas atmosphere difference lower limit value of internal insulating gas air pressure and closed hull outside may be arranged as 0.06MPa, draught head
Upper limit value is 0.08MPa.
For the control for realizing route on column, boom hoisting 12 and fixed cross-arm 13 are additionally provided on the closed shell 1, with reality
It is fixed on its existing column, constitute a pole vacuum on-load switch.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (10)
1. a kind of gas-insulated vacuum load switch, including a closed shell, the closed shell be equipped with entrance bushing group and
Outlet casing tube group, interior vacuum extinction device and the conjunction being equipped with for connecting the entrance bushing group and outlet casing tube group of the closed housing body
Brake mechanism；It is characterized by: being filled with insulating gas in the closed housing body, and the intracorporal switching-on mechanism of closed housing and vacuum are gone out
Arc device immerses in the insulating gas；
The insulating gas air pressure of closed enclosure interior is not less than 0.04MPa.
2. gas-insulated vacuum load switch according to claim 1, it is characterised in that: further include an insulation booth, this is absolutely
Edge box is set in the closed housing body, and the contact assembly of the switching-on mechanism and vacuum extinction device are set in the insulation booth.
3. gas-insulated vacuum load switch according to claim 2, which is characterized in that there is the insulation booth direction to close
Contact assembly is set in the insulation booth by the opening portion in brake mechanism direction；The outer wall of the insulation booth is connected by isolation mount
To the inner wall of the closed shell, to form external series gap between the inner wall of the closed shell.
4. gas-insulated vacuum load switch according to claim 2, which is characterized in that the entrance bushing group and the outlet
Casing group is connected by the vacuum extinction device；The switching-on mechanism includes main shaft and the insulated pull rod that is connected on the main shaft,
The insulated pull rod is connected on the vacuum extinction device, for manipulating the contact assembly being set in the vacuum extinction device.
5. gas-insulated vacuum load switch according to claim 1, it is characterised in that: further include gas pressure sensing
Device, the gas pressure sensor are set on the closed shell, are had and are protruded out to the intracorporal detector of the closed housing, for examining
Survey the air pressure of insulating gas in closed housing body.
6. gas-insulated vacuum load switch according to claim 1, it is characterised in that: it further include a pressure relief mechanism, it should
Pressure relief mechanism is set on the closed shell.
7. gas-insulated vacuum load switch according to claim 1, it is characterised in that: the switching-on mechanism includes that isolation is big
Axis, isolation knife and contact knife seat, the isolation knife are set on the big axis of the isolation, which is connected in the entrance bushing group, and
The isolation knife is electrically connected to the corresponding vacuum extinction device by a conductive clip.
8. gas-insulated vacuum load switch described in -7 any claims according to claim 1, it is characterised in that: this is closed
The intracorporal insulating gas of shell is nitrogen.
9. gas-insulated vacuum load switch according to claim 8, it is characterised in that: nitrogen is dense in the closed housing body
Degree is not less than 96%, and air pressure is not less than 0.06MP.
10. gas-insulated vacuum load switch according to claim 8, it is characterised in that: the nitrogen of the closed enclosure interior
Gas air pressure is 0.04~0.08MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811135463.3A CN109243909A (en) | 2018-09-28 | 2018-09-28 | A kind of gas-insulated vacuum load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811135463.3A CN109243909A (en) | 2018-09-28 | 2018-09-28 | A kind of gas-insulated vacuum load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109243909A true CN109243909A (en) | 2019-01-18 |
Family
ID=65057408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811135463.3A Pending CN109243909A (en) | 2018-09-28 | 2018-09-28 | A kind of gas-insulated vacuum load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243909A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690072A (en) * | 2019-08-29 | 2020-01-14 | 常德威迪电气有限责任公司 | Totally-enclosed high-safety common-compartment type circuit breaker |
| CN111128593A (en) * | 2020-01-03 | 2020-05-08 | 云南电网有限责任公司电力科学研究院 | High-altitude pole-mounted vacuum circuit breaker |
| CN115832920A (en) * | 2023-01-09 | 2023-03-21 | 江苏安靠智能输电工程科技股份有限公司 | Totally-enclosed insulated substation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332048Y (en) * | 2008-12-31 | 2009-10-21 | 宁波鑫鑫鑫寅电气有限公司 | Air-insulated vacuum load switch |
| CN204696549U (en) * | 2015-03-26 | 2015-10-07 | 深圳市飞越开关设备有限公司 | The gas isolated switch cubicle of a kind of environmental protection |
| CN106786112A (en) * | 2016-12-28 | 2017-05-31 | 滁州品之达电器科技有限公司 | A kind of environmentally friendly gas isolated switch cubicle |
| CN208622649U (en) * | 2018-09-28 | 2019-03-19 | 厦门闽光电气实业有限公司 | A kind of gas-insulated vacuum load switch |
-
2018
- 2018-09-28 CN CN201811135463.3A patent/CN109243909A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332048Y (en) * | 2008-12-31 | 2009-10-21 | 宁波鑫鑫鑫寅电气有限公司 | Air-insulated vacuum load switch |
| CN204696549U (en) * | 2015-03-26 | 2015-10-07 | 深圳市飞越开关设备有限公司 | The gas isolated switch cubicle of a kind of environmental protection |
| CN106786112A (en) * | 2016-12-28 | 2017-05-31 | 滁州品之达电器科技有限公司 | A kind of environmentally friendly gas isolated switch cubicle |
| CN208622649U (en) * | 2018-09-28 | 2019-03-19 | 厦门闽光电气实业有限公司 | A kind of gas-insulated vacuum load switch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690072A (en) * | 2019-08-29 | 2020-01-14 | 常德威迪电气有限责任公司 | Totally-enclosed high-safety common-compartment type circuit breaker |
| CN111128593A (en) * | 2020-01-03 | 2020-05-08 | 云南电网有限责任公司电力科学研究院 | High-altitude pole-mounted vacuum circuit breaker |
| CN115832920A (en) * | 2023-01-09 | 2023-03-21 | 江苏安靠智能输电工程科技股份有限公司 | Totally-enclosed insulated substation |
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