CN201393005Y - Inflatable combined cabinet grounding device and inflatable combined cabinet - Google Patents
Inflatable combined cabinet grounding device and inflatable combined cabinet Download PDFInfo
- Publication number
- CN201393005Y CN201393005Y CN200920106130U CN200920106130U CN201393005Y CN 201393005 Y CN201393005 Y CN 201393005Y CN 200920106130 U CN200920106130 U CN 200920106130U CN 200920106130 U CN200920106130 U CN 200920106130U CN 201393005 Y CN201393005 Y CN 201393005Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- gas
- combination sideboard
- filled type
- type combination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 17
- 229960000909 sulfur hexafluoride Drugs 0.000 description 17
- 238000009413 insulation Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to an inflatable combined cabinet grounding device and an inflatable combined cabinet, belonging to the technical field of power grid operation equipment. The combined cabinet grounding device comprises an electric conductor, and the electric conductor is arranged between a grounding switch and a fuse and connected with the grounding switch and the fuse. The inflatable combined cabinet comprises the inflatable combined cabinet grounding device. The inflatable combined cabinet grounding device and the inflatable combined cabinet have the advantages of simple structures, convenient maintenance, safety and reliability.
Description
Technical field
The utility model relates to the operation of power networks equipment technical field, relates in particular to a kind of gas-filled type combination sideboard earthing device and gas-filled type combination sideboard.
Background technology
China's economic high speed, the growth that continues have driven the strong growth of electricity needs.For guaranteeing power network safety operation and reliable power supply, key cities' power grid construction retrofit work is further strengthened in State Grid Corporation of China's decision, accelerate urban distribution network development, increasing electric network reconstruction scale of investment, and most of investment is used for cable net construction of ground, city and transformation.At present, 10KV distribution network systems cable line is more and more, is especially generally used in the net of city, makes equipment such as ring main unit, loading switch cabinet obtain a large amount of uses.The capital equipment ring main unit, the loading switch cabinet that are used in ground cable net now mainly contain two big kinds: a kind of is air-insulated, the on-load switch of the gas bag formula of poured with epoxy resin, on-load switch+fuse combination sideboard; Another kind is gas-filled type on-load switch, the on-load switch+fuse combination sideboard (gas-filled type combination sideboard) of the full-insulated full-sealed formula of sulphur hexafluoride (SF6) insulation.SF6 comes across earlier 1900s, and it is sulphur formed gas when burning in the gas of fluorine.SF6 gas be in the normal state a kind of colourless, tasteless, nontoxic, do not burn and the gaseous material of stable chemical performance, its density approximately is 5 times of air.Owing to the elecrtonegativity of its molecule, form the ability of anion so SF6 has very strong absorption free electron, and it there are the insulation property of high electric strength, excellence.Its low dissociation temperature and the big characteristics of dissipation energy make it become a kind of gas with excellent arc extinction performance simultaneously.
SF6 gas with its good insulation property and arc extinction performance with and gas have aphlogistic characteristic, progressively be used for electric equipment as novel dielectric by people.The SF6 on-load switch is a kind of on-load switch, isolating switch, earthed switch to be integrated, and is sealed in the casing that is full of SF6 gas, utilizes insulation, the arc extinction performance of SF6 excellence, and close satisfied pass, the switchgear of isolation, ground connection three station functions.Advantages such as that the SF6 on-load switch has is simple in structure, the interlocking reliable, volume is little, maintenance cost is low, safe and reliable can be applicable to different environment and occasion.Because the SF6 on-load switch cooperates the gas-filled type combination sideboard that forms to protect transformer better with current limiting fuse, generally used abroad.Especially the application of sending electricity in the ring network power supply and the terminal of 12kV distribution system also gets more and more
At present, most of market of domestic SF6 on-load switch is mainly still occupied by offshore company's (as ABB, Schneider etc.), the exploitation of domestic existing tens tame manufacturers, produces the SF6 on-load switch (as Katyuan, Wenzhou, sky, Ningbo peace, Beijing section sharp etc.) of various different models.The inflation cabinet is compared with the air insulation cabinet and is had numerous advantages.Owing to adopted the sulfur hexafluoride gas of superior performance, improved insulation property greatly, the insulation property of the sulfur hexafluoride gas of compression are 2～3 times of air, make the volume of cupboard dwindle greatly, help developing to miniaturization.Shown in accompanying drawing 4, in the present existing inflation cabinet in market (comprise external with domestic many producers), because volume is little, the inflation cabinet of general three-stations load switch+fuse combination all is fuse upside ground connection, the downside of fuse does not have earth point, that is to say, when on-load switch is got to earthing position, the upper end of fuse apparatus is a ground connection, the lower end of fuse (being leading-out terminal), by fuse self ground connection, rather than picture air insulation cabinet that works direct ground connection.If it is fuse has fused or because of other reasons damages, just thorough inadequately to equipment and personal safety protection.Utilities Electric Co. is more and more higher to the requirement of equipment and personal safety both at home and abroad from now on, the more and more standard of working, and the problem with grounding that therefore solves the inflation cabinet is just extremely urgent.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this utility model provides a kind of safe and reliable gas-filled type combination sideboard earthing device and gas-filled type combination sideboard.
The purpose of this utility model is achieved through the following technical solutions:
A kind of gas-filled type combination sideboard earthing device, described combination sideboard earthing device comprises electric conductor, described electric conductor is located between earthed switch and the fuse, and is connected with fuse with earthed switch.
Described electric conductor comprises copper bar.
Being connected by the hole that is provided with on the conducting ring of fuse canister and the coupling assembling of fuse and electric conductor of described electric conductor and fuse realizes.
Described coupling assembling comprises connecting bolt and binding post.Wherein, connecting bolt is screwed in the hole that the conducting ring of fuse canister is provided with and with the conducting ring of fuse canister and is connected, and binding post one end is connected with connecting bolt, and the other end is connected with electric conductor.
Also be provided with coupling nut between the hole that is provided with on the conducting ring of connecting bolt and fuse canister, described coupling nut is outside to match with the hole that the conducting ring of fuse canister is provided with, and matches with connecting bolt in inside.Coupling nut one end is connected with the conducting ring of fuse canister, and the other end is connected with binding post.
The hole that the conducting ring of fuse canister is provided with is located on the position with the leading-out wire sleeve end symmetry of fuse canister.
A kind of gas-filled type combination sideboard, described gas-filled type combination sideboard comprise above-mentioned gas-filled type combination sideboard earthing device.
The technical scheme that provides by above-mentioned the utility model as can be seen, gas-filled type combination sideboard earthing device of the present utility model and this gas-filled type combination sideboard realize that by the electric conductor that connects two safety grounds of gas-filled type combination sideboard design between earthed switch and fuse.The utlity model has simple in structure, easy to maintenance and safe and reliable advantage.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of the utility model gas-filled type combination sideboard earthing device and gas-filled type combination sideboard;
Fig. 2 is the left TV structure schematic diagram of the utility model gas-filled type combination sideboard earthing device and gas-filled type combination sideboard;
Fig. 3 is the A portion enlarged drawing of Fig. 2 of the present utility model;
Fig. 4 is the circuit theory diagrams of prior art;
Fig. 5 is the circuit theory diagrams of the utility model gas-filled type combination sideboard earthing device and gas-filled type combination sideboard.
Embodiment
Below in conjunction with accompanying drawing a kind of gas-filled type combination sideboard earthing device described in the utility model and gas-filled type combination sideboard are specifically described:
Extremely shown in Figure 3 referring to Fig. 1, a kind of gas-filled type combination sideboard earthing device, described combination sideboard earthing device comprises electric conductor 3, described electric conductor 3 is located between earthed switch 1 and the fuse 2, and is connected with fuse 2 with earthed switch 1.
Usually, gas-filled type combination sideboard 01 is made up of SF6 on-load switch and current limiting fuse.Wherein the SF6 on-load switch comprises on-load switch, isolating switch, earthed switch 1 Trinity, satisfy to close simultaneously close, isolation, ground connection three station functions.
Described electric conductor 3 comprises copper bar.Electric conductor 3 can also be other electric conductor, as steel, iron, aluminium, silver or golden, and alloy etc.
Described electric conductor 3 was realized with the coupling assembling 30 of electric conductor 3 with being connected by the hole 32 and the fuse 2 that are provided with on the conducting ring 21 of fuse canister of fuse 2.
Described coupling assembling 30 comprises connecting bolt 31 and binding post 33.Wherein, connecting bolt 31 is screwed in the hole 32 that the conducting ring 21 of fuse canister is provided with and with the conducting ring 21 of fuse canister and is connected, and binding post 33 1 ends are connected with connecting bolt 31, and the other end is connected with electric conductor 3.Described connecting bolt 31 can also replace with other connectors, and described binding post 33 can be copper screw cap or other electric-conductors.
Also being provided with coupling nut 34 between the hole 32 that is provided with on the conducting ring 21 of connecting bolt 31 and fuse canister, matches with the hole 32 that the conducting ring 21 of fuse canister is provided with in described coupling nut 34 outsides, matches with connecting bolt 31 in inside.Coupling nut 34 1 ends are connected with the conducting ring 21 of fuse canister, and the other end is connected with binding post 33.
The hole 32 that the conducting ring 21 of fuse canister is provided with is located on the position with leading-out wire sleeve end 4 symmetries of fuse canister.
A kind of gas-filled type combination sideboard, described gas-filled type combination sideboard comprise above-mentioned gas-filled type combination sideboard earthing device.
Referring to Fig. 5, operation principle of the present utility model is as follows:
When the user need safeguard and when changing fuse the inflation combination sideboard, should be at first with the three-stations load switch separating brake, get to the position of earthed switch then, at this moment, owing between the earth terminal of fuse canister downside and on-load switch, installed a conducting copper additional, make when on-load switch is got to earthing position that fuse upside and downside be while ground connection all, safe and reliable, guaranteed personal safety.At this moment, the user can relievedly open cable vault's door and carries out various attended operations and change fuse.
Because above-mentioned design, the utility model gas-filled type combination sideboard earthing device has following advantage with the gas-filled type combination sideboard: fuse canister makes the bilateral symmetry outlet into and compares with original monolateral outlet, the electric field of combination sideboard has greatly improved, and the air chamber built-in electrical insulation ability of combination sideboard has also obtained enhancing accordingly; When cable vault's door of opening combination sideboard carried out various attended operations and change fuse, on-load switch ground connection guaranteed personal safety fuse front and back end ground connection all.Simultaneously, the utility model also has advantage simple in structure, easy to maintenance.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (7)
1, a kind of gas-filled type combination sideboard earthing device is characterized in that, described combination sideboard earthing device comprises electric conductor, and described electric conductor is located between earthed switch and the fuse, and is connected with fuse with earthed switch.
2, gas-filled type combination sideboard earthing device according to claim 1 is characterized in that described electric conductor comprises copper bar.
3, gas-filled type combination sideboard earthing device according to claim 1 and 2 is characterized in that, being connected by the hole that is provided with on the conducting ring of fuse canister and the coupling assembling of fuse and electric conductor of described electric conductor and fuse realizes.
4, gas-filled type combination sideboard earthing device according to claim 3 is characterized in that described coupling assembling comprises connecting bolt and binding post; Wherein, connecting bolt is screwed in the hole that the conducting ring of fuse canister is provided with and with the conducting ring of fuse canister and is connected, and binding post one end is connected with connecting bolt, and the other end is connected with electric conductor.
5, gas-filled type combination sideboard earthing device according to claim 4, it is characterized in that, between the hole that is provided with on the conducting ring of connecting bolt and fuse canister, also be provided with coupling nut, described coupling nut is outside to match with the hole that the conducting ring of fuse canister is provided with, and matches with connecting bolt in inside; Coupling nut one end is connected with the conducting ring of fuse canister, and the other end is connected with binding post.
6, gas-filled type combination sideboard earthing device according to claim 5 is characterized in that, the hole that the conducting ring of fuse canister is provided with is located on the position with the leading-out wire sleeve end symmetry of fuse canister.
7, a kind of gas-filled type combination sideboard is characterized in that, described gas-filled type combination sideboard comprises the arbitrary described gas-filled type combination sideboard earthing device of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106130U CN201393005Y (en) | 2009-03-11 | 2009-03-11 | Inflatable combined cabinet grounding device and inflatable combined cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106130U CN201393005Y (en) | 2009-03-11 | 2009-03-11 | Inflatable combined cabinet grounding device and inflatable combined cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201393005Y true CN201393005Y (en) | 2010-01-27 |
Family
ID=41599826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106130U Expired - Lifetime CN201393005Y (en) | 2009-03-11 | 2009-03-11 | Inflatable combined cabinet grounding device and inflatable combined cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201393005Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186352A (en) * | 2015-10-23 | 2015-12-23 | 北海银河开关设备有限公司 | Outside transversely arranged high-voltage switches and fuse protector combined air tank |
-
2009
- 2009-03-11 CN CN200920106130U patent/CN201393005Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186352A (en) * | 2015-10-23 | 2015-12-23 | 北海银河开关设备有限公司 | Outside transversely arranged high-voltage switches and fuse protector combined air tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100127 |
|
| CX01 | Expiry of patent term |