CN205609463U - A a shielding formula fuse section of thick bamboo for solid insulation combined electrical apparatus cabinet - Google Patents
A a shielding formula fuse section of thick bamboo for solid insulation combined electrical apparatus cabinet Download PDFInfo
- Publication number
- CN205609463U CN205609463U CN201620199152.3U CN201620199152U CN205609463U CN 205609463 U CN205609463 U CN 205609463U CN 201620199152 U CN201620199152 U CN 201620199152U CN 205609463 U CN205609463 U CN 205609463U
- Authority
- CN
- China
- Prior art keywords
- electrical apparatus
- combined electrical
- solid insulation
- apparatus cabinet
- fuse
- 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 - Fee Related
Links
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses a shielding formula fuse section of thick bamboo for solid insulation combined electrical apparatus cabinet. It includes the barrel and is used for the end cap of shutoff at the barrel open end, be provided with the joint on the barrel, the barrel includes the major insulation layer, shield layer and winding pipe, be provided with inside conductively connected parts and outside conductively connected parts in the barrel, the end cap includes the pouring piece, electrically conductive supporting seat and dropout subassembly, install the fuse in the barrel, the one end and the inside conductively connected parts of fuse are connected, the other one end and the electrically conductive support connection of fuse, the winding union coupling is between inside conductively connected parts and outside conductively connected parts, inside conductively connected parts and one of them articulate, electrically conductive supporting seat and outside conductively connected parts contact back and another one articulate. After adopting foretell structure, the reasonable compactness of its structural design, the installation is maintained conveniently, the operation is reliable, has solved the reliability problem of fuse installation in the solid insulation combined electrical apparatus cabinet well.
Description
Technical field
This utility model relates to a kind of fuse unit, a kind of protected type fuse unit for solid insulation combined electrical apparatus cabinet, belongs to high-voltage switch gear technical field of electric equipment.
Background technology
At present, China's urban electricity supply network mainly uses ring network power supply pattern, and ring network power supply pattern can provide power supply reliability to power consumer, reduces electric power accident impact.Traditional ring main unit mainly uses air insulation and SF6 gas-insulated, and along with the development of national economy, power consumer is more and more higher to the requirement of power supply quality and environmental issue, and the anti-pollution ability of air insulation ring main unit is weak, and big problem affected by environment highlights day by day；Although and SF6 gas has good arc extinguishing and insulating properties, ring main unit can being made to realize miniaturization, but SF6 gas is one of internationally recognized six kinds of greenhouse gases, it is that balance of plant requirement limits use or no gas.The most in the last few years, many research institutions and manufacturing firm are just at developmental research solid insulation combined electrical apparatus cabinet, main employing epoxy resin and silicone rubber are as insulant, element insulating layer outer surface ground shield so that the volume of ring main unit more miniaturization.But as the mounting means of fuse in the combined electrical apparatus cabinet with fuse of tranformer protection; many employing fuse unit mounting means; in order to reduce the size of product in design; must the size of fuse unit do the least; add the complicated structure of fixing fuse within fuse unit; when causing actual motion, partial discharge quantity is higher, usually affects the insulating properties of fuse unit；If additionally this structure particularly seals in fuse unit end and bad is easy to Discharge Phenomena, ultimately result in insulation breakdown, affect the properly functioning of whole switchgear.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of simple in construction, easy for installation, the reliable protected type fuse unit for solid insulation combined electrical apparatus cabinet.
nullIn order to solve above-mentioned technical problem，Protected type fuse unit for solid insulation combined electrical apparatus cabinet of the present utility model，Including one end open，Cylinder that other end is closed and for closure at the plug of cartridge openings end，The joint of two pyramidal structures it is provided with on cylinder，Cylinder includes main insulating layer，It is arranged on the ground shield of main insulating layer outer surface and is arranged on the winding pipe of main insulating layer inner surface，The inner conductive connector being positioned at blind end and the external conductive connector being positioned on opening sidewall it is provided with in cylinder，Plug includes pouring piece，It is arranged on the anterior conductive supporting seat of pouring piece and is arranged on the trip assembley therefor at pouring piece rear portion，Fuse is installed in cylinder，One end of fuse is connected with inner conductive connector，The other end of fuse is connected with conductive supporting seat，Winding pipe is connected between inner conductive connector and external conductive connector，Inner conductive connector connects conductor through No. one and is connected with one of them joint，Conductive supporting seat connects conductor through No. two after contacting with external conductive connector and is connected with another one joint.
Being provided with inside contact seat folder on described inner conductive connector, described conductive supporting seat is provided with external contacts seat folder, the internal plug of fuse is inserted in inside contact seat folder, and the external plug of fuse is inserted in external contacts seat folder.
Described ground shield is made up of epoxy resin or silastic material.
Described main insulating layer is made up of epoxy resin or silastic material.
Described winding pipe is made up of semiconductor insulating material.
Described pouring piece is poured into a mould by epoxy or silicone rubber and is formed.
Two the snap close pins being positioned at open end and the anchor ear arranged along cylinder circumferencial direction it is provided with on described cylinder.
The dielectrical loss angle tangent value (tg δ) of described winding pipe is when 20 DEG C less than 0.8%, and less than 1% when 90 DEG C, dielectric constant is less than 4, and the strongest amount is all not less than 5MV/m vertical with layer with layer parallel direction.
After using above-mentioned structure, due to the cylinder being made up of ground shield, main insulating layer and winding pipe, inner conductor etc. arranged and for blocking the plug at cartridge openings end, thus can be directly installed in cylinder by fuse, on the one hand the insulating properties of winding pipe may insure that the winding pipe of fuse unit two ends leakage current while bearing recovery voltage after fuse disconnects can control within allowed band；Another further aspect winding pipe also has certain electric conductivity, therefore so that fuse unit winding pipe two ends and fuse-carrier connect forms the equipotentiality body that current potential is equal, optimizes the internal electric field of fuse unit, plays all pressure effects, can eliminate or slacken partial discharge quantity；Its reasonable in design is compact, convenient for installation and maintenance, reliable, solves the integrity problem that in solid insulation combined electrical apparatus cabinet, fuse is installed well.
Accompanying drawing explanation
Fig. 1 is this utility model cross-sectional view for the protected type fuse unit of solid insulation combined electrical apparatus cabinet；
Fig. 2 is plug cross-sectional view in this utility model；
Fig. 3 is this utility model installment state structural representation for the protected type fuse unit of solid insulation combined electrical apparatus cabinet.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, the protected type fuse unit for solid insulation combined electrical apparatus cabinet of the present utility model is described in further detail.
As shown in the figure, protected type fuse unit for solid insulation combined electrical apparatus cabinet of the present utility model, including one end open, cylinder 1 that other end is closed and for closure at the plug 5 of cartridge openings end, the joint of two pyramidal structures it is provided with on cylinder 1, described joint can be according to the outer wimble structure of the cable inner cone needing standard of making of external equipment or cable, it is easy to the connection with external equipment, connected mode is industry accreditation and the commonly used structure identical with cabled manner, convenient for installation and maintenance, reliability is high；Cylinder 1 includes main insulating layer 202, it is arranged on the ground shield 201 of main insulating layer 202 outer surface and is arranged on the winding pipe 203 of main insulating layer 202 inner surface, the inner conductive connector 403 being positioned at blind end and the external conductive connector 404 being positioned on opening sidewall it is provided with in cylinder 1, plug 5 includes pouring piece 502, it is arranged on the anterior conductive supporting seat 501 of pouring piece and is arranged on the trip assembley therefor 503 at pouring piece rear portion, described conductive supporting seat 501 is machine-shaping before cast, the arc structure that profile machined layer is big, it is possible not only to play conductive supporting effect, and may also operate as all pressing shielding action, improve the internal electric field distribution of this part；Pouring piece 502 is poured into a mould by epoxy or silicone rubber and is formed；nullFuse 7 is installed in cylinder 1，Inside contact seat folder 6 is installed on inner conductive connector 403，The internal plug 701 of fuse 7 is inserted in inside contact seat folder 6，External contacts seat folder 8 is installed on conductive supporting seat 501，The external plug 702 of fuse 7 is inserted in external contacts seat folder 8，So that one end of fuse 7 is connected with inner conductive connector 403，The other end of fuse 7 is connected with conductive supporting seat 501，Winding pipe 203 is connected between inner conductive connector 403 and external conductive connector 404，Inner conductive connector 403 connects conductor 402 through No. one and is connected with the conducting end 401 of one of them joint，Conductive supporting seat 501 connects conductor 405 through No. two after contacting with external conductive connector 404 and is connected with the conducting end 406 of another one joint.
Wherein, ground shield 201 is made up of epoxy resin or the silastic material etc. with electric conductivity, serves the effect of insulation shielding, reaches fuse unit outer surface tangible, effect non-maintaining in operation, thus improves the operational reliability of product；nullMain insulating layer 202 is made up of the epoxy resin or silastic material with insulating properties，Play isolation high-pressure conductive parts and earth point effect，Insulating properties are reliable，Of particular note winding pipe 203 is made up of semiconductor insulating material，The semi-conducting material that specifically winding pipe 203 is impregnated through vacuum casting process supercharging by polyester plastics band winding interpolation filler is made，This semiconductor insulating material is less than 0.8% when meeting dielectrical loss angle tangent value (tg δ) 20 DEG C，Less than 1% when 90 DEG C，Dielectric constant is less than 4，The strongest amount is in the general requirement that with layer parallel direction be all not less than 5MV/m vertical with layer，Therefore winding pipe 203 is not only to have insulating properties but also have the semiconducting insulation cylinder of electric conductivity，The insulation resistance of winding pipe can be changed by the proportional components of regulation filler，It is made to have required insulation and semiconductive performance.
It can further be stated that the material of pouring piece (insulator) 502 depends on the material of main insulating layer 202；If insulating barrier 202 selects silastic material, then the optional epoxy resin of insulator 502, otherwise, if insulating barrier 202 selects epoxide resin material, then the optional silicone rubber of insulator 502, the bi-material of " soft hard " can ensure that seal between the two reliable.
Yet further, described cylinder 1 is provided with two the snap close pins 204 being positioned at open end and the anchor ear 205 arranged along cylinder 1 circumferencial direction, it can be ensured that plug reliably blocks, discharge off gap.
Claims (8)
- null1. the protected type fuse unit for solid insulation combined electrical apparatus cabinet，It is characterized in that: include one end open，Cylinder (1) that other end is closed and for closure at the plug (5) of cartridge openings end，The joint of two pyramidal structures it is provided with on described cylinder (1)，Described cylinder (1) includes main insulating layer (202)，It is arranged on the ground shield (201) of main insulating layer (202) outer surface and is arranged on the winding pipe (203) of main insulating layer (202) inner surface，The inner conductive connector (403) being positioned at blind end and the external conductive connector (404) being positioned on opening sidewall it is provided with in described cylinder (1)，Described plug (5) includes pouring piece (502)，It is arranged on the anterior conductive supporting seat (501) of pouring piece and is arranged on the trip assembley therefor (503) at pouring piece rear portion，Fuse (7) is installed in described cylinder (1)，One end of described fuse (7) is connected with inner conductive connector (403)，The other end of fuse (7) is connected with conductive supporting seat (501)，Described winding pipe (203) is connected between inner conductive connector (403) and external conductive connector (404)，Described inner conductive connector (403) connects conductor (402) through No. one and is connected with one of them joint，Described conductive supporting seat (501) connects conductor (405) through No. two after contacting with external conductive connector (404) and is connected with another one joint.
- 2. according to the protected type fuse unit for solid insulation combined electrical apparatus cabinet described in claim 1, it is characterized in that: inside contact seat folder (6) is installed on described inner conductive connector (403), external contacts seat folder (8) is installed on described conductive supporting seat (501), the internal plug (701) of described fuse (7) is inserted in inside contact seat folder (6), and the external plug (702) of described fuse (7) is inserted in external contacts seat folder (8).
- 3. according to the protected type fuse unit for solid insulation combined electrical apparatus cabinet described in claim 1, it is characterised in that: described ground shield (201) is made up of epoxy resin or silastic material.
- 4. according to the protected type fuse unit for solid insulation combined electrical apparatus cabinet described in claim 1, it is characterised in that: described main insulating layer (202) is made up of epoxy resin or silastic material.
- 5. according to the protected type fuse unit for solid insulation combined electrical apparatus cabinet described in claim 1, it is characterised in that: described winding pipe (203) is made up of semiconductor insulating material.
- 6. according to the protected type fuse unit for solid insulation combined electrical apparatus cabinet described in claim 1, it is characterised in that: described pouring piece (502) is poured into a mould by epoxy or silicone rubber and is formed.
- 7. according to the protected type fuse unit for solid insulation combined electrical apparatus cabinet described in claim 1, it is characterised in that: it is provided with two the snap close pins (204) being positioned at open end and the anchor ear (205) arranged along cylinder (1) circumferencial direction on described cylinder (1).
- 8. according to the protected type fuse unit for solid insulation combined electrical apparatus cabinet described in claim 1 or 5, it is characterized in that: the dielectrical loss angle tangent value of described winding pipe (203) is less than 0.8% when 20 DEG C, less than 1% when 90 DEG C, dielectric constant is less than 4, and the strongest amount is all not less than 5MV/m vertical with layer with layer parallel direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199152.3U CN205609463U (en) | 2016-03-15 | 2016-03-15 | A a shielding formula fuse section of thick bamboo for solid insulation combined electrical apparatus cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199152.3U CN205609463U (en) | 2016-03-15 | 2016-03-15 | A a shielding formula fuse section of thick bamboo for solid insulation combined electrical apparatus cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205609463U true CN205609463U (en) | 2016-09-28 |
Family
ID=56963079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620199152.3U Expired - Fee Related CN205609463U (en) | 2016-03-15 | 2016-03-15 | A a shielding formula fuse section of thick bamboo for solid insulation combined electrical apparatus cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205609463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391118A (en) * | 2019-01-30 | 2019-10-29 | 北京鼎一致远科技发展有限公司 | A kind of enclosed type injecting type high-tension fuse rubber-covered casing |
-
2016
- 2016-03-15 CN CN201620199152.3U patent/CN205609463U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391118A (en) * | 2019-01-30 | 2019-10-29 | 北京鼎一致远科技发展有限公司 | A kind of enclosed type injecting type high-tension fuse rubber-covered casing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201364853Y (en) | Touchable vacuum circuit breaker | |
| CN201708505U (en) | Inner cone bus insulating sleeve | |
| CN203205758U (en) | Solid-state insulation switch device and gas gap insulation structure thereof | |
| CN201247723Y (en) | Maintenance-free and reinforced insulation solid sealed pole | |
| CN202068115U (en) | Circuit breaker cabinet | |
| CN202816779U (en) | Solid insulated pole | |
| WO2020155946A1 (en) | Switchgear trolley provided with lightning arrester and switchgear using same | |
| CN102881508A (en) | Solid insulating pole | |
| CN202502890U (en) | Indoor cabled voltage transformer for electric locomotive | |
| CN205609463U (en) | A a shielding formula fuse section of thick bamboo for solid insulation combined electrical apparatus cabinet | |
| CN102882148B (en) | A kind of solid insulation switch | |
| CN101308725B (en) | Dry-type voltage inductor for metering cart user | |
| CN201788877U (en) | Multi-station high-voltage switch | |
| CN201036153Y (en) | Backbone type bus current mutual inductor | |
| CN202856230U (en) | Solid insulating switch | |
| CN205429555U (en) | Load switch - fuse combined electrical apparatus list phase module | |
| CN102013612B (en) | Manufacture process of sealed terminal board sintered with power insulator | |
| CN205282976U (en) | Aerify cabinet and gu seal utmost point post thereof | |
| CN202871735U (en) | Integrated-pouring solid-insulation fuse apparatus | |
| CN106887362A (en) | A kind of modularization pole and its manufacture method, pole body, joint module | |
| CN206225788U (en) | A kind of contact box device with function of shielding | |
| CN106654869A (en) | Switch cabinet | |
| CN204720379U (en) | Single-phase tangible switch module | |
| CN202434411U (en) | Solid-sealed polar pole of high-voltage vacuum circuit breaker | |
| CN201717518U (en) | Contact box with double-shielding structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |