CN207719708U - Box fixed ac metal closing switch gear - Google Patents
Box fixed ac metal closing switch gear Download PDFInfo
- Publication number
- CN207719708U CN207719708U CN201721802624.0U CN201721802624U CN207719708U CN 207719708 U CN207719708 U CN 207719708U CN 201721802624 U CN201721802624 U CN 201721802624U CN 207719708 U CN207719708 U CN 207719708U
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- CN
- China
- Prior art keywords
- disconnecting switch
- busbar
- cabinet
- branch
- breaker
- 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.)
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Abstract
The utility model is related to a kind of box fixed ac metal closing switch gears, including cabinet, breaker, busbar, cable, low-voltage electrical apparatus instrument, disconnecting switch, current transformer and operating mechanism, disconnecting switch include upper disconnecting switch and lower disconnecting switch；The vertical arrangement installation from top to bottom in cabinet of mainly upper disconnecting switch, breaker, current transformer, lower disconnecting switch；Operating mechanism is mounted on the side of cabinet, and handle end connection upper connecting rod and lower link, upper connecting rod are connect with upper disconnecting switch moving contact, and lower link is connect with the moving contact of lower disconnecting switch；Automatic earthing device is equipped on lower link.With small, security performance height, good environmental protection is suitable for urban residential quarters and uses.
Description
Technical field
The utility model is related to a kind of switchgear, in particular to a kind of AC metal closed switch of box fixation
Equipment.
Background technology
Currently, small box fixed ac metal closing switch gear in the market, mainly to fill based on SF6 gases
Gas-insulated switchgear, primary circuit equipment is entirely encapsulated in SF6 gas compartments, or on-load switch is encapsulated in
In SF6 gas compartments, there is good insulation and arc extinction performance.But there are prodigious shortcomings for SF6 gases：Although first, SF6
It is nontoxic, but density is big, and not easily dilutable and diffusion is a kind of suffocating substance, and staff is be easy to cause when failure leaks and is lacked
Oxygen, Poisoning choke；Second is that SF6 gases can decomposite SOF2 when generating corona discharge in the electric field（It is fluorinated thionyl）、SO2F2
（It is fluorinated sulfonyl）、S2F10（Ten two sulphur of fluorination）、SO2（Sulphur dioxide）、S2F2（Sulfur fluoride）、HF（Hydrofluoric acid）Etc. nearly ten kinds gases,
These fluorine, sulfide gas have toxicity, and wherein S2F10 also has hypertoxicity and corrosivity, to aluminium alloy, porcelain insulator, glass
The insulating materials such as glass epoxy resin generate stronger corrosion, damage their structure, influence insulation performance, and to human body and breathing
System has the stimulation and toxic action arranged by force.These disadvantages of SF6 gases constitute SF6 electrical equipments in terms of security protection
Main problem, do not meet safety and the environmental requirement of urban residential quarters power supplying and distributing equipment.
Invention content
The purpose of this utility model is in view of the deficienciess of the prior art, offer one kind is small, equipment is safe to use
The box fixed ac metal closing switch gear of environmental protection.
The technical solution of the utility model include cabinet, breaker, busbar, cable, low-voltage electrical apparatus instrument, disconnecting switch,
Current transformer and operating mechanism, busbar include main bus-bar, branch bar and branch's busbar, and disconnecting switch includes upper disconnecting switch
It is connect with main bus-bar by branch bar with the upper static contact of lower disconnecting switch, upper disconnecting switch；Mainly upper disconnecting switch is broken
The vertical arrangement installation from top to bottom in cabinet of road device, current transformer, lower disconnecting switch, the lower static contact of upper disconnecting switch are logical
The upper end for crossing branch's busbar and breaker connects, and the lower end of breaker is connect by branch's busbar with current transformer end of incoming cables,
Current transformer leading-out terminal is connect by branch's busbar with the upper static contact of lower disconnecting switch, the lower static contact of lower disconnecting switch with
Cable connection；Operating mechanism is mounted on the side of cabinet, and handle end connection upper connecting rod and lower link, upper connecting rod are isolated on
Switch movable contact connects, and lower link is connect with the moving contact of lower disconnecting switch；Automatic earthing device is equipped on lower link, it is described
Automatic earthing device is made of rocking bar and ground connection connecting rod, is resiliently mounted on lower link by torsional spring in the middle part of rocking bar, an end
Hinged with ground connection connecting rod, another end is located at the downside of cabinet conductive plate.
The utility model has the advantages that small, security performance is high, and good environmental protection makes suitable for urban residential quarters
With.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
Box fixed ac metal closing switch gear as shown in Figure 1, including cabinet 1, breaker 8, busbar, cable,
Low-voltage electrical apparatus instrument, disconnecting switch, current transformer 6 and operating mechanism 9, busbar include main bus-bar, branch bar 12 and branch
Busbar 7, disconnecting switch include upper disconnecting switch 11 and lower disconnecting switch 4, and the upper static contact of upper disconnecting switch 11 passes through branch mother
Line 12 is connect with main bus-bar；Upper disconnecting switch 11, breaker 8, current transformer 6, lower disconnecting switch 4 are arranged vertically from top to bottom
In cabinet 1, the installation floor space of equipment is reduced, is suitable for the power supplying and distributing equipment of city neighborhood, above keeps apart
The lower static contact of pass 11 is connect by branch's busbar with the upper end of breaker 8, and the lower end of breaker 8 passes through branch's busbar and electric current
6 end of incoming cables of mutual inductor connects, and 6 leading-out terminal of current transformer is connect by branch's busbar with the upper static contact of lower disconnecting switch 4, under
The lower static contact and cable connection of disconnecting switch 4, upper disconnecting switch 11, breaker 8, current transformer 6, lower disconnecting switch 4
Shell is mounted on by insulating base in cabinet 1；Operating mechanism 9 is mounted on the side of cabinet 1, and handle is connected by drive link respectively
Connecting rod 10 and lower link 5 are connected, upper connecting rod 10 is connect with 11 moving contact of upper disconnecting switch, and lower link 5 is dynamic with lower disconnecting switch 4
Contact connects；Automatic earthing device is equipped on lower link 5, the automatic earthing device is by rocking bar 13 and 14 groups of connecting rod of ground connection
At 13 middle part of rocking bar is resiliently mounted on by torsional spring on lower link 5, and an end and ground connection connecting rod 14 are hinged, another end
Positioned at the downside of cabinet conductive plate 15, cabinet 1 is grounded while disconnecting switch 4 under disconnection, protection maintenance or maintenance personnel
Safety.Cabinet 1 is equipped with front door 2 and back door 3.
When maintenance or power failure operation, the padlock in operating mechanism 9 is opened, will be grasped by manual or electronic separately breaker 8
Make the handle in mechanism 9 and pull " disjunction " position, keeps apart being driven by upper connecting rod 10 in operation handle insertion operation mechanism 9
11 separating brakes are closed, 4 separating brake of lower disconnecting switch is driven by lower link 5, automatic earthing device is by 1 automatic earthing of cabinet, then will operate
Handle in mechanism 9 pulls " maintenance " position, maintenance of opening the door.When maintenance finishes power transmission, back door 3 and front door 2 are shut, it is separately disconnected
Road device 8 opens the padlock in operating mechanism 9, and the handle in operating mechanism 9 is pulled " disjunction " position, and operation handle is inserted into and is grasped
Make to drive lower disconnecting switch 4 to close a floodgate by lower link 5 in the handle hole of mechanism 9, upper disconnecting switch 11 is driven by upper connecting rod 10
Close a floodgate, then the handle in operating mechanism 9 pulled into " work " position, it is manual or it is electronic close breaker 8, will be in operating mechanism 9
Padlock lock, power transmission terminates.
Claims (1)
1. a kind of box fixed ac metal closing switch gear, including cabinet（1）, breaker（8）, busbar, cable, low tension
Instruments and meters, disconnecting switch, current transformer（6）And operating mechanism（9）, busbar includes main bus-bar, branch bar（12）And branch
Busbar（7）, disconnecting switch includes upper disconnecting switch（11）With lower disconnecting switch（4）, upper disconnecting switch（11）Upper static contact it is logical
Cross branch bar（12）It is connect with main bus-bar；It is characterized in that upper disconnecting switch（11）, breaker（8）, current transformer（6）, under
Disconnecting switch（4）Vertical arrangement is mounted on cabinet from top to bottom（1）It is interior, upper disconnecting switch（11）Lower static contact to pass through branch female
Row and breaker（8）Upper end connection, breaker（8）Lower end pass through branch's busbar and current transformer（6）End of incoming cables connects,
Current transformer（6）Leading-out terminal passes through branch's busbar and lower disconnecting switch（4）Upper static contact connection, lower disconnecting switch（4）'s
Lower static contact and cable connection；Operating mechanism（9）Mounted on cabinet（1）Side, handle connected by drive link respectively
Connecting rod（10）And lower link（5）, upper connecting rod（10）With upper disconnecting switch（11）Moving contact connects, lower link（5）Keep apart under
It closes（4）Moving contact connection；In lower link（5）It is equipped with automatic earthing device, the automatic earthing device is by rocking bar（13）With
It is grounded connecting rod（14）Composition, rocking bar（13）Middle part is resiliently mounted on lower link by torsional spring（5）On, an end and ground connection connecting rod
（14）Hinged, another end is located at cabinet conductive plate（15）Downside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721802624.0U CN207719708U (en) | 2017-12-21 | 2017-12-21 | Box fixed ac metal closing switch gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721802624.0U CN207719708U (en) | 2017-12-21 | 2017-12-21 | Box fixed ac metal closing switch gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207719708U true CN207719708U (en) | 2018-08-10 |
Family
ID=63056864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721802624.0U Active CN207719708U (en) | 2017-12-21 | 2017-12-21 | Box fixed ac metal closing switch gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207719708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838423A (en) * | 2018-08-16 | 2020-02-25 | 铁路电力系统股份有限公司 | Voltage limiting device |
| CN115275855A (en) * | 2022-08-09 | 2022-11-01 | 黄华集团有限公司 | Air insulation looped netowrk cabinet |
-
2017
- 2017-12-21 CN CN201721802624.0U patent/CN207719708U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838423A (en) * | 2018-08-16 | 2020-02-25 | 铁路电力系统股份有限公司 | Voltage limiting device |
| US11417488B2 (en) | 2018-08-16 | 2022-08-16 | Rail Power Systems Gmbh | Voltage limiting device |
| CN115275855A (en) * | 2022-08-09 | 2022-11-01 | 黄华集团有限公司 | Air insulation looped netowrk cabinet |
| CN115275855B (en) * | 2022-08-09 | 2024-03-26 | 黄华集团有限公司 | Air insulation ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |