CN203674059U - Pressure-operated load switch - Google Patents
Pressure-operated load switch Download PDFInfo
- Publication number
- CN203674059U CN203674059U CN201420011086.3U CN201420011086U CN203674059U CN 203674059 U CN203674059 U CN 203674059U CN 201420011086 U CN201420011086 U CN 201420011086U CN 203674059 U CN203674059 U CN 203674059U
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- CN
- China
- Prior art keywords
- load switch
- pressure
- fuse
- conductive
- operated load
- 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
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Abstract
The utility model provides a pressure-operated load switch. The pressure-operated load switch is characterized by comprising a frame, a fuse, a conductive device and a tripping mechanism. One end of the frame is connected with a grounding switch, the fuse is connected with the upper surface of the frame via a connecting lever, and the end part of the connecting lever is equipped with the tripping mechanism. The conductive device is connected with the frame via a supporting insulator, and comprises a conductive head and a conductive base, and the conductive base is also connected with the fuse. The above pressure-operated load switch is based on a split structure of the conductive head and the conductive base, possesses a larger contact area, is more wear resistant relative to a conventional moving contact possessing a cusp, and enables the service life to be prolonged. With the connecting lever structure, the overall structure of the load switch is simple, the occupied space is small, the maintenance is convenient, and the cost is saved.
Description
Technical field
The utility model belongs to electric switch field, relates in particular to a kind of on-load switch.
Background technology
In high-tension electricity transmission, carry out insulating power supply, to ensure the reliable and safety of electric power transfer, present spacer assembly usually adopts disconnecting link, but in the time of switch moment separating brake, often produce electric arc, if arc extinguishing not in time, easily cause security incident, and disconnecting link volume is large, takes up room large, and easily damage, not easy-maintaining, uses very uneconomical.On-load switch is a kind of with simple arc-control device, can cut-off and the switch of pass and rated load electric current.On-load switch has certain arc extinguishing ability, can be used to rise break and close load current and the overload current that is less than certain multiple; Also can be used for cut-offfing and close composition and division in a proportion isolating switch and allow the larger no-load transformer of capacity, pressure-operated load switch utilizes the relative motion in interrupting process of piston and cylinder by air compressing, to recycle compressed air and the on-load switch of blow-out.Pressure-operated load switch conventionally can produce electric arc at present in the time of separating brake, and the high temperature that electric arc produces has larger infringement to the isolation knife moving contact of on-load switch, easily ablation isolation knife moving contact, the useful life of shortening on-load switch.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of long service life, safe and reliable pressure-operated load switch.
The utility model for the taked technical scheme that achieves the above object is:
A kind of pressure-operated load switch, it is characterized in that comprising framework, fuse, electric installation and tripping mechanism, described framework one end is connected with earthed switch, described fuse is connected with frame upper surface by Abduction arm, described Abduction arm end is provided with tripping mechanism, and described electric installation is connected with framework by post insulator.
Described electric installation comprises conductive head and conductive seat, and described conductive seat is also connected with fuse.
The beneficial effects of the utility model are: above-mentioned pressure-operated load switch adopts the structure of conductive head and conductive seat split, there is larger contact area, more wear-resisting with respect to traditional moving contact with cusp, extend the useful life of on-load switch, adopt Abduction arm configuration, make on-load switch overall structure simple, take up room little, and convenient for maintaining, provide cost savings.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1-framework, 2-fuse, 3-electric installation, 4-tripping mechanism, 5-earthed switch, 6-Abduction arm, 7-post insulator, 8-conductive head, 9-conductive seat.
Embodiment
For further understanding content of the present utility model, Characteristic, hereby exemplify embodiment and be described with reference to the accompanying drawings as follows:
A kind of pressure-operated load switch, comprise framework 1, fuse 2, electric installation 3 and tripping mechanism 4, framework 1 one end is connected with earthed switch 5, fuse 2 is connected with framework 1 upper surface by Abduction arm 6, Abduction arm 6 ends are provided with tripping mechanism 4, electric installation 3 is connected with framework 1 by post insulator 7, and electric installation 3 comprises conductive head 8 and conductive seat 9, and conductive seat 9 is also connected with fuse 2.
Above embodiment of the present utility model is elaborated, but described content is only preferred embodiments of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variation and improvement etc. of doing according to the utility model application range, within all should still belonging to patent covering scope of the present utility model.
Claims (2)
1. a pressure-operated load switch, it is characterized in that comprising framework (1), fuse (2), electric installation (3) and tripping mechanism (4), described framework (1) one end is connected with earthed switch (5), described fuse (2) is connected with framework (1) upper surface by Abduction arm (6), described Abduction arm (6) end is provided with tripping mechanism (4), and described electric installation (3) is connected with framework (1) by post insulator (7).
2. a kind of pressure-operated load switch as claimed in claim 1, is characterized in that described electric installation (3) comprises conductive head (8) and conductive seat (9), and described conductive seat (9) is also connected with fuse (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011086.3U CN203674059U (en) | 2014-01-04 | 2014-01-04 | Pressure-operated load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011086.3U CN203674059U (en) | 2014-01-04 | 2014-01-04 | Pressure-operated load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674059U true CN203674059U (en) | 2014-06-25 |
Family
ID=50970326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011086.3U Expired - Fee Related CN203674059U (en) | 2014-01-04 | 2014-01-04 | Pressure-operated load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674059U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590777A (en) * | 2016-02-17 | 2016-05-18 | 成都佳美嘉科技有限公司 | Outdoor load switch |
| CN105609358A (en) * | 2016-02-16 | 2016-05-25 | 成都格瑞思文化传播有限公司 | Disconnecting switch |
-
2014
- 2014-01-04 CN CN201420011086.3U patent/CN203674059U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609358A (en) * | 2016-02-16 | 2016-05-25 | 成都格瑞思文化传播有限公司 | Disconnecting switch |
| CN105590777A (en) * | 2016-02-17 | 2016-05-18 | 成都佳美嘉科技有限公司 | Outdoor load switch |
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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: 20140625 Termination date: 20150104 |
|
| EXPY | Termination of patent right or utility model |