CN201804718U - Static contact - Google Patents
Static contact Download PDFInfo
- Publication number
- CN201804718U CN201804718U CN2010205613733U CN201020561373U CN201804718U CN 201804718 U CN201804718 U CN 201804718U CN 2010205613733 U CN2010205613733 U CN 2010205613733U CN 201020561373 U CN201020561373 U CN 201020561373U CN 201804718 U CN201804718 U CN 201804718U
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- barrel
- epimere
- section
- static contact
- 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
Images
Abstract
The utility model discloses a static contact, which comprises a hollow cylindrical barrel. The barrel is divided into an upper-section barrel and a lower-section barrel, the upper-section and lower-section barrel bodies have the same center axis, the inner diameter of the upper-section barrel is larger than that of the lower-section barrel, and the upper-section barrel is higher than the lower-section barrel. The static contact has the advantages that the static contact can prevent generating electric arcs together with a moving contact so that the service life of the static contact is prolonged, further can guarantee safety transmission of high-voltage power distribution, greatly increases power supply reliability, and reduces electric energy loss of the high-voltage power distribution during transmission.
Description
Technical field
The utility model relates to the accessory of power equipment, is a kind of fixed contact specifically.
Background technology
Fixed contact generally is used on the isolating switch, isolating switch is to use maximum a kind of electrical equipment in the high-voltage switch electric appliance, it plays buffer action in circuit, because the isolating switch use amount is big, functional reliability requires high, and is all bigger to the influence of design, foundation and the safe operation of electric substation, power plant.The main feature of isolating switch is no arc extinguishing ability, can only not have to divide under the situation of load current, close circuit.Because in the moment of switch folding, can produce electric arc between fixed contact and the moving contact, frequent switch closure, fixed contact is damaged easily, reduce its useful life, and can badly influence the fail safe of high voltage power distribution, for the fail safe that improves high voltage power distribution just needs often to change fixed contact, therefore increased cost virtually.
The utility model content
Goal of the invention: at above-mentioned technical problem, the purpose of this utility model is for a kind of security performance height, fixed contact that arc extinguishing is good are provided.
Technical scheme: in order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of fixed contact, comprise the hollow cylindrical cylindrical shell, described cylindrical shell is divided into epimere cylindrical shell and hypomere cylindrical shell, the epimere cylindrical shell has the internal diameter of the internal diameter of identical central axis and epimere cylindrical shell greater than the hypomere cylindrical shell with the hypomere cylindrical shell, and the height of epimere cylindrical shell is higher than the height of hypomere cylindrical shell.
The medial and lateral of described epimere cylindrical shell upper mouth are equipped with chamfering.
The internal diameter of described epimere cylindrical shell is 2.1～2.8 with the ratio of the internal diameter of described hypomere cylindrical shell.
The height of described epimere cylindrical shell is 1.05～4.7 with the ratio of the height of described hypomere cylindrical shell.
Beneficial effect: compared with prior art, the utility model has the advantages that: can prevent that fixed contact and moving contact from producing electric arc, improve its useful life, can also guarantee the safe transport of high voltage power distribution, improve power supply reliability greatly, reduce the electric energy loss of high voltage power distribution in course of conveying.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection range of the present utility model.
As shown in drawings, a kind of fixed contact of the utility model, comprise the hollow cylindrical cylindrical shell, described cylindrical shell is divided into epimere cylindrical shell 1 and hypomere cylindrical shell 2, epimere cylindrical shell 1 has the internal diameter of the internal diameter of identical central axis and epimere cylindrical shell 1 greater than hypomere cylindrical shell 2 with hypomere cylindrical shell 2, and the height of epimere cylindrical shell 1 is higher than the height of hypomere cylindrical shell 2; Upper mouth medial and lateral at epimere cylindrical shell 1 are equipped with chamfering.
According to actual needs, the structure of fixed contact as mentioned above, the different size of being, when the electric current that is passed through not simultaneously, its size also changes thereupon.
When rated voltage was 630A-1250A, the external diameter of cylindrical shell was 35cm, and the internal diameter of epimere cylindrical shell 1 is 24cm, and the internal diameter of hypomere cylindrical shell 2 is 11cm, and the height of epimere cylindrical shell 1 is 37-47cm, and the height of hypomere cylindrical shell 2 is 35cm; The chamfering in the upper mouth outside of epimere cylindrical shell 1 is 12 °.
When rated voltage was 1250A-1600A, the external diameter of cylindrical shell was 49cm, and the internal diameter of epimere cylindrical shell 1 is 30cm, and the internal diameter of hypomere cylindrical shell 2 is 11cm, and the height of epimere cylindrical shell 1 is 37-47cm, and the height of hypomere cylindrical shell 2 is 35cm; The chamfering in the upper mouth of epimere cylindrical shell 1 outside is that 12 °, the radius of inboard chamfering are 1.5cm.
When rated voltage was 1600A-2000A, the external diameter of cylindrical shell was 79cm, and the internal diameter of epimere cylindrical shell 1 is 59cm, and the internal diameter of hypomere cylindrical shell 2 is 22cm, and the height of epimere cylindrical shell 1 is 84cm, and the height of hypomere cylindrical shell 2 is 18cm; The chamfering in the upper mouth outside of epimere cylindrical shell 1 is 12 °.
From top numerical value as can be seen, along with the increase of rated current, the external diameter of cylindrical shell increases gradually, and the height of epimere cylindrical shell increases gradually, and the height of hypomere cylindrical shell reduces gradually.
Claims (4)
1. fixed contact, it is characterized in that, comprise the hollow cylindrical cylindrical shell, described cylindrical shell is divided into epimere cylindrical shell (1) and hypomere cylindrical shell (2), epimere cylindrical shell (1) has the internal diameter of the internal diameter of identical central axis and epimere cylindrical shell (1) greater than hypomere cylindrical shell (2) with hypomere cylindrical shell (2), and the height of epimere cylindrical shell (1) is higher than the height of hypomere cylindrical shell (2).
2. a kind of fixed contact according to claim 1 is characterized in that, the medial and lateral of described epimere cylindrical shell (1) upper mouth are equipped with chamfering.
3. a kind of fixed contact according to claim 1 is characterized in that, the ratio of the internal diameter of the internal diameter of described epimere cylindrical shell (1) and described hypomere cylindrical shell (2) is 2.1～2.8.
4. a kind of fixed contact according to claim 1 is characterized in that, the ratio of the height of the height of described epimere cylindrical shell (1) and described hypomere cylindrical shell (2) is 1.05～4.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205613733U CN201804718U (en) | 2010-10-14 | 2010-10-14 | Static contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205613733U CN201804718U (en) | 2010-10-14 | 2010-10-14 | Static contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804718U true CN201804718U (en) | 2011-04-20 |
Family
ID=43874222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205613733U Expired - Fee Related CN201804718U (en) | 2010-10-14 | 2010-10-14 | Static contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950698A (en) * | 2010-10-14 | 2011-01-19 | 句容市华通电器有限公司 | Fixed contact |
-
2010
- 2010-10-14 CN CN2010205613733U patent/CN201804718U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950698A (en) * | 2010-10-14 | 2011-01-19 | 句容市华通电器有限公司 | Fixed contact |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200737643A (en) | Direct-current power storage apparatus | |
| CN202275787U (en) | Three-fracture series type high voltage DC breaker | |
| CN202025628U (en) | Low-voltage radially dual-split on-load regulating transformer | |
| CN101950697B (en) | Fixed contact | |
| CN103050255A (en) | High-capacity double-generator transformer with function of low voltage radial splitting | |
| CN201804718U (en) | Static contact | |
| CN204884830U (en) | Sealed on -load voltage regulation power transformer | |
| CN101950698A (en) | Fixed contact | |
| CN201812685U (en) | Static contact | |
| CN201509072U (en) | Protection device capable of preventing vacuum circuit breaker from producing cut-off overvoltage and arc restriking overvoltage | |
| CN207565514U (en) | Electric vehicle and its high-voltage control circuit | |
| CN204886390U (en) | High pressure dual power supply's wiring circuit | |
| CN204088233U (en) | Primary cut-out flange connector | |
| CN202840673U (en) | Double power switch control system | |
| CN203218205U (en) | Novel fall-off type fuse protector fuse wire | |
| CN101986500A (en) | Flexible adjustment device for 10KV capacitor | |
| CN201717218U (en) | High-voltage current-limiting full range fuse for protection of transformer | |
| CN202534580U (en) | Vacuum switch reignition limiter | |
| CN202949208U (en) | Voltage-loss protector | |
| CN201937272U (en) | Novel high-voltage reactive power automatic compensation device | |
| CN204088222U (en) | The housing of primary cut-out | |
| CN204794733U (en) | Invertion power supply's supply circuit and have its domestic appliance | |
| CN103050256A (en) | High-voltage strip coarse-fine voltage adjusting power transformer | |
| CN202997577U (en) | High-voltage line reactive automatic compensation device | |
| CN202977146U (en) | Single-phase superhigh-voltage large-capacity off-circuit-regulation alternating current step-up transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20111014 |