CN2319914Y - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN2319914Y CN2319914Y CN 97247757 CN97247757U CN2319914Y CN 2319914 Y CN2319914 Y CN 2319914Y CN 97247757 CN97247757 CN 97247757 CN 97247757 U CN97247757 U CN 97247757U CN 2319914 Y CN2319914 Y CN 2319914Y
- Authority
- CN
- China
- Prior art keywords
- vacuum
- bellows
- display list
- vacuum circuit
- vacuum degree
- 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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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a high-voltage switching device, composed of a housing frame, an operating mechanism, a vacuum arc-extinguishing chamber, etc., wherein, a vacuum detecting and alarming device is arranged on the vacuum arc-extinguishing chamber. The utility model has the advantages of on-line display of the vacuum degree in the vacuum arc-extinguishing chamber and advance alarm and improves the efficiency and the safety of on-line operation.
Description
The utility model relates to a kind of high voltage switchgear.
Vacuum circuit-breaker is existing high pressure power and distribution supply cable control appliance of more and more being used widely, its structure is by antinose-dive leg, operating mechanism, vacuum interrupters etc. are partly formed, vacuum interrupter wherein is the operation element of most critical, the height of vacuum degree will directly have influence on the effect of arc extinguishing in its chamber, if vacuum degree descends in the on-line operation, light then influence the break performance of high-voltage appliance switch, heavy then can influence whole high pressure safety for the distribution road, even cause a serious accident, for this reason, the chamber vacuum degree of the vacuum interrupter of on-line operation must regularly adopt the industrial frequency withstand voltage method to measure indirectly after power failure, this causes the loss of power failure on the one hand, also is difficult to avoid the accident that is descended and caused by vacuum level of vacuum arc-quenching chamber in the on-line operation on the other hand.
The purpose of this utility model just is to overcome above-mentioned weak point of the prior art, the vacuum circuit-breaker that the online demonstration vacuum level of vacuum arc-quenching chamber of a kind of energy is provided and reports to the police in advance.
The purpose of this utility model reaches by following measure:
A kind of vacuum circuit-breaker partly is made up of antinose-dive leg, operating mechanism, vacuum interrupter etc., and a vacuum degree detection alarm device is installed on the said vacuum interrupter.
Said vacuum degree detection alarm device comprises a bellows, a spring, a displacement display list, the upper end sealing of said bellows, the lower end connects with the top seal of vacuum interrupter, and communicate with the vacuum interrupter inner chamber, said spring press-cover is between the top panel and vacuum interrupter of bellows, and said displacement display list is installed on the end face of bellows.
Said vacuum degree detection alarm device also comprises a feeler lever and alarm switch, and an end of said feeler lever is installed between the contravention of the end face of bellows and displacement display list, and the other end connects with alarm switch.
Said vacuum degree detection alarm device is a vacuum meter.
Said display list is an amesdial.
The hole of an antidetonation plate is passed at said bellows top.
Compared with prior art, the vacuum circuit-breaker that the utility model provides is owing to be provided with above-mentioned vacuum degree detection alarm device, vacuum degree that can online demonstration vacuum interrupter, and can when vacuum degree drops to a predetermined value, report to the police, the operational effect and the fail safe of circuit have been improved like this, greatly.
Below in conjunction with accompanying drawing the utility model embodiment is elaborated.
Fig. 1 is the example structure sketch.
The utility model vacuum circuit-breaker is by antinose-dive leg 1, operating mechanism 2, vacuum interrupter 3 grades are partly formed, for ease of showing the vacuum degree in the vacuum extinction chamber, one vacuum degree detection alarm device is installed on vacuum interrupter, certainly the easiest method is that a vacuum meter directly is installed thereon, but, the vacuum meter of present application do not install desired precision in view of reaching this, so the utility model adopts the displacement display list to show its vacuum degree, comprise a bellows 4 in the concrete structure, one spring 5, one displacement display list 6, the sealing of bellows upper end, the lower end connects with the top seal of vacuum interrupter, and communicate with the arc control device inner chamber, spring press-cover is between the top panel 7 and vacuum interrupter of bellows, and the displacement display list then is installed on the end face of bellows.In addition, an alarm mechanism is set also, comprises a feeler lever and alarm switch, an end of feeler lever is installed between the contravention of the end face of bellows and displacement display list, and the other end connects with the alarm switch (not shown).Experiment shows that the displacement display list is advisable to adopt an amesdial.In addition, the hole of an antidetonation plate 8 is passed at the top of bellows.
The operation principle and the process of device are as follows: in the on-line operation process, if the indoor vacuum degree of vacuum extinction descends, vacuum degree in the bellows that shin communicates in it descends simultaneously, originally be in the bellows generation deformation that spring balances each other, its end face upwards produces micro displacement thereupon, this micro-displacement can demonstrate its little not variation of level through amesdial, thereby demonstrate the variation of vacuum degree, if vacuum degree drops to a default ring value of facing, then the end face of bellows will make the displacement shake-up alarm switch that the feeler lever of alarm mechanism produces, thereby report to the police.Operating personnel then can be by observing display list with the vacuum degree in the monitoring chamber, so that deal with at any time, with the generation of accident prevention.The effect of antidetonation plate 8 prevents the vibrations of bellows and display list when being to operate.
Claims (6)
1. a vacuum circuit-breaker partly is made up of antinose-dive leg, operating mechanism, vacuum interrupter etc., it is characterized in that: a vacuum degree detection alarm device is installed on the said vacuum interrupter.
2. vacuum circuit-breaker according to claim 1, it is characterized in that: said vacuum degree detection alarm device comprises a bellows, a spring, a displacement display list, the upper end sealing of said bellows, the lower end connects with the top seal of vacuum interrupter, and communicate with the vacuum interrupter inner chamber, said spring press-cover is between the top panel and vacuum interrupter of bellows, and said displacement display list is installed on the end face of bellows.
3. vacuum circuit-breaker according to claim 2, it is characterized in that: said vacuum degree detection alarm device also comprises a feeler lever and alarm switch, one end of said feeler lever is installed between the contravention of the end face of bellows and displacement display list, and the other end connects with alarm switch.
4. vacuum circuit-breaker according to claim 2 is characterized in that: said display list is an amesdial.
5. vacuum circuit-breaker according to claim 2 is characterized in that: the hole of an antidetonation plate is passed at said bellows top.
6. vacuum circuit-breaker according to claim 1 is characterized in that: said vacuum degree detection alarm device is a vacuum meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97247757 CN2319914Y (en) | 1997-11-11 | 1997-11-11 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97247757 CN2319914Y (en) | 1997-11-11 | 1997-11-11 | Vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2319914Y true CN2319914Y (en) | 1999-05-19 |
Family
ID=33955157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97247757 Expired - Fee Related CN2319914Y (en) | 1997-11-11 | 1997-11-11 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2319914Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100377265C (en) * | 2004-12-06 | 2008-03-26 | 三菱电机株式会社 | Switchgear and supporting isolator |
| CN101331573B (en) * | 2005-12-16 | 2012-04-25 | 托马斯及贝茨国际股份有限公司 | Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device |
-
1997
- 1997-11-11 CN CN 97247757 patent/CN2319914Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100377265C (en) * | 2004-12-06 | 2008-03-26 | 三菱电机株式会社 | Switchgear and supporting isolator |
| CN101331573B (en) * | 2005-12-16 | 2012-04-25 | 托马斯及贝茨国际股份有限公司 | Method and apparatus for the detection of high pressure conditions in a vacuum-type electrical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C32 | Full or partial invalidation of patent right | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20060313 Decision number of declaring invalidation: 8155 |