CN207458798U - A kind of vacuum circuit breaker is opened away from adjuster - Google Patents
A kind of vacuum circuit breaker is opened away from adjuster Download PDFInfo
- Publication number
- CN207458798U CN207458798U CN201720954585.XU CN201720954585U CN207458798U CN 207458798 U CN207458798 U CN 207458798U CN 201720954585 U CN201720954585 U CN 201720954585U CN 207458798 U CN207458798 U CN 207458798U
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- circuit breaker
- vacuum circuit
- conductive rod
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Abstract
The utility model is related to electric utility field, a kind of particularly vacuum circuit breaker is opened away from adjuster.The vacuum circuit breaker includes vacuum interrupter, and vacuum interrupter includes moving contact and static contact, moving contact lower end connection moving conductive rod, and the moving conductive rod other end is connected with Operation switch, and described open is arranged at away from adjuster between moving conductive rod and Operation switch；Described open includes cylindrical adjusting head and connector away from adjuster, and the connector outer surface has external screw thread, and the moving conductive rod lower end has internal thread, and the two can relative rotation；The adjusting head bottom section direction has adjustment hole, and adjusting rod is split to be rotated away from adjuster for being inserted into, and makes connector extended or retracted from moving conductive rod lower end, so as to which change dynamic and static contact opens a sluice gate spacing.The vacuum circuit breaker of the utility model is opened need not unload entire driving mechanism to adjust out away from more convenient away from adjuster when adjusting.Adjusting is opened away from more accurate, so as to add the service life of breaker.
Description
Technical field
The utility model is related to electric utility field, a kind of particularly vacuum circuit breaker is opened away from adjuster.
Background technology
Vacuum circuit breaker is gained the name due to the dielectric of contact gap after its arc-extinguishing medium and arc extinguishing is all high vacuum, tool
Have the advantages that arc extinguishing ability is strong, electrical endurance is long, on-site maintenance is convenient, with high content of technology, in electric system infrastructure and nothing
It is the preferred unit of medium voltage breaker type selecting by Medium Voltage Switchgear extensive use in oiling transformation.Vacuum circuit breaker progressively takes
For oil-break, compared with oil-break, the advantages that vacuum circuit-breaker insulated intensity is high, and arc-rupturing capacity is strong.
The core component of vacuum circuit breaker is vacuum interrupter, and vacuum extinction cell structure is as shown in Figure 1, main components are
Insulation crust 1, static side cover board 2, static contact 4, moving contact 5, bellows 6, shielding case 7, static conductive rod 8, dynamic are led at moved end cover board 3
Electric pole 9 etc., operation principle are：When dynamic and static contact is in separating brake under the action of switch operating mechanism, electric arc is generated between contact,
Contact surface volatilizes steam at high temperature, since contact is designed as special shape, electric current by when generate a magnetic field, electric arc
It is quickly moved along contact surface tangential direction under this magnetic fields, has condensed part metals steaming in metallic cylinder (shielding case)
Vapour, electric arc just extinguish in natural zero-crossing, achieve the effect that the rapid blow-out of energy after cutting off the power and inhibit electric current.
Vacuum interrupter is the heart of vacuum circuit breaker, and dynamic and static contact is the heart of vacuum interrupter.Dynamic and static contact
Using the way of contact of dock, dynamic and static contact open away from（Fig. 1 shows for L）It is the important mechanical ginseng of vacuum interrupter
One of number, depends primarily upon the rated voltage of vacuum circuit breaker and resistance to pressure request, and clearance between open contacts select when general rated voltage is low
It obtains smaller.But breaking capacity and resistance to voltage levels can be influenced away from too small by holding.It opens away from too big, although resistance to voltage levels, meeting can be improved
Decline the ripple tube lifetime of vacuum interrupter.As far as possible opening away from selecting small generally in the case where meeting the resistance to pressure request of operation during design
Some.10kV vacuum circuit breakers are opened away from usually between 8~12mm, 35kV then between 30~40mm.But in vacuum
In the action process of arc-chutes the wear problem of contact can influence dynamic and static contact hold away from.
For three-phase breaker, the synchronisms of three-phase vacuum bubbles is important parameter, the breaker three that switching synchronization represents
Time difference when mutually just closing.If the not same period, it is meant that the energy difference that main shaft passes to three-phase is very big, meets and holds in head conjunctions
By excessive energy, this all has a great impact for the mechanical life of breaker and spring.The three-phase synchronism of breaker can
To be bubbled open by adjusting vacuum away from adjusting, belong to delivery test.The mode that original adjusts dynamic and static clearance between open contacts is to adjust three-phase
Pull rod, due to open away from adjust only in the distance of several millimeters, extremely finely, regulative mode is extremely cumbersome, complicated, time-consuming.
Utility model content
For above deficiency, the utility model provides a kind of vacuum circuit breaker and opens away from adjuster, need to only adjust open away from tune
Section device can easily just adjust dynamic and static clearance between open contacts, so as to achieve the purpose that facilitate adjusting.
The technical solution of the utility model is：
A kind of vacuum circuit breaker is opened away from adjuster, and the vacuum circuit breaker includes vacuum interrupter, the vacuum interrupter
Including moving contact and static contact, the moving contact lower end connects moving conductive rod, the moving conductive rod other end and Operation switch phase
Even, described open is arranged at away from adjuster between moving conductive rod and Operation switch；Described open includes cylindrical adjusting away from adjuster
Head and connector, the connector outer surface have external screw thread, and the moving conductive rod lower end has internal thread, and the two can opposite rotation
Turn；The adjusting head bottom section direction has adjustment hole, and adjusting rod is split to be rotated away from adjuster for being inserted into, and makes connection
Head is extended or retracted from moving conductive rod lower end, so as to which change dynamic and static contact opens a sluice gate spacing.
There are four the adjustment holes.
The adjustment hole is at right angles symmetrical.
The major diameter of external thread of the connector outer surface is 9.53mm, and tooth is away from for 1.06mm.
The vacuum circuit breaker is applied to Medium voltage switch or circuit breaker.
The utility model makes the extended or retracted moving conductive rod lower end of connector by adjusting the radial rotating of head, so as to adjust
The axial length of whole moving conductive rod changes the combined floodgate stroke of moving contact, is finally reached the mesh for the combined floodgate spacing for adjusting dynamic and static contact
's.Entire driving mechanism need not be unloaded when adjusting to adjust out away from more convenient.By opening away from adapter tune
Section is opened away from more accurate, so as to add the service life of breaker, and it is simple in structure, it is easy to use.
Description of the drawings
Fig. 1 is the structure chart of vacuum interrupter；
Fig. 2, which opens to be mounted on vacuum circuit breaker away from adjuster for the utility model, opens a sluice gate state diagram；
Fig. 3 is that the utility model opens the "on" position figure being mounted on away from adjuster on vacuum circuit breaker；
Fig. 4 opens the front view away from adjuster for the utility model；
Fig. 5 opens the bottom view away from adjuster for the utility model.
Specific embodiment
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
With reference to figure 1, Fig. 2 and Fig. 3, vacuum circuit breaker includes vacuum extinction device 10, and the vacuum extinction device 10 includes dynamic touch
First 5 and static contact 4,5 lower end of moving contact connects moving conductive rod 9, and 9 other end of moving conductive rod passes through extension bar and operation
Switch 11 is connected, and the technical solution of the utility model can adjust and open a sluice gate spacing L between moving contact 5, static contact 4.
In order to realize this purpose, the vacuum circuit breaker of the utility model is opened away from adjuster 20, is arranged at moving conductive rod 9 and is extended
Between bar and Operation switch 11, including cylindrical adjusting first 21 and connector 22,22 outer surface of connector has outer spiral shell
Line, 9 lower end of moving conductive rod have internal thread, and the two can relative rotation；The adjusting first 21 bottom section direction, which has, adjusts
Knothole 23, adjusting rod is split to be rotated away from adjuster 20 for being inserted into, and connector 22 is made to stretch out or contract from 9 lower end of moving conductive rod
Into so as to change the combined floodgate spacing of the combined floodgate stroke of moving contact 5 and dynamic and static contact 5,4.
With reference to figure 3 and Fig. 4, for the distance for realizing accurate adjustment and exact knowledge is adjusted, there are four the adjustment holes 23, and
Rectangular symmetric arrays.The major diameter of external thread of 22 outer surface of connector is 9.53mm, and tooth is away from for 1.06mm.It is adjusted when adjusting rod is inserted into
During knothole 23, adjustable 1/4 enclose every time, even if the tooth of connector 22 extended or retracted 1/4 is away from i.e. 0.265mm.It can continuously rotate
First 21 are adjusted, within the scope of making the opening away from being provided in standard of dynamic and static contact, during so as to be further ensured that vacuum circuit breaker is cut-off
Speed.
Disclosed above is only the embodiment of the utility model, and still, the utility model is not limited to this, any ability
What the technical staff in domain can think variation should all fall into the scope of protection of the utility model.
Claims (5)
1. a kind of vacuum circuit breaker is opened away from adjuster, the vacuum circuit breaker includes vacuum interrupter（10）, the vacuum extinction
Room（10）Including moving contact（5）And static contact（4）, the moving contact（5）Lower end connects moving conductive rod（9）, the moving conductive rod
（9）The other end and Operation switch（11）It is connected, which is characterized in that described to open away from adjuster（20）It is arranged at moving conductive rod（9）With
Operation switch（11）Between；It is described to open away from adjuster（20）Including cylindrical adjusting head（21）And connector（22）, the company
Connector（22）Outer surface has external screw thread, the moving conductive rod（9）Lower end has internal thread, and the two can relative rotation；The tune
Section header（21）Bottom section direction has adjustment hole（23）, it is split away from adjuster for being inserted into adjusting rod（20）It is rotated, is made
Connector（22）From moving conductive rod（9）Lower end is extended or retracted, so as to change dynamic and static contact（5、4）Open a sluice gate spacing.
2. vacuum circuit breaker according to claim 1 is opened away from adjuster, which is characterized in that the adjustment hole（23）Have four
It is a.
3. vacuum circuit breaker according to claim 2 is opened away from adjuster, which is characterized in that the adjustment hole（23）At right angles
Symmetrically.
4. vacuum circuit breaker according to claim 1 is opened away from adjuster, which is characterized in that the connector（22）Outer surface
Major diameter of external thread for 9.53mm, tooth is away from for 1.06mm.
5. vacuum circuit breaker according to claim 1 is opened away from adjuster, which is characterized in that the vacuum circuit breaker is applied to
Medium voltage switch or circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954585.XU CN207458798U (en) | 2017-08-02 | 2017-08-02 | A kind of vacuum circuit breaker is opened away from adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720954585.XU CN207458798U (en) | 2017-08-02 | 2017-08-02 | A kind of vacuum circuit breaker is opened away from adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207458798U true CN207458798U (en) | 2018-06-05 |
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ID=62249065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720954585.XU Active CN207458798U (en) | 2017-08-02 | 2017-08-02 | A kind of vacuum circuit breaker is opened away from adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207458798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433350A (en) * | 2020-03-23 | 2021-09-24 | 西安高压电器研究院有限责任公司 | Arc extinguish chamber open distance adjusting tool |
-
2017
- 2017-08-02 CN CN201720954585.XU patent/CN207458798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113433350A (en) * | 2020-03-23 | 2021-09-24 | 西安高压电器研究院有限责任公司 | Arc extinguish chamber open distance adjusting tool |
| CN113433350B (en) * | 2020-03-23 | 2024-03-08 | 西安高压电器研究院股份有限公司 | Explosion chamber opening adjustment frock |
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| GR01 | Patent grant |