CN106443048A - Device for detecting electric arc rotating speed of transverse magnetic field vacuum switch - Google Patents
Device for detecting electric arc rotating speed of transverse magnetic field vacuum switch Download PDFInfo
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- CN106443048A CN106443048A CN201611070854.2A CN201611070854A CN106443048A CN 106443048 A CN106443048 A CN 106443048A CN 201611070854 A CN201611070854 A CN 201611070854A CN 106443048 A CN106443048 A CN 106443048A
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- 238000010891 electric arc Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 230000010355 oscillation Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000004458 analytical method Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000008033 biological extinction Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
Abstract
The invention provides a device for detecting an electric arc rotating speed of a transverse magnetic field vacuum switch. The device is matched with a vacuum arc-extinguishing chamber, and the vacuum arc-extinguishing chamber comprises an upper end cover, an insulating ceramic shell, a lower end cover, a moving contact rod, a cup-shaped contact and a copper shield. The device comprises a framework, at least one Hall sensor and a signal detection mechanism. The at least one Hall sensor is used for measuring magnetic field intensity signals, with oscillation frequency in accordance with electric arc rotation frequency, generated by rotation of electric arc on the surface of the cup-shaped contact. The signal detection mechanism is used for acquisition of the magnetic field intensity signals and signal analysis and processing to realize calculation of the electric arc rotating speed of the vacuum arc-extinguishing chamber. The framework is arranged on the insulating ceramic shell of the vacuum arc-extinguishing chamber; each Hall sensor is fixed to the framework; the signal detection mechanism is positioned outside the vacuum arc-extinguishing chamber and connected with each Hall sensor. By implementation of the device, problems of high cost of a high-speed camera and demands of specially designed vacuum arc-extinguishing chambers can be solved, and accuracy in judgment of electric arc rotation conditions is realized.
Description
Technical field
The present invention relates to Vacuum switching arc detection technique field, more particularly to a kind of for detecting that transverse magnetic field vacuum is opened
The device of powered-down hook rotary speed.
Background technology
With the development of electrical technology, medium recovery speed is fast, environmental protection and electrical endurance are long because having for vacuum switch
The advantages of, it is widely used in mesolow electric field, and is divided according to the structure type of contact, vacuum switch leads to
Often it is divided into transverse magnetic field vacuum switch or longitudinal magnetic field vacuum switch.In transverse magnetic field vacuum switch, the transverse magnetic field vacuum
The contact of switch includes helicla flute contact and cup-shaped contact, and its operation principle for corresponding to arc-chutes is to flow through contact product by electric current
Raw transverse magnetic field causes vacuum arc in contact surface high-speed rotation, it is to avoid the ablation of contact surface localized hyperthermia, and then improves
Connecting-disconnecting function.
At present, the diagnosis for transverse magnetic field Vacuum switching arc kinetic characteristic and analysis, traditional method be by height
Fast CMOS camera shoots arc image, then processes, by arc image, the motion for judging electric arc, and the shortcoming of the method is：
（1）Two-dimensional image information can only be got from arc image, but cannot be accurately judged to electric arc rotational case；（2）Even if adopting
With two high speed cameras or two vertical angles while shooting arc image to obtain electric arc rotary course, but electric arc shoots
Effect and angle can all affect the accuracy of measurement result；（3）Can be caused using high speed camera relatively costly, and shoot electric arc need
Or will have in vacuum cavity in the transparent vacuum arc-chutes of observation window is carried out, vacuum interrupter is caused to need special setting
Meter.
Content of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of for detecting transverse magnetic field vacuum switch electricity
The device of hook rotary speed, high speed camera can be overcome relatively costly and particular design vacuum interrupter demand the problems such as, and
Can realize being accurately judged to electric arc rotational case.
In order to solve above-mentioned technical problem, embodiments provide a kind of for detecting transverse magnetic field vacuum switch electricity
The device of hook rotary speed, which is matched with the vacuum interrupter of transverse magnetic field vacuum switch, and the vacuum interrupter includes
End cap, insulating ceramics shell, bottom end cover, movable feeler lever, cup-shaped contact and copper radome；Described device include skeleton, at least one
The generation frequency of oscillation magnetic field intensity consistent with electric arc speed is rotated for measuring electric arc in the cup-shaped contact surface
The Hall element of signal and for magnetic field intensity signal collection and signal analysis and processing realize vacuum interrupter electric arc rotation
The signal detection mechanism of speed calculation；Wherein,
The skeleton is arranged on the insulating ceramics shell of the vacuum interrupter；
Each Hall element is both secured on the skeleton；
The signal detection mechanism is located at the vacuum extinction outdoor, and is all connected with each Hall element.
Wherein, the skeleton is arranged at the middle part of the insulating ceramics shell.
Wherein, the Hall element has eight, and eight Hall elements are in certain rule arranged distribution in institute
State on skeleton.
Wherein, the skeleton is in annular shape, and formed between two neighboring Hall element and frame center point
Angle is 45 degree.
Wherein, the signal detection mechanism includes sequentially to connect signal acquisition module, signal processing module, intellectual monitoring
Module and master controller.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, in cup-shaped contact surface, the magnetic field for producing is rotated as Hall element can measure electric arc
Strength signal, the frequency of oscillation of the magnetic field intensity signal is consistent with electric arc speed such that it is able to according to measured
The frequency of oscillation of magnetic field intensity signal is reached and can overcome high speed camera cost relatively rapidly and accurately determining electric arc rotary speed
The problems such as demand of high and particular design vacuum interrupter, and can realize being accurately judged to the purpose of electric arc rotational case.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for technology description is had to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These accompanying drawings obtain other accompanying drawings and still fall within scope of the invention.
Fig. 1 be provided in an embodiment of the present invention for detect the device of transverse magnetic field Vacuum switching arc rotary speed with true
The planar structure schematic diagram that empty arc-chutes match；
Fig. 2 is the A-A of Fig. 1 to schematic diagram；
Fig. 3 is the system structure diagram of Tu1Zhong signal detection mechanism.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
Step ground is described in detail.
As shown in Figure 1 to Figure 3, it is that in the embodiment of the present invention, the one kind for providing is for detecting transverse magnetic field vacuum switch electricity
The device of hook rotary speed, which is matched with the vacuum interrupter of transverse magnetic field vacuum switch, and vacuum interrupter includes upper end cover
1, insulating ceramics shell 2, bottom end cover 5, movable feeler lever 6, cup-shaped contact 7 and copper radome 8；
The device includes that skeleton 3, at least one rotate generation frequency of oscillation and electric arc rotation for measuring electric arc on 7 surface of cup-shaped contact
Turn the Hall element 4 of the consistent magnetic field intensity signal of frequency and gather and signal analysis and processing for magnetic field intensity signal
Realize the signal detection mechanism 9 of vacuum interrupter electric arc rotary speed calculating；Wherein,
Skeleton 3 is arranged on the insulating ceramics shell 2 of vacuum interrupter；
Each Hall element 4 is both secured on skeleton 3；
Signal detection mechanism 9 is located at vacuum extinction outdoor, and is all connected with each Hall element 4.
It should be noted that the middle part that skeleton 3 is located at the insulating ceramics shell 2 of vacuum interrupter is optimal, so have
The magnetic field of the measurement rotating the arc generation of effect, rather than the magnetic field that quiet moving contact itself is produced.
In embodiments of the present invention, in 7 cyclic motion process of cup-shaped contact, the transverse magnetic field that cup-shaped contact 7 is produced makes
Electric arc is obtained along the 7 surface high-speed rotation of cup-shaped contact, when electric arc arc column is near Hall element 3, Hall element 3 is measured
Magnetic field intensity signal maximum, and when electric arc arc column is away from Hall element 3, the magnetic field intensity signal that Hall element 3 is measured
Reduce, and the frequency of oscillation of magnetic field intensity signal that Hall element 3 is measured is consistent with electric arc speed, therefore permissible
The frequency of oscillation of the magnetic field intensity signal for being measured according to Hall element 3 is reached rapidly and accurately determining electric arc rotary speed
To high speed camera can be overcome relatively costly and particular design vacuum interrupter demand the problems such as, and accurate judgement can be realized
Go out the purpose of electric arc rotational case.
Further, in order to more accurately obtain the real time position of electric arc in electric arc rotary course, therefore Hall is passed
Sensor 4 has eight, and eight Hall elements 4 are in certain rule arranged distribution on skeleton 3, and such as skeleton 3 is in annular shape, and
The angle for being formed between two neighboring Hall element 4 and 3 central point of skeleton is 45 degree, so that each Hall element
3 signal period is consistent, simply 45 degree of phase.
Further, signal detection mechanism 9 includes sequentially to connect signal acquisition module 91, signal processing module 92,
Intellectual monitoring module 93 and master controller 94.
In embodiments of the present invention, the operation principle of signal detection mechanism 9 is：Realized to eight by signal acquisition module 91
The magnetic field intensity signal of individual Hall element 3 is detected, then by signal processing module 92, magnetic field intensity signal is carried out
Filtering and conditioning, and further the magnetic field intensity signal feeding to eight Hall elements 3 is completed by intellectual monitoring module 93
In master controller 94.The magnetic field intensity signal of eight Hall elements 3 of the master controller 94 pairs after signal processing is carried out
Process, real-time magnetic field Changing Pattern and frequency is obtained, and then obtains electric arc rotary speed.In order to more accurately obtain rotating the arc
Real time position, can with 3 magnetic field intensity signal of Hall element most strong when corresponding Hall element location position as electric arc
The position of arc column, and then rotating the arc is obtained in contact surface real time position distribution situation.
Implement the embodiment of the present invention, have the advantages that：
In embodiments of the present invention, in cup-shaped contact surface, the magnetic field for producing is rotated as Hall element can measure electric arc
Strength signal, the frequency of oscillation of the magnetic field intensity signal is consistent with electric arc speed such that it is able to according to measured
The frequency of oscillation of magnetic field intensity signal is reached and can overcome high speed camera cost relatively rapidly and accurately determining electric arc rotary speed
The problems such as demand of high and particular design vacuum interrupter, and can realize being accurately judged to the purpose of electric arc rotational case.
A kind of above disclosed only preferred embodiment of the present invention, can not limit the power of the present invention certainly with this
Sharp scope, the equivalent variations that is therefore made according to the claims in the present invention, still belong to the scope covered by the present invention.
Claims (5)
1. a kind of device for detecting transverse magnetic field Vacuum switching arc rotary speed, which is true with transverse magnetic field vacuum switch
Empty arc-chutes match, and the vacuum interrupter includes upper end cover（1）, insulating ceramics shell（2）, bottom end cover（5）, movable feeler lever
（6）, cup-shaped contact（7）With copper radome（8）；Characterized in that, described device includes skeleton（3）, at least one be used for measure
Electric arc is in the cup-shaped contact（7）Surface rotation produces the Hall of the frequency of oscillation field signal consistent with electric arc speed
Sensor（4）And the calculating of vacuum interrupter electric arc rotary speed is realized for magnetic field intensity signal collection and signal analysis and processing
Signal detection mechanism（9）；Wherein,
The skeleton（3）It is arranged at the insulating ceramics shell of the vacuum interrupter（2）On；
Each Hall element（4）It is both secured to the skeleton（3）On；
The signal detection mechanism（9）Positioned at the vacuum extinction outdoor, and with each Hall element（4）Homogeneously
Even.
2. device as claimed in claim 1, it is characterised in that the skeleton（3）It is arranged at the insulating ceramics shell（2）'s
Middle part.
3. device as claimed in claim 2, it is characterised in that the Hall element（4）There are eight, and eight Halls
Sensor（4）In certain rule arranged distribution in the skeleton（3）On.
4. device as claimed in claim 3, it is characterised in that the skeleton（3）In annular shape, and two neighboring hall sensing
Device（4）With the skeleton（3）The angle for being formed between central point is 45 degree.
5. device as claimed in claim 4, it is characterised in that the signal detection mechanism（9）Including the signal for sequentially connecting
Acquisition module（91）, signal processing module（92）, intellectual monitoring module（93）And master controller（94）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070854.2A CN106443048A (en) | 2016-11-29 | 2016-11-29 | Device for detecting electric arc rotating speed of transverse magnetic field vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070854.2A CN106443048A (en) | 2016-11-29 | 2016-11-29 | Device for detecting electric arc rotating speed of transverse magnetic field vacuum switch |
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|---|---|
| CN106443048A true CN106443048A (en) | 2017-02-22 |
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| CN201611070854.2A Pending CN106443048A (en) | 2016-11-29 | 2016-11-29 | Device for detecting electric arc rotating speed of transverse magnetic field vacuum switch |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447748A (en) * | 2018-03-23 | 2018-08-24 | 西安交通大学 | It is a kind of to use the vacuum interrupter for applying rotating excitation field outside and its cut-off direct methods |
| CN112880537A (en) * | 2021-01-14 | 2021-06-01 | 东北大学 | Device and method for measuring arc space distribution in vacuum arc remelting process |
| CN114236168A (en) * | 2021-12-28 | 2022-03-25 | 中国航天空气动力技术研究院 | Arc root rotating speed measuring device and method for arc plasma generator |
| CN114660513A (en) * | 2022-02-21 | 2022-06-24 | 北京航空航天大学 | Magnetic field characteristic measuring device of high-power magnetic plasma thruster |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447748A (en) * | 2018-03-23 | 2018-08-24 | 西安交通大学 | It is a kind of to use the vacuum interrupter for applying rotating excitation field outside and its cut-off direct methods |
| CN112880537A (en) * | 2021-01-14 | 2021-06-01 | 东北大学 | Device and method for measuring arc space distribution in vacuum arc remelting process |
| CN112880537B (en) * | 2021-01-14 | 2021-12-03 | 东北大学 | Device and method for measuring arc space distribution in vacuum arc remelting process |
| CN114236168A (en) * | 2021-12-28 | 2022-03-25 | 中国航天空气动力技术研究院 | Arc root rotating speed measuring device and method for arc plasma generator |
| CN114660513A (en) * | 2022-02-21 | 2022-06-24 | 北京航空航天大学 | Magnetic field characteristic measuring device of high-power magnetic plasma thruster |
| CN114660513B (en) * | 2022-02-21 | 2022-09-23 | 北京航空航天大学 | Magnetic field characteristic measuring device of high-power magnetic plasma thruster |
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Application publication date: 20170222 |
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