CN108008291A - High-voltage circuitbreaker acting characteristic measuring device and application process based on high speed imaging - Google Patents
High-voltage circuitbreaker acting characteristic measuring device and application process based on high speed imaging Download PDFInfo
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- CN108008291A CN108008291A CN201711174389.1A CN201711174389A CN108008291A CN 108008291 A CN108008291 A CN 108008291A CN 201711174389 A CN201711174389 A CN 201711174389A CN 108008291 A CN108008291 A CN 108008291A
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- voltage circuitbreaker
- high speed
- speed imaging
- acting characteristic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
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Abstract
The invention discloses a kind of high-voltage circuitbreaker acting characteristic measuring device and application process based on high speed imaging, high-voltage circuitbreaker acting characteristic measuring device includes Adjustable bracing bar, high speed imaging instrument and measurement aided ruler, high speed imaging instrument is fixed on Adjustable bracing bar, measure aided ruler to be arranged on the mechanical moving element of measured high-voltage circuitbreaker, high speed imaging instrument is arranged in the outside of measured high-voltage circuitbreaker and alignment lens measurement aided ruler；Application process includes obtaining divide-shut brake speed curve based on high-voltage circuitbreaker acting characteristic measuring device and extracts acting characteristic data based on divide-shut brake speed curve to assess the state for being measured high-voltage circuitbreaker.The present invention, which can realize, assesses the contactless accurate measurement of high-voltage circuitbreaker acting characteristic and the state to being measured high-voltage circuitbreaker, has the advantages that implementation simple and fast, detection accuracy are high.
Description
Technical field
The present invention relates to high-voltage circuit-breaker status detection field, and in particular to a kind of high-voltage circuitbreaker based on high speed imaging
Acting characteristic measuring device and application process, for the branch wire time during circuit-breaker switching on-off, divide-shut brake speed etc. into
Row measurement, to diagnose the mechanical performance of high-voltage circuitbreaker.
Background technology
High-voltage circuitbreaker is most important protection and control device in electric system, and the reliability of its performance is directly related to
The security of electric system, the reliability of breaker performance and the characteristic of its machine driven system and reliability are closely related.It is disconnected
Road device acting characteristic and the health status of circuit breaker operation mechanism are closely related, such as are changed with time pass by contact travel
System can be found that the potential faults such as breaker actuating component wear fatigue aging, deformation, bite, therefore studies high-voltage circuitbreaker action
Characteristic measurement method, significance is suffered to promoting circuit-breaker status maintenance, reducing power off time and improving power supply reliability.
With the development of high-speed imaging technology and data transmission technology, shooting performance is become better and better, and image is more and more clear, is imaged at the same time
The cost of instrument progressively declines.Contactless measurement based on high-speed imaging technology is adapted to carry out speed to fast moving objects
Measurement.
The content of the invention
The technical problem to be solved in the present invention：Measurement demand for acting characteristic during high-voltage circuit-breaker switching on-off and
The above problem of the prior art, there is provided a kind of high-voltage circuitbreaker acting characteristic measuring device and application side based on high speed imaging
Method, high-voltage circuitbreaker acting characteristic measuring device of the invention can realize the contactless standard to high-voltage circuitbreaker acting characteristic
Really measurement, evaluates and formulates for breaker mechanical performance state breaker mechanism maintenance decision and provide foundation；The high pressure of the present invention
The application process of breaker operating characteristic measuring device can realize that acting characteristic based on acquisition and its calibration value are compared
The state for being measured high-voltage circuitbreaker is assessed, has the advantages that implementation simple and fast, detection accuracy are high.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
The present invention provides a kind of high-voltage circuitbreaker acting characteristic measuring device based on high speed imaging, including Adjustable bracing bar, height
Fast imager and measurement aided ruler, the high speed imaging instrument are fixed on Adjustable bracing bar, the measurement aided ruler
On the mechanical moving element of measured high-voltage circuitbreaker, the high speed imaging instrument is arranged in the outer of measured high-voltage circuitbreaker
Side and alignment lens measurement aided ruler.
Preferably, the measurement aided ruler is made of a plurality of chequered with black and white striped.
Preferably, the width of the striped is 5mm.
Preferably, the auxiliary lighting apparatus for light filling is additionally provided with front side of the measurement aided ruler.
Preferably, the sampling frame per second of the high speed imaging instrument is not less than 10000fps.
Preferably, the measurement aided ruler is mounted on the mechanical moving element of measured high-voltage circuitbreaker.Or
Person, the measurement aided ruler are to etch to be formed on the mechanical moving element of high-voltage circuitbreaker is measured using laser technology.
The present invention also provides a kind of application side of the foregoing high-voltage circuitbreaker acting characteristic measuring device based on high speed imaging
Method, implementation steps include：
1）Installation is fixed on the mechanical moving element of high-voltage circuitbreaker is measured in advance or processing forms measurement aided ruler；When
When needing to carry out the measurement of high-voltage circuitbreaker acting characteristic, high speed imaging instrument and high speed imaging instrument are fixed by Adjustable bracing bar
Camera lens in face of measurement aided ruler and complete focus operation so that the reference point on measurement aided ruler is on high speed imaging instrument
Blur-free imaging, and record the initial position of reference point in the picturex 0；
2）Operation is measured high-voltage circuitbreaker and carries out divide-shut brake, during measured high-voltage circuitbreaker carries out divide-shut brake, leads to
Cross the picture frame for the reference point that high speed imaging instrument is obtained on measurement aided ruler；
3）Multiple sampling instants during selected measured high-voltage circuitbreaker progress divide-shut braket i, when obtaining each sampling
Carvet iPosition relative initial position of the reference point in picture framex 0Between reference point move distancex i, according to each sampling
Momentt iReference point move distancex iDraw and obtain the divide-shut brake speed curve for being measured high-voltage circuitbreaker；
4）The acting characteristic of high-voltage circuitbreaker is measured according to the divide-shut brake speed curve acquisition of measured high-voltage circuitbreaker, it is described
Whether at least one of in place acting characteristic includes branch wire time, divide-shut brake speed, divide-shut brake stroke, divide-shut brake feature
Value；And it is compared according to the acting characteristic and its calibration value of acquisition and the state for being measured high-voltage circuitbreaker is assessed.
Preferably, step 3）It is middle according to each sampling instantt iReference point move distancex iDrafting obtains being measured height
The detailed step of the divide-shut brake speed curve of voltage breaker includes：For each group of adjacent sampling instantt iAnd sampling instantt i+1, by sampling instantt iReference point move distancex i, sampling instantt i+1Reference point move distancex i+1Difference is asked to be adopted
The sample momentt iAnd sampling instantt i+1Between relative movement distance △x, by sampling instantt iAnd sampling instantt i+1Between it is opposite
Displacement distance △xDivided by sampling instantt iAnd sampling instantt i+1Between sampling time interval △t, obtain sampling instantt iWith adopt
The sample momentt i+1Between divide-shut brake speedv i；The most divide-shut brake speed of all groups of adjacent sampling instants at lastv iIt is combined,
Obtain being measured the divide-shut brake speed curve of high-voltage circuitbreaker.
High-voltage circuitbreaker acting characteristic measuring device tool of the present invention based on high speed imaging has the advantage that：
1st, environmental suitability of the present invention is strong, can be carried out according to the high-voltage circuitbreaker of different structure and measured.
2nd, the accurate measurement of the achievable circuit-breaker switching on-off acting characteristic of the present invention, is evaluated for breaker mechanical performance state
Foundation is provided with breaker mechanism maintenance decision is formulated, effectively improves power supply reliability.
3rd, the present invention is not required to in-site installation sensor, and highly practical, use is easy to operate.
4th, the present invention is the contactless measurement based on high speed imaging, and high-voltage circuitbreaker internal structure will not be caused
Damage.
5th, the present invention has the advantages of accuracy of measurement is high, and accuracy is high.
The application process tool of high-voltage circuitbreaker acting characteristic measuring device of the invention based on high speed imaging has the advantage that：
The application process of high-voltage circuitbreaker acting characteristic measuring device of the invention based on high speed imaging is based on high speed imaging for the present invention
High-voltage circuitbreaker acting characteristic measuring device application, equally also there is the high-voltage circuitbreaker based on high speed imaging of the invention to move
Make the aforementioned advantages of characteristic measuring device, while according to each sampling instantt iReference point move distancex iDrafting obtain by
The divide-shut brake speed curve of high-voltage circuitbreaker is measured, measurement result information integrality is strong, according to point of measured high-voltage circuitbreaker
Closing speed curve acquisition is measured the acting characteristic of high-voltage circuitbreaker, and is carried out according to the acting characteristic and its calibration value of acquisition
Compare and the state for being measured high-voltage circuitbreaker is assessed, can realize that the acting characteristic based on acquisition and its calibration value carry out
Compare and the state for being measured high-voltage circuitbreaker is assessed, have the advantages that implementation simple and fast, detection accuracy are high.
Brief description of the drawings
Fig. 1 is the measurement aided ruler schematic diagram of the embodiment of the present invention one.
Fig. 2 is the apparatus structure schematic diagram of the embodiment of the present invention one.
Marginal data：1st, Adjustable bracing bar；2nd, high speed imaging instrument；3rd, aided ruler is measured；4th, auxiliary lighting apparatus；5th, quilt
Testing high voltage breaker；51st, breaker mechanical moving component；52nd, arc-chutes；53rd, fracture.
Embodiment
Embodiment one：
As shown in Figure 1, high-voltage circuitbreaker acting characteristic measuring device of the present embodiment based on high speed imaging includes Adjustable bracing bar
1st, high speed imaging instrument 2 and measurement aided ruler 3, high speed imaging instrument 2 is fixed on Adjustable bracing bar 1, based on adjustable supports
Bar 1 can be according to tested high-voltage circuitbreaker（Referring to the label 5 in Fig. 1）Structure and size high speed imaging instrument 2 can be adjusted placement
In diverse location, ensure focusing accurately and reliably, measurement aided ruler 3 is arranged on the mechanical moving element for being measured high-voltage circuitbreaker
On, high speed imaging instrument 2 is arranged in the outside of measured high-voltage circuitbreaker and alignment lens measurement aided ruler 3.Referring to Fig. 1, quilt
Testing high voltage breaker（Referring to the label 5 in Fig. 1）Breaker mechanical moving component（Referring to the label 51 in Fig. 1）Upper connection
There are arc-chutes（Referring to the label 52 in Fig. 1）And it is arranged in arc-chutes（Referring to the label 52 in Fig. 1）Interior fracture（Referring to figure
Label 53 in 1）, by high speed imaging instrument 2 to breaker mechanical moving component（Referring to the label 51 in Fig. 1）Quickly connected
Continuous shooting, contact of breaker reality is mapped out according to the positional information of each two field picture of divide-shut brake process by establishing image coordinate
Displacement in moving process, can realize the contactless accurate measurement of breaker operating characteristic, be breaker mechanical performance shape
State is evaluated and is formulated breaker mechanism maintenance decision and provides foundation, has the advantages that implementation simple and fast, detection accuracy are high.
Adjustable bracing bar 1 is used to fix high speed imaging instrument and adjusts its position.As shown in Figure 1, adjustable supporting in the present embodiment
Strut 1 includes more piece linking arm and an erecting bed, is equipped between adjacent linking arm and between linking arm and erecting bed
The universal connecting joint of adjustable angle, high speed imaging instrument 2 are installed on the erecting bed of Adjustable bracing bar 1, so as to realize pair
The flexibly flexible of the camera lens orientation of high speed imaging instrument 2, deflecting are adjusted to adapt to the structure snd size of high-voltage circuitbreaker.
In the present embodiment, the sampling frame per second of high speed imaging instrument 2 is 10000fps.
As shown in Fig. 2, measurement aided ruler 3 be made of a plurality of chequered with black and white striped, be on the one hand able to ensure that at a high speed into
Reference point locations can be more easily determined as instrument 2 is accurately and rapidly focused, while in later image processing.The present embodiment
In, the width of striped is 5mm.
As shown in Figure 1, the front side of measurement aided ruler 3 is additionally provided with the auxiliary lighting apparatus 4 for light filling, by aiding in shining
Bright device 4 can provide light source to measurement aided ruler 3, it is ensured that focus effects and image quality, can effectively improve the later stage
The accuracy of image procossing.
In the present embodiment, measurement aided ruler 3 is mounted on the mechanical moving element of measured high-voltage circuitbreaker.
Referring to Fig. 1, the present embodiment high speed imager 2 is connected to host computer, passes through the Data Management Analysis in host computer
Identification and processing of the system to signal captured by high speed imaging instrument, are finally translated into breaker operating characteristic result.
The implementation steps of the application process of high-voltage circuitbreaker acting characteristic measuring device of the present embodiment based on high speed imaging
Including：
1）Installation is fixed on the mechanical moving element of high-voltage circuitbreaker is measured in advance or processing forms measurement aided ruler 3；
When needing to carry out the measurement of high-voltage circuitbreaker acting characteristic, high speed imaging instrument 2 is fixed by Adjustable bracing bar 1 and high speed into
As the camera lens of instrument 2 in face of measurement aided ruler 3 and completes focus operation so that the reference point on measurement aided ruler 3 is at a high speed
Blur-free imaging on imager 2, and record the initial position of reference point in the picturex 0；
2）Operation is measured high-voltage circuitbreaker and carries out divide-shut brake, during measured high-voltage circuitbreaker carries out divide-shut brake, leads to
Cross the picture frame for the reference point that high speed imaging instrument 2 is obtained on measurement aided ruler 3；
3）Multiple sampling instants during selected measured high-voltage circuitbreaker progress divide-shut braket i, when obtaining each sampling
Carvet iPosition relative initial position of the reference point in picture framex 0Between reference point move distancex i, according to each sampling
Momentt iReference point move distancex iDraw and obtain the divide-shut brake speed curve for being measured high-voltage circuitbreaker；
4）The acting characteristic of high-voltage circuitbreaker is measured according to the divide-shut brake speed curve acquisition of measured high-voltage circuitbreaker, it is described
Whether at least one of in place acting characteristic includes branch wire time, divide-shut brake speed, divide-shut brake stroke, divide-shut brake feature
Value；And it is compared according to the acting characteristic and its calibration value of acquisition and the state for being measured high-voltage circuitbreaker is assessed.
In the present embodiment, step 1）In high speed imaging instrument 2 and high speed imaging instrument 2 fixed by Adjustable bracing bar 1
, it is necessary to use Adjustable bracing bar 1 to be stretched, deflecting adjusting when camera lens is in face of measuring aided ruler 3 and completing focus operation,
Make contact of breaker witness mark blur-free imaging on high speed imaging instrument 2.According to the structure and size of tested high-voltage circuitbreaker
Set with space, the linking arm in Adjustable bracing bar 1 can be reasonably selected, it is necessary to be adjusted by Adjustable bracing bar 1 by focusing system y
Axial adjustment is extremely axially in parallel with the mechanical moving element of measured high-voltage circuitbreaker, as shown in Figure 2.Referring to Fig. 2, the present embodiment
In, the focus o of high speed imaging instrument 22 is arranged on a certain blackstreak upper edge of measurement aided ruler 3, wherein x is focal plane
X-axis, y represents the y-axis of focal plane, and focus o is located at the intersection point of x-axis and y-axis.
In the present embodiment, step 3）It is middle according to each sampling instantt iReference point move distancex iDrafting is tested
Measuring the detailed step of the divide-shut brake speed curve of high-voltage circuitbreaker includes：For each group of adjacent sampling instantt iDuring with sampling
Carvet i+1, by sampling instantt iReference point move distancex i, sampling instantt i+1Reference point move distancex i+1Difference is asked to obtain
Sampling instantt iAnd sampling instantt i+1Between relative movement distance △x, by sampling instantt iAnd sampling instantt i+1Between phase
To displacement distance △xDivided by sampling instantt iAnd sampling instantt i+1Between sampling time interval △t, obtain sampling instantt iWith
Sampling instantt i+1Between divide-shut brake speedv i；The most divide-shut brake speed of all groups of adjacent sampling instants at lastv iCarry out group
Close, obtain being measured the divide-shut brake speed curve of high-voltage circuitbreaker.For example, during divide-shut brake, high speed imaging instrument existst 1、t 2、t 3……t nDuring the moment, auxiliary focusing point is not to be apart from initial positionx 1、x 2、x 3……x n, then the speed of divide-shut brake at different moments
Spend for (x 2-x 1)/(t 2-t 1)、(x 3-x 2)/(t 3-t 2)……(x n-x (n-1))/(t n-t (n-1)), can with reference to speed at different moments
To draw divide-shut brake speed curve.
By being verified, high-voltage circuitbreaker acting characteristic measuring device of the present embodiment based on high speed imaging and its
Application process is proved to work well, is easy to use, and design requirement is fully achieved.
Embodiment two：
High-voltage circuitbreaker acting characteristic measuring device and embodiment one of the present embodiment based on high speed imaging are essentially identical, its is main
Difference is different for the implementation of measurement aided ruler 3.In the present embodiment, measurement aided ruler 3 is to be existed using laser technology
It is measured to etch on the mechanical moving element of high-voltage circuitbreaker and is formed.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
- A kind of 1. high-voltage circuitbreaker acting characteristic measuring device based on high speed imaging, it is characterised in that：Including Adjustable bracing bar （1）, high speed imaging instrument（2）With measurement aided ruler（3）, the high speed imaging instrument（2）It is fixed on Adjustable bracing bar（1） On, the measurement aided ruler（3）On the mechanical moving element of measured high-voltage circuitbreaker, the high speed imaging instrument（2） It is arranged in the outside of measured high-voltage circuitbreaker and alignment lens measurement aided ruler（3）.
- 2. the high-voltage circuitbreaker acting characteristic measuring device according to claim 1 based on high speed imaging, it is characterised in that： The measurement aided ruler（3）It is made of a plurality of chequered with black and white striped.
- 3. the high-voltage circuitbreaker acting characteristic measuring device according to claim 2 based on high speed imaging, it is characterised in that： The width of the striped is 5mm.
- 4. the high-voltage circuitbreaker acting characteristic measuring device according to claim 1 based on high speed imaging, it is characterised in that： The measurement aided ruler（3）Front side be additionally provided with auxiliary lighting apparatus for light filling（4）.
- 5. the high-voltage circuitbreaker acting characteristic measuring device according to claim 1 based on high speed imaging, it is characterised in that： The high speed imaging instrument（2）Sampling frame per second be not less than 10000fps.
- 6. the high-voltage circuitbreaker acting characteristic measuring device according to claim 1 based on high speed imaging, it is characterised in that： The measurement aided ruler（3）It is mounted on the mechanical moving element of measured high-voltage circuitbreaker.
- 7. the high-voltage circuitbreaker acting characteristic measuring device according to claim 1 based on high speed imaging, it is characterised in that： The measurement aided ruler（3）Formed to be etched using laser technology on the mechanical moving element of high-voltage circuitbreaker is measured.
- A kind of 8. high-voltage circuitbreaker acting characteristic measuring device based on high speed imaging described in any one in claim 1~7 Application process, it is characterised in that implementation steps include：1）Installation is fixed on the mechanical moving element of high-voltage circuitbreaker is measured in advance or processing forms measurement aided ruler （3）；When needing to carry out the measurement of high-voltage circuitbreaker acting characteristic, pass through Adjustable bracing bar（1）Fixed high speed imaging instrument（2）And make Obtain high speed imaging instrument（2）Camera lens in face of measurement aided ruler（3）And complete focus operation so that measurement aided ruler（3）On Reference point in high speed imaging instrument（2）Upper blur-free imaging, and record the initial position of reference point in the picturex 0；2）Operation is measured high-voltage circuitbreaker and carries out divide-shut brake, during measured high-voltage circuitbreaker carries out divide-shut brake, leads to Cross high speed imaging instrument（2）Obtain measurement aided ruler（3）On reference point picture frame；3）Multiple sampling instants during selected measured high-voltage circuitbreaker progress divide-shut braket i, when obtaining each sampling Carvet iPosition relative initial position of the reference point in picture framex 0Between reference point move distancex i, according to each sampling Momentt iReference point move distancex iDraw and obtain the divide-shut brake speed curve for being measured high-voltage circuitbreaker；4）The acting characteristic of high-voltage circuitbreaker is measured according to the divide-shut brake speed curve acquisition of measured high-voltage circuitbreaker, it is described Whether at least one of in place acting characteristic includes branch wire time, divide-shut brake speed, divide-shut brake stroke, divide-shut brake feature Value；And it is compared according to the acting characteristic and its calibration value of acquisition and the state for being measured high-voltage circuitbreaker is assessed.
- 9. the application process of the high-voltage circuitbreaker acting characteristic measuring device according to claim 8 based on high speed imaging, It is characterized in that, step 3）It is middle according to each sampling instantt iReference point move distancex iDrafting obtains measured height and breaks The detailed step of the divide-shut brake speed curve of road device includes：For each group of adjacent sampling instantt iAnd sampling instantt i+1, will Sampling instantt iReference point move distancex i, sampling instantt i+1Reference point move distancex i+1Difference is asked to obtain sampling instantt iAnd sampling instantt i+1Between relative movement distance △x, by sampling instantt iAnd sampling instantt i+1Between relative movement away from From △xDivided by sampling instantt iAnd sampling instantt i+1Between sampling time interval △t, obtain sampling instantt iAnd sampling instantt i+1Between divide-shut brake speedv i；The most divide-shut brake speed of all groups of adjacent sampling instants at lastv iBe combined, obtain by Measure the divide-shut brake speed curve of high-voltage circuitbreaker.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174389.1A CN108008291A (en) | 2017-11-22 | 2017-11-22 | High-voltage circuitbreaker acting characteristic measuring device and application process based on high speed imaging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174389.1A CN108008291A (en) | 2017-11-22 | 2017-11-22 | High-voltage circuitbreaker acting characteristic measuring device and application process based on high speed imaging |
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| CN201711174389.1A Pending CN108008291A (en) | 2017-11-22 | 2017-11-22 | High-voltage circuitbreaker acting characteristic measuring device and application process based on high speed imaging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110646728A (en) * | 2019-09-27 | 2020-01-03 | 国网冀北电力有限公司检修分公司 | Breaker fault analysis method and device based on moving speed of breaker contact |
| CN111855176A (en) * | 2020-07-20 | 2020-10-30 | 闽江学院 | Internet of things high-voltage circuit breaker mechanical performance rapid detection device and working method thereof |
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| CN106768987A (en) * | 2017-02-28 | 2017-05-31 | 广西电网有限责任公司桂林供电局 | The multi-target tracking method of the breaker test system being imaged with high-speed cmos |
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| CN202793771U (en) * | 2012-08-27 | 2013-03-13 | 武汉义天科技有限公司 | Breaker testing system applying high-speed charge coupled device (CCD) image-forming principle |
| CN106526467A (en) * | 2016-10-14 | 2017-03-22 | 西安交通大学 | High voltage circuit breaker switch-on and switch-off speed characteristic measurement method based on machine vision |
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| CN110646728A (en) * | 2019-09-27 | 2020-01-03 | 国网冀北电力有限公司检修分公司 | Breaker fault analysis method and device based on moving speed of breaker contact |
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Application publication date: 20180508 |