CN109238439A - A kind of magnetic adsorption type transformer vibrating sensor and its detection method - Google Patents
A kind of magnetic adsorption type transformer vibrating sensor and its detection method Download PDFInfo
- Publication number
- CN109238439A CN109238439A CN201810899635.8A CN201810899635A CN109238439A CN 109238439 A CN109238439 A CN 109238439A CN 201810899635 A CN201810899635 A CN 201810899635A CN 109238439 A CN109238439 A CN 109238439A
- Authority
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- China
- Prior art keywords
- vibration
- transformer
- rain cover
- piezoelectric transducer
- detection method
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- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 8
- 229920001296 polysiloxane Polymers 0.000 claims abstract 7
- 239000002828 fuel tank Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000741 silica gel Substances 0.000 description 10
- 229910002027 silica gel Inorganic materials 0.000 description 10
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
- G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
本发明涉及一种磁吸附式变压器振动传感器及其检测方法，属于电力变压器技术领域。其中，振动压电转换器设置在固定底座的中心，振动压电转换器与固定底座通过抗振硅胶灌封，电路板与振动压电转换器平行且与抗振硅胶紧密贴合，电路板通过螺钉固定在防雨罩底部；所述防雨罩底部设有环形磁铁，环形磁铁外环设有硅胶密封圈；所述防雨罩外侧设有螺纹连接的防雨罩扣盖，防雨罩与防雨罩扣盖之间设有密封圈；防水接头固定在防雨罩下端，所述防水接头用于将振动信号电缆锁紧和密封。本发明能够及时发现变压器的内部的绕组和铁心振动异常，同时安装简单，具备防水功能，满足户外长期使用，且安装位置不受限制。
The invention relates to a magnetic adsorption transformer vibration sensor and a detection method thereof, belonging to the technical field of power transformers. Among them, the vibration piezoelectric transducer is arranged in the center of the fixed base, the vibration piezoelectric transducer and the fixed base are potted with anti-vibration silicone, the circuit board is parallel to the vibration piezoelectric transducer and closely attached to the anti-vibration silicone, and the circuit board passes through the anti-vibration silicone. The screw is fixed on the bottom of the rain cover; the bottom of the rain cover is provided with a ring magnet, and the outer ring of the ring magnet is provided with a silicone sealing ring; A sealing ring is arranged between the buckle covers of the rain cover; the waterproof joint is fixed on the lower end of the rain cover, and the waterproof joint is used for locking and sealing the vibration signal cable. The invention can timely find out the abnormal vibration of the inner winding and the iron core of the transformer, at the same time, the installation is simple, has the waterproof function, can meet the long-term outdoor use, and the installation position is not limited.
Description
Technical field
The present invention relates to a kind of magnetic adsorption type transformer vibrating sensor and its detection methods, belong to power transformer technology
Field.
Background technique
In the power system, capital equipment one of of the oil-immersed transformer as electric system, operational reliability it is good
It is bad, it is directly related to network system safety work.Vibration analysis is a kind of external detection means that relative ease is easy, is passed
The vibrating sensor of system mostly uses threaded connection, and for the transformer of brand-new design, there is no problem for this, the fuel tank in design drawing
Outside reserved screwed hole, but be impossible at all for the transformer of charging operation.Even for
The position of the transformer of brand-new design, threaded hole has been fixed, and scene also cannot achieve the position of adjustment sensor.In addition, passing
Vibrating sensor of uniting all is indoor use, does not have water-proof function, is unable to satisfy outdoor long-time service.
Summary of the invention
The object of the present invention is to provide a kind of magnetic adsorption type transformer vibrating sensor and its detection methods.It can send out in time
The winding and iron coring vibration of the inside of existing transformer are abnormal, find the problem ahead of time and take effective precautionary measures in time, to subtracting
Few Accident of Transformer, the service life for extending transformer, while sensor installation is simple, has water-proof function, meets outdoor
It is used for a long time.Installation site is unrestricted, can any position real-time monitoring of oil tank of transformer operation in transformer vibration
It is dynamic.
To solve the above problems, the present invention provides a kind of magnetic adsorption type transformer vibrating sensor and its detection method,
In, the center of firm banking is arranged in vibration piezoelectric transducer, and vibration piezoelectric transducer is filled with firm banking by antivibration silica gel
Envelope, circuit board is parallel with vibration piezoelectric transducer and fits closely with antivibration silica gel, and circuit board is fixed by screws in rain cover
Bottom；The rain cover bottom is equipped with annular magnet, and silica gel sealing ring is equipped with outside annular magnet；It is equipped on the outside of the rain cover
The rain cover buckle closure of threaded connection is equipped with sealing ring between rain cover and rain cover buckle closure；Waterproof connector is fixed under rain cover
End, the waterproof connector are used for vibration signal cable locking and sealing.
For annular magnet for being absorbed and fixed at oil tank of transformer, it is close that magnet squeezes silica gel when adsorbing oil tank of transformer surface
Seal forms sealing ring, plays rain-proof dust-proof sealing function to ring internal vibration piezoelectric transducer.Antivibration silica gel will be first is that will consolidate
Determine pedestal and vibration piezoelectric transducer is isolated with rain cover, guarantees that oil tank of transformer vibration is not dry by the vibration of rain cover
It disturbs, it is ensured that accuracy of measurement；Second is that having elasticity, guarantee that vibration piezoelectric transducer and oil tank of transformer are in close contact.Rain cover
Buckle closure can be backed out for installing to circuit board wiring, and operation is facilitated.
Preferably, vibration piezoelectric transducer is not higher than firm banking.
Preferably, vibration piezoelectric transducer is not less than pedestal 1cm.
Preferably, vibration piezoelectric transducer is higher by rain cover 1mm, for being in close contact with oil tank of transformer
Preferably, it is at least four for the screw of fixing circuit board.
Preferably, rain cover and waterproof connector degree of protection are IP66.Meet waterproof requirement, can be used for outdoor long-term online
Monitoring.
Preferably, method is:
(1), the magnetostriction vibration of inside transformer iron core reaches fuel tank by feet, while inside transformer iron core
Magnetostriction vibration and the vibration of winding reach fuel tank by insulating oil, cause the vibration of transformer oil box enclosure；
(2), the surface that vibrating sensor is adsorbed on fuel tank by the way that the annular magnet of rain cover bottom is arranged in, presses vibration
Electric transducer is tightly attached on tank envelope；
(3), vibration piezoelectric transducer acquires vibration signal, and signal is passed to circuit board, is believed by circuit board and vibration
Vibration signal is transferred to control centre by number cable, extracts its time domain or frequency domain character information, constitutes characterization transformer station high-voltage side bus shape
The information of state, and then using the situation of assessment inside transformer iron core and winding.
The invention has the advantages that:
The present invention provides a kind of magnetic adsorption type transformer vibrating sensor and its detection method, and sensor installation is simple,
Have water-proof function, meets outdoor long-time service.Installation site is unrestricted, can be real-time in any position of oil tank of transformer
The vibration of transformer, can find the exception of inside transformer vibration in time in monitoring operation, improve oil-immersed transformer fortune
Capable reliability.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is magnetic bottom view of the present invention；
Fig. 3 is magnetic cross-sectional view of the present invention；
Wherein: 1, rain cover；2, rain cover buckle closure；3, sealing ring；4, silica gel sealing ring；5, annular magnet；6, antivibration silicon
Glue；7, firm banking；8, piezoelectric transducer is vibrated；9, circuit board；10, screw；11, waterproof connector；12, fuel tank.
Specific embodiment
Embodiment 1:
Referring to Figure of description, the present invention provides a kind of magnetic adsorption type transformer vibrating sensor and its detection method,
In, the center of firm banking 7 is arranged in vibration piezoelectric transducer 8, and vibration piezoelectric transducer 8 and firm banking 7 pass through antivibration silicon
6 encapsulating of glue, circuit board 9 is parallel with vibration piezoelectric transducer 8 and fits closely with antivibration silica gel 6, and circuit board 9 is solid by screw 10
It is scheduled on 1 bottom of rain cover；1 bottom of rain cover is equipped with annular magnet 5, and silica gel sealing ring 4 is equipped with outside annular magnet 5；Institute
The rain cover buckle closure 2 for being equipped with and being threadedly coupled on the outside of rain cover 1 is stated, sealing ring 3 is equipped between rain cover 1 and rain cover buckle closure 2；It is anti-
Water swivel 11 is fixed on 1 lower end of rain cover, and the waterproof connector 11 is used for vibration signal cable locking and sealing.
Preferably, vibration piezoelectric transducer 8 is flushed with firm banking 7.
Preferably, vibration piezoelectric transducer 8 is 1mm higher than rain cover 1.
It preferably, is four for the screw of fixing circuit board.
Preferably, rain cover 1 and 11 degree of protection of waterproof connector are IP66.
Annular magnet 5 is for being absorbed and fixed at oil tank of transformer 12, when annular magnet 5 adsorbs 12 surface of oil tank of transformer
It squeezes silica gel sealing ring 4 and forms sealing ring, rain-proof dust-proof sealing function is played to ring internal vibration piezoelectric transducer 8.Antivibration silica gel 6
Encapsulating vibrates the purpose of piezoelectric transducer 8 and firm banking 7 first is that by firm banking 7 and vibration piezoelectric transducer 8 and rain cover 1
It is isolated, guarantees the vibration of oil tank of transformer 12 not by the vibration interference of rain cover 1, it is ensured that accuracy of measurement；Second is that having bullet
Property, guarantee that vibration piezoelectric transducer 8 and oil tank of transformer 12 are in close contact.Rain cover buckle closure 2 can be backed out for connecing to circuit board 9
Line installation, facilitates operation.
Rain cover 1 and 11 degree of protection of waterproof connector are that IP66 has water-proof function, meet outdoor long-time service.Installation position
Set it is unrestricted, can any position real-time monitoring of oil tank of transformer operation in transformer vibration, can find in time
The exception of inside transformer vibration, improves oil-immersed transformer reliability of operation.
Specific works method are as follows:
(1), the magnetostriction of inside transformer iron core, which is vibrated, reaches fuel tank 12, while inside transformer iron core by feet
Magnetostriction vibration and the vibration of winding fuel tank 12 is reached by insulating oil, cause the vibration of transformer oil box enclosure；
(2), the table that vibration piezoelectric transducer 8 is adsorbed on fuel tank 12 by the way that the annular magnet 5 of 1 bottom of rain cover is arranged in
Face is attached to vibration piezoelectric transducer 8 tightly on tank envelope；
(3), vibration piezoelectric transducer 8 acquires vibration signal, and signal is passed to circuit board 9, passes through circuit board 9 and conducting wire
Vibration signal is transferred to control centre, extracts its time domain or frequency domain character information, constitutes the letter of characterization running state of transformer
Breath, and then using the situation of assessment inside transformer iron core and winding.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899635.8A CN109238439A (en) | 2018-08-09 | 2018-08-09 | A kind of magnetic adsorption type transformer vibrating sensor and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810899635.8A CN109238439A (en) | 2018-08-09 | 2018-08-09 | A kind of magnetic adsorption type transformer vibrating sensor and its detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109238439A true CN109238439A (en) | 2019-01-18 |
Family
ID=65071128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810899635.8A Pending CN109238439A (en) | 2018-08-09 | 2018-08-09 | A kind of magnetic adsorption type transformer vibrating sensor and its detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109238439A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440905A (en) * | 2019-06-04 | 2019-11-12 | 沃德(天津)智能技术有限公司 | A kind of Mine-used I. S vibrating sensor |
| CN112556748A (en) * | 2020-11-26 | 2021-03-26 | 中国兵器工业第五九研究所 | Microenvironment multi-factor comprehensive monitoring device and use method thereof |
| CN112571152A (en) * | 2019-09-30 | 2021-03-30 | 江苏西格数据科技有限公司 | Monitoring system for be used for detecting cutter state |
| CN113074764A (en) * | 2021-02-26 | 2021-07-06 | 兖矿集团有限公司 | Embedment device for gradient sensor buckler |
| CN114018399A (en) * | 2021-11-09 | 2022-02-08 | 中国电力科学研究院有限公司 | Self-energy-taking transformer vibration monitoring method and device based on micro-electro-mechanical technology |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10177031A (en) * | 1996-12-18 | 1998-06-30 | Rion Co Ltd | Piezoelectric acceleration sensor |
| CN202049177U (en) * | 2011-04-28 | 2011-11-23 | 厦门乃尔电子有限公司 | Piezoelectric acceleration transducer with magnetic pedestal |
| CN203133107U (en) * | 2013-04-02 | 2013-08-14 | 厦门乃尔电子有限公司 | Piezoelectric acceleration sensor integrated with temperature detection function |
| CN104714044A (en) * | 2013-12-13 | 2015-06-17 | 上海鸣志自动控制设备有限公司 | Looseness-preventing acceleration sensor magnetic suction base device |
| CN205879352U (en) * | 2016-07-22 | 2017-01-11 | 广西电网有限责任公司电力科学研究院 | Adsorption equipment for acceleration sensor |
| CN206369746U (en) * | 2016-12-19 | 2017-08-01 | 厦门乃尔电子有限公司 | A kind of piezoelectric acceleration transducer of the high-precision low phase parallactic angle of lightweight |
| CN107525947A (en) * | 2016-06-22 | 2017-12-29 | 江苏核电有限公司 | A kind of nuclear power station loosening part acceleration transducer fixing device for installing |
| CN207095706U (en) * | 2017-08-29 | 2018-03-13 | 天津伽利联科技有限公司 | Vibrating sensor and its fixture |
-
2018
- 2018-08-09 CN CN201810899635.8A patent/CN109238439A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10177031A (en) * | 1996-12-18 | 1998-06-30 | Rion Co Ltd | Piezoelectric acceleration sensor |
| CN202049177U (en) * | 2011-04-28 | 2011-11-23 | 厦门乃尔电子有限公司 | Piezoelectric acceleration transducer with magnetic pedestal |
| CN203133107U (en) * | 2013-04-02 | 2013-08-14 | 厦门乃尔电子有限公司 | Piezoelectric acceleration sensor integrated with temperature detection function |
| CN104714044A (en) * | 2013-12-13 | 2015-06-17 | 上海鸣志自动控制设备有限公司 | Looseness-preventing acceleration sensor magnetic suction base device |
| CN107525947A (en) * | 2016-06-22 | 2017-12-29 | 江苏核电有限公司 | A kind of nuclear power station loosening part acceleration transducer fixing device for installing |
| CN205879352U (en) * | 2016-07-22 | 2017-01-11 | 广西电网有限责任公司电力科学研究院 | Adsorption equipment for acceleration sensor |
| CN206369746U (en) * | 2016-12-19 | 2017-08-01 | 厦门乃尔电子有限公司 | A kind of piezoelectric acceleration transducer of the high-precision low phase parallactic angle of lightweight |
| CN207095706U (en) * | 2017-08-29 | 2018-03-13 | 天津伽利联科技有限公司 | Vibrating sensor and its fixture |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440905A (en) * | 2019-06-04 | 2019-11-12 | 沃德(天津)智能技术有限公司 | A kind of Mine-used I. S vibrating sensor |
| CN112571152A (en) * | 2019-09-30 | 2021-03-30 | 江苏西格数据科技有限公司 | Monitoring system for be used for detecting cutter state |
| CN112556748A (en) * | 2020-11-26 | 2021-03-26 | 中国兵器工业第五九研究所 | Microenvironment multi-factor comprehensive monitoring device and use method thereof |
| CN113074764A (en) * | 2021-02-26 | 2021-07-06 | 兖矿集团有限公司 | Embedment device for gradient sensor buckler |
| CN113074764B (en) * | 2021-02-26 | 2022-04-15 | 兖矿集团有限公司 | Embedment device for gradient sensor buckler |
| CN114018399A (en) * | 2021-11-09 | 2022-02-08 | 中国电力科学研究院有限公司 | Self-energy-taking transformer vibration monitoring method and device based on micro-electro-mechanical technology |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |