CN206504787U - A kind of fixing device of transformer vibrational spectrum signal detection sensor - Google Patents
A kind of fixing device of transformer vibrational spectrum signal detection sensor Download PDFInfo
- Publication number
- CN206504787U CN206504787U CN201621366120.4U CN201621366120U CN206504787U CN 206504787 U CN206504787 U CN 206504787U CN 201621366120 U CN201621366120 U CN 201621366120U CN 206504787 U CN206504787 U CN 206504787U
- Authority
- CN
- China
- Prior art keywords
- fixing device
- permanent magnet
- spectrum signal
- sensor
- vibrational spectrum
- 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
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 29
- 238000001845 vibrational spectrum Methods 0.000 title claims abstract description 26
- 230000005389 magnetism Effects 0.000 claims abstract description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 239000013590 bulk material Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910000889 permalloy Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 17
- 238000005259 measurement Methods 0.000 abstract description 7
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- 230000010355 oscillation Effects 0.000 abstract description 2
- 230000002045 lasting effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009377 nuclear transmutation Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model discloses a kind of fixing device of transformer vibrational spectrum signal detection sensor, it includes the base being fixedly connected with sensor, it is characterised in that also include：The permanent magnet and magnetism shielding hood being fixedly connected by fixing screws with the base rear end；Wherein, permanent magnet is nested in the magnetism shielding hood of spill.When the fixing device will detect the vibrational spectrum signal of transformer body, hand-held vibrational spectrum signal measurement sensor is fixedly connected with this fixing device, and it is attracting and fix by the permanent magnet and the iron surface of transformer body in fixing device, you can pass through the related information of sensor measurement.Safety, economy, the balance of efficiency can be achieved.Effectively ensure that the normal Detection results under high-intensity oscillation state, possess high reliability, solve traditional sensors can not fix, lasting problem, expanded the detection application of sensor, significantly reduced the working strength of first-line staff.
Description
Technical field
The utility model is related to a kind of detection sensor, especially detects transformer vibrational spectrum signal, diagnosis transformer
The fixing device of winding and iron core state sensor.
Background technology
The characteristic vector of Transformer vibrational spectrum signal is the Important Parameters for characterizing operating mode.Under normal condition, become
Vibration when depressor is unloaded is mainly derived from the core vibration under exciting curent effect；Load current effect has then been superimposed during load
Under basket vibration.However, the operating experience and result of study in industry show, the vibration of Transformer and its winding and
The compression degree of iron core, the displacement of winding and deform closely related.For this problem, in power equipment preventive trial code Q/
It has been distinctly claimed in CSG114002-2011, oil-immersed power transformer will measure the vibration of its case shell when necessary.
In view of the foregoing, it is necessary to develop the device of measurement power transformer vibrational spectrum signal, and through tracking measurement
The vibrational spectrum signal of equipment, analyzes the transmutation process of its winding and iron core state.In specific implementation process, measurement need to be passed
Sensor is close to after shell gather signal, and after the linear relationship of meter and device body level of vibration with load current square value, just sentences
Vibration principal element source under different loads electric current（Iron core, winding）And degree.The detection method it is a technical advantage that not
Change the structure of apparatus body, do not exist with electric loop and contact, without equipment is had a power failure, be also difficult by electrical Interference.But
The detection effective range of vibrational spectrum signal detection sensor is smaller, is typically to set sensor hand-held be positioned over during live detection
Standby different surface, this working method is to be difficult to stable for extended periods of time work under vibration, the continual and steady collection of influence
Signal.Moreover, big using tester's working strength during conventional method.
Utility model content
There is larger limitation in actual applications, be discontented with above-mentioned situation explanation, conventional vibration spectroscopic signal detection sensor
Foot further lifts the basic demand of operating efficiency；Therefore a kind of new dress of fixed vibrational spectrum signal detection sensor must be developed
Put, for improving diagnosis, finding the operating efficiency of winding and iron core abnormal state, and further reduce labor intensity.
Existing vibrational spectrum signal detection sensor operation principle, contour structures and detection workflow base are excavated deep
On plinth.The purpose of this utility model is to provide a kind of fixing device of transformer vibrational spectrum signal detection sensor.The device
Compact conformation, easy to use, the efficiency and continuous capability of lifting transformer vibrational spectrum signal detection detection work, mitigate a line
The working strength of testing crew.
To achieve these goals, the technical solution adopted in the utility model is as follows：
A kind of fixing device of transformer vibrational spectrum signal detection sensor, it includes the bottom being fixedly connected with sensor
Seat, it is characterised in that also include：
The permanent magnet and magnetism shielding hood being fixedly connected by fixing screws with the base rear end；Wherein, permanent magnet is nested in
In the magnetism shielding hood of spill.
The centre of the permanent magnet and magnetism shielding hood is provided with the through hole matched with fixing screws.
On through hole in the middle of behind the permanent magnet, provided with the counterbore with fixing screws fit heads.
The front end of the base is stud, and rear end is turret head, behind center be provided with the seat spiral shell that matches with fixing screws
Hole.
Further, the bulk material of permanent magnet is to be molded neodymium iron boron, and plating nickel on surface.
Further, the material of magnetism shielding hood is hard permalloy.
The fixing device of the transformer vibrational spectrum signal detection sensor of said structure, when transformer body to be detected
During vibrational spectrum signal, hand-held vibrational spectrum signal measurement sensor is fixedly connected with this fixing device, and pass through fixation
The iron surface of permanent magnet and transformer body on device is attracting and fixes, you can related information is measured by sensor.And
And, the balance of safety, economy, efficiency can be achieved, with advantages below：
First, creatively from the injection permanent magnet material of high magnetic, effectively it ensure that under high-intensity oscillation state
Normal Detection results, possess high reliability；
Second, magnetism shielding hood is employed, interference of the external electromagnetic field to injection permanent magnet is not only avoid, it is thus also avoided that sensing
Device base adsorbs iron filings impurity；
3rd, compact coaxial type structure is applied, the problem of traditional sensors area occupied is big is solved, expanded solid
Determine the application of device and detection sensor；
4th, the operating efficiency and continuous capability of detection transformer vibrational spectrum signal are greatly improved, is significantly reduced
The working strength of first-line staff；
5th, the limitation of traditional design theory is breached, structurally simple, economical practical fixing device is have developed, it is ensured that
The feasibility of production and processing and popularization and application.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model；
Fig. 2 is Fig. 1 stereochemical structure exploded view；
In accompanying drawing, base 1, magnetism shielding hood 2, permanent magnet 3, fixing screws 4, stud 5, seat screw 6, turret head 7, through hole 8.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
It is sectional view of the present utility model shown in Fig. 1, comes together to see with reference to Fig. 1 stereochemical structure exploded view Fig. 2, this reality
To be made up of with Novel main base 1, magnetism shielding hood 2 and permanent magnet 3, wherein, base 1 is cylinder, and front end is stud 5, and rear end is
Turret head 7, behind center be provided with the seat screw 6 that matches with fixing screws 4；Magnetism shielding hood 2 and permanent magnet 3 are cylinder, every magnetic
Cover 2 is nested in the magnetism shielding hood 2 of spill.Turret head 7 is used to rotate by wrench clamping, makes the stud 5 and vibrational spectrum of front end
Signal detection sensor is fixedly connected.The centre of permanent magnet 3 and magnetism shielding hood 2 is provided with the through hole 8 matched with fixing screws 4, Gu
Determine screw 4 to be fixedly connected with permanent magnet 3 and magnetism shielding hood 2 with the rear end of base 1 by through hole 8.Wherein, behind in the middle of permanent magnet 3
Provided with the counterbore with the fit heads of fixing screws 4；The bulk material of permanent magnet 3 is injection neodymium iron boron, and material trademark is N35-
N52, and plating nickel on surface；The material of magnetism shielding hood 2 is hard permalloy.The effect of magnetism shielding hood 2 is to concentrate magnetic force later, has been allowed to
Enough magnetic force and transformer fe body surface are attracting, moreover, avoiding interference of the external electromagnetic field to injection permanent magnet, also keep away
Sensor base absorption iron filings impurity is exempted from.
The front end of fixing device of the present utility model is consolidated by the stud 5 of base 1 with vibrational spectrum signal detection sensor
Fixed connection, rear end is adsorbed in the iron surface of transformer body by permanent magnet 3 and magnetism shielding hood 2.Vibrational spectrum signal detection is sensed
After vibration, voice signal inside device perception transformer body, testing staff is presented to by oscillograph, whether to judge equipment
There are abnormal signs.
Embodiment, the utility model specific operation process is as follows,
1. when the vibrational spectrum signal of certain 500kV transformer body of detection, by hand-held vibrational spectrum signal measurement
Device is positioned over apparatus body surface.
2. injection permanent magnet 3 is inserted in the re-entrant cavity of magnetism shielding hood 2；
3. extending vertically through injection permanent magnet 3 and magnetism shielding hood 2 with fixing screws 4, and it is screwed with base 1；
4. vibrational spectrum signal detection sensor is installed on base 1 by the stud 5 of base 1；
5. industrial vaseline is uniformly applied to after the injection permanent magnet 3 of fixing device on surface, then it is close to be adsorbed in change
At the cleaning plane in the external iron portion of depressor sheet, you can gather vibration and the acoustic information inside transformer body by sensor,
Orientation discharge source；
6. when by persistently detection, aspect ratio analysis and empirical analysis, find and position inside transformer body it is doubtful compared with
When there is winding deformation sign greatly, apply now and equipment power failure is turned into maintenance.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in utility model
Within protection domain.
Claims (6)
1. a kind of fixing device of transformer vibrational spectrum signal detection sensor, it includes the bottom being fixedly connected with sensor
Seat, it is characterised in that also include：
The permanent magnet and magnetism shielding hood being fixedly connected by fixing screws with the base rear end；Wherein, permanent magnet is nested in spill
Magnetism shielding hood in.
2. fixing device according to claim 1, it is characterised in that：
The centre of the permanent magnet and magnetism shielding hood is provided with the through hole matched with fixing screws.
3. fixing device according to claim 1, it is characterised in that：
On through hole in the middle of behind the permanent magnet, provided with the counterbore with fixing screws fit heads.
4. fixing device according to claim 1, it is characterised in that：
The front end of the base is stud, and rear end is turret head, behind center be provided with the seat screw that matches with fixing screws.
5. fixing device according to claim 1, it is characterised in that：
The bulk material of the permanent magnet is to be molded neodymium iron boron, and plating nickel on surface.
6. fixing device according to claim 1, it is characterised in that：
The material of the magnetism shielding hood is hard permalloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366120.4U CN206504787U (en) | 2016-12-13 | 2016-12-13 | A kind of fixing device of transformer vibrational spectrum signal detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621366120.4U CN206504787U (en) | 2016-12-13 | 2016-12-13 | A kind of fixing device of transformer vibrational spectrum signal detection sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504787U true CN206504787U (en) | 2017-09-19 |
Family
ID=59843607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621366120.4U Expired - Fee Related CN206504787U (en) | 2016-12-13 | 2016-12-13 | A kind of fixing device of transformer vibrational spectrum signal detection sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206504787U (en) |
-
2016
- 2016-12-13 CN CN201621366120.4U patent/CN206504787U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |