CN207019618U - A kind of Transformer Winding device for detecting axial displacement - Google Patents
A kind of Transformer Winding device for detecting axial displacement Download PDFInfo
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- CN207019618U CN207019618U CN201720978865.4U CN201720978865U CN207019618U CN 207019618 U CN207019618 U CN 207019618U CN 201720978865 U CN201720978865 U CN 201720978865U CN 207019618 U CN207019618 U CN 207019618U
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- transformer
- measured body
- transformer winding
- axial displacement
- winding device
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Abstract
The utility model discloses a kind of Transformer Winding device for detecting axial displacement, including displacement transducer, measured body, ground wire, displacement transducer is fixedly mounted on transformer core clamp, measured body is relatively arranged on transformer pressing plate with displacement transducer, and measured body is connected by being grounded with the transformer core clamp being grounded.In transformer station high-voltage side bus, by displacement sensor its distance between with measured body, the displacement of transformer winding vibration can be obtained in real time, by continuous two minimum and maximum displacements, can further obtain the amplitude of transformer winding vibration.The utility model realizes the measurement of Transformer Winding axial displacement and monitoring in real time in operation, to verifying whether the electromagnetic design of transformer meets the requirements, verify the runnability of transformer, monitoring Transformer Winding thrust state has facilitation, also meets the needs of transformer vibration Characteristics.
Description
Technical field
It the utility model is related to power equipment monitoring technical field, more particularly to a kind of detection of Transformer Winding axial displacement
Device.
Background technology
Power transformer is the hinge type key equipment of power system power transmission and transformation network, is the key of transformation of electrical energy, in electricity
Play an important roll in net, its reliability of operation is directly connected to the safety and stablization of power system.Transformer coil compresses
Device thrust not enough or unbalance stress, the former causes winding to loosen, vibration and noise aggravation, and cause nail pressing bowl suspend electricity
Position electric discharge, or even nail pressing bowl occur after winding is by heavy current impact and come off, the latter causes winding to tilt, in winding by big
Occurs winding deformation after rush of current.
Monitored in real time by the axial vibration amplitude to Transformer Winding, being able to verify that the electromagnetic design of transformer is
No to meet the requirements, whether checking pretightning force meets design load, have the function that to the design for improving transformer it is important, while to grinding
Study carefully the basket vibration characteristic in the case of different pretightning forces and provide a kind of effective means.At present for the axial direction of Transformer Winding
The real-time monitoring of vibration amplitude, there is no effective means.
Utility model content
The utility model provides a kind of Transformer Winding device for detecting axial displacement, can solve the problem that existing axis of winding vibration
The technical barrier that amplitude can not monitor in real time.
To reach above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that：
A kind of Transformer Winding device for detecting axial displacement, including displacement transducer, measured body and ground wire, the displacement
Sensor is fixedly mounted on transformer core clamp, and the measured body is relatively arranged on transformer with institute's displacement sensors
On pressing plate, the measured body is connected by the ground wire with transformer core clamp.
Further, institute's displacement sensors are current vortex sensor, and range is 0~1000 μm, and resolution ratio is 0.5 μm,
The influence of transformer oil can be overcome using current vortex sensor.
Further, the measured body is weak permeability magnetic material.
Further, the measured body is copper, aluminium or alloy steel material, and surface roughness is less than 0.4 μm, can weaken magnetic
The influence of effect, additive error to measurement accuracy.
Further, the ground wire is braiding annealed copper wire, can avoid fractureing in vibration processes.
Further, described transformer core clamp is by wire external ground, therefore measured body 2 actually also connects
Ground, prevent the generation of suspended discharge.
The beneficial effects of the utility model are：A kind of Transformer Winding axial displacement detection dress provided by the utility model
Put, axial vibration amplitude that can not only be to Transformer Winding is monitored in real time, be able to verify that transformer electromagnetic design whether
Meet the requirements, checking pretightning force whether meet design load, have the function that to the design for improving transformer it is important, while to study
Basket vibration characteristic in the case of different pretightning forces provides a kind of effective means.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described.
Fig. 1 is a kind of structural representation of embodiment of the utility model.
In figure, 1：Displacement transducer；2：Measured body；3：Ground wire；4：Transformer core clamp；5：Transformer pressing plate.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.Obviously, described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment
It refer to Fig. 1, the preferable one embodiment of the utility model, including displacement transducer 1, measured body 2 and ground wire
3, displacement transducer 1 is fixedly mounted on transformer core clamp 4, and measured body 2 is relatively arranged on transformation with displacement transducer 1
On device pressing plate 5, specially measured body 2 is located at the underface of displacement transducer 1, and measured body 2 passes through ground wire 3 and transformer core
Folder 4 connects, and the distance between displacement transducer 1 and measured body 2 are 800 μm, and displacement transducer 1 is current vortex sensor, amount
Journey is 0~1000 μm, and resolution ratio is 0.5 μm, therefore can measure the vibration displacement between measured body -200 ~ 800 μm, measured body
2 be the copper with weak permeance, aluminium or alloy steel material, and surface roughness is less than 0.4 μm, can weaken magnetic effect, add
Influence of the error to measurement accuracy, and 3 are grounded as braiding annealed copper wire, it can avoid fractureing in vibration processes, transformer fe
Core folder 4 is by wire external ground, therefore measured body 2 is actually also grounded, and prevents the generation of suspended discharge.
When implementing, be full of transformer oil in transformer, in transformer station high-voltage side bus, by displacement sensor its with quilt
The distance between body is surveyed, the displacement of transformer winding vibration can be obtained in real time, by continuous two minimum and maximum displacements,
The amplitude of transformer winding vibration can further be obtained.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Change or replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with described
Scope of the claims is defined.
Claims (6)
- A kind of 1. Transformer Winding device for detecting axial displacement, it is characterised in that：Including displacement transducer（1）, measured body（2）With Ground wire（3）, institute's displacement sensors（1）It is fixedly mounted on transformer core clamp（4）On, the measured body（2）With it is described Displacement transducer（1）Relatively it is arranged on transformer pressing plate（5）On, the measured body（2）Pass through the ground wire（3）With it is described Transformer core clamp（4）Connection.
- 2. Transformer Winding device for detecting axial displacement according to claim 1, it is characterised in that：Institute's displacement sensors （1）For current vortex sensor, range is 0~1000 μm, and resolution ratio is 0.5 μm.
- 3. Transformer Winding device for detecting axial displacement according to claim 1, it is characterised in that：The measured body（2） For weak permeability magnetic material.
- 4. Transformer Winding device for detecting axial displacement according to claim 3, it is characterised in that：The measured body（2） For copper, aluminium or alloy steel material, surface roughness is less than 0.4 μm.
- 5. Transformer Winding device for detecting axial displacement according to claim 1, it is characterised in that：The ground wire（3） To weave annealed copper wire.
- 6. Transformer Winding device for detecting axial displacement according to claim 1, it is characterised in that：Described transformer fe Core folder（4）Pass through wire external ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720978865.4U CN207019618U (en) | 2017-08-07 | 2017-08-07 | A kind of Transformer Winding device for detecting axial displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720978865.4U CN207019618U (en) | 2017-08-07 | 2017-08-07 | A kind of Transformer Winding device for detecting axial displacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207019618U true CN207019618U (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720978865.4U Active CN207019618U (en) | 2017-08-07 | 2017-08-07 | A kind of Transformer Winding device for detecting axial displacement |
Country Status (1)
| Country | Link |
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| CN (1) | CN207019618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035561A (en) * | 2020-12-07 | 2021-06-25 | 广西电网有限责任公司电力科学研究院 | Oil pressure measurement-based transformer winding oil flow balance design method |
| CN114323382A (en) * | 2021-12-22 | 2022-04-12 | 广西电网有限责任公司南宁供电局 | Transformer winding compaction force detection system and detection method |
-
2017
- 2017-08-07 CN CN201720978865.4U patent/CN207019618U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035561A (en) * | 2020-12-07 | 2021-06-25 | 广西电网有限责任公司电力科学研究院 | Oil pressure measurement-based transformer winding oil flow balance design method |
| CN114323382A (en) * | 2021-12-22 | 2022-04-12 | 广西电网有限责任公司南宁供电局 | Transformer winding compaction force detection system and detection method |
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