CN108572334A - Abnormal magnetic flux leakage monitoring system for transformer - Google Patents
Abnormal magnetic flux leakage monitoring system for transformer Download PDFInfo
- Publication number
- CN108572334A CN108572334A CN201810545439.0A CN201810545439A CN108572334A CN 108572334 A CN108572334 A CN 108572334A CN 201810545439 A CN201810545439 A CN 201810545439A CN 108572334 A CN108572334 A CN 108572334A
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- China
- Prior art keywords
- transformer
- coil
- recording device
- magnetic
- wave recording
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Links
- 238000012544 monitoring process Methods 0.000 title abstract description 11
- 230000002159 abnormal effect Effects 0.000 title abstract description 10
- 230000004907 flux Effects 0.000 title abstract 2
- 239000002828 fuel tank Substances 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to the technical field of transformers, and discloses a transformer abnormal magnetic flux leakage monitoring system which comprises a transformer and a wave recording device, wherein the transformer comprises an oil tank and a magnetic shield, the magnetic shield is connected to the inner wall of the oil tank, a coil is wound on the outer surface of the magnetic shield, and two ends of the coil respectively penetrate through the side wall of the oil tank and are connected with the wave recording device. Through winding the coil on the magnetic screen, and make the both ends of coil pass the lateral wall of oil tank respectively and connect the oscillograph device, make can convert the magnetic leakage into voltage signal through the coil, gather the voltage signal on the coil through the oscillograph device simultaneously, and show voltage signal's wave form, with the state of realization through voltage signal's wave form reflection magnetic leakage, thereby realized the inside magnetic leakage of monitoring transformer, with the phenomenon of ensureing to discover the unusual magnetic leakage of transformer in time, and then ensured the normal work of transformer.
Description
Technical field
The present invention relates to transformer technology fields, and system is monitored more particularly to a kind of transformer exception leakage field.
Background technology
Power transformer be it is a kind of the alternating voltage (electric current) of a certain numerical value can be become frequency it is identical another or
Electric energy can not only be sent to electricity consumption area, also by the equipment of the different voltage of several numerical value (electric current) by increasing voltage
Voltage can be reduced to it is at different levels use voltage, meet the requirement of electricity consumption, therefore, power transformer is widely used in people
Daily life in.
With the rapid development of science and technology, the scale of power grid is gradually expanded, and power grid also becomes to become increasingly complex, and power grid
Problems faced is also more and more.On the one hand, due to the rapid growth of load so that the load of power transformer is in higher
Level, therefore, when a failure occurs, power transformer it is possible that overload abnormal phenomenon；On the other hand, due to electronics
A large amount of uses of device, and influenced by phenomena such as subway line direct current leakage and earth magnetism, direct current can be scurried into AC network,
There is phenomena such as D.C. magnetic biasing so as to cause power transformers, seriously disturbs the stable operation of power grid, these abnormal phenomenon
It will all show on the leakage field of power transformer.But the inside of power transformer directly measure leakage field be it is very difficult,
Accordingly, it is difficult to find the abnormal leakage field phenomenon of power transformer in time.
Invention content
The object of the present invention is to provide a kind of transformer exception leakage fields to monitor system, to solve due to being difficult to measure electric power change
The leakage field of depressor, the technical issues of causing to be difficult to find the abnormal leakage field phenomenon of power transformer in time, to ensure power transformer
The normal work of device.
In order to solve the above technical problem, the present invention provides a kind of transformer exception leakage fields to monitor system, including transformer
And wave recording device, the transformer include fuel tank and magnetic screen, the magnetic screen is connected on the inner wall of the fuel tank, the magnetic
The outer surface of shielding is wound with coil, and the both ends of the coil are each passed through oil tank wall and connect the wave recording device.
Preferably, the oil tank wall is equipped with connecting terminal, and the both ends of the coil pass through the wiring respectively
Terminal connects the wave recording device.
Preferably, the material of the coil is circular copper wire.
Preferably, transformer exception leakage field monitoring system further includes warning device, the warning device with
The wave recording device connection.
The present invention provides a kind of transformer exception leakage field monitoring system, including transformer and wave recording device, the transformer
Including fuel tank and magnetic screen, the magnetic screen is connected on the inner wall of the fuel tank, and the outer surface winding of the magnetic screen is wired
Circle, the both ends of the coil are each passed through oil tank wall and connect the wave recording device.By on the outer surface of the magnetic screen
The coil is wound, and so that the both ends of the coil is each passed through oil tank wall and connects the wave recording device, enabling is passed through
Leakage field is converted into voltage signal by the coil, while acquiring the voltage signal on the coil by the wave recording device, and
The waveform for showing the voltage signal, to realize the state for reflecting leakage field by the waveform of the voltage signal, to realize
The leakage field for monitoring inside transformer the phenomenon that guarantee to find transformer exception leakage field in time, and then ensures transformer
Normal work.
Description of the drawings
Fig. 1 is the structural schematic diagram of the transformer in the embodiment of the present invention；
Fig. 2 is the connection diagram of the transformer and wave recording device in the embodiment of the present invention.
Wherein, 1, transformer；11, fuel tank；12, magnetic screen；13, coil；14, connecting terminal；141, the first noumenon；142、
Second ontology；143, the first fixing piece；144, two fixing piece；2, wave recording device；3, the first connecting line；4, the second connecting line.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
In conjunction with shown in Fig. 1 and Fig. 2, a kind of transformer exception leakage field of the preferred embodiment of the present invention monitors system, including becomes
Depressor 1 and wave recording device 2, the transformer 1 include fuel tank 11 and magnetic screen 12, and the magnetic screen 12 is connected to the fuel tank 11
Inner wall on, the outer surface of the magnetic screen 12 is wound with coil 13, and the both ends of the coil 13 are each passed through oil tank wall and company
Connect the wave recording device 2.
In embodiments of the present invention, by winding the coil 13 on the outer surface of the magnetic screen 12, and make described
The both ends of coil 13 are each passed through oil tank wall and connect the wave recording device 2, enabling are turned leakage field by the coil 13
It changes voltage signal into, while the voltage signal on the coil 13 is acquired by the wave recording device 2, and show the voltage letter
Number waveform monitored inside transformer 1 with realizing the state for reflecting leakage field by the waveform of the voltage signal to realize
Leakage field, the phenomenon that guarantee to find the abnormal leakage field of transformer 1 in time, and then ensure the normal work of transformer 1.
In embodiments of the present invention, the wave recording device 2 includes：Signal gathering unit, for acquiring the coil 13
Voltage signal；Signal processing unit handles for the voltage signal to acquisition, and exports the wave of the voltage signal
Shape；Display unit, the waveform for showing the voltage signal.Pass through the signal gathering unit, the signal processing unit
And the display unit, it realizes the wave recording device 2 and acquires voltage signal on the coil 13, and show the voltage
The waveform of signal, and then realize the state for reflecting leakage field by the waveform of the voltage signal.
In embodiments of the present invention, it should be noted that the magnetic screen 12 is connected to the side of the inner wall of the fuel tank 11
Formula can be according to actual use situation setting.In order to make design and simplify the structure, to reduce cost, magnetic described in the present embodiment
Shielding 12 is connected to by fastener on the inner wall of the fuel tank 11, and between the magnetic screen 12 and the inner wall of the fuel tank 11
Form gap.
As shown in Fig. 2, the coil 13 is located at the inside of the fuel tank 11, the wave recording device 2 is located at the fuel tank 11
Outside, in order to realize that the connection between the coil 13 and the wave recording device 2, oil tank wall described in the present embodiment are equipped with
The both ends of connecting terminal 14, the coil 13 connect the wave recording device 2 by the connecting terminal 14 respectively.By described
The connecting terminal 14 is set on oil tank wall so that the both ends of the coil 13 can be connected by the connecting terminal 14 respectively
Wave recording device 2 positioned at the outside of fuel tank 11.
In embodiments of the present invention, the mode that the connecting terminal 14 is set on the side wall of the fuel tank 11 can be according to reality
Border service condition setting, need to only meet ensures that the coil 13 can connect the wave recording device 2 by the connecting terminal 14
.Connecting terminal 14 described in the present embodiment is set to the one way in which of the side wall of the fuel tank 11, is embodied in：Institute
State connecting terminal 14 include the first noumenon 141, the second ontology 142, the first fixing piece 143 and the second fixing piece 144, described first
Fixing piece 143 and second fixing piece 144 are oppositely arranged, and the first noumenon 141 and second ontology 142 both pass through institute
State the first fixing piece 143 and second fixing piece 144, and respectively with first fixing piece 143 and second fixing piece
144 connections；First fixing piece 143 is connected on the outer wall of the fuel tank 11, and second fixing piece 144 is connected to described
On the inner wall of fuel tank 12.
In embodiments of the present invention, the both ends of the coil 13 connect the recording by the connecting terminal 14 respectively and fill
2 are set, is embodied in：Transformer exception leakage field monitoring system further includes the first connecting line 3 and the second connecting line 4, described
The first input end of wave recording device 2 is by first connecting line 3 and the first noumenon 141 close to first fixing piece
143 one end electrical connection, one end of the coil 13 is with the first noumenon 141 close to one end of second fixing piece 144
Electrical connection；Second input terminal of the wave recording device 2 is by second connecting line 4 and second ontology 142 close to described
One end of first fixing piece 143 is electrically connected, and the other end of the coil 13 is fixed with second ontology 142 close to described second
One end of part 144 is electrically connected.Wherein, first connecting line 3 and second connecting line 4 are conducting wire.
In embodiments of the present invention, the number of turns of the coil 13 can need to only meet really according to actual use situation setting
Leakage field in the transformer 1 can be converted into voltage signal by guarantor by the coil 13, not done herein more superfluous
It states.
In addition, the material of the coil 13 can also be according to actual use situation setting, such as circular copper wire, flat type copper wire.For
Make design and simplify the structure, to reduce cost, the material of coil 13 described in the present embodiment is circular copper wire.
In embodiments of the present invention, the phenomenon that finding transformer exception leakage field in time for the ease of user, in the present embodiment
The transformer exception leakage field monitoring system further includes warning device (not shown), and the warning device is filled with the recording
Set 2 connections.By the way that the warning device is arranged, and the warning device is made to be connect with the wave recording device 2 so that when the change
When the phenomenon that abnormal leakage field occurs in depressor 1, signal can be delivered to the warning device by the wave recording device 2, and by described
Warning device sends out alarm, to remind transformer 1 described in user abnormal leakage field phenomenon occur, and then guarantees to find to become in time
The phenomenon that depressor exception leakage field, and the operation of the transformer 1 can be adjusted in time, to ensure the normal work of the transformer 1.
To sum up, the present invention provides a kind of transformer exception leakage field monitoring system, including transformer 1 and wave recording device 2, described
Transformer 1 includes fuel tank 11 and magnetic screen 12, and the magnetic screen 12 is connected on the inner wall of the fuel tank 11, the magnetic screen 12
Outer surface be wound with coil 13, the both ends of the coil 13 are each passed through oil tank wall and connect the wave recording device 2.By
The coil 13 is wound on the outer surface of the magnetic screen 12, and so that the both ends of the coil 13 is each passed through oil tank wall and connected
The wave recording device 2, enabling leakage field is converted by voltage signal by the coil 13, while passing through the wave recording device
2 acquire the voltage signal on the coil 13, and show the waveform of the voltage signal, to realize through the voltage signal
Waveform reflects the state of leakage field, to realize the leakage field inside monitoring transformer 1, to guarantee to find transformer 1 in time
The phenomenon that abnormal leakage field, and then ensure the normal work of transformer 1.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of transformer exception leakage field monitors system, which is characterized in that including transformer and wave recording device, the transformer packet
Fuel tank and magnetic screen are included, the magnetic screen is connected on the inner wall of the fuel tank, and the outer surface of the magnetic screen is wound with coil,
The both ends of the coil are each passed through oil tank wall and connect the wave recording device.
2. transformer exception leakage field as described in claim 1 monitors system, which is characterized in that the oil tank wall is equipped with wiring
The both ends of terminal, the coil connect the wave recording device by the connecting terminal respectively.
3. transformer exception leakage field as claimed in claim 1 or 2 monitors system, which is characterized in that the material of the coil is
Circular copper wire.
4. transformer exception leakage field as claimed in claim 1 or 2 monitors system, which is characterized in that the transformer exception leakage
It further includes warning device that magnetic, which monitors system, and the warning device is connect with the wave recording device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545439.0A CN108572334B (en) | 2018-06-01 | 2018-06-01 | Abnormal magnetic flux leakage monitoring system for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810545439.0A CN108572334B (en) | 2018-06-01 | 2018-06-01 | Abnormal magnetic flux leakage monitoring system for transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108572334A true CN108572334A (en) | 2018-09-25 |
| CN108572334B CN108572334B (en) | 2020-05-26 |
Family
ID=63572932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810545439.0A Active CN108572334B (en) | 2018-06-01 | 2018-06-01 | Abnormal magnetic flux leakage monitoring system for transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN108572334B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075287A (en) * | 2021-03-31 | 2021-07-06 | 广东电网有限责任公司 | Electromagnetic shielding layer failure monitoring method, device and system |
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| WO2009018850A1 (en) * | 2007-08-06 | 2009-02-12 | Siemens Aktiengesellschaft | Method for determining the magnetic leakage flux coupling of a transformer |
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| CN105425174A (en) * | 2015-11-24 | 2016-03-23 | 广东电网有限责任公司电力科学研究院 | Method and apparatus for obtaining leakage magnetic field of core type transformer |
| CN105761901A (en) * | 2016-02-19 | 2016-07-13 | 上海电机学院 | Magnetic shielding device of transformer oil tank |
| CN106373761A (en) * | 2016-10-11 | 2017-02-01 | 山东电力设备有限公司 | Magnetic leakage control shielding structure of transformer |
| CN106556770A (en) * | 2016-11-24 | 2017-04-05 | 国网河南省电力公司周口供电公司 | A kind of self-priming leakage monitoring device and monitoring method |
| CN107202966A (en) * | 2017-05-25 | 2017-09-26 | 云南电网有限责任公司电力科学研究院 | The measuring method and system of a kind of alternate stray field of Transformer Winding |
| CN206671429U (en) * | 2017-05-04 | 2017-11-24 | 唐子东 | A kind of Magnetic Resonance (MR) Room/ MRI Room electromagnetic radiation leakage monitoring device |
| CN206849632U (en) * | 2017-06-30 | 2018-01-05 | 中国西电电气股份有限公司 | A kind of single-phase transformer fuel tank magnetic leakage shielding structure |
| CN206921662U (en) * | 2017-06-16 | 2018-01-23 | 济南西门子变压器有限公司 | Power transformer with magnetic screen |
| CN208314165U (en) * | 2018-06-01 | 2019-01-01 | 南方电网科学研究院有限责任公司 | Abnormal magnetic flux leakage monitoring system for transformer |
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2018
- 2018-06-01 CN CN201810545439.0A patent/CN108572334B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018850A1 (en) * | 2007-08-06 | 2009-02-12 | Siemens Aktiengesellschaft | Method for determining the magnetic leakage flux coupling of a transformer |
| JP2010014478A (en) * | 2008-07-02 | 2010-01-21 | Fuji Electric Fa Components & Systems Co Ltd | Leakage detector |
| CN105425174A (en) * | 2015-11-24 | 2016-03-23 | 广东电网有限责任公司电力科学研究院 | Method and apparatus for obtaining leakage magnetic field of core type transformer |
| CN105761901A (en) * | 2016-02-19 | 2016-07-13 | 上海电机学院 | Magnetic shielding device of transformer oil tank |
| CN106373761A (en) * | 2016-10-11 | 2017-02-01 | 山东电力设备有限公司 | Magnetic leakage control shielding structure of transformer |
| CN106556770A (en) * | 2016-11-24 | 2017-04-05 | 国网河南省电力公司周口供电公司 | A kind of self-priming leakage monitoring device and monitoring method |
| CN206671429U (en) * | 2017-05-04 | 2017-11-24 | 唐子东 | A kind of Magnetic Resonance (MR) Room/ MRI Room electromagnetic radiation leakage monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075287A (en) * | 2021-03-31 | 2021-07-06 | 广东电网有限责任公司 | Electromagnetic shielding layer failure monitoring method, device and system |
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| Publication number | Publication date |
|---|---|
| CN108572334B (en) | 2020-05-26 |
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Effective date of registration: 20200508 Address after: 510663 Building 3, 4, 5 and 3 of Building J1, 11 Kexiang Road, Science City, Luogang District, Guangzhou City, Guangdong Province Applicant after: China South Power Grid International Co.,Ltd. Applicant after: CHINA SOUTHERN POWER GRID Co.,Ltd. Address before: 510670 No. 11 Kexiang Road, Science City, Huangpu District, Guangzhou City, Guangdong Province Applicant before: China South Power Grid International Co.,Ltd. |
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