CN205483170U - Transformer oil position monitoring system based on power equipment infrared image - Google Patents
Transformer oil position monitoring system based on power equipment infrared image Download PDFInfo
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- CN205483170U CN205483170U CN201620095554.9U CN201620095554U CN205483170U CN 205483170 U CN205483170 U CN 205483170U CN 201620095554 U CN201620095554 U CN 201620095554U CN 205483170 U CN205483170 U CN 205483170U
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- imaging device
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- optical imaging
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 42
- 238000012634 optical imaging Methods 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 6
- 230000001427 coherent effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000003760 hair shine Effects 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 239000005387 chalcogenide glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Abstract
The utility model discloses a transformer oil position monitoring system based on power equipment infrared image, include: an optical imaging device, near its conservator of locating the transformer, the 2nd optical imaging device, the optical fiber image transmission beam, its output end face that has the input terminal surface that lies in this one side of an optical imaging device and lie in this one side of the 2nd optical imaging device, infrared detector, it locates near the 2nd optical imaging device, controlling means, its with infrared detector connects, wherein, an optical imaging device shines upon the input terminal surface of optical fiber image transmission beam with conservator infrared radiatior energy field, and the optical fiber image transmission beam will conservator infrared radiatior energy field transmits the output end face to from the input terminal surface, the 2nd optical imaging device will the conservator infrared radiatior energy field coupling of output end face is advanced infrared detector, infrared detector converts conservator infrared radiatior energy field into the optical information that corresponds with it to transmit to controlling means. The utility model discloses anti -electromagnetic interference can the reinforce.
Description
Technical field
This utility model relates to a kind of transformer oil level monitoring system, particularly relates to a kind of based on infrared image
Transformer oil level monitoring system.
Background technology
In order to ensure the safe operation of electrical network, improve power supply quality, the on-line monitoring of power equipment and safety
Early warning is by the most attention of people.Oil level is one of important monitoring parameter of power transformer, sends out in time
Existing oil level is too low or too high and takes corresponding measure for guaranteeing that power transformer safe operation has important meaning
Justice.According to the principle that temperature of oil in transformer is higher than air themperature, infrared imaging device is utilized clearly to monitor
Oil level in the conservator of transformator.Current most infrared detection method still uses staff
Equipment is periodically patrolled and examined by hand-held infrared measurement of temperature or Image-forming instrument, time and effort consuming.Occur in recent years is remote
Journey frequency image monitoring system, realizes regularly patrolling and examining, to a certain extent by fixing infrared camera
Decrease manual labor's amount.But, infrared camera is necessarily mounted near transformator and could effectively obtain
Taking conservator thermal-induced imagery, its photoelectric conversion process is inevitably disturbed by surrounding strong-electromagnetic field.
Utility model content
The purpose of this utility model is to provide the transformer oil level monitoring of a kind of electrically-based equipment infrared image
System, this system can be monitored transformer oil level by automatic on-line, and be had stronger anti-electromagnetic interference capability.
According to above-mentioned utility model purpose, the utility model proposes a kind of electrically-based equipment infrared image
Transformer oil level monitoring system, comprising:
First optical imaging device, it is located near the conservator of transformator;
Second optical imaging device;
Optical fiber image transmission beam, it has and is positioned at the input end face of first this side of optical imaging device and is positioned at
The output end face of second this side of optical imaging device;
Infrared Detectors, it is located near the second optical imaging device;
Controlling device, it is connected with described Infrared Detectors;
Wherein, conservator infrared energy field is mapped to the defeated of optical fiber image transmission beam by the first optical imaging device
Entering end face, described conservator infrared energy field is transferred to output end face from input end face by optical fiber image transmission beam,
The conservator infrared energy field of described output end face is coupled into described red by described second optical imaging device
External detector, conservator infrared energy field is converted to corresponding optical information by described Infrared Detectors,
And transmit to controlling device.
The transformer oil level monitoring system of electrically-based equipment infrared image described in the utility model, its
First optical imaging device, optical fiber image transmission beam and are set between conservator and the Infrared Detectors of transformator
Two optical imaging devices, owing to described optical fiber image transmission beam can be configured so that longer transmission range, thus
Infrared Detectors need not be arranged near the conservator of transformator, to avoid strong-electromagnetic field environment, it is to avoid
Disturbed by strong-electromagnetic field;Meanwhile, described first optical imaging device, optical fiber image transmission beam and the second light
Learn imaging device and be passive optical device, there is stronger anti-electromagnetic interference capability;Therefore, this practicality
The transformer oil level monitoring system entirety of novel described electrically-based equipment infrared image has stronger resisting
Electromagnetic interference capability.
The transformer oil level monitoring system work of electrically-based equipment infrared image described in the utility model
Time, conservator infrared energy field is mapped to the input end face of optical fiber image transmission beam by the first optical imaging device,
Described conservator infrared energy field is transferred to output end face from input end face by optical fiber image transmission beam, and described
The conservator infrared energy field of described output end face is coupled into described infrared acquisition by two optical imaging devices
Device, conservator infrared energy field is converted to corresponding optical information, and passes by described Infrared Detectors
Transport to control device.Owing to the conservator of the transformator under running status significantly temperature can occur with surrounding
There is oil part also can form obvious temperature contrast, conservator with oil-free part inside degree difference, and conservator
Infrared energy field is corresponding with the temperature field on conservator surface, and therefore conservator infrared energy field is corresponding
Oil level in the conservator of transformator.It is red that described control device analyzes described conservator based on described optical information
External radiation energy field, thus realize the automatic on-line monitoring of transformer oil level.
Further, the transformer oil level monitoring of electrically-based equipment infrared image described in the utility model
In system, described Infrared Detectors includes:
Planar array optical-electrical converter, described second optical imaging device is by red for the conservator of described output end face
External radiation mixed-energy domain enters this planar array optical-electrical converter, and described planar array optical-electrical converter also will
Conservator infrared energy field is converted to the corresponding signal of telecommunication;
Signal processing unit, it is connected with described planar array optical-electrical converter, described signal processing unit
Conservator infrared energy field picture is generated according to the described signal of telecommunication;
Electro-optical modulation unit, it is connected with described signal processing unit, and described electro-optical modulation unit is by conservator
Infrared energy field picture is converted to corresponding described optical information.
In such scheme, described Infrared Detectors passes through planar array optical-electrical converter by conservator infra-red radiation
Energy field is converted to the corresponding signal of telecommunication, then is generated according to the described signal of telecommunication by signal processing unit
Conservator infrared energy field picture, finally by electro-optical modulation unit by described conservator infrared energy
Field picture is converted to corresponding optical information, thus conservator infrared energy field is converted to the most right
The described optical information answered.
Further, the transformer oil level monitoring of electrically-based equipment infrared image described in the utility model
In system, described first optical imaging device includes different the first lens of focal length and the second lens, described
The disc of conservator and the input end face correspondence respectively of described optical fiber image transmission beam are positioned at the first lens and the second lens
Focal plane on.
In such scheme, the first lens and the second lens constitute an optical lens group, usual described conservator
Disc and the input end face of described optical fiber image transmission beam lay respectively at described optical lens group both sides, and respectively
Being positioned on the focal plane of the first lens and the second lens, construct is as relation, so that the first optical imagery dress
Put the input end face that conservator infrared energy field is mapped to optical fiber image transmission beam.
Further, in the transformer oil level monitoring system of above-mentioned electrically-based equipment infrared image, institute
The focal length stating the first lens is f1, the focal length of described second lens is f2, the disc of described conservator is a diameter of
d1, a diameter of d of described input end face2, then the relation of four meets: d1f2It is slightly less than f1d2。
In such scheme, according to lens imaging principle, conservator infrared energy field is mapped to fibre optic image transmission
A diameter of d of imaging on the input end face of bundle1f2/f1, in order to obtain complete conservator infrared energy
Be mapped to picture, the diameter of this imaging should be slightly less than the diameter d of input end face2, i.e. d1f2/f1Value
It is slightly less than d2, namely d1f2It is slightly less than f1d2。
Further, in the transformer oil level monitoring system of aforementioned electrically-based equipment infrared image, institute
State the second optical imaging device and include different the 3rd lens of focal length and the 4th lens, described optical fiber image transmission beam
Output end face and described planar array optical-electrical converter corresponding the 3rd lens and the 4th lens of being positioned at respectively
On focal plane.
In such scheme, the 3rd lens and the 4th lens constitute an optical lens group, usual described optical fiber
Output end face and the described planar array optical-electrical converter of coherent fiber bundle lay respectively at described optical lens group two
Side, and lay respectively on the focal plane of the 3rd lens and the 4th lens, construct is as relation, so that second
The conservator infrared energy field of described output end face is coupled into described infrared acquisition by optical imaging device
Device.
Further, in the transformer oil level monitoring system of above-mentioned electrically-based equipment infrared image, institute
The focal length stating the 3rd lens is f3, the focal length of described 4th lens is f4, described output end face a diameter of
d3, the length of side of described planar array optical-electrical converter is d4, then the relation of four meets: d3f4It is slightly less than
f3d4。
In such scheme, described planar array optical-electrical converter is generally square.Former according to lens imaging
Reason, conservator infrared energy field is mapped to a diameter of of imaging on planar array optical-electrical converter
d3f4/f3, it being mapped to picture in order to obtain complete conservator infrared energy field, the diameter of this imaging should
When length of side d being slightly less than planar array optical-electrical converter4, i.e. d3f4/f3Value be slightly less than d4, namely d3f4Slightly
Less than f3d4。
Further, the transformer oil level monitoring of electrically-based equipment infrared image described in the utility model
In system, at least one and optical fiber of described first optical imaging device and the second optical imaging device
Coherent fiber bundle is encapsulated in same optical telescopic sleeve, to simplify site installation test, it is ensured that installation accuracy,
And it is convenient for carrying.
Further, the transformer oil level monitoring of electrically-based equipment infrared image described in the utility model
In system, described first optical imaging device, the second optical imaging device, optical fiber image transmission beam and infrared spy
Survey device to be all encapsulated in same optical telescopic sleeve, to simplify site installation test, it is ensured that installation accuracy,
And it is convenient for carrying.
Further, the transformer oil level monitoring of electrically-based equipment infrared image described in the utility model
In system, described optical fiber image transmission beam uses infrared chalcogenide glass material to make.
In such scheme, described optical fiber image transmission beam generally uses low-loss infrared chalcogenide glass material to make,
There is pliable and tough flexible characteristic, and resolution is high, to the transmission of described conservator infrared energy field not
Distortion.
The transformer oil level monitoring system of electrically-based equipment infrared image described in the utility model, its with
The advantage that traditional solution is compared includes:
(1) automatic on-line monitoring transformer oil level, substitutes Traditional Man and patrols and examines, save manpower, improve prison
Survey efficiency, real-time and accuracy, can find that oil level is too low or too high and takes corresponding measure pair in time
In guaranteeing power transformer safe operation;
(2) traditional it be arranged on the infrared camera near the conservator of transformator and be easily subject to strong-electromagnetic field and do
Disturbing, the Infrared Detectors in this utility model need not be arranged near the conservator of transformator, thus avoids being subject to
Disturb to strong-electromagnetic field, simultaneously as the first optical imaging device, the optical fiber image transmission beam of intermediate transmission media
And second optical imaging device be passive optical device, there is stronger anti-electromagnetic interference capability, because of
This, the transformer oil level monitoring system entirety tool of electrically-based equipment infrared image described in the utility model
There is higher anti-electromagnetic interference capability.
Accompanying drawing explanation
Fig. 1 is the transformer oil level monitoring system of electrically-based equipment infrared image described in the utility model
The first optical imaging device side structure schematic diagram under a kind of embodiment.
Fig. 2 is the transformer oil level monitoring system of electrically-based equipment infrared image described in the utility model
The second optical imaging device side structure schematic diagram under a kind of embodiment.
Detailed description of the invention
Electrically-based set described in the utility model below in conjunction with Figure of description and specific embodiment
The transformer oil level monitoring system of standby infrared image is described in further detail.
Fig. 1 illustrates the transformer oil level monitoring system of the electrically-based equipment infrared image of the present embodiment
First optical imaging device side structure, Fig. 2 illustrates the electrically-based equipment infrared image of the present embodiment
Second optical imaging device side structure of transformer oil level monitoring system.
Incorporated by reference to reference to Fig. 1 and Fig. 2, the transformer oil of the electrically-based equipment infrared image of the present embodiment
Level monitoring system, the automatic on-line for transformer oil level monitors, including: the first optical imaging device 2,
Second optical imaging device 4, optical fiber image transmission beam 3, Infrared Detectors 5 and control device 6, wherein:
First optical imaging device 2 includes the first lens 21 and the second lens 22 that focal length is different;Second optics
Imaging device 4 includes the 3rd lens 41 and the 4th lens 42 that focal length is different;Optical fiber image transmission beam 3 has
It is positioned at the input end face A of first this side of optical imaging device 2 and is positioned at the second optical imaging device 4
The output end face B of this side;Infrared Detectors 5, it includes the planar array optical-electrical converter being sequentially connected with
51, signal processing unit 52 and electro-optical modulation unit 53.
As it is shown in figure 1, in the present embodiment, the conservator 1 that transformator is located at by the first optical imaging device 2 is attached
Closely;The disc C of conservator 1 and the input end face A correspondence respectively of optical fiber image transmission beam 3 are positioned at the first lens 21
With on the focal plane of the second lens 22;The focal length of the first lens 21 is f1, the focal length of the second lens 22 is f2,
The a diameter of d of disc C of conservator 11, a diameter of d of input end face A2, the relation of four meets: d1f2Slightly
Less than f1d2。
As in figure 2 it is shown, in the present embodiment, Infrared Detectors 5 is located near the second optical imaging device 4,
Control device 6 to be connected with the electro-optical modulation unit 53 of Infrared Detectors 5;The outfan of optical fiber image transmission beam 3
Face B and plane array photoelectric transducer 51 are corresponding respectively is positioned at the 3rd lens 41 and Jiao of the 4th lens 42
On face;The focal length of the 3rd lens 41 is f3, the focal length of described 4th lens 42 is f4, output end face B
A diameter of d3, planar array optical-electrical converter 51 is square, and its length of side is d4, then the pass of four
System meets: d3f4It is slightly less than f3d4。
Below in conjunction with Fig. 1 and Fig. 2, work process and the installation and debugging of the present embodiment are illustrated.
When the transformer oil level monitoring system of the electrically-based equipment infrared image of the present embodiment works, first
The conservator infrared energy field of the disc C from conservator 1 is mapped to optical fiber and passes by optical imaging device 2
The input end face A of video beam 3, optical fiber image transmission beam 3 by this conservator infrared energy field from input end face A
Being transferred to output end face B, the second optical imaging device 4 is by the conservator infrared energy of output end face B
Field is coupled into the planar array optical-electrical converter 51 of Infrared Detectors 5, planar array optical-electrical converter 51
This conservator infrared energy field is converted to the corresponding signal of telecommunication, and signal processing unit 52 is according to this
The signal of telecommunication generates conservator infrared energy field picture, and electro-optical modulation unit 53 is by this conservator infrared energy
Amount field picture is converted to corresponding optical information, and transmits to controlling device 6.Due to the infrared spoke of conservator
Penetrate the oil level in the conservator 1 of energy field correspondence transformator, control device 6 and divide based on above-mentioned optical information
Analyse above-mentioned conservator infrared energy field, thus realize the automatic on-line monitoring of transformer oil level.
In the present embodiment, first optical imaging device the 2, second optical imaging device 4, optical fiber image transmission beam 3
All it is encapsulated in same optical telescopic sleeve with Infrared Detectors 5, wherein: the first optical imaging device 2
In the first lens 21 and the second lens 22 and the input end face A of optical fiber image transmission beam 3 between phase para-position
The relation of putting is fixed, and during in-site installation, adjusts f1Make f1Slightly larger than f2d1/d2, to meet d1f2It is slightly less than
f1d2, so that from the conservator infrared energy field complete map of disc C of conservator 1 to optical fiber
The input end face A of coherent fiber bundle 3;Second optical imaging device 4 and Infrared Detectors 5 are mutually permanently connected,
The 3rd lens the 41, the 4th in the output end face B of optical fiber image transmission beam 3, the second optical imaging device 4 are saturating
Planar array optical-electrical converter 51 in mirror 42 and external detector 5, signal processing unit 52, photoelectricity
The relative position relation of modulating unit 53 is fixed, and meets d3f4It is slightly less than f3d4, so that outfan
The conservator infrared energy field complete map of face B is also coupled into the planar array photoelectricity of Infrared Detectors 5
Transducer 51.
Above-mentioned optical telescopic sleeve can separate at optical fiber image transmission beam 3, during in-site installation, will comprise the first light
The optical telescopic sleeve part learning imaging device 2 is located near the conservator 1 of transformator, will comprise the second light and study
As the optical telescopic sleeve of device 4 is connected by optical fiber image transmission beam 3 partially away from on-the-spot electromagnetic interference region, centre
Connect.Optical fiber image transmission beam 3 uses low-loss infrared chalcogenide glass material to make.The photoelectricity of Infrared Detectors 5
Modulating unit 53 uses common single-mode fiber 7 by above-mentioned optical transmission of information to controlling device 6.
The transformer oil level monitoring system of the electrically-based equipment infrared image of the present embodiment is above-mentioned owing to using
Scheme, can monitor transformer oil level by automatic on-line, and have stronger anti-electromagnetic interference capability.
It should be noted that listed above is only specific embodiment of the utility model, it is clear that this practicality is new
Type is not limited to above example, has the similar change of many therewith.If those skilled in the art from
All deformation that this utility model disclosure directly derives or associates, all should belong to this utility model
Protection domain.
Claims (8)
1. the transformer oil level monitoring system of an electrically-based equipment infrared image, it is characterised in that including:
First optical imaging device, it is located near the conservator of transformator;
Second optical imaging device;
Optical fiber image transmission beam, it has input end face and the position being positioned at first this side of optical imaging device
Output end face in second this side of optical imaging device;
Infrared Detectors, it is located near the second optical imaging device;
Controlling device, it is connected with described Infrared Detectors;
Wherein, conservator infrared energy field is mapped to optical fiber image transmission beam by the first optical imaging device
Input end face, described conservator infrared energy field is transferred to output from input end face by optical fiber image transmission beam
End face, the conservator infrared energy field of described output end face is coupled by described second optical imaging device
Entering described Infrared Detectors, it is the most right that conservator infrared energy field is converted to by described Infrared Detectors
The optical information answered, and transmit to controlling device.
The transformer oil level monitoring system of electrically-based equipment infrared image the most as claimed in claim 1, it is special
Levying and be, described Infrared Detectors includes:
Planar array optical-electrical converter, described second optical imaging device is by the conservator of described output end face
Infrared energy field is coupled into this planar array optical-electrical converter, described planar array optical-electrical converter
Also conservator infrared energy field is converted to the corresponding signal of telecommunication;
Signal processing unit, it is connected with described planar array optical-electrical converter, described signal processing list
Unit generates conservator infrared energy field picture according to the described signal of telecommunication;
Electro-optical modulation unit, it is connected with described signal processing unit, and described electro-optical modulation unit is by oil
Pillow infrared energy field picture is converted to corresponding described optical information.
The transformer oil level monitoring system of electrically-based equipment infrared image the most as claimed in claim 1, it is special
Levying and be, described first optical imaging device includes different the first lens of focal length and the second lens, institute
The input end face correspondence respectively of the disc and described optical fiber image transmission beam of stating conservator is positioned at the first lens and
On the focal plane of two lens.
The transformer oil level monitoring system of electrically-based equipment infrared image the most as claimed in claim 3, it is special
Levying and be, the focal length of described first lens is f1, the focal length of described second lens is f2, described conservator
The a diameter of d of disc1, a diameter of d of described input end face2, then the relation of four meets: d1f2Slightly
Less than f1d2。
The transformer oil level monitoring system of electrically-based equipment infrared image the most as claimed in claim 2, it is special
Levying and be, described second optical imaging device includes different the 3rd lens of focal length and the 4th lens, institute
Output end face and the described planar array optical-electrical converter correspondence respectively of stating optical fiber image transmission beam are positioned at the 3rd
On the focal plane of lens and the 4th lens.
The transformer oil level monitoring system of electrically-based equipment infrared image the most as claimed in claim 5, it is special
Levying and be, the focal length of described 3rd lens is f3, the focal length of described 4th lens is f4, described output
A diameter of d of end face3, the length of side of described planar array optical-electrical converter is d4, then the relation of four is full
Foot: d3f4It is slightly less than f3d4。
The transformer oil level monitoring system of electrically-based equipment infrared image the most as claimed in claim 1, it is special
Levy and be, at least one and light of described first optical imaging device and the second optical imaging device
Fine coherent fiber bundle is encapsulated in same optical telescopic sleeve.
The transformer oil level monitoring system of electrically-based equipment infrared image the most as claimed in claim 1, it is special
Levy and be, described first optical imaging device, the second optical imaging device, optical fiber image transmission beam and infrared
Detector is all encapsulated in same optical telescopic sleeve.
Priority Applications (1)
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CN201620095554.9U CN205483170U (en) | 2016-01-29 | 2016-01-29 | Transformer oil position monitoring system based on power equipment infrared image |
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CN201620095554.9U CN205483170U (en) | 2016-01-29 | 2016-01-29 | Transformer oil position monitoring system based on power equipment infrared image |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105547408A (en) * | 2016-01-29 | 2016-05-04 | 国家电网公司 | Transformer oil level monitoring system based on power equipment infrared image |
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CN105547408A (en) * | 2016-01-29 | 2016-05-04 | 国家电网公司 | Transformer oil level monitoring system based on power equipment infrared image |
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