CN102853933A - Loaded tapping switch temperature measurer - Google Patents
Loaded tapping switch temperature measurer Download PDFInfo
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- CN102853933A CN102853933A CN2012102858041A CN201210285804A CN102853933A CN 102853933 A CN102853933 A CN 102853933A CN 2012102858041 A CN2012102858041 A CN 2012102858041A CN 201210285804 A CN201210285804 A CN 201210285804A CN 102853933 A CN102853933 A CN 102853933A
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- optical fiber
- load ratio
- ratio bridging
- bridging switch
- thermal detector
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Abstract
The invention provides a loaded tapping switch temperature measurer, which comprises photochromic glass, wherein a diffusion plate and a light-gathering plate are arranged oppositely on the two faces of the photochromic glass; the diffusion plate and the light-gathering plate are provided with a first optical fiber and a second optical fiber respectively; and the first optical fiber and the second optical fiber are connected with the transmitting end and the receiving end of a light intensity analyzer arranged outside a loaded tapping switch. Due to the adoption of the loaded tapping switch temperature measurer, a high-temperature and high-electromagnetism environment in a loaded tapping switch oil chamber is eliminated effectively; and the loaded tapping switch temperature measurer has extremely high working stability.
Description
Technical field
The present invention relates to potential device monitoring device field, especially, is a kind of thermal detector for load ratio bridging switch.
Background technology
Load ratio bridging switch is a kind of switchgear that constant voltage is provided when the load variations for transformer.Its ultimate principle is exactly in the situation that guarantee not interrupt load electric current, realizes the switching between the tap in the Transformer Winding, thereby changes the number of turn of winding, i.e. the voltage ratio of transformer finally realizes the purpose of pressure regulation.In now power transmission and transformation industry, high-power transformer has all been installed on-load voltage regulating switch widely, and its quality of voltage to assurance system and user plays an important role.Developed country has mostly installed load ratio bridging switch to capacity at 10MVA and above transformer at present, and much more more and more China's electric system and user have also adopted ULTC.And load ratio bridging switch is its most critical, expensive components.
Because the operating voltage of load ratio bridging switch is very high, therefore thermal value is larger during its work, general load ratio bridging switch all is equipped with cooling system, it is cooled, the temperature detector of common cooling device uses the electronic temperature-sensing device, because load ratio bridging switch inside has high electromagnetic high-temperature, thus be easy to temperature detector is caused interference, so the temperature detector job stability is not high and very easily break down.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of load ratio bridging switch thermal detector, this temperature detector effectively overcomes the high electromagnetic environment of high temperature in the load tap changer oil chamber, has high job stability.
The technical solution adopted for the present invention to solve the technical problems is:
This load ratio bridging switch thermal detector comprises photochromic glass, the two sides of described photochromic glass is relatively set with diffuser plate and solar panel, be respectively arranged with the first optical fiber and the second optical fiber on described diffuser plate and the solar panel, described the first optical fiber be connected the transmitting terminal that optical fiber and one is arranged at the Intensity Analysis instrument of load ratio bridging switch outside and be connected with receiving end.
As preferably, the transmitting terminal of described Intensity Analysis instrument is coated with infrared absorption membrane.
As preferably, described infrared absorption layer is aluminium nitride film.
As preferably, the light source of the transmitting terminal of described Intensity Analysis instrument is led light source.
As preferably, the sensor devices of the receiving end of described Intensity Analysis instrument is photoresistance.
The invention has the advantages that:
Because whole temperature sensing device do not use electronic equipment in load tap changer oil chamber, so temperature detector is not subjected to the Gao Regao electromagnetic effect, so temperature detector has very strong interference free performance.
Description of drawings
Fig. 1 is the structural representation of an embodiment of a kind of load ratio bridging switch thermal detector of the present invention.
Among the figure: 100, photochromic glass; 110, diffuser plate; 120, solar panel; 210, the first optical fiber; 220, the second optical fiber; 300, Intensity Analysis instrument; 310, transmitting terminal; 320, receiving end.
Embodiment
The present invention is further described below in conjunction with drawings and Examples:
Figure 1 shows that the planform schematic diagram of an embodiment of this load ratio bridging switch thermal detector.
Such as Fig. 1, in the present embodiment, this load ratio bridging switch thermal detector comprises photochromic glass 100, the two sides of described photochromic glass 100 is relatively set with diffuser plate 110 and solar panel 120, be respectively arranged with the first optical fiber 210 and the second optical fiber 220 on described diffuser plate 110 and the solar panel 120, described the first optical fiber 210 be connected the transmitting terminal 310 that optical fiber 220 and one is arranged at the Intensity Analysis instrument 300 of load ratio bridging switch outside and be connected with receiving end 320.
Described photochromic glass 100 changes its color under the irradiation of suitable wavelength light, then recover the glass of its original color when removing light source.Photochromic glass 100 is to add photochromic material to make in frit.This material has two kinds of different molecules or electronic structure state, at visible region two kinds of different absorption coefficients are arranged, under the effect of light, can from a kind of Structure Transformation to another kind of structure, cause the reversible variation of color, the common silver halide photo chromic glass that contains, be in the sodium aluminum borate glass, to add a small amount of silver halide to make emulsion, add trace copper again, cadmium ion is made sensitizer, be melting into glass after, through proper temperature thermal treatment, make silver halide gather into microgranular and make.When it was subjected to ultraviolet ray or the irradiation of visible light shortwave, silver ion reduction was silver atoms, and some silver atoms are gathered into colloid and make the glass colour developing; After illumination stopped, under heat radiation or longwave optical (ruddiness or infrared) irradiation, silver atoms became silver ion and fades.
Described Intensity Analysis instrument 300 is for detecting light intensity and having the instrument that intensity of illumination is changed into relevant temperature.
Described diffuser plate 110 is common display diffuser plate, and described solar panel 120 is convex lens structures.
Above-mentioned load ratio bridging switch thermal detector, the transmitting terminal 310 of described Intensity Analysis instrument 300 is coated with aluminium nitride film, prevents that infrared ray that light source produces from disturbing the work of described photochromic glass 100.
Above-mentioned load ratio bridging switch thermal detector, the light source of the transmitting terminal of described Intensity Analysis instrument 300 are led light source.
Above-mentioned load ratio bridging switch thermal detector, the sensor devices of the receiving end of described Intensity Analysis instrument 300 are photoresistance.
Above-mentioned load ratio bridging switch thermal detector principle of work:
Light source is by the first optical fiber 210 incident diffuser plates 110, diffuser plate 110 is projected to photochromic glass 100 with light, photochromic glass 100 is subject to after the illumination dimmed, light transmission rate is reduced, after raising, temperature in the photochromic glass 110 residing load ratio bridging switches produces heat radiation and infrared radiation photochromic glass 100, rising along with temperature, photochromic glass 100 accommodations make light transmission rate raise thoroughly, the solar panel 120 of described photochromic glass 100 1 sides makes light enter the second optical fiber 220 after light is assembled, the second optical fiber 220 is with the receiving end 320 of light incident intensity analyser 300, described Intensity Analysis instrument 300 is judged the temperature of load ratio bridging switch inside by the light intensity that receives, because whole temperature detector does not use electronic equipment in load tap changer oil chamber, therefore temperature detector is not subjected to the Gao Regao electromagnetic effect.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. load ratio bridging switch thermal detector, it is characterized in that: comprise photochromic glass (100), the two sides of described photochromic glass (100) is relatively set with diffuser plate (110) and solar panel (120), be respectively arranged with the first optical fiber (210) and the second optical fiber (220) on described diffuser plate (110) and the solar panel (120), described the first optical fiber (210) be connected the transmitting terminal (310) that optical fiber (220) and one is arranged at the Intensity Analysis instrument (300) of load ratio bridging switch outside and be connected with receiving end (320).
2. load ratio bridging switch thermal detector according to claim 1, it is characterized in that: the transmitting terminal (310) of described Intensity Analysis instrument (300) is coated with infrared absorption membrane.
3. load ratio bridging switch thermal detector according to claim 2, it is characterized in that: described infrared absorption layer is aluminium nitride film.
4. load ratio bridging switch thermal detector according to claim 1, it is characterized in that: the light source of the transmitting terminal of described Intensity Analysis instrument (300) is led light source.
5. load ratio bridging switch thermal detector according to claim 1, it is characterized in that: the sensor devices of the receiving end of described Intensity Analysis instrument (300) is photoresistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102858041A CN102853933A (en) | 2012-08-13 | 2012-08-13 | Loaded tapping switch temperature measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102858041A CN102853933A (en) | 2012-08-13 | 2012-08-13 | Loaded tapping switch temperature measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102853933A true CN102853933A (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102858041A Pending CN102853933A (en) | 2012-08-13 | 2012-08-13 | Loaded tapping switch temperature measurer |
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| CN (1) | CN102853933A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393565A (en) * | 2014-12-04 | 2015-03-04 | 京东方科技集团股份有限公司 | Over-temperature protection device, method and electrical equipment |
| CN113012962A (en) * | 2021-03-29 | 2021-06-22 | 国家电网有限公司 | Device for conducting action signal of on-load tap-changer of transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007147493A1 (en) * | 2006-06-22 | 2007-12-27 | Berthold Detection Systems Gmbh | Test light source |
| CN101636646A (en) * | 2006-12-19 | 2010-01-27 | 维保监测系统公司 | Fibre optic temperature sensor |
| CN101639386A (en) * | 2009-09-08 | 2010-02-03 | 江苏省电力公司南京供电公司 | Load tap changer contact overheating fault diagnosis method and device |
| CN202793637U (en) * | 2012-08-13 | 2013-03-13 | 吴江市东泰电力特种开关有限公司 | On-load tap switch thermoscope |
-
2012
- 2012-08-13 CN CN2012102858041A patent/CN102853933A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007147493A1 (en) * | 2006-06-22 | 2007-12-27 | Berthold Detection Systems Gmbh | Test light source |
| CN101636646A (en) * | 2006-12-19 | 2010-01-27 | 维保监测系统公司 | Fibre optic temperature sensor |
| CN101639386A (en) * | 2009-09-08 | 2010-02-03 | 江苏省电力公司南京供电公司 | Load tap changer contact overheating fault diagnosis method and device |
| CN202793637U (en) * | 2012-08-13 | 2013-03-13 | 吴江市东泰电力特种开关有限公司 | On-load tap switch thermoscope |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393565A (en) * | 2014-12-04 | 2015-03-04 | 京东方科技集团股份有限公司 | Over-temperature protection device, method and electrical equipment |
| US9966489B2 (en) | 2014-12-04 | 2018-05-08 | Boe Technology Group Co., Ltd. | Overheat protection device, overheat protection method and electrical device |
| CN113012962A (en) * | 2021-03-29 | 2021-06-22 | 国家电网有限公司 | Device for conducting action signal of on-load tap-changer of transformer |
| CN113012962B (en) * | 2021-03-29 | 2023-01-24 | 国家电网有限公司 | Device for conducting action signal of on-load tap-changer of transformer |
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Application publication date: 20130102 |