CN101329203A - Apparatus for measuring temperature of alternating current-direct current lightning arrestor - Google Patents
Apparatus for measuring temperature of alternating current-direct current lightning arrestor Download PDFInfo
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- CN101329203A CN101329203A CNA2008101170837A CN200810117083A CN101329203A CN 101329203 A CN101329203 A CN 101329203A CN A2008101170837 A CNA2008101170837 A CN A2008101170837A CN 200810117083 A CN200810117083 A CN 200810117083A CN 101329203 A CN101329203 A CN 101329203A
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- fiber
- temperature
- optical grating
- temperature sensor
- lightning arrester
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Abstract
The invention relates to a temperature measuring device of an AC/DC lightning arrester which is characterized in that the temperature measuring device comprises more than one optical fiber grating temperature sensors, which are enveloped in a closure that is made of materials with high heat conductivity, distributed on temperature measuring points of the AC/DC lightning arrester and connected with a signal demodulator by optical fiber, and the signal demodulator is connected with a computer by a network cable. The temperature measuring device of the AC/DC lightning arrester can implement internal temperature measurement of the AC/DC lightning arrester in the high-voltage test and temperature measurement in the unit test of lightning arrester proportion with simple and convenient operations, and has high reliability and long-time continuous running.
Description
Technical field
The present invention relates to the temperature measuring equipment of lightning arrester, particularly about a kind of apparatus for measuring temperature of alternating current-direct current lightning arrestor.
Background technology
The distribution of lightning arrester internal temperature and variation directly reflect the performance of lightning arrester in some cases, are related to its safe and stable operation.Lightning arrester all will apply higher voltage when operation and test, be difficult to use the contact temperature-measuring sensor of similar thermopair and so on directly to measure its temperature inside situation, and the error of Infrared survey temperature is bigger, and be difficult to test the distribution of whole lightning arrester internal temperature and the temperature of the ratio unit in the test, mostly existing optical fibre measuring method is to utilize sensor that temperature inversion is electric signal, after the electric light conversion, utilize the optical fiber long-distance transmissions, carry out opto-electronic conversion again, finally obtain temperature value.This metering system complex operation, reliability be relatively poor, be difficult to realize long-term continuous coverage.Therefore, demand urgently developing a kind of easy and simple to handle, reliability is high and the lightning arrester temperature measuring equipment of continuous coverage for a long time.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide and a kind ofly carry out that the AC/DC arrester interior temperature distribution is measured and section of an arrester thermometric apparatus for measuring temperature of alternating current-direct current lightning arrestor when testing.
For achieving the above object, the present invention takes following technical scheme: a kind of apparatus for measuring temperature of alternating current-direct current lightning arrestor, it is characterized in that comprising: more than one fiber-optical grating temperature sensor, each described fiber-optical grating temperature sensor is encapsulated in the encapsulation of being made by the high thermoconductivity material, be encapsulated in the temperature survey point that the interior described fiber-optical grating temperature sensor distribution of described encapsulation is arranged on AC/DC arrester, each described fiber-optical grating temperature sensor is connected with the signal (FBG) demodulator by optical fiber, and described signal (FBG) demodulator is connected with computing machine by netting twine.
Described encapsulation adopts metal to make, and it is shaped as sheet, strip or other shape that matches with the shape of described fiber-optical grating temperature sensor probe.
The quantity that is arranged on the described fiber-optical grating temperature sensor in the lightning arrester is one the road to 40 the tunnel.
The present invention is owing to take above technical scheme, and it has the following advantages: 1, the present invention is easy and simple to handle, reliability is high, can move continuously for a long time.2, of the present invention succeeding in developing, the measurement of temperature in the test of the measurement of internal temperature and section of an arrester in the time of can carrying out the AC/DC arrester high-potting.
Description of drawings
Fig. 1 is a structural representation of the present invention
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes: a plurality of fiber-optical grating temperature sensors 1, each fiber-optical grating temperature sensor 1 is installed in respectively in the Metal Packaging, each fiber-optical grating temperature sensor 1 of sealing is disposed between the resistor disc 2 of lightning arrester inside, forms to be evenly distributed on lightning arrester inside temperature survey point (fiber-optical grating temperature sensor 1 shown in the figure all has been encapsulated in the Metal Packaging) everywhere.Each fiber-optical grating temperature sensor 1 is connected with a signal (FBG) demodulator 4 by optical fiber 3 respectively, and signal (FBG) demodulator 4 is connected with a computing machine 6 by netting twine 5 again, and the data in real time that each fiber-optical grating temperature sensor 1 is measured is imported in the computing machine 6.Other is placed on wherein with the lightning arrester that an overcoat 7 will set fiber-optical grating temperature sensor 1.
The present invention is used for sealing being encapsulated as of fiber-optical grating temperature sensor 1 and uses the high metal sheet metal of heat-conduction coefficient; size is that the size and dimension in the gap of asking according to sensor probe and lightning arrester internal resistance sheet 2 designs; it can protect probe; bear the load-bearing when being pressed together between the resistor disc 2, the lead of being convenient to sensor probe is drawn with optical fiber 3 and is connected.In this example, encapsulation is the pie resistor disc that the employing steel material that matches with the shape of sensor probe is made, and specifically is of a size of
Disk.If irregularly shaped, also can adopt the encapsulation of rectangular shape, in a word, the shape and size of encapsulation can adopt different designs as required, seal sensor probe and can make the lightning arrester temperature inside conduct to sensor probe smoothly as long as can reach.
In the present embodiment, fiber-optical grating temperature sensor 1 adopts the FBG-T model, and signal (FBG) demodulator 4 adopts the Sm125-500 model, all can directly buy from the market.But fiber-optical grating temperature sensor 1 of the present invention and signal (FBG) demodulator 4 are not limited in above-mentioned disclosed model, and all products that can realize that said function reaches identical effect all can be used in the present invention.
The present invention can decide the quantity of the fiber-optical grating temperature sensor 1 that is arranged in the lightning arrester according to kind, the size of sensor, can expand to Si Shilu at most, can satisfy existing various forms of lightning arrester and use.
The present invention is when measuring, and the temperature of lightning arrester resistor disc 2 conducts to fiber-optical grating temperature sensor 1 by the encapsulation with high thermoconductivity, makes the temperature of fiber-optical grating temperature sensor 1 consistent with the temperature of resistor disc 2.Because variation of temperature can cause the variation of optical grating reflection optical wavelength, the temperature-sensing probe of fiber-optical grating temperature sensor 1 is transferred to signal (FBG) demodulator 4 by optical fiber 3 with the reflected light wavelength signals that obtains, signal (FBG) demodulator 4 is measured catoptrical wavelength, and wavelength variations is converted into temperature value.Because the wavelength of fiber-optical grating temperature sensor 1 changes with temperature linearity, calibration reference wavelength under the reference temperature of setting, and calibrate its linear coefficient in advance, the wavelength that utilizes signal (FBG) demodulator 4 to measure under the dut temperature again, and then carry out simple linearity by computing machine 6 and calculate dut temperature, and the output temperature curve, can finish functions such as measurement, demonstration, record automatically.
The present invention adopts fiber-optical grating temperature sensor to measure the variation of AC/DC arrester temperature inside, utilize optical signal transmission, wavelength variations (being that spectral line changes) is transferred to the signal (FBG) demodulator carry out the photosignal conversion, be converted to the computer-readable signal, finish data analysis by computing machine, obtain the monitoring temperature curve.Make the present invention only need be thus by easy operation, just the measurement of temperature in the test of the measurement of internal temperature and section of an arrester in the time of can carrying out the AC/DC arrester high-potting, and have high reliability, and also can move continuously for a long time, solved the demand of this area to temperature measuring equipment.
Claims (3)
1, a kind of apparatus for measuring temperature of alternating current-direct current lightning arrestor, it is characterized in that comprising: more than one fiber-optical grating temperature sensor, each described fiber-optical grating temperature sensor is encapsulated in the encapsulation of being made by the high thermoconductivity material, be encapsulated in the temperature survey point that the interior described fiber-optical grating temperature sensor distribution of described encapsulation is arranged on AC/DC arrester, each described fiber-optical grating temperature sensor is connected with the signal (FBG) demodulator by optical fiber, and described signal (FBG) demodulator is connected with computing machine by netting twine.
2, a kind of apparatus for measuring temperature of alternating current-direct current lightning arrestor as claimed in claim 1 is characterized in that: described encapsulation adopts metal to make, and it is shaped as sheet, strip or other shape that matches with the shape of described fiber-optical grating temperature sensor probe.
3, a kind of apparatus for measuring temperature of alternating current-direct current lightning arrestor as claimed in claim 1 is characterized in that: the quantity that is arranged on the described fiber-optical grating temperature sensor in the lightning arrester is one the road to 40 the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101170837A CN101329203A (en) | 2008-07-23 | 2008-07-23 | Apparatus for measuring temperature of alternating current-direct current lightning arrestor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101170837A CN101329203A (en) | 2008-07-23 | 2008-07-23 | Apparatus for measuring temperature of alternating current-direct current lightning arrestor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101329203A true CN101329203A (en) | 2008-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101170837A Pending CN101329203A (en) | 2008-07-23 | 2008-07-23 | Apparatus for measuring temperature of alternating current-direct current lightning arrestor |
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| CN (1) | CN101329203A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759405A (en) * | 2012-06-28 | 2012-10-31 | 河南省电力公司信阳供电公司 | Optical-fiber infrared temperature measuring device of arrester |
| CN102818956A (en) * | 2012-08-16 | 2012-12-12 | 大连世有电力科技有限公司 | Lightning arrester online monitoring system with hot-spot detection |
| CN102879665A (en) * | 2012-08-28 | 2013-01-16 | 中国电力科学研究院 | Pollution test method for direct current lightning arrester |
| CN104614602A (en) * | 2015-01-07 | 2015-05-13 | 国家电网公司 | Online monitoring device for arrester |
| CN104977031A (en) * | 2015-07-14 | 2015-10-14 | 中国电子科技集团公司第八研究所 | Fiber grating sensor packaging structure and packaging method |
| CN105021232A (en) * | 2015-08-06 | 2015-11-04 | 南阳高新区天成电气设备有限公司 | Method and device of humiture on-line monitoring of metal-oxide surge arrester |
-
2008
- 2008-07-23 CN CNA2008101170837A patent/CN101329203A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759405A (en) * | 2012-06-28 | 2012-10-31 | 河南省电力公司信阳供电公司 | Optical-fiber infrared temperature measuring device of arrester |
| CN102818956A (en) * | 2012-08-16 | 2012-12-12 | 大连世有电力科技有限公司 | Lightning arrester online monitoring system with hot-spot detection |
| CN102879665A (en) * | 2012-08-28 | 2013-01-16 | 中国电力科学研究院 | Pollution test method for direct current lightning arrester |
| CN102879665B (en) * | 2012-08-28 | 2016-01-20 | 中国电力科学研究院 | A kind of direct current arrester pollution test method |
| CN104614602A (en) * | 2015-01-07 | 2015-05-13 | 国家电网公司 | Online monitoring device for arrester |
| CN104614602B (en) * | 2015-01-07 | 2017-08-04 | 国家电网公司 | A kind of arrester on-Line Monitor Device |
| CN104977031A (en) * | 2015-07-14 | 2015-10-14 | 中国电子科技集团公司第八研究所 | Fiber grating sensor packaging structure and packaging method |
| CN105021232A (en) * | 2015-08-06 | 2015-11-04 | 南阳高新区天成电气设备有限公司 | Method and device of humiture on-line monitoring of metal-oxide surge arrester |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081224 |