CN201225930Y - Temperature measurement device for AC/DC arrester - Google Patents
Temperature measurement device for AC/DC arrester Download PDFInfo
- Publication number
- CN201225930Y CN201225930Y CNU2008201094097U CN200820109409U CN201225930Y CN 201225930 Y CN201225930 Y CN 201225930Y CN U2008201094097 U CNU2008201094097 U CN U2008201094097U CN 200820109409 U CN200820109409 U CN 200820109409U CN 201225930 Y CN201225930 Y CN 201225930Y
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- China
- Prior art keywords
- fiber
- temperature sensor
- optical
- optical grating
- grating temperature
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- Expired - Lifetime
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a temperature measuring device of an alternative-direct-current lightning arrestor, which is characterized in that the device comprises one or more optical-fiber grating temperature sensors, wherein, each optical-fiber grating temperature sensor is encapsulated in an encapsulation that is made of high heat-conducting rate material; the optical-fiber grating temperature sensors that are encapsulated in the encapsulation are distributed on a plurality of temperature measuring points of the alternative-direct-current lightning arrestor; each optical-fiber grating temperature sensor is connected with a signal demodulator through an optical fiber; the signal demodulator is connected with a computer through a netting wire. Through simple operation, the device can measure the internal temperature in the high pressure test and the proportion unit test of the alternative-direct-current lightning arrestor, and has high reliability and can be continuously operated for a long period of time.
Description
Technical field
The utility model 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 utility model provides a kind ofly carries 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 utility model is taked 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 utility model is owing to take above technical scheme, and it has the following advantages: 1, the utility model is easy and simple to handle, reliability is high, can move continuously for a long time.2, of the present utility model 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 the utility model structural representation
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the utility model comprises: 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 utility model 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 according to the gap of 2 of sensor probe and lightning arrester internal resistance sheets 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
42mm * 4mm,
75mm * 4mm,
The disk of 100mm * 4mm.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 utility model 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 utility model.
The utility model 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 utility model 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 utility model 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 utility model 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 has a high reliability, also can move continuously for a long time, solve the demand of this area 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 |
|---|---|---|---|
| CNU2008201094097U CN201225930Y (en) | 2008-07-23 | 2008-07-23 | Temperature measurement device for AC/DC arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201094097U CN201225930Y (en) | 2008-07-23 | 2008-07-23 | Temperature measurement device for AC/DC arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225930Y true CN201225930Y (en) | 2009-04-22 |
Family
ID=40598824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201094097U Expired - Lifetime CN201225930Y (en) | 2008-07-23 | 2008-07-23 | Temperature measurement device for AC/DC arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225930Y (en) |
-
2008
- 2008-07-23 CN CNU2008201094097U patent/CN201225930Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090422 |