CN202735000U - Portable gas insulated switchgear (GIS) busbar joint optical fiber grating temperature measuring device - Google Patents
Portable gas insulated switchgear (GIS) busbar joint optical fiber grating temperature measuring device Download PDFInfo
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- CN202735000U CN202735000U CN201220403079.9U CN201220403079U CN202735000U CN 202735000 U CN202735000 U CN 202735000U CN 201220403079 U CN201220403079 U CN 201220403079U CN 202735000 U CN202735000 U CN 202735000U
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- grating temperature
- optical fiber
- busbar joint
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- fiber grating
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Abstract
The utility model provides a portable gas insulated switchgear (GIS) busbar joint optical fiber grating temperature measuring device which comprises a broadband optical source emitter, an optical switch, an optoisolator, an optical coupler, an optical fiber grating temperature sensor, a demodulator, a display and a power manager, wherein the broadband optical source emitter, the optical switch, the optoisolator and the optical coupler are connected in sequence, the optical fiber grating temperature sensor and the demodulator are connected with the optical coupler, the display and the power manager are connected with the demodulator, and the power manager is also connected with the display. According to the portable gas insulated switchgear (GIS) busbar joint optical fiber grating temperature measuring device, reliability and sensitivity of GIS busbar joint temperature measurement are improved, and flexibility of GIS busbar joint optical fiber grating temperature measurement is improved.
Description
Technical field
The utility model relates to electric detection field, particularly relates to a kind of portable GIS busbar joint optical fiber grating temperature-measuring device.
Background technology
At present, GIS bus contact temperature detects the means adopt and mainly contains: observe the contact surface color, survey dc resistance method and infrared measurement of temperature method etc.Observe the contact surface color by observation window and judge the superheating phenomenon whether contact exists loose contact to cause, this method is directly perceived, but just may find will reach certain temperature the time, be affected by human factors larger, poor reliability;
Loop resistance measurement can be found the hot hidden danger of the potential mistake in junction by the mode of measuring circuit resistance, but must under the power failure condition, carry out, and detection is the Static Contact resistance in whole loop, the contact resistance that can not reflect each electric connecting point distributes, and can not reflect the variation of the contact resistance under the running status; Reliability is not high;
Infrared measurement of temperature is measured the object temperature value by the object infrared intensity, can realize non-contact measurement.But can only be used for measuring the body surface temperature, can not measure accurately the interior of articles temperature.And when measures ambient temperature too high/excessively low, when perhaps having a large amount of dust in the air, the sensitivity of infrared measurement of temperature and degree of accuracy all can variation.
The utility model content
The purpose of this utility model is to propose a kind of portable GIS busbar joint optical fiber grating temperature-measuring device, can improve reliability and the sensitivity of measurement; Can improve the dirigibility of GIS busbar joint optical fiber grating temperature-measuring.
For achieving the above object, the technical scheme of employing is:
A kind of portable GIS busbar joint optical fiber grating temperature-measuring device comprises: wideband light source transmitter, photoswitch, optoisolator, photo-coupler, fiber-optical grating temperature sensor, detuner, display and power supervisor;
Wherein, described wideband light source transmitter, described photoswitch, described optoisolator and the photo-coupler of being connected connect successively;
Described fiber-optical grating temperature sensor be connected detuner and be connected with described photo-coupler respectively;
Described display be connected power supervisor and be connected with described detuner respectively;
Described power supervisor also is connected with described display.
The utility model fully contacts fiber-optical grating temperature sensor with bus outer tube wall to be measured, by wideband light source transmitter emission of light, after the light that sends carries out the passage switching through photoswitch, enter grating temperature sensor via optoisolator and photo-coupler again, when the centre wavelength of incident light and fiber-optic grating sensor reflection wave is mated fully, fiber-optic grating sensor all can be to the photo-coupler reflected light, these reflected light enter detuner through coupling mechanism again, detuner carries out wavelength-division to reflected light to be processed, then carry out opto-electronic conversion, obtain measurement result through analog to digital conversion and digital signal processing; Compare traditional measuring method, utilize the utility model can improve the thermometric reliability of GIS busbar joint and sensitivity; Can improve the dirigibility of GIS busbar joint optical fiber grating temperature-measuring.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a structural representation of detuner in the utility model;
Fig. 3 is another structural representation of the present utility model;
Fig. 4 is another structural representation of the present utility model.
Embodiment
For ease of understanding the utility model, describe below in conjunction with accompanying drawing.
Please refer to Fig. 1, the utility model proposes a kind of portable GIS(Gas Insulated Switchgear, Cubicle Gas-Insulated Switchgear) busbar joint optical fiber grating temperature-measuring device comprises: wideband light source transmitter, photoswitch, optoisolator, photo-coupler, fiber-optical grating temperature sensor, detuner, display and power supervisor;
Wherein, wideband light source transmitter, photoswitch, optoisolator are connected with photo-coupler and are connected;
Fiber-optical grating temperature sensor is connected with photo-coupler with detuner and is connected;
Display is connected with detuner with power supervisor and is connected;
Power supervisor also is connected with display.
In embodiment, please refer to Fig. 2 therein, detuner comprises: volume phase grating, InGaAs linear array detector (indium gallium arsenide linear array detector), analog to digital converter, digital signal processor and storer; Wherein, volume phase grating connects photo-coupler and InGaAs linear array detector; The InGaAs linear array detector is connected with analog to digital converter; Analog to digital converter is connected with digital signal processor with storer and is connected; Digital signal processor is connected with display.
Principle of work of the present utility model is: fiber-optical grating temperature sensor is fully contacted with bus outer tube wall to be measured, by wideband light source transmitter emission of light, after the light that sends carries out the passage switching through photoswitch, enter grating temperature sensor via optoisolator and photo-coupler again, when the centre wavelength of incident light and fiber-optic grating sensor reflection wave is mated fully, fiber-optic grating sensor all can be to the photo-coupler reflected light, and these reflected light enter detuner through coupling mechanism again;
In detuner, volume phase grating carries out wavelength-division with reflected light to be processed, and reflected light is pressed the light intensity signal zone divide; The InGaAs linear array detector may detect the reflected light signal of different light intensity, and this light signal is carried out opto-electronic conversion, the electric signal that output has certain amplitude; Then send into the analog to digital converter of DSP CONTROL and change, digital signal processor uploads data to touch display and shows, and pass through memory stores data according to after being disposed.
Compare traditional measuring method, utilize the utility model can improve the thermometric reliability of GIS busbar joint and sensitivity; Can improve the dirigibility of GIS busbar joint optical fiber grating temperature-measuring.
Use for convenient, can use the absorption type fiber-optical grating temperature sensor, for example: the fiber-optical grating temperature sensor of horseshoe magnet absorption type; It can also be the differential optical fiber temperature sensor.
In addition, in order to improve the scope of application of the present utility model, a temperature prover is set also, please refer to Fig. 3, temperature prover is connected with the wideband light source transmitter; Temperature prover also is connected with volume phase grating.
The light that the wideband light source transmitter sends, enter simultaneously fiber-optical grating temperature sensor and temperature prover, detuner carries out demodulation to the reflected light of fiber-optical grating temperature sensor and temperature prover successively, and the signal after the demodulation is sent into digital signal processor through analog to digital conversion and processed.
In order to improve practicality of the present utility model, make things convenient for the staff in time to recognize the unusual condition of busbar joint temperature, an alarm can also be set, please refer to Fig. 4, described alarm is connected with described detuner.When the result of detuner, when namely the busbar joint temperature of actual measurement surpasses default alarm temperature value, send warning, with the prompting staff.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (5)
1. a portable GIS busbar joint optical fiber grating temperature-measuring device is characterized in that, comprising: wideband light source transmitter, photoswitch, optoisolator, photo-coupler, fiber-optical grating temperature sensor, detuner, display and power supervisor;
Wherein, described wideband light source transmitter, described photoswitch, described optoisolator and the photo-coupler of being connected connect successively;
Described fiber-optical grating temperature sensor be connected detuner and be connected with described photo-coupler respectively;
Described display be connected power supervisor and be connected with described detuner respectively;
Described power supervisor also is connected with described display.
2. portable GIS busbar joint optical fiber grating temperature-measuring device according to claim 1 is characterized in that described detuner comprises: volume phase grating, InGaAs linear array detector, analog to digital converter, digital signal processor and storer;
Wherein, described volume phase grating connects described photo-coupler and described InGaAs linear array detector; Described InGaAs linear array detector is connected with described analog to digital converter;
Described analog to digital converter be connected storer and be connected with described digital signal processor respectively;
Described digital signal processor is connected with described display.
3. portable GIS busbar joint optical fiber grating temperature-measuring device according to claim 1 is characterized in that described fiber-optical grating temperature sensor is the absorption type fiber-optical grating temperature sensor.
4. portable GIS busbar joint optical fiber grating temperature-measuring device according to claim 2 is characterized in that, described portable GIS busbar joint optical fiber grating temperature-measuring device also comprises: temperature prover; Wherein, described temperature prover is connected with described wideband light source transmitter; Described temperature prover also is connected with described volume phase grating.
5. according to claim 1 to 4 each described portable GIS busbar joint optical fiber grating temperature-measuring devices, it is characterized in that described portable GIS busbar joint optical fiber grating temperature-measuring device also comprises: alarm; Wherein, described alarm is connected with described detuner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220403079.9U CN202735000U (en) | 2012-08-14 | 2012-08-14 | Portable gas insulated switchgear (GIS) busbar joint optical fiber grating temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220403079.9U CN202735000U (en) | 2012-08-14 | 2012-08-14 | Portable gas insulated switchgear (GIS) busbar joint optical fiber grating temperature measuring device |
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| Publication Number | Publication Date |
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| CN202735000U true CN202735000U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220403079.9U Expired - Lifetime CN202735000U (en) | 2012-08-14 | 2012-08-14 | Portable gas insulated switchgear (GIS) busbar joint optical fiber grating temperature measuring device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728048A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical fiber sensing temperature detection device for bus connector |
| CN104316218A (en) * | 2014-10-31 | 2015-01-28 | 国家电网公司 | Method for improving accuracy in measuring temperature of casing of GIS disconnecting switch |
| CN104515620A (en) * | 2013-10-01 | 2015-04-15 | Lios技术有限公司 | Apparatus and method for monitoring a reactor surface |
| CN106841954A (en) * | 2017-03-31 | 2017-06-13 | 国网江苏省电力公司电力科学研究院 | A kind of GIS hot-spot fault simulation experimental provisions based on fiber grating real time temperature measurement |
| CN109341894A (en) * | 2018-11-27 | 2019-02-15 | 国网重庆市电力公司电力科学研究院 | A kind of GIS disconnecting switch shell grating fibers temperature sensor thermometric experimental provision |
-
2012
- 2012-08-14 CN CN201220403079.9U patent/CN202735000U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515620A (en) * | 2013-10-01 | 2015-04-15 | Lios技术有限公司 | Apparatus and method for monitoring a reactor surface |
| CN103728048A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical fiber sensing temperature detection device for bus connector |
| CN104316218A (en) * | 2014-10-31 | 2015-01-28 | 国家电网公司 | Method for improving accuracy in measuring temperature of casing of GIS disconnecting switch |
| CN106841954A (en) * | 2017-03-31 | 2017-06-13 | 国网江苏省电力公司电力科学研究院 | A kind of GIS hot-spot fault simulation experimental provisions based on fiber grating real time temperature measurement |
| CN109341894A (en) * | 2018-11-27 | 2019-02-15 | 国网重庆市电力公司电力科学研究院 | A kind of GIS disconnecting switch shell grating fibers temperature sensor thermometric experimental provision |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |