CN204115909U - Automatic early-warning grating transposed conductor - Google Patents
Automatic early-warning grating transposed conductor Download PDFInfo
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- CN204115909U CN204115909U CN201420388890.3U CN201420388890U CN204115909U CN 204115909 U CN204115909 U CN 204115909U CN 201420388890 U CN201420388890 U CN 201420388890U CN 204115909 U CN204115909 U CN 204115909U
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- temperature
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- Protection Of Transformers (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Automatic early-warning grating transposed conductor, mainly solving prior art cannot the technical barrier of measuring transformer product coiling hotspot temperature rise in real time.This product is on traditional transposed conductor basis, by the Novel electromagnetic wire product that the temperature rise of direct for grating measuring transformer coiling hotspot, temperature automatic warning device and transposed conductor technology combine.It comprises transposed conductor, automatic early-warning test macro.The inner insulating layer of above-mentioned transposed conductor set by transposed conductor core and its outside surface and external insulation layer form.In the longitudinal direction of above-mentioned transposed conductor leptoprosopy, the centre of inner insulating layer and external insulation layer is provided with optical fiber, and optical fiber is provided with grating.Above-mentioned automatic early-warning test macro, comprises wideband light source, optoisolator, coupling mechanism, fiber-optical grating temperature sensor, wavelength demodulation device and computer software analysis disposal system.When test point temperature changes, detected change and the temperature variation of wavelength by wavelength demodulation device, be input to computing machine afterwards and carry out Data Analysis Services, judge whether to produce extremely, play alarm function.
Description
Technical field
The utility model relates to a kind of grating transposed conductor, particularly a kind of can the automatic early-warning grating transposed conductor of automatic temperature measurement, can be applicable to the transformer of various electric pressure, be especially applied in the product winding of intelligent transformer.
Background technology
Transformer is owing to being in oepration at full load state for a long time, adopt full-enclosed structure again, often cause its each position heating, staff cannot measure some narrow and small position of inside transformer under many circumstances, as the temperature on the winding that often generates heat, if long-time running, cause heat generating components aging, directly threaten the safety of whole electrical network.Temperature, temperature rise are vital critical index, are almost the serviceable life which determining power transformer product, and or rather, the serviceable life of most power transformer depends on the hot(test)-spot temperature of Transformer Winding.But the method for traditional measuring transformer winding hottest spot temperature adds 13K on the basis of the medial temperature of winding, this 13K not yet directly verified so far is followed refer to decades.This traditional thermometric mode is owing to can not reflect the actual temperature of Transformer Winding really, cannot control in real time the operation conditions of transformer, can not the fault of Timeliness coverage transformer and hidden danger, the aging and serviceable life of prediction transformer that more cannot be correct.
Temperature of transformer winding method used is at present except above-mentioned traditional thermometric mode, and adopting many has Thermistor Temperature Measurement, thermocouple thermometric and infrared measurement of temperature.But winding is in the particular surroundings of high voltage, high-temperature, highfield and extremely strong electromagnetic interference (EMI), thermal resistance, thermocouple all have plain conductor signal transmission again, can to environments with Electro-Magnetic interference, therefore, plain conductor is in aging rear easy generation short circuit in oil for a long time.Infrared thermometer cannot be arranged in transformer can only the surface temperature of measuring transformer, and measurement result is influenced by ambient temperature.
Summary of the invention
The utility model is for the purpose of solving the problem, and mainly solving prior art cannot the technical barrier of measuring transformer product coiling hotspot temperature rise in real time.The utility model is on traditional transposed conductor basis, by the Novel electromagnetic wire product that the temperature rise of direct for grating measuring transformer coiling hotspot, temperature automatic warning device and transposed conductor technology combine.
For achieving the above object, the utility model adopts following technical proposals: automatic early-warning grating transposed conductor, comprises transposed conductor (1), automatic early-warning test macro.Above-mentioned transposed conductor (1) is made up of transposed conductor core (4) and the inner insulating layer (5) set by its outside surface and external insulation layer (6).In the longitudinal direction of above-mentioned transposed conductor (1) leptoprosopy, the centre of inner insulating layer (5) and external insulation layer (6) is provided with optical fiber (2), and optical fiber (2) is provided with grating (3).Above-mentioned automatic early-warning test macro, comprises wideband light source, optoisolator, coupling mechanism, fiber-optical grating temperature sensor, wavelength demodulation device and computer software analysis disposal system.Adopt the fiber-optical grating temperature sensor of multiple series connection in this system, these fiber-optic grating sensors can be connected in series, and also can carry out multiple-channel output.Optical fiber in fiber-optical grating temperature sensor and grating are resistant to elevated temperatures optical fiber and grating.The broadband optical signal sent by wideband light source through optoisolator and coupler transfer on the grating of serial connection, after the wavelength chooses of these gratings, the narrow band light of one group of different wave length is reflected, reflected light is received by the Tunable Fabry-Perot Filter in wavelength demodulation device through coupling mechanism again, again through LP filter filtering, through wavelength demodulation device, these wavelength are identified like this, obtain one group of temperature sensing information.When test point temperature changes, detected change and the temperature variation of wavelength by wavelength demodulation device, be input to computing machine afterwards and carry out Data Analysis Services, finally obtain the distribution situation of temperature.When monitoring point temperature reaches the dangerous temperature of Operation system setting, system sends automatic alarm alarm and communication message, plays the effect of giving warning in advance.
Feature of the present utility model and beneficial effect
The utility model makes grating and transposition access node close, then merges mutually with sensing early warning technology and test macro, forms a kind of novel transposed conductor product, is directly used in Transformer Winding.Measurement accuracy transformer running temperature and temperature can exceed the feature that capping and alarm intervene.This product can be widely used in the power transformer product winding of various electric pressure, is especially applied to intelligent transformer properties of product advantage more obvious.Adopt this series products can grasp the temperature conditions of winding when transformer runs in real time, the capability of overload for transformer provides foundation directly perceived, accesses the complicated harsh conditions such as the load big ups and downs caused with answering system summer peak meeting, new forms of energy; And the data analysis by detecting for a long time temperature field is the aging of correct Prediction power transformer product and life-span have tamped basis.Adopt this product can realize the self-protection of transformer, namely transformer running temperature exceed capping can and alarm intervention, improve transformer run and power supply reliability; And then reach optimization running state of transformer, effectively control cost, realize the object of economical operation.Have can in real time, fast by the interference of electromagnetic field, response time, measure accurately, pliability is good, flexible, anticorrosive, high temperature resistant, can be installed in rugged environment, as in inflammable and explosive environment, realize real safety monitoring.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model grating transposed conductor.
Fig. 2 be in Fig. 1 A-A to amplification schematic cross-section.
Fig. 3 is the schematic diagram of automatic early-warning test macro in the utility model.
Fig. 4 is fiber grating test philosophy figure.
Fig. 5 is structured flowchart of the present utility model.
Embodiment
Embodiment
With reference to Fig. 1-2, automatic early-warning grating transposed conductor, comprises transposed conductor 1, automatic early-warning test macro.Above-mentioned transposed conductor 1 is made up of transposed conductor core 4 and the inner insulating layer 5 set by its outside surface and external insulation layer 6.In the longitudinal direction of above-mentioned transposed conductor 1 leptoprosopy, the centre of inner insulating layer 5 and external insulation layer 6 is provided with optical fiber 2, and optical fiber 2 is provided with grating 3.
With reference to Fig. 3-5, above-mentioned automatic early-warning test macro, comprises wideband light source, optoisolator, coupling mechanism, fiber-optical grating temperature sensor, wavelength demodulation device and computer software analysis disposal system.Adopt the fiber-optical grating temperature sensor of multiple series connection in this system, these fiber-optic grating sensors can be connected in series, and also can carry out multiple-channel output.Under normal circumstances, every road exports can connect at most 20 temperature sensors or other type light gate sensor.The broadband optical signal sent by wideband light source is transferred on the fiber-optical grating temperature sensor grating of serial connection through optoisolator and three-dB coupler, after the wavelength chooses of these gratings, the narrow band light of one group of different wave length is reflected, reflected light is received by the Tunable Fabry-Perot Filter in wavelength demodulation device through three-dB coupler again, again through LP filter filtering, through wavelength demodulation device, these wavelength are identified like this, obtain one group of temperature sensing information.Above-mentioned reflection wavelength and temperature linear, the change of temperature can be reflected by the change of reflection wavelength.When test point temperature changes, detected change and the temperature variation of wavelength by wavelength demodulation device, be input to computing machine afterwards and carry out Data Analysis Services, finally obtain the distribution situation of temperature.When monitoring point temperature reaches the dangerous temperature of Operation system setting, system sends automatic alarm alarm and communication message, plays the effect of giving warning in advance.
Claims (4)
1. an automatic early-warning grating transposed conductor, it is characterized in that: it comprises transposed conductor (1), automatic early-warning test macro, above-mentioned transposed conductor (1) is made up of transposed conductor core (4) and the inner insulating layer (5) set by its outside surface and external insulation layer (6), in the longitudinal direction of above-mentioned transposed conductor (1) leptoprosopy, the centre of inner insulating layer (5) and external insulation layer (6) is provided with optical fiber (2), optical fiber (2) is provided with grating (3), above-mentioned automatic early-warning test macro, comprise wideband light source, optoisolator, coupling mechanism, fiber-optical grating temperature sensor, wavelength demodulation device and computer software analysis disposal system.
2. automatic early-warning grating transposed conductor as claimed in claim 1, it is characterized in that: the fiber-optical grating temperature sensor adopting multiple series connection in this automatic early-warning test macro, these fiber-optic grating sensors can be connected in series, also multiple-channel output can be carried out, the broadband optical signal sent by wideband light source through optoisolator and coupler transfer on the grating of serial connection, after the wavelength chooses of these gratings, the narrow band light of one group of different wave length is reflected, reflected light is received by the Tunable Fabry-Perot Filter in wavelength demodulation device through coupling mechanism again, again through LP filter filtering, through wavelength demodulation device, these wavelength are identified like this, obtain one group of temperature sensing information, when test point temperature changes, change and the temperature variation of wavelength is detected by wavelength demodulation device, be input to computing machine afterwards and carry out Data Analysis Services, finally obtain the distribution situation of temperature, when monitoring point temperature reaches the dangerous temperature of Operation system setting, system sends automatic alarm alarm and communication message, play the effect of giving warning in advance.
3. automatic early-warning grating transposed conductor as claimed in claim 1, is characterized in that: above-mentioned coupling mechanism adopts three-dB coupler.
4. automatic early-warning grating transposed conductor as claimed in claim 1, it is characterized in that: what above-mentioned optical fiber adopted is high-temperature resistant optical fiber, what above-mentioned grating adopted is high temperature resistant grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388890.3U CN204115909U (en) | 2014-07-15 | 2014-07-15 | Automatic early-warning grating transposed conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388890.3U CN204115909U (en) | 2014-07-15 | 2014-07-15 | Automatic early-warning grating transposed conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204115909U true CN204115909U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420388890.3U Active CN204115909U (en) | 2014-07-15 | 2014-07-15 | Automatic early-warning grating transposed conductor |
Country Status (1)
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| CN (1) | CN204115909U (en) |
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2014
- 2014-07-15 CN CN201420388890.3U patent/CN204115909U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110144 Babei Street, Xihe, Development Avenue, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee after: Shenyang Hongyuan Electromagnetic Wire Co., Ltd. Address before: 110144 Babei Street, Xihe, Development Avenue, Shenyang Economic and Technological Development Zone, Shenyang City, Liaoning Province Patentee before: Shenyang Hongyuan Magnet Wires Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |