CN106324381B - A kind of electric arc optical detection device - Google Patents
A kind of electric arc optical detection device Download PDFInfo
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- CN106324381B CN106324381B CN201510400169.0A CN201510400169A CN106324381B CN 106324381 B CN106324381 B CN 106324381B CN 201510400169 A CN201510400169 A CN 201510400169A CN 106324381 B CN106324381 B CN 106324381B
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Abstract
The present invention is suitable for electric device maintenance technical field, provide a kind of electric arc optical detection device, including amasthenic lens, signal processing and self-test signal generating system and it is connected to the first optical fiber between the two, the surface of amasthenic lens is equipped with the phosphor powder layer that visible light to be checked can be generated by ultraviolet excitation, and signal processing and self-test signal generating system include that module occurs for signal processing module and self-test signal；Phosphor powder layer is transmitted to signal processing module through the first optical fiber by the visible light to be checked that ultraviolet excitation generates and carries out electric arc light detection, and the self-test visible light that module sending occurs for self-test signal is transmitted to amasthenic lens and reflects through the first optical fiber is transmitted to signal processing module progress self-test through the first optical fiber.The present invention generates visible light to be checked in amasthenic lens surface setting ultraviolet excited fluorescence powder layer, is not required to reduce costs using to ultraviolet highly transmissive optical material in entire optical path；Visible light to be checked is focused by amasthenic lens, investigative range is big and high sensitivity.
Description
Technical field
The invention belongs to Power System Faults Detection field, in particular to a kind of electric arc optical detection device.
Background technique
With the development of China's power industry and the raising of network load demand, it is desirable that guarantee during Operation of Electric Systems
The safety and stability for sending out power supply, provides reliable electric power resource for user.However due to arc short circuit failure cause it is great
The event of economic loss and casualties happens occasionally.Arc short circuit failure causes bigger harm in order to prevent, general to require
Protection act cuts off failure in the time less than 100 milliseconds.Along with luminous effect in arc discharge process, can radiate ultraviolet to close
Infrared light, to the information of ultraviolet band detection, can avoid changing the erroneous judgement that may cause due to visible light by only, have
The characteristics of high reliablity.
Chinese patent application CN102589689A disclose a kind of optical fiber electric arc optical detection device with self-checking function and
Its detection method.The device includes arc probe, optical fiber and photoelectric conversion unit.Its arc probe passes through optical fiber and photoelectric conversion
Device connection, is provided with fluorescent material, ultraviolet light can be converted to by fluorescent material can between the optical window and optical fiber of arc probe
It is light-exposed, the detection to day blind ultraviolet band is realized by detection visible light.However, common optical glass is to day blind ultraviolet band
It absorbs strongly, and to the high optical material of day blind uviol transmissivity, the price is very expensive, therefore the optics in above-mentioned patent
Window material necessarily leads to cost increase.A kind of detection dress for New Arc light probe that Chinese patent CN204330913U is proposed
It sets and is made of filtering apparatus, flourescent sheet, mounting cylinder and optical fiber ST connector.Structure is relatively simple, and cost is relatively low, but can
The region of detection is smaller and sensitivity is low.In addition, detection system close to power equipment also than relatively hazardous, safety is bad.
In conclusion the prior art still has the problems such as investigative range and sensitivity not high, at high cost, safety is poor,
It needs to provide the new detection device of one kind to solve the above problems.
Summary of the invention
The purpose of the present invention is to provide a kind of electric arc optical detection devices, it is intended to while meeting that investigative range is big, sensitivity
The good requirement of high, at low cost and safety.
The invention is realized in this way a kind of electric arc optical detection device, including amasthenic lens, signal processing and self-test signal
Generating system and the first optical fiber being connected between the amasthenic lens and the signal processing and self-test signal generating system,
The amasthenic lens is equipped with the fluorescence that visible light to be checked can be generated by ultraviolet excitation close to the surface in arclight region to be detected
Bisque；The signal processing and self-test signal generating system include that module occurs for signal processing module and self-test signal；It is described glimmering
Light bisque is transmitted to the signal processing through first optical fiber by the visible light to be checked that the ultraviolet excitation in arclight generates
Module carries out electric arc light detection, and the self-test signal occurs the self-test visible light that module issues and is transmitted to institute through first optical fiber
It states amasthenic lens and reflects, then be transmitted to the signal processing module through first optical fiber and carry out self-test.
Electric arc optical detection device of the present invention generates to be checked in amasthenic lens surface setting ultraviolet excited fluorescence powder layer
Visible light, amasthenic lens use the material highly transmissive to visible light, are not required in entire optical path using blind to day ultraviolet high saturating
The optical material penetrated, significantly reduces cost；Visible light to be checked is focused by amasthenic lens, make detectable range increase and
High sensitivity；Signal processing and self-test signal generating system are led into distal end by the first optical fiber, safety is good；Nothing also can be used
Source optical sensor receives visible light, further promotes its safety.
Detailed description of the invention
Fig. 1 is arclight structure of the detecting device schematic diagram (one) provided in an embodiment of the present invention；
Fig. 2 is arclight structure of the detecting device schematic diagram (two) provided in an embodiment of the present invention；
Fig. 3 is arclight structure of the detecting device schematic diagram (three) provided in an embodiment of the present invention；
Fig. 4 is arclight structure of the detecting device schematic diagram (four) provided in an embodiment of the present invention；
Fig. 5 is arclight structure of the detecting device schematic diagram (five) provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment:
Fig. 1~2 are please referred to, the embodiment of the present invention provides a kind of electric arc optical detection device, for detecting the electricity of electric system
Arc short trouble comprising amasthenic lens 1, signal processing and self-test signal generating system 2 and be connected to amasthenic lens 1 and letter
Number processing and self-test signal generating system 2 between the first optical fiber 3, surface of the amasthenic lens 1 close to arclight region to be detected
Equipped with phosphor powder layer 4, which can only generate visible light to be checked by the ultraviolet excitation in arclight, and cannot be by it
The light excitation of all band generates visible light.The amasthenic lens 1 is the condenser lens highly transmissive to the visible light to be checked.Signal processing
And self-test signal generating system 2 includes that module 22 occurs for signal processing module 21 and self-test signal.The fluorescence on 1 surface of amasthenic lens
The visible light to be checked that bisque 4 is generated by ultraviolet light (specifically the can be solar blind UV) excitation in arclight is through the first optical fiber 3
It is transmitted to signal processing module 21, to carry out electric arc light detection.Self-test visible light that module 22 issues occurs for self-test signal through the
One optical fiber 3 is transmitted to amasthenic lens 1, and returns in 1 surface reflection of amasthenic lens, is transmitted at signal by the first optical fiber 3
It manages module 21 and judges whether detection device works normally to carry out self-test.
The electric arc optical detection device generates visible light to be checked in 1 surface of amasthenic lens setting ultraviolet excited fluorescence powder layer 4, gathers
Zoom lens 1 use the material highly transmissive to visible light, are not required in entire optical path using ultraviolet highly transmissive optics blind to day
Material significantly reduces cost；Visible light to be checked is focused by amasthenic lens 1, makes detectable range increase and sensitivity
It is high；Signal processing and self-test signal generating system 2 are led into distal end by the first optical fiber 3, safety is good.
In the present embodiment, 5 fixed-focus camera lens 1 of a mounting cylinder and the first optical fiber 3 can be used, which has
Two open ends, wherein amasthenic lens 1 is installed on one end of mounting cylinder 5, and the another of mounting cylinder 5 is fixed in the end of the first optical fiber 3
One end, and the center of the end face 31 of the first optical fiber 3 is located at the focal point of amasthenic lens 1.Generate ultraviolet excited fluorescence powder layer 4
Visible light to be checked can focus on the end face of the first optical fiber 3 by amasthenic lens 1, and then enter inside the first optical fiber 3.
In the present embodiment, signal processing module 21 includes mainly for receiving visible light and being converted into electric signal
Optical sensor 211, and the signal processor 212 for being handled the electric signal.The present embodiment preferably uses passive light
Sensor 211 prevents from causing danger when detection device is close to power equipment, improves the safety of electric arc detecting device.Light passes
Sensor 211 receives visible light to be checked and self-test visible light, is converted into voltage or current signal, and the voltage or current signal pass
It transports to signal processor 212 to be handled, and then judges whether electric system occurs arclight short circuit phenomenon, or judge the inspection
Survey whether device breaks down.
Further, the signal processing and the specific structure of self-test signal generating system 2 can there are many, as the first
The optical sensor 211 and self-test signal of signal processing module 21 module 22 and are assemblied in by feasible embodiment, such as Fig. 2 occur
Self-test signal generation module 22 is placed in center, optical sensor 211 is placed in self-test signal and is occurred around module 22 by one,
Self-test signal occurs the self-test visible light that module 22 exports and is directly entered the first optical fiber 3, the visible light to be checked of the first optical fiber 3 output
It is directly projeced into self-test visible light on the receiving plane of optical sensor 211.
As second of embodiment, such as Fig. 3, the signal processing and self-test signal generating system 2 also include a spectroscope
23, which places relative to the outbound course of the first optical fiber 3 at 45 degree of angles, and signal processing module 21 and self-test signal occur
Module 22 sets up the heteropleural for being placed in spectroscope 23 separately.It, at least will letter in the transmission direction setting signal processing module 21 of spectroscope 23
The optical sensor 211 of number processing module 21 is set to the transmission direction, and self-test signal generation module 22 is set to the spectroscope
23 reflection direction.The self-test visible light that self-test signal generation module 22 exports is after the reflection of spectroscope 23 by the first optical fiber
3 end face 32 enters the first optical fiber 3, and the self-test visible light and visible light to be checked returned by the first optical fiber 3 is saturating by spectroscope 23
It is incident upon optical sensor 211.
As the third embodiment, such as Fig. 4, unlike second of embodiment, in the transmission side of spectroscope 23
Module 22 occurs to setting self-test signal, in the reflection direction setting signal processing module 21 of spectroscope 23, self-test signal occurs
The self-test visible light that module 22 exports end face 32 through the first optical fiber 3 enters the first optical fiber 3 after the transmission of spectroscope 23, by the
The self-test visible light and visible light to be checked of one optical fiber 3 passback reflex to optical sensor 211 by spectroscope 23.
As the 4th kind of embodiment, such as Fig. 5, signal processing and self-test signal generating system 2 further include and the first optical fiber 3
The coupler 24 of connection, self-test signal occur module 22 and connect coupler 24 by the second optical fiber 25, signal processing module 21
Optical sensor 211 connects coupler 24 by third optical fiber 26.The program is transmitted using all -fiber formula, and the benefit of luminous energy can be improved
With rate, sensitivity is further increased.
The above is only several embodiments of the embodiment of the present invention, but the present invention is not limited to the above-described embodiments.Into
One step, the self-test visible light that module 22 exports occurs for above-mentioned self-test signal, is only used for whether detection device works normally, and detects
Whether optical path breaks down, and the self-test of detection device does not carry out usually simultaneously with electric arc light detection.And when self-test and detection electric arc
When the work of light carries out simultaneously, in order to avoid blurring, self-test visible light rationally can be arranged in advance, be allowed to it is to be checked
The characteristic of visible light is different, can differentiate self-test visible light in order to signal processing module 21 or be drawn by arc short circuit failure
The visible light to be checked risen, in order to avoid influence the accuracy of detection.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of electric arc optical detection device, which is characterized in that including be used for transmission the amasthenic lens of visible light, signal processing and from
Inspection signal generating system and be connected between the amasthenic lens and the signal processing and self-test signal generating system the
One optical fiber, the amasthenic lens are to be checked visible equipped with that can only be generated by ultraviolet excitation close to the surface in arclight region to be detected
The phosphor powder layer of light；The signal processing and self-test signal generating system include that mould occurs for signal processing module and self-test signal
Block；The phosphor powder layer is transmitted to by the visible light to be checked of the ultraviolet excitation generation in arclight through first optical fiber described
Signal processing module carries out electric arc light detection, and the self-test visible light of module sending occurs for the self-test signal through first optical fiber
It is transmitted to the amasthenic lens and reflects, then be transmitted to the signal processing module through first optical fiber and carry out self-test.
2. electric arc optical detection device as described in claim 1, which is characterized in that the amasthenic lens is installed on a mounting cylinder
The other end of the mounting cylinder is fixed in one end, the end of first optical fiber, and the center of the end face of first optical fiber is located at
The focal point of the amasthenic lens.
3. electric arc optical detection device as described in claim 1, which is characterized in that the signal processing module includes for receiving
Visible light to be checked and self-test visible light and the optical sensor for being converted into electric signal, and for the electric signal
The signal processor of reason.
4. electric arc optical detection device as claimed in claim 3, which is characterized in that the optical sensor is assemblied in the self-test letter
Number occur around module, the self-test visible light that module output occurs for the self-test signal is directly entered first optical fiber, institute
The visible light to be checked and self-test visible light for stating the first optical fiber output are directly projeced on the receiving plane of the optical sensor.
5. electric arc optical detection device as described in any one of claims 1 to 3, which is characterized in that the signal processing and self-test
Signal generating system further includes a spectroscope, module occurs for the self-test signal and the signal processing module set up separately be placed in it is described
Spectroscopical heteropleural.
6. electric arc optical detection device as described in any one of claims 1 to 3, which is characterized in that the signal processing and self-test
Signal generating system further includes the coupler connecting with first optical fiber, and the self-test signal occurs module and passes through the second optical fiber
The coupler is connected, the signal processing module connects the coupler by third optical fiber.
7. electric arc optical detection device as described in any one of claims 1 to 3, which is characterized in that the visible light to be checked and institute
Stating self-test visible light has optical characteristics that is different and being differentiated by the signal processing module.
8. electric arc optical detection device as described in any one of claims 1 to 3, which is characterized in that the wave band of the ultraviolet light is
Day blind ultraviolet band.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400169.0A CN106324381B (en) | 2015-07-09 | 2015-07-09 | A kind of electric arc optical detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510400169.0A CN106324381B (en) | 2015-07-09 | 2015-07-09 | A kind of electric arc optical detection device |
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| CN106324381A CN106324381A (en) | 2017-01-11 |
| CN106324381B true CN106324381B (en) | 2019-07-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107340461A (en) * | 2017-06-30 | 2017-11-10 | 南京如拓电气有限公司 | A kind of high-reliability electrical arc probe |
| CN108226720B (en) * | 2017-12-19 | 2020-06-09 | 南京南瑞继保电气有限公司 | Double-channel arc light detection unit |
| CN110346318B (en) * | 2019-08-19 | 2023-12-22 | 大连世有电力科技有限公司 | Ultraviolet detection device for remote passive detection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662137A (en) * | 2009-10-16 | 2010-03-03 | 严跃 | Method for detecting electric arc light and detection device therefor |
| CN102589689A (en) * | 2012-03-12 | 2012-07-18 | 南京五石金传感技术有限公司 | Optical fiber electric arc optical detection device with self-checking function and detection method thereof |
| CN204330913U (en) * | 2014-12-01 | 2015-05-13 | 国家电网公司 | A kind of New Arc light probe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000346705A (en) * | 1999-06-09 | 2000-12-15 | Nissin Electric Co Ltd | Arc light detector |
| US6693438B2 (en) * | 2002-02-12 | 2004-02-17 | Eaton Corporation | Self-powered apparatus and method for optically detecting arcing faults in electric power systems in the presence of other light sources |
| CN201690226U (en) * | 2010-06-03 | 2010-12-29 | 保定市尤耐特电气有限公司 | Electric arc light signal acquiring device |
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2015
- 2015-07-09 CN CN201510400169.0A patent/CN106324381B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662137A (en) * | 2009-10-16 | 2010-03-03 | 严跃 | Method for detecting electric arc light and detection device therefor |
| CN102589689A (en) * | 2012-03-12 | 2012-07-18 | 南京五石金传感技术有限公司 | Optical fiber electric arc optical detection device with self-checking function and detection method thereof |
| CN204330913U (en) * | 2014-12-01 | 2015-05-13 | 国家电网公司 | A kind of New Arc light probe |
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