CN106324381A - Electric arc detection device - Google Patents
Electric arc detection device Download PDFInfo
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- CN106324381A CN106324381A CN201510400169.0A CN201510400169A CN106324381A CN 106324381 A CN106324381 A CN 106324381A CN 201510400169 A CN201510400169 A CN 201510400169A CN 106324381 A CN106324381 A CN 106324381A
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Abstract
The invention is applicable to the technical field of power equipment detection, and provides an electric arc detection device. The electric arc detection device comprises a focus lens, a signal processing and self-check signal generating system, and a first optical fiber connected between the focus lens and the signal processing and self-check signal generating system. The surface of the focus lens is provided with a phosphor layer which can be excited by ultraviolet light to produce visible light to be detected. The signal processing and self-check signal generating system comprises a signal processing module and a self-check signal generating module. The visible light to be detected produced by the phosphor layer under excitation of ultraviolet light is transmitted via the first optical fiber to the signal processing module for electric arc detection. Self-check visible light emitted by the self-check signal generating module is transmitted via the first optical fiber to the focus lens, reflected and then transmitted via the first optical fiber to the signal processing module for self-check. According to the invention, the ultraviolet-excited phosphor layer is arranged on the surface of the focus lens to produce visible light to be detected, there is no need to use an optical material with high ultraviolet transmissivity in the whole optical path, and the cost is reduced. The focus lens focuses the visible light to be detected, and large detection range and high sensitivity are achieved.
Description
Technical field
The invention belongs to Power System Faults Detection field, particularly to a kind of electric arc optical detection device.
Background technology
Development and the raising of network load demand along with China's power industry, it is desirable to Operation of Electric Systems process
The safety and stability of power supply is sent out in middle guarantee, provides the user reliable electric power resource.Yet with electric arc
Short trouble causes the event of heavy economic losses and casualties to happen occasionally.In order to prevent arc short circuit event
Barrier causes bigger harm, and fault is excised in general requirement within the protection act time less than 100 milliseconds.Electric arc
Along with photo effect in discharge process, ultraviolet can be radiated near infrared light, by only ultraviolet band being visited
The information surveyed, can avoid, owing to visible ray changes the erroneous judgement that may cause, having the advantages that reliability is high.
Chinese patent application CN102589689A discloses a kind of optical fiber electric arc optical detection with self-checking function
Device and detection method thereof.This device includes arc probe, optical fiber and photoelectric conversion unit.Its arc probe
Connected by optical fiber and optical-electrical converter, between optical window and the optical fiber of arc probe, be provided with fluorescent material,
Ultraviolet light can be changed into visible ray by fluorescent material, is realized the inspection of ultraviolet band blind to day by detection visible ray
Survey.But, common optical glass ultraviolet band blind to day absorbs strong, and uviol transmission blind to day
The optical material price that rate is high is sufficiently expensive, and the optical window material in the most above-mentioned patent necessarily causes cost
Rise.The detection device of a kind of New Arc light probe that Chinese patent CN204330913U proposes is by filtering
Device, flourescent sheet, mounting cylinder and optical fiber ST connector composition.Structure is relatively simple, and cost is relatively low,
But the region that can detect is smaller and sensitivity is low.It addition, detecting system also compares near power equipment
Danger, safety is the best.
In sum, prior art yet suffers from investigative range and sensitivity is the highest, cost is high, poor stability
Etc. problem, it is desirable to provide a kind of new detection device solves the problems referred to above.
Summary of the invention
It is an object of the invention to provide a kind of electric arc optical detection device, it is intended to meet simultaneously investigative range big,
Highly sensitive, low cost and the good requirement of safety.
The present invention is achieved in that a kind of electric arc optical detection device, including amasthenic lens, signal processing and
Self-test signal generation system and be connected to described amasthenic lens and described signal processing and self-test signal system
The first optical fiber between system, described amasthenic lens is provided with near the surface in arclight region to be detected can be by ultraviolet
Light excites the phosphor powder layer producing visible ray to be checked；Described signal processing and self-test signal generation system include letter
Number processing module and self-test signal generation module；Described phosphor powder layer is produced by the ultraviolet excitation in arclight
Visible ray to be checked carry out arclight detection through described first fiber-optic transfer to described signal processing module, described
The self-inspection visible ray that self-test signal generation module sends is the most anti-through described first fiber-optic transfer to described amasthenic lens
Penetrate, then carry out self-inspection through described first fiber-optic transfer to described signal processing module.
Electric arc optical detection device of the present invention produces at amasthenic lens surface configuration ultraviolet excited fluorescence bisque
Visible ray to be checked, amasthenic lens uses the material highly transmissive to visible ray, is not required to use in whole light path
The optical material that ultraviolet blind to day is highly transmissive, significantly reduces cost；By amasthenic lens, visible ray to be checked is entered
Line focusing, makes detectable range increase and highly sensitive；By the first optical fiber by signal processing and self-test signal
Generation system causes far-end, and safety is good；Passive optical sensors also can be used to receive visible ray, carry further
Rise its safety.
Accompanying drawing explanation
Fig. 1 is arclight structure of the detecting device schematic diagram () that the embodiment of the present invention provides；
Fig. 2 is arclight structure of the detecting device schematic diagram (two) that the embodiment of the present invention provides；
Fig. 3 is arclight structure of the detecting device schematic diagram (three) that the embodiment of the present invention provides；
Fig. 4 is arclight structure of the detecting device schematic diagram (four) that the embodiment of the present invention provides；
Fig. 5 is arclight structure of the detecting device schematic diagram (five) that the embodiment of the present invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
Below in conjunction with specific embodiment the present invention implemented and is described in detail:
Refer to Fig. 1～2, the embodiment of the present invention provides a kind of electric arc optical detection device, is used for detecting power train
System arc short circuit fault, it include amasthenic lens 1, signal processing and self-test signal generation system 2 and
It is connected to the first optical fiber 3 between amasthenic lens 1 and signal processing and self-test signal generation system 2, focuses on
Camera lens 1 is provided with phosphor powder layer 4 near the surface in arclight region to be detected, and this phosphor powder layer 4 can only be electric
Ultraviolet excitation in arc light produces visible ray to be checked, and can not be excited generation visible ray by the light of its all band.
This amasthenic lens 1 is the condenser lens highly transmissive to this visible ray to be checked.Signal processing and self-test signal occur
System 2 includes signal processing module 21 and self-test signal generation module 22.The fluorescence on amasthenic lens 1 surface
Bisque 4 is excited the visible ray to be checked of generation by the ultraviolet light (can be specifically solar blind UV) in arclight
Transmit to signal processing module 21 through the first optical fiber 3, to carry out arclight detection.Self-test signal generation module
The self-inspection visible ray that 22 send transmits to amasthenic lens 1 through the first optical fiber 3, and on this amasthenic lens 1 surface
Reflection passback, transmits to signal processing module 21 through the first optical fiber 3, to carry out self-inspection, it is judged that detection dress
Put and the most normally work.
This electric arc optical detection device amasthenic lens 1 surface configuration ultraviolet excited fluorescence bisque 4 produce to be checked can
See that light, amasthenic lens 1 use the material highly transmissive to visible ray, whole light path is not required to use day
The optical material that blind ultraviolet is highly transmissive, significantly reduces cost；By amasthenic lens 1, visible ray to be checked is carried out
Focus on, make detectable range increase and highly sensitive；By the first optical fiber 3 by signal processing and self-test signal
Generation system 2 causes far-end, and safety is good.
In the present embodiment, mounting cylinder 5 fixed-focus camera lens 1 and the first optical fiber 3, this peace can be used
Fitted tube 5 has two openings, and wherein, amasthenic lens 1 is installed on one end of mounting cylinder 5, the first optical fiber
The other end of mounting cylinder 5 is fixed in the end of 3, and the end face 31 of the first optical fiber 3 is centrally located at focusing
The focal point of camera lens 1.The visible ray to be checked making ultraviolet excited fluorescence bisque 4 produce can through amasthenic lens 1
To focus on the end face of the first optical fiber 3, and then it is internal to enter the first optical fiber 3.
In the present embodiment, signal processing module 21 mainly includes for receiving visible ray and being converted into electricity
The optical sensor 211 of signal, and for the signal processor 212 that this signal of telecommunication is processed.This enforcement
Example preferably employs passive optical sensors 211, prevents from causing danger when detecting device near power equipment, carries
The safety of high electric arc detecting device.Optical sensor 211 receives visible ray to be checked and self-inspection visible ray, by it
Being converted to voltage or current signal, this voltage or current signal transfer process to signal processor 212,
And then judge whether power system occurs arclight short circuit phenomenon, or judge whether this detection device event occurs
Barrier.
Further, the concrete structure of this signal processing and self-test signal generation system 2 can have multiple, makees
For the embodiment that the first is feasible, such as Fig. 2, by optical sensor 211 and the self-inspection of signal processing module 21
Signal generating module 22 is assemblied in one, and self-test signal generation module 22 is placed in center, by optical sensor
211 are placed in self-test signal generation module 22 around, and the self-inspection of self-test signal generation module 22 output is visible
Light is directly entered the first optical fiber 3, and visible ray to be checked and the self-inspection visible ray of the first optical fiber 3 output directly project
On the receiving plane of optical sensor 211.
Also comprise as the second embodiment, such as Fig. 3, this signal processing and self-test signal generation system 2
One spectroscope 23, this spectroscope 23 becomes 45 degree of angles to place, at signal relative to the outbound course of the first optical fiber 3
Reason module 21 and self-test signal generation module 22 set up the heteropleural being placed in spectroscope 23 separately.At spectroscope 23
Transmission direction arranges signal processing module 21, and the optical sensor 211 to major general's signal processing module 21 is arranged
In this transmission direction, self-test signal generation module 22 is arranged at the reflection direction of this spectroscope 23.Self-inspection
The self-inspection visible ray of signal generating module 22 output after spectroscope 23 reflects through the end of the first optical fiber 3
Face 32 enters the first optical fiber 3, the first optical fiber 3 the self-inspection visible ray returned and visible ray to be checked are through light splitting
Mirror 23 is transmitted through optical sensor 211.
As the third embodiment, such as Fig. 4, unlike the second embodiment, at spectroscope 23
Transmission direction self-test signal generation module 22 is set, the reflection direction at spectroscope 23 arranges signal processing
Module 21, self-test signal generation module 22 output self-inspection visible ray after spectroscope 23 transmission through first
The end face 32 of optical fiber 3 enters the first optical fiber 3, the first optical fiber 3 the self-inspection visible ray that returns and to be checked
Light reflexes to optical sensor 211 through spectroscope 23.
As the 4th kind of embodiment, as Fig. 5, signal processing and self-test signal generation system 2 also include with
The bonder 24 that first optical fiber 3 connects, self-test signal generation module 22 connects coupling by the second optical fiber 25
Device 24, the optical sensor 211 of signal processing module 21 connects bonder 24 by the 3rd optical fiber 26.The party
Case uses the transmission of all-fiber formula, can improve the utilization rate of luminous energy, improve sensitivity further.
Below it is only several embodiments of the embodiment of the present invention, but the present invention is not limited to above-mentioned embodiment party
Formula.Further, the self-inspection visible ray of above-mentioned self-test signal generation module 22 output, it is only used for detecting device
The most normally working, whether detection light path breaks down, and the self-inspection of detection device does not detects with arclight
Carry out simultaneously.And when the work of self-inspection with detection arclight is carried out simultaneously, in order to avoid blurring, can
In advance self-inspection visible ray is rationally arranged, be allowed to different from the characteristic of visible ray to be checked, in order to signal
Processing module 21 can differentiate self-inspection visible ray or the visible ray to be checked caused by arc short circuit fault, with
Exempt from the accuracy of impact detection.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (8)
1. an electric arc optical detection device, it is characterised in that include amasthenic lens, signal processing and self-inspection letter
Number generation system and being connected between described amasthenic lens and described signal processing and self-test signal generation system
The first optical fiber, described amasthenic lens is provided with near the surface in arclight region to be detected can be by ultraviolet excitation
Produce the phosphor powder layer of visible ray to be checked；Described signal processing and self-test signal generation system include signal processing
Module and self-test signal generation module；Described phosphor powder layer is to be checked by the ultraviolet excitation generation in arclight
Visible ray carries out arclight detection through described first fiber-optic transfer to described signal processing module, and described self-inspection is believed
Number the self-inspection visible ray that sends of module is occurred through described first fiber-optic transfer to described amasthenic lens and to reflect, then
Self-inspection is carried out through described first fiber-optic transfer to described signal processing module.
2. electric arc optical detection device as claimed in claim 1, it is characterised in that described amasthenic lens is installed
In one end of a mounting cylinder, the other end of described mounting cylinder is fixed in the end of described first optical fiber, and described
The end face of one optical fiber is centrally located at the focal point of described amasthenic lens.
3. electric arc optical detection device as claimed in claim 1, it is characterised in that described signal processing module
Including for receiving visible ray to be checked and self-inspection visible ray and being converted into the optical sensor of the signal of telecommunication, and
For the signal processor that the described signal of telecommunication is processed.
4. electric arc optical detection device as claimed in claim 3, it is characterised in that described optical sensor assembles
Around described self-test signal generation module, the self-inspection visible ray of described self-test signal generation module output is straight
Tapping into into described first optical fiber, visible ray to be checked and the self-inspection visible ray of described first optical fiber output directly project
On the receiving plane of described optical sensor.
5. the electric arc optical detection device as described in any one of claims 1 to 3, it is characterised in that described letter
Number process and self-test signal generation system also include a spectroscope, described self-test signal generation module and described letter
Number processing module sets up separately and is placed in described spectroscopical heteropleural.
6. the electric arc optical detection device as described in any one of claims 1 to 3, it is characterised in that described letter
Number process and self-test signal generation system also includes the bonder that is connected with described first optical fiber, described self-inspection letter
Number occurring module to connect described bonder by the second optical fiber, described signal processing module is by the 3rd optical fiber even
Connect described bonder.
7. the electric arc optical detection device as described in any one of claims 1 to 3, it is characterised in that described in treat
Inspection visible ray and described self-inspection visible ray have optics that is different and that can be differentiated by described signal processing module
Characteristic.
8. the electric arc optical detection device as described in any one of claims 1 to 3, it is characterised in that described purple
The wave band of outer light is day blind ultraviolet band.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106324381A true CN106324381A (en) | 2017-01-11 |
| CN106324381B CN106324381B (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510400169.0A Active CN106324381B (en) | 2015-07-09 | 2015-07-09 | A kind of electric arc optical detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106324381B (en) |
Cited By (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 |
| CN108226720A (en) * | 2017-12-19 | 2018-06-29 | 南京南瑞继保电气有限公司 | A kind of binary channels electric arc light detection unit |
| CN110346318A (en) * | 2019-08-19 | 2019-10-18 | 大连世有电力科技有限公司 | A kind of ultraviolet detector of long distance passive detection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000346705A (en) * | 1999-06-09 | 2000-12-15 | Nissin Electric Co Ltd | Arc light detector |
| US20030151414A1 (en) * | 2002-02-12 | 2003-08-14 | Shea John Joseph | Self-powered apparatus and method for optically detecting arcing faults in electric power systems in the presence of other light sources |
| CN101662137A (en) * | 2009-10-16 | 2010-03-03 | 严跃 | Method for detecting electric arc light and detection device therefor |
| 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 |
| 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 |
-
2015
- 2015-07-09 CN CN201510400169.0A patent/CN106324381B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000346705A (en) * | 1999-06-09 | 2000-12-15 | Nissin Electric Co Ltd | Arc light detector |
| US20030151414A1 (en) * | 2002-02-12 | 2003-08-14 | Shea John Joseph | Self-powered apparatus and method for optically detecting arcing faults in electric power systems in the presence of other light sources |
| CN101662137A (en) * | 2009-10-16 | 2010-03-03 | 严跃 | Method for detecting electric arc light and detection device therefor |
| 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 |
| 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 |
Cited By (4)
| 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 |
| CN108226720A (en) * | 2017-12-19 | 2018-06-29 | 南京南瑞继保电气有限公司 | A kind of binary channels electric arc light detection unit |
| CN110346318A (en) * | 2019-08-19 | 2019-10-18 | 大连世有电力科技有限公司 | A kind of ultraviolet detector of long distance passive detection |
| 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 |
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| Publication number | Publication date |
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| CN106324381B (en) | 2019-07-02 |
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