CN208255350U - A kind of monitoring system using ultraviolet detector detection high-tension line corona - Google Patents
A kind of monitoring system using ultraviolet detector detection high-tension line corona Download PDFInfo
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- CN208255350U CN208255350U CN201820783359.4U CN201820783359U CN208255350U CN 208255350 U CN208255350 U CN 208255350U CN 201820783359 U CN201820783359 U CN 201820783359U CN 208255350 U CN208255350 U CN 208255350U
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- ultraviolet detector
- ultraviolet
- corona
- acquisition controller
- monitoring system
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Abstract
A kind of monitoring system using ultraviolet detector detection high-tension line corona, including optic probe, UV fiber, ultraviolet detector, acquisition controller and monitoring center；Optic probe is connected to ultraviolet detector by UV fiber, and several ultraviolet detectors are connected to acquisition controller, and acquisition controller connects monitoring center；Optic probe is mounted on the insulator connector that high voltage iron tower alignment generates corona, receives the arc light of corona release；Acquisition controller acquires the simulated photoelectric signal of ultraviolet detector, and by digital filtering, signal screening processing, data and alert status are transmitted to monitoring center.This equipment is detected using the ultraviolet light-spot type in day-old chick domain, is on the one hand avoided visible light interference, is improved reliability；On the other hand the solution of low cost is provided compared with ultraviolet imager grade height capital equipment.
Description
Technical field
The utility model belongs to high-tension line detection field, in particular to a kind of to detect high-tension line using ultraviolet detector
The monitoring system of corona.
Background technique
Corona discharge is most important still to show on radiation light characteristic other than generating typical sound thermal phenomenon；Insulation
The spectral characteristic and strength of discharge of surface-discharge have direct relation.Electric discharge can generate the gamut spectrum from ultraviolet to infrared,
Ambient air is interfered to form certain ultrasonic effect because of ionization.
Therefore, corona discharge detection technique mainly has infrared thermal imaging technique, ultrasonic corona detector, based on ultraviolet at present
The corona discharge Detection Techniques of spectrum and visual observation etc.
Infrared thermal imaging technique is the infrared energy for receiving measured target using infrared detector and optical imaging objective
Amount distribution figure, and reflect onto the light-sensitive element of infrared acquisition, so that Infrared Thermogram is obtained, this thermography and physical table
The heat distribution field in face is corresponding.Generally thermal infrared imager is exactly that be changed into can for the invisible infrared energy that issues of object
The thermal energy seen, the different colours above thermography represent the different temperatures of testee, can pass through the temperature of thermography point
Cloth finds out abnormal heating point.It the case where for equipment electric discharge, if being easy for the infrared figure it can be observed that corona discharge, says
Bright insulation of electrical installation state deteriorating degree is deep.Moreover infrared ray is also extremely strong in lamp, and use is infrared
If line monitor, caused by false detection rate will be very high
Ultrasonic detector is mainly used to search corona point exposed in an atmosphere.Under normal circumstances, this ultrasound
Wave detector is self-contained parabolic mirror, and the ultrasonic signal received is amplified, converted, and headphone monitor can be used by reaching
And the function of dial plate instruction, by the position of mobile detector, until discovery dial plate indicated value is maximum, headphones sound is most loud
Direction can determine the position of ultrasound source substantially.This is because ultrasonic wavelength is shorter, energy is more concentrated, directionality compared with
By force, it is positioned so comparing suitable for Partial Discharge Sources.
Ultraviolet imager is mainly to pass through to receive the ultraviolet light that observation, record corona and electric discharge position etc. largely radiate, shape
The insulation status and the defect of discovery insulator arrangement in time to indirect assessment running equipment are handled at image and by analysis.
Infrared detector or imager are unobvious for the observation effect of early stage corona discharge, because corona is a kind of shines
Surface shelf depreciation, ionization is generated due to air localized high intensity electric field.The process causes small heat, usually infrared
Detection cannot be found.Moreover influenced by periphery infra-red radiation very big, it is easy to judge by accident.
The ultrasonic signal that early stage corona discharge is discharged is extremely faint, vulnerable to interference and in the sky rapidly decaying, thus spirit
Sensitivity noise immunity is not high, should not be as the detecting early-warning of early stage corona signal, and is difficult to realize quantitative analysis, and general
It is acted on as aided detection.
Ultraviolet imagery is more advanced a kind of Detection Techniques at present, because the sun is in ultra-violet (UV) band corona spectrum peak
Radiation interference at (300nm-360nm) is greater than the UV intensity of early stage corona generation, needs to filter out blind from sun light day
Ultraviolet interference other than area, while the image device of day-old chick is extremely expensive, therefore the cost of various aspects is very high, causes to be difficult to
Therefore the main reason for large-scale popularization, should not also be used as real-time online equipment, be mostly used to hold inspection.
Utility model content
The purpose of this utility model is to provide it is a kind of using ultraviolet detector detection high-tension line corona monitoring system,
To solve the above problems.
To achieve the above object, the utility model uses following technical scheme:
A kind of monitoring system using ultraviolet detector detection high-tension line corona, including optic probe, UV fiber, purple
External detector, acquisition controller and monitoring center；Optic probe is connected to ultraviolet detector, several ultraviolet spies by UV fiber
It surveys device and is connected to acquisition controller, acquisition controller connects monitoring center；Optic probe is mounted on high voltage iron tower alignment and generates electricity
Dizzy insulator connector receives the arc light of corona release；Acquisition controller acquires the simulated photoelectric signal of ultraviolet detector, will count
According to being transmitted to monitoring center.
Further, acquisition controller includes that photoelectric conversion amplification processor, signal acquisition trigger controller and output connect
Mouthful；Photoelectric conversion amplification processor, signal acquisition trigger controller and output interface are sequentially connected, and ultraviolet detector connects photoelectricity
Convert amplification processor.
Further, output interface is RS485 interface.
Further, acquisition controller is connected with external power supply, and the voltage of external power supply is 12V.
Further, ultraviolet detector is nitridation ultraviolet detector, and detecting band is between 200nm-280nm.
Further, it is provided with display on monitoring center, is shown for showing the data received, and in graphical form
Out, early warning decision data are provided.
The utility model has following technical effect compared with prior art:
The utility model answering in terms of detecting high-tension apparatus shelf depreciation flashover by the ultraviolet optical sensing of day-old chick
With the technological means of new online detection instrument potential faults being provided for power supply department, with existing various other detection methods
Offer reference is provided, since this equipment is detected using the ultraviolet light-spot type in day-old chick domain, on the one hand avoids visible light
Interference improves reliability；On the other hand the solution of low cost is provided compared with ultraviolet imager grade height capital equipment, is needed
It wants input few very much, is achieved at low cost high-voltage line fault hidden danger on-line real time monitoring and early warning plane for power supply department
System provides a kind of effective solution.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Wherein: 1, optic probe；2, ultraviolet detector；3, UV fiber；4, acquisition controller；5, external power supply；6, it supervises
Control center；7, photoelectric conversion amplification processor；8, signal acquisition trigger controller；9, output interface.
Specific embodiment
Below in conjunction with attached drawing, the present invention will be further described:
Referring to Fig. 1, a kind of monitoring system using ultraviolet detector detection high-tension line corona, including optic probe 1,
UV fiber 3, ultraviolet detector 2, acquisition controller 4 and monitoring center 6；Optic probe 1 is connected to ultraviolet by UV fiber 3
Detector 2, several ultraviolet detectors 2 are connected to acquisition controller 4, and acquisition controller 4 connects monitoring center 6；Optic probe 1
It is mounted on the insulator connector that high voltage iron tower alignment generates corona, receives the arc light of corona release；Acquisition controller 4 acquires ultraviolet
Data and alert status are transmitted in monitoring by the simulated photoelectric signal of detector by digital filtering, signal screening processing
The heart 6.
Acquisition controller 4 includes photoelectric conversion amplification processor 7, signal acquisition trigger controller 8 and output interface 9；Light
Electricity conversion amplification processor 7, signal acquisition trigger controller 8 and output interface 9 are sequentially connected, and ultraviolet detector 2 connects photoelectricity
Convert amplification processor 7.
Output interface 9 is RS485 interface.
Acquisition controller 4 is connected with external power supply 5, and the voltage of external power supply 5 is 12V.
Ultraviolet detector 2 is nitridation ultraviolet detector, and detecting band is between 200nm-280nm.
It is provided with display on monitoring center 6, shows, mentions for showing the data received, and in graphical form
For early warning decision data.
Operating method:
In-site installation requires optic probe to be precisely directed to point being monitored, can be realized by one laser positioning pen of installation；
Meanwhile installation contains ultraviolet detector and its acquisition control box, it is desirable that earth shield is good, and strong electromagnetic is avoided to cause system work
Make abnormal or wrong report.
After the completion of whole installation and debugging, 12v power supply is connected, after acquisition control system is initialized, monitoring center passes through
Data protocol inquires corona data mode；Once it was found that issuing read the order of corona data protocol immediately with the presence of corona data.
Monitoring center can also screen required some parameters, such as corona pulse radix by issuing the acquisition of corona data
(for judge whether be false pulse foundation) etc. adjust monitoring effect.
Monitoring center is handled according to collected corona state and data by software, is mentioned with patterned data
Supply decision-making level, juxtaposition alert status signal etc..
Each component technical characteristics:
Optic probe: this component is mainly made of optical component, includes optically filtering piece, thoroughly ultraviolet lens, optical fiber
SMA905 connector etc..Effect is tentatively to filter out visible light and incident light is focused on optical fiber to receive on section, the view of fibre-optical probe
Angular region is+- 15 degree.
UV fiber: for transmitting the optical transport medium that ultraviolet spectra is greater than 200nm wave band.It is general only to use quartzy light
Fibre could be transmitted comprising the ultraviolet spectra including day-old chick wave band.Great advantage using optical fiber is its anti-high-voltage electromagnetic interference
Ability.
Ultraviolet detector: ultraviolet detector using advanced gallium nitride material in the world, detecting band 200-280nm it
Between, belong to sun day-old chick range, is the core component of detection device.
Acquisition controller: receiving ultraviolet light pulse for ultraviolet detector, is converted to the current pulse signal of negative sense, before menstruation
Reversed scaling circuit is set, forward voltage signal is obtained.It is filtered, then send the analog signal of amplification to micro- again
Controller does analog-to-digital conversion, and by programming, the signal for being every time more than certain level threshold (settable) is recorded as once
Pulse, if accumulation overall pulse number has been more than preset threshold value of warning, is determined as that corona discharge reaches in predetermined time interval
The critical point of potential faults, system starting alarm have been arrived, and the data of record have been stored in buffer memory area, while assisting according to communication
View, under the request of distance host, is sent to long-range master station for corresponding data and alarm signal by RS485 communication module.
Claims (6)
1. a kind of monitoring system using ultraviolet detector detection high-tension line corona, which is characterized in that including optic probe
(1), UV fiber (3), ultraviolet detector (2), acquisition controller (4) and monitoring center (6)；Optic probe (1) passes through ultraviolet
Optical fiber (3) is connected to ultraviolet detector (2), and several ultraviolet detectors (2) are connected to acquisition controller (4), acquisition controller (4)
It connects monitoring center (6)；Optic probe (1) is mounted on the insulator connector that high voltage iron tower alignment generates corona, receives corona and releases
The arc light put；Acquisition controller (4) acquires the simulated photoelectric signal of ultraviolet detector, sends data to monitoring center (6).
2. a kind of monitoring system using ultraviolet detector detection high-tension line corona according to claim 1, feature
It is, acquisition controller (4) includes photoelectric conversion amplification processor (7), signal acquisition trigger controller (8) and output interface
(9)；Photoelectric conversion amplification processor (7), signal acquisition trigger controller (8) and output interface (9) are sequentially connected, ultraviolet detection
Device (2) connects photoelectric conversion amplification processor (7).
3. a kind of monitoring system using ultraviolet detector detection high-tension line corona according to claim 2, feature
It is, output interface (9) is RS485 interface.
4. a kind of monitoring system using ultraviolet detector detection high-tension line corona according to claim 1, feature
It is, acquisition controller (4) is connected with external power supply (5), and the voltage of external power supply (5) is 12V.
5. a kind of monitoring system using ultraviolet detector detection high-tension line corona according to claim 1, feature
It is, ultraviolet detector (2) is nitridation ultraviolet detector, and detecting band is between 200nm-280nm.
6. a kind of monitoring system using ultraviolet detector detection high-tension line corona according to claim 1, feature
It is, monitoring center is provided with display on (6), shows, provides for showing the data received, and in graphical form
Early warning decision data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783359.4U CN208255350U (en) | 2018-05-24 | 2018-05-24 | A kind of monitoring system using ultraviolet detector detection high-tension line corona |
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| CN201820783359.4U CN208255350U (en) | 2018-05-24 | 2018-05-24 | A kind of monitoring system using ultraviolet detector detection high-tension line corona |
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| CN201820783359.4U Expired - Fee Related CN208255350U (en) | 2018-05-24 | 2018-05-24 | A kind of monitoring system using ultraviolet detector detection high-tension line corona |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988627A (en) * | 2019-12-06 | 2020-04-10 | 弦海（上海）量子科技有限公司 | Ultraviolet on-line remote real-time monitoring device for abnormal discharge of power transmission and transformation equipment |
| CN111141394A (en) * | 2020-01-20 | 2020-05-12 | 国网福建省电力有限公司宁德供电公司 | Aerial view wireless monitoring system of electric power high-voltage transmission line |
| CN111929550A (en) * | 2020-09-15 | 2020-11-13 | 海南电网有限责任公司电力科学研究院 | Partial discharge judgment device for power equipment |
| CN112255513A (en) * | 2020-10-10 | 2021-01-22 | 广东电网有限责任公司广州供电局 | Insulator pollution flashover monitoring device and method |
| CN112363029A (en) * | 2020-10-31 | 2021-02-12 | 国网天津市电力公司 | Equipment corona discharge online monitoring system and monitoring method thereof |
| CN117554768A (en) * | 2024-01-12 | 2024-02-13 | 广州南网科研技术有限责任公司 | Cable accessory partial discharge monitoring method |
-
2018
- 2018-05-24 CN CN201820783359.4U patent/CN208255350U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988627A (en) * | 2019-12-06 | 2020-04-10 | 弦海（上海）量子科技有限公司 | Ultraviolet on-line remote real-time monitoring device for abnormal discharge of power transmission and transformation equipment |
| CN111141394A (en) * | 2020-01-20 | 2020-05-12 | 国网福建省电力有限公司宁德供电公司 | Aerial view wireless monitoring system of electric power high-voltage transmission line |
| CN111929550A (en) * | 2020-09-15 | 2020-11-13 | 海南电网有限责任公司电力科学研究院 | Partial discharge judgment device for power equipment |
| CN111929550B (en) * | 2020-09-15 | 2023-08-22 | 海南电网有限责任公司电力科学研究院 | Power equipment partial discharge judging device |
| CN112255513A (en) * | 2020-10-10 | 2021-01-22 | 广东电网有限责任公司广州供电局 | Insulator pollution flashover monitoring device and method |
| CN112363029A (en) * | 2020-10-31 | 2021-02-12 | 国网天津市电力公司 | Equipment corona discharge online monitoring system and monitoring method thereof |
| CN117554768A (en) * | 2024-01-12 | 2024-02-13 | 广州南网科研技术有限责任公司 | Cable accessory partial discharge monitoring method |
| CN117554768B (en) * | 2024-01-12 | 2024-03-15 | 广州南网科研技术有限责任公司 | Cable accessory partial discharge monitoring method |
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| CF01 | Termination of patent right due to non-payment of annual fee |