CN201853104U - Gas insulation combined electrical apparatus monitoring system - Google Patents
Gas insulation combined electrical apparatus monitoring system Download PDFInfo
- Publication number
- CN201853104U CN201853104U CN 201020620356 CN201020620356U CN201853104U CN 201853104 U CN201853104 U CN 201853104U CN 201020620356 CN201020620356 CN 201020620356 CN 201020620356 U CN201020620356 U CN 201020620356U CN 201853104 U CN201853104 U CN 201853104U
- Authority
- CN
- China
- Prior art keywords
- gas
- combined electrical
- monitoring system
- electrical equipment
- gas insulated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A gas insulation combined electrical apparatus monitoring system comprises a gas insulation combined electrical apparatus and is characterized by further comprising an analysis device and a data transmission device, wherein the analysis device is connected with the gas insulation combined electrical apparatus and then is connected with the data transmission device. The monitoring system adopts the photoacoustic spectroscopy technology, is stable, can precisely detect the data, and is less influenced by environments. The monitoring of the monitoring system on sample gas belongs to undamaged monitoring and does not destroy gas density, SF6 concentration and the like in the gas insulation combined electrical apparatus. The monitoring system realizes the on-line monitoring on SF6 insulation devices such as gas insulation combined electrical apparatus and the like and judges the occurrence of faults according to the content of decomposition products of SF6 gas.
Description
Technical field
The utility model relates to a kind of gas insulated combined electrical equipment monitoring system.
Background technology
Gas insulated combined electrical equipment (GIS) is one of visual plant in the electric system.By shelf depreciation (PD) on-line monitoring to GIS, can effectively find the insulation defect of existence in the GIS, in time avoid the generation of insulation fault.But, make traditional PD detection method such as electrical measuring method, ultrasonic method be subject to on-the-spot electromagnetic noise interference influence because there are various strong interference in the scene.Superfrequency method (UHF) is though antijamming capability is stronger, and its quantitatively calibrating and pattern-recognition scheduling theory problem and gordian technique are still unresolved, is difficult to the insulation running status is made accurate judgement.Therefore, be necessary to seek antijamming capability strong, can be to GIS the state of insulation accurately theoretical model and the effective measuring method of assessment.Sulfur hexafluoride gas has good insulation and arc extinction performance, can reduce equipment size greatly as insulating medium, therefore is widely used in the equipment such as gas insulated combined electrical equipment and SF6 gas insulation breaker.Pure SF6 gas is inert gas colourless, tasteless, nontoxic, that do not fire, and the decomposition temperature of himself is greater than 500 degrees centigrade, and decomposition product is few under the situation of normal operation.
When in the SF6 equipment insulation fault taking place, the high-temperature electric arc of discharge generation makes SF6 gas generation decomposition reaction, generates multiple low-fluorine sulfides such as SF4, SF3, SF2 and S2F10.Because these SF6 analytes combine compounds such as the HF, the H2SO3 that generate and SO2 with moisture, all other insulation and metal material in the equipment are had the deep-etching effect, and then the acceleration insulation degradation, finally cause equipment generation catastrophic discontinuityfailure.
Studies show that the shelf depreciation that the different insulative defective causes can produce different decomposition chemical combination gas, decompose chemical combination gas ingredients, content accordingly and produce speed etc. also variant.Making like this comes the failure judgement type to become possibility by the component of analyzing decomposition product.Thereby, judge insulation defect type, character, degree and development trend by decomposing gas component and combination product.
Optoacoustic spectroscopy was suggested as far back as 1880, was in the seventies in 20th century but really begin to use.Optoacoustic spectroscopy is based on the spectral technique of optoacoustic effect, optoacoustic effect is to be produced by the gas molecule absorption of electromagnetic radiation, gas molecule absorbs specific wavelength (as infrared ray) back temperature and raises, immediately to discharge the mode de excitation of heat energy, the heat energy that discharges makes gas produce pressure wave, the proportional relation of the concentration of pressure wave intensity and gas molecule, gas with various molecular conecentration pressure wave difference can obtain the gas with various component concentrations by detecting the different pressures wave intensity.Compare with the traditional detection technology, optoacoustic spectroscopy can directly be measured uptake, has greatly improved detection sensitivity.Its principal feature is: 1) because the raising of detection sensitivity, can detect in extremely weak absorption place and obtain enough sensitivity, thereby can select the characteristic frequency spectrum that not disturbed by other component, improve the degree of accuracy and the accuracy of measuring; 2) because optoacoustic spectroscopy detect to use is capacitor type electret microphone, its sensitivity drift under normal temperature condition can guarantee in＜1% as detecting element.Microphone as detecting element, it is the same with semiconductor transducer cheap, and is more reliable and more stable than optical detection crystal, and improves the maintainability of system widely, therefore, the optoacoustic spectroscopy detection technique is specially adapted to the online detection of insulating gas component in the power equipment.Can improve simultaneously Electro Magnetic Compatibility, stability and the reliability of on-line monitoring method.
In the patent No. be: ZL200710144059.8, publication number: CN 101464671A, name is called: the apparatus and method of a kind of sulfur hexafluoride gas and the gas-monitoring of deriving monitoring thereof; This invention is made up of main frame and a plurality of transmitters of being attached thereto, main frame mainly comprises cabinet, touch-screen display, mainboard CPU, calendar clock device, voice device, nonvolatile memory, host power supply and the drive unit that links to each other with warning horn respectively at blower fan; This invention has designed the two comparison sulfur hexafluoride gas and the gas concentration monitoring circuits of deriving thereof of detecting of two-way, and the main sulfur hexafluoride gas and the gas concentration observation circuit of deriving thereof are compared, and has improved reliability greatly.Can connect multiple transmitter, have the independent monitoring capacity in a plurality of zones, and can realize interlock control as ventilation blower fan, temperature-dropping fan etc. a plurality of objects; Have data recording function, recorded and stored is carried out in the action of various warnings and controlling object, record has a power failure and does not lose; Can dock with supervisory control of substation software by connecting corresponding bitcom, realize remote signalling, the telemetry function of system; Characteristics such as it is light and handy that the present invention simultaneously also has structure, and installation and working service are convenient are a kind of desirable novel sulfur hexafluoride gas and the gas content monitoring device of deriving thereof.But its main application site is the sulfur hexafluoride canyon, is not to be applied in the combined electrical apparatus (GIS), and measuring accuracy lower.
In the patent No. be: ZL200910066672.1, publication number: CN101514960A, name is called: based on the SF6 detection system of optoacoustic spectroscopy; This invention is based on a kind of SF6 detection system of optoacoustic spectroscopy, it comprises closed air chamber, SF6 isolating switch, some gas leakage sampling pipes, autocontrol valve, multichannel gas gathering manifold and SF6 detection system control circuits, be characterized in: also comprise optoacoustic generator, laser instrument, the forward end seal in optoacoustic chamber is equipped with optical filter, the exhausr port be communicated with the optoacoustic chamber is set on housing, laser instrument is set in optical filter one side of relative optoacoustic generator.The cleaning air intake opening of optoacoustic generator is connected with scavenging pump.Have highly sensitively, long-term work is reliable and stable, and is simple in structure, and volume is little, is applicable to the on-line monitoring that SF6 switchgear such as SF6 isolating switch and hermetically sealed combined electrical apparatus SF6 gas leak.But it can only detect SF6 gas, can not detect the SF6 decomposition product, and main effect is that detected gas is leaked.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of and can overcome above-mentioned defective, the gas insulated combined electrical equipment monitoring system that can accurately monitor rapidly when SF6 gas in the gas insulated combined electrical equipment takes place to decompose.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of gas insulated combined electrical equipment monitoring system, comprise gas insulated combined electrical equipment, it is characterized in that: also comprise analytical equipment and data transmission device, analytical equipment connects data transmission device after connecting gas insulated combined electrical equipment.
Described analytical equipment comprises infrared light supply, chopper, optical filter, photoacoustic cell, microphone and single-chip microcomputer, sets gradually chopper and optical filter between infrared light supply and the photoacoustic cell, and microphone is arranged in the photoacoustic cell, and is connected with single-chip microcomputer.
Described data transmission device comprises controller and transceiver, and controller is connected with single-chip microcomputer and is connected network by transceiver.
Described microphone is a capacitor microphone.
After infrared light supply sends infrared ray process chopper and optical filter modulation optical filtering, project photoacoustic cell, tested gas enters photoacoustic cell by air intake opening, be recycled to gas insulated combined electrical equipment again by the gas outlet then, under ultrared irradiation, gas molecule is according to its characteristic absorption frequency absorption optical radiation when the photoacoustic cell for gas, and the optical radiation of its absorption is converted to heat energy, the fluctuation variation of gas temperature causes pressure surge, and pressure surge is monitored by microphone.Microphone is converted to electric energy with the pressure surge that monitors and is connected single-chip microcomputer by prime amplifier with lock-in amplifier, and single-chip microcomputer sends the concentration that electric power signal calculates the SF6 gas and the gas of deriving thereof according to microphone.
Single-chip microcomputer sends result of calculation to controller, and controller is sent on the network by transceiver, convenient real time record and observation to monitoring result.
The beneficial effect that the utility model had is: adopt optoacoustic spectroscopy, and system stability, it is accurate to detect data.Little interference by environment.Monitoring to sample gas is a non-destructive monitoring, can not destroy gas insulated combined electrical equipment internal gas density, SF6 concentration etc., has realized the on-line monitoring to SF6 insulator arrangements such as gas insulated combined electrical equipments, according to the generation of SF6 gas decomposition product content anticipation fault.
Description of drawings
Fig. 1 is the utility model structural representation; .
Among the figure: 1, infrared light supply; 2, chopper; 3, optical filter; 4, photoacoustic cell; 5, microphone; 6, single-chip microcomputer; 7, prime amplifier; 8, lock-in amplifier; 9, air intake opening; 10, gas outlet; 11, gas insulated combined electrical equipment; 12, controller; 13, transceiver;
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As shown in Figure 1: a kind of gas insulated combined electrical equipment monitoring system, comprise gas insulated combined electrical equipment 11, also comprise analytical equipment and data transmission device, analytical equipment connects gas insulated combined electrical equipment 11 backs and connects data transmission device.
Described analytical equipment comprises infrared light supply 1, chopper 2, optical filter 3, photoacoustic cell 4, microphone 5 and single-chip microcomputer 6, set gradually chopper 2 and optical filter 3 between infrared light supply 1 and the photoacoustic cell 4, microphone 5 is arranged in the photoacoustic cell 4, and is connected with single-chip microcomputer 6.
Described data transmission device comprises controller 12 and transceiver 13, and controller 12 is connected with single-chip microcomputer 6 and is connected network by transceiver 13.
Described microphone 5 is a capacitor microphone.
After infrared light supply 1 sends infrared ray process chopper 2 and optical filter 3 modulation optical filterings, project photoacoustic cell 4, tested gas enters photoacoustic cell 4 by air intake opening 9, be recycled to gas insulated combined electrical equipment 11 again by gas outlet 10 then, under ultrared irradiation, gas molecule is according to its characteristic absorption frequency absorption optical radiation when the photoacoustic cell 4 for gas, and the optical radiation of its absorption is converted to heat energy, the fluctuation variation of gas temperature causes pressure surge, and pressure surge is by microphone 5 monitorings.Microphone 5 is converted to electric energy with the pressure surge that monitors and is connected single-chip microcomputer 6 by prime amplifier 7 with lock-in amplifier 8, and single-chip microcomputer 6 sends the concentration that electric power signal calculates the SF6 gas and the gas of deriving thereof according to microphone 5.
Single-chip microcomputer 6 sends result of calculation to controller 12, and controller 12 is sent on the network by transceiver 13, convenient real time record and observation to monitoring result.
Single-chip microcomputer 6 adopts Atmega128, and controller 12 is selected the SJA1000 of Philips company for use, and the SJA1000 chip has BasicCAN and two kinds of working methods of PeliCAN, and the utility model adopts the BasicCAN pattern.
Transceiver 13 adopts 82C251, and this is a kind of high-speed bus transceiver of the 24V of being specially adapted for bus power source.
The PA mouth of Atmega128 links to each other with the AD0-AD7 of SJA1000 as the data address multiplexing port.The PC.7 mouth selects port CS, gating SJA1000 when PC.7 is low level as the sheet that the chip selection signal of SJA1000 is connected to SJA1000.Interrupt mode is adopted in the transmission of communication message and reception, the look-at-me port INT of SJA1000 links to each other with the external interrupt port INT0 of Atmega128, will be when SJA1000 receives bus data by this interrupt notification Atmega128, after interrupting, the Atmega128 response carries out corresponding data read operation.
Claims (5)
1. a gas insulated combined electrical equipment monitoring system comprises gas insulated combined electrical equipment, it is characterized in that: also comprise analytical equipment and data transmission device, analytical equipment connects data transmission device after connecting gas insulated combined electrical equipment.
2. gas insulated combined electrical equipment monitoring system according to claim 1, it is characterized in that: described analytical equipment comprises infrared light supply, chopper, optical filter, photoacoustic cell, microphone and single-chip microcomputer, set gradually chopper and optical filter between infrared light supply and the photoacoustic cell, microphone is arranged in the photoacoustic cell, and is connected with single-chip microcomputer.
3. gas insulated combined electrical equipment monitoring system according to claim 1 is characterized in that: described data transmission device comprises controller and transceiver, and controller is connected with single-chip microcomputer and is connected network by transceiver.
4. gas insulated combined electrical equipment monitoring system according to claim 2 is characterized in that: described microphone is a capacitor microphone.
5. gas insulated combined electrical equipment monitoring system according to claim 1 and 2 is characterized in that: described photoacoustic cell is provided with air intake opening and gas outlet, and air intake opening is connected with gas insulated combined electrical equipment with the gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020620356 CN201853104U (en) | 2010-11-23 | 2010-11-23 | Gas insulation combined electrical apparatus monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020620356 CN201853104U (en) | 2010-11-23 | 2010-11-23 | Gas insulation combined electrical apparatus monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201853104U true CN201853104U (en) | 2011-06-01 |
Family
ID=44095491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020620356 Expired - Fee Related CN201853104U (en) | 2010-11-23 | 2010-11-23 | Gas insulation combined electrical apparatus monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201853104U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661918A (en) * | 2012-05-28 | 2012-09-12 | 中国科学院电工研究所 | Off-resonance photoacoustic spectrometric detection and analysis device |
| CN102680412A (en) * | 2012-05-11 | 2012-09-19 | 江苏舒茨测控设备有限公司 | Method for detecting concentration of trace steam by using photoacoustic spectrometry method |
| CN102721645A (en) * | 2012-06-27 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Portable SF6 gas resolvent photoacoustic spectrum detecting device and method |
| CN103884672A (en) * | 2014-03-24 | 2014-06-25 | 国家电网公司 | SF6 gas decomposed product detection device and method based on photoacoustic spectrometry technology |
| CN103954578A (en) * | 2014-05-14 | 2014-07-30 | 江苏舒茨测控设备有限公司 | Photoacoustic spectrum detection device for detecting residual concentration of sulfuryl fluoride gas |
| CN103954580A (en) * | 2014-05-14 | 2014-07-30 | 江苏舒茨测控设备有限公司 | Photoacoustic spectrometry detection device for detecting concentration of trace water vapor |
| CN104422658A (en) * | 2013-08-29 | 2015-03-18 | 通用电气公司 | Method and system for detecting components in fluid |
| CN105988068A (en) * | 2016-07-15 | 2016-10-05 | 国网江苏省电力公司检修分公司 | Fault detection device for GIS equipment in high-voltage power transmission and transformation power station |
| CN110160982A (en) * | 2018-03-29 | 2019-08-23 | 浙江中越检测技术服务有限公司 | A kind of chemical gases methane concentration detection system |
| CN110208205A (en) * | 2019-06-03 | 2019-09-06 | 南京工业大学 | Photo-acoustic spectrometer device based on photoacoustic cell mechanism |
| CN112504971A (en) * | 2021-02-08 | 2021-03-16 | 湖北鑫英泰系统技术股份有限公司 | Photoacoustic spectrum identification method and device for characteristic gas in transformer oil |
-
2010
- 2010-11-23 CN CN 201020620356 patent/CN201853104U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680412A (en) * | 2012-05-11 | 2012-09-19 | 江苏舒茨测控设备有限公司 | Method for detecting concentration of trace steam by using photoacoustic spectrometry method |
| CN102680412B (en) * | 2012-05-11 | 2014-06-18 | 江苏舒茨测控设备有限公司 | Method for detecting concentration of trace steam by using photoacoustic spectrometry method |
| CN102661918A (en) * | 2012-05-28 | 2012-09-12 | 中国科学院电工研究所 | Off-resonance photoacoustic spectrometric detection and analysis device |
| CN102721645A (en) * | 2012-06-27 | 2012-10-10 | 山东电力集团公司电力科学研究院 | Portable SF6 gas resolvent photoacoustic spectrum detecting device and method |
| CN102721645B (en) * | 2012-06-27 | 2014-09-17 | 国网山东省电力公司电力科学研究院 | Portable SF6 gas resolvent photoacoustic spectrum detecting device and method |
| CN104422658A (en) * | 2013-08-29 | 2015-03-18 | 通用电气公司 | Method and system for detecting components in fluid |
| CN104422658B (en) * | 2013-08-29 | 2019-07-05 | 通用电气公司 | Detect the method and system of the component in fluid |
| CN103884672A (en) * | 2014-03-24 | 2014-06-25 | 国家电网公司 | SF6 gas decomposed product detection device and method based on photoacoustic spectrometry technology |
| CN103954580A (en) * | 2014-05-14 | 2014-07-30 | 江苏舒茨测控设备有限公司 | Photoacoustic spectrometry detection device for detecting concentration of trace water vapor |
| CN103954578A (en) * | 2014-05-14 | 2014-07-30 | 江苏舒茨测控设备有限公司 | Photoacoustic spectrum detection device for detecting residual concentration of sulfuryl fluoride gas |
| CN105988068A (en) * | 2016-07-15 | 2016-10-05 | 国网江苏省电力公司检修分公司 | Fault detection device for GIS equipment in high-voltage power transmission and transformation power station |
| CN110160982A (en) * | 2018-03-29 | 2019-08-23 | 浙江中越检测技术服务有限公司 | A kind of chemical gases methane concentration detection system |
| CN110208205A (en) * | 2019-06-03 | 2019-09-06 | 南京工业大学 | Photo-acoustic spectrometer device based on photoacoustic cell mechanism |
| CN112504971A (en) * | 2021-02-08 | 2021-03-16 | 湖北鑫英泰系统技术股份有限公司 | Photoacoustic spectrum identification method and device for characteristic gas in transformer oil |
| CN112504971B (en) * | 2021-02-08 | 2021-04-20 | 湖北鑫英泰系统技术股份有限公司 | Photoacoustic spectrum identification method and device for characteristic gas in transformer oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201853104U (en) | Gas insulation combined electrical apparatus monitoring system | |
| CN104198393B (en) | SF 6decomposed gas component on-line monitoring system and method in electrical equipment | |
| CN105606666B (en) | A kind of portable switch cabinet partial discharge detection device and method based on gas sensor | |
| CN100592068C (en) | SF6 gas density and micro-water integrated on-line monitor | |
| CN102661918A (en) | Off-resonance photoacoustic spectrometric detection and analysis device | |
| CN202974976U (en) | System for detecting accuracy of SF6 on-line monitoring device | |
| CN101782614A (en) | Device for detecting breakdown of sulfur hexafluoride gas-insulated electrical equipment | |
| CN203606277U (en) | Device for intelligently detecting ozone content of partial discharge of high-tension switch cabinet | |
| CN102944645A (en) | SF6 online monitoring apparatus accuracy detection system and method thereof | |
| CN110441241B (en) | Performance evaluation device and method for photoacoustic spectroscopy multi-component gas analysis instrument | |
| CN112858806A (en) | Online pulse taking diagnosis system and method for gas in transformer oil | |
| CN104297599A (en) | Fault diagnosis method and system of sulfur hexafluoride electrical equipment | |
| CN114866550A (en) | Environment parameter and insulation fault early warning on-line monitoring system applied to ring main unit | |
| CN110542839A (en) | All-optical insulation fault monitoring system for SF6 gas insulation equipment | |
| CN202281733U (en) | Multi-parameter on-line monitoring device for sulfur hexafluoride gas | |
| CN110579587A (en) | On-line monitoring system for lubricating oil quality in steam turbine | |
| CN207263637U (en) | A kind of transformer oil state on_line monitoring system | |
| CN206161530U (en) | Sulfur hexafluoride analyte raman spectroscopy on -line monitoring analysis appearance | |
| CN112665647A (en) | ZigBee-based power grid transformer remote online monitoring system | |
| CN203658326U (en) | Online micro water content and density monitoring device for SF6 gas | |
| CN203772320U (en) | Comprehensive online SF6 gas state monitoring system | |
| CN201732056U (en) | Sulfur hexafluoride gas leakage monitoring and warning device | |
| CN110609126A (en) | Online monitoring system for hydrogen in mutual inductor and method for judging internal fault of mutual inductor | |
| CN105548837B (en) | A kind of switch cubicle interior insulation part defect prior-warning device | |
| CN201754298U (en) | Intelligent gas leakage on-line alarm system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: ZIBO POWER SUPPLY COMPANY OF SHANDONG ELECTRIC POWER CORPORATION Effective date: 20130805 Owner name: ZIBO POWER SUPPLY COMPANY OF SHANDONG ELECTRIC POW Effective date: 20130805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 255032 ZIBO, SHANDONG PROVINCE TO: 100031 XICHENG, BEIJING |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District, Chang'an Avenue, No. 86, Patentee after: State Grid Corporation of China Patentee after: STATE GRID ZIBO POWER SUPPLY COMPANY OF SHANDONG PROVINCE Address before: 100031 Xicheng District, Chang'an Avenue, No. 86, Patentee before: State Grid Corporation of China Patentee before: Zibo Power Supply Company of Shandong Electric Power Corp. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130805 Address after: 100031 Xicheng District, Chang'an Avenue, No. 86, Patentee after: State Grid Corporation of China Patentee after: Zibo Power Supply Company of Shandong Electric Power Corp. Address before: 255032 No. 61 West Village Road, Zhangdian District, Shandong, Zibo Patentee before: Zibo Power Supply Company of Shandong Electric Power Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20181123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |