CN105988068A - Fault detection device for GIS equipment in high-voltage power transmission and transformation power station - Google Patents
Fault detection device for GIS equipment in high-voltage power transmission and transformation power station Download PDFInfo
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- CN105988068A CN105988068A CN201610554999.3A CN201610554999A CN105988068A CN 105988068 A CN105988068 A CN 105988068A CN 201610554999 A CN201610554999 A CN 201610554999A CN 105988068 A CN105988068 A CN 105988068A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
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Abstract
The invention discloses a fault detection device for GIS equipment in a high voltage power transmission and transformation power station, which comprises a packaging box. The packaging box is externally provided with a display module; the packaging box is internally provided with a main control module, a power supply module and a detection module; the display module, the main control module and the detection module are all electrically connected with the power supply module, and a communication module and the display module are also electrically connected with the main control module; the detection module comprises a concave lens, an infrared light source arranged in the center of a reflective mirror of the concave lens, a chopper arranged in front of the reflective mirror of the concave lens, a filter wheel arranged in front of the chopper and a photoacoustic cell arranged in front of the filter; and the main control module is electrically connected with the infrared light source and the infrared light source, the chopper, the light-transmitting hole of the filter wheel and the optical window of the photoacoustic cell are coaxially arranged. The fault detection device for GIS equipment in a high voltage power transmission and transformation power station has the beneficial effects that an integrated design is adopted to package elements into the sealed box, air leakage of the device to influence the detection result is eliminated, the size of the device is further reduced to enable the device to be portable, and the device is more applicable to field online detection.
Description
Technical field
The invention belongs to GIS electrical equipment detection technique field, be specifically related to a kind of high voltage power transmission and transforming station GIS device failure detector.
Background technology
GIS device, due to advantages such as superior performance, safe and reliable, easy to maintenance and length in service life, is widely used in power system.GIS device has been developed to 220kV, 500kV, 750kV, 1000kV grade from several kilovolts of grades originally.At present, in the supertension, extra-high voltage project project of China, GIS is as the main product of power transmission and transforming equipment.
The SF of certain pressure it is filled with inside GIS device6Gas, SF6Gas itself has superior arc extinction performance and insulating properties.When GIS device breaks down, may result in internal breakdown and produce shelf depreciation, and shelf depreciation can further result in SF6Gas is decomposed and is produced multiple sulfide, fluoride and carbide etc..Wherein SO2、H2Tri-kinds of component gas of S and CO can be as analyzing the characteristic component judged during device fails.Judged type and the degree of insulation defect by the type of gas component and content, the judgement of dielectric level and repair based on condition of component for GIS equipment provide foundation, thus avoid the generation of catastrophe failure and large-scale blackout.
The detection device used in industry at present is primarily present following a few point defect: 1, sensor is installed separately, wiring confusion, there is gas leakage and interference phenomenon, so that testing result is inaccurate.2, difference in signal strength, accuracy of detection is the highest, and testing result reliability is low is difficult to use in reference.3, structure is complicated, and maintenance cost is high, and fault rate is high, is unfavorable for carrying.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of high voltage power transmission and transforming station GIS device failure detector, it is possible to realize quickly, in high precision, the purpose of on-the-spot on-line checking.
For solving prior art problem, the invention discloses a kind of high voltage power transmission and transforming station GIS device failure detector, including enclosure, display module is set outside enclosure, main control module, power module, and detection module are set in enclosure；Display module, main control module and detection module all electrically connect with power module, and communication module and display module also electrically connect with main control module；Detection module includes concavees lens, is arranged on the infrared light supply of concavees lens mirror surface central authorities, is arranged on the chopper in concavees lens mirror surface front, is arranged on the filter wheel in chopper front, and is arranged on the photoacoustic cell in optical filter front；Main control module electrically connects with infrared light supply, and the optical window of infrared light supply, chopper, the loophole of filter wheel and photoacoustic cell is coaxially disposed；
The resonator cavity of mike, baroceptor, temperature sensor and cylinder it is provided with in photoacoustic cell；Resonator cavity is respectively arranged on the left side and the right side quartz optical window and reflecting mirror, is respectively provided on two sides with a mike up and down, and quartz optical window and reflecting mirror are fixed on resonator cavity two ends by a gland respectively, are additionally provided with sealing ring between inner face and the cavity wall of resonator cavity of gland；Air inlet and the gas outlet of connection resonator cavity is offered bottom photoacoustic cell；Mike is electrically connected with main control module by phase-locked amplification module, and baroceptor and temperature sensor electrically connect with main control module respectively.
Preferably, enclosure is separated into upper and lower two parts by an internal dividing plate, and concavees lens, infrared light supply, chopper, filter wheel and photoacoustic cell are arranged in the top half of enclosure, main control module, power module and phase-locked amplification module are arranged in the latter half of enclosure.
Preferably, gland is assembled by screw thread pair with resonator cavity, and the outer end of gland has flanged structure, is provided with sealing gasket between inner face and the outer face of resonator cavity of flanged structure.
Preferably, display module includes display screen and liquid crystal display drive circuit.
Preferably, power module includes transformator, rectification module and ferric phosphate lithium cell；City electrically connects, secondary is connected to power to internal module by rectification module and ferric phosphate lithium cell with scene on the former limit of transformator.
Preferably, filter wheel is offered some along its circumferential equally distributed loophole, loophole is provided with optical filter.
Preferably, main control module uses PICC single-chip microcomputer.
Preferably, described power supply uses ferric phosphate lithium cell.
The invention have the benefit that
1. use integrated form design by all kinds of component encapsulations in closed enclosure, stopped device gas leakage and affected testing result, and reduction device volume makes it easy to carry further, is more suitable for on-the-spot on-line checking.
2. two mikes are set in photoacoustic cell, and are all connected with main control module by phase-locked amplification module, reasonable in design, and avoid single mike produced detection error.
Accompanying drawing explanation
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the external structure schematic diagram of the present invention；
Fig. 3 is the structural representation of photoacoustic cell in the present invention.
Reference:
1 enclosure；2 concavees lens；3 infrared light supplies；4 choppers；5 filter wheels；6 photoacoustic cells；7 first glands；8 reflecting mirrors；9 baroceptors；10 mikes；11 temperature sensors；12 quartz optical windows；13 second glands；14 air inlets；15 gas outlets；16 phase-locked amplification modules.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
As shown in Figures 1 to 3, a kind of high voltage power transmission and transforming station GIS device failure detector, including enclosure 1, display module is set outside enclosure 1, main control module, power module, and detection module are set in enclosure 1.Display module, main control module and detection module all electrically connect with power module, and communication module and display module also electrically connect with main control module；Detection module includes concavees lens 2, is arranged on the infrared light supply 3 that concavees lens 2 reflecting mirror 8 is central, is arranged on the chopper 4 of side in face of concavees lens 2 reflecting mirror 8, is arranged on the filter wheel 5 in chopper 4 front, and is arranged on the photoacoustic cell 6 in optical filter front.Main control module electrically connects with infrared light supply 3, and the optical window of infrared light supply 3, chopper 4, the loophole of filter wheel 5 and photoacoustic cell 6 is coaxially disposed.
Concrete, it is provided with mike, baroceptor 9, temperature sensor 11 and the resonator cavity of cylinder in photoacoustic cell 6.Resonator cavity is respectively arranged on the left side and the right side quartz optical window 12 and reflecting mirror 8, is respectively provided on two sides with a mike up and down.Reflecting mirror 8 is fixed on the right-hand member of resonator cavity by the first gland 7, quartz optical window 12 is fixed on resonator cavity left end by the second gland 13, the central authorities of the second gland 13 offer through hole, it is equipped with sealing ring between first gland 7 and inner face and the cavity wall of resonator cavity of the second gland 13 and is assembled by screw thread pair with resonator cavity, its outer end has flanged structure, is provided with sealing gasket between inner face and the outer face of resonator cavity of flanged structure.Air inlet 14 and the gas outlet 15 of connection resonator cavity is offered bottom photoacoustic cell 6；Mike is electrically connected with main control module by phase-locked amplification module 16, and baroceptor 9 and temperature sensor 11 electrically connect with main control module respectively.
Enclosure 1 is separated into upper and lower two parts by an internal dividing plate, and concavees lens 2, infrared light supply 3, chopper 4, filter wheel 5 and photoacoustic cell 6 are arranged in the top half of enclosure 1, main control module, power module and phase-locked amplification module 16 are arranged in the latter half of enclosure 1.
Display module includes display screen and liquid crystal display drive circuit.
Power module includes transformator, rectification module and ferric phosphate lithium cell；City electrically connects, secondary is connected to power to internal module by rectification module and ferric phosphate lithium cell with scene on the former limit of transformator.
Offer some along its circumferential equally distributed loophole on filter wheel 5, loophole is provided with optical filter.
Main control module uses PICC single-chip microcomputer, and power supply uses ferric phosphate lithium cell.
The operation principle of the present invention and process
Gas to be detected is passed in the resonator cavity of photoacoustic cell 6 by the air inlet 14 of photoacoustic cell 6.Turning on the power, relevant work module is energized, and Single-chip Controlling infrared light supply 3 sends in periodically variable HONGGUANG, after optical filter filters, obtains the spectrum of characteristic frequency wavelength, to excite gas release heat energy to be detected.The spectrum of characteristic frequency wavelength enters in photoacoustic cell 6 by quartz optical window 12, and the gas to be detected in photoacoustic cell 6 is caused pressure oscillation according to incident light pulse by periodic heat, the cyclic fluctuation of its temperature.After mike detects pressure oscillation, acoustic energy being transformed into the signal of telecommunication, and be transferred to single-chip microcomputer after improving signal to noise ratio further by phase-locked amplification module 16, single-chip microcomputer obtains the concentration value of gas to be detected after treatment, and is displayed on a display screen.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, on the premise of without departing from the technology of the present invention principle; can also make some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (8)
1. a high voltage power transmission and transforming station GIS device failure detector, it is characterised in that: include enclosure, display module is set outside enclosure, main control module, power module, and detection module are set in enclosure；Display module, main control module and detection module all electrically connect with power module, and display module also electrically connects with main control module；Detection module includes concavees lens, is arranged on the infrared light supply of concavees lens mirror surface central authorities, is arranged on the chopper in concavees lens mirror surface front, is arranged on the filter wheel in chopper front, and is arranged on the photoacoustic cell in optical filter front；Main control module electrically connects with infrared light supply, and the optical window of infrared light supply, chopper, the loophole of filter wheel and photoacoustic cell is coaxially disposed；
The resonator cavity of mike, baroceptor, temperature sensor and cylinder it is provided with in photoacoustic cell；Resonator cavity is respectively arranged on the left side and the right side quartz optical window and reflecting mirror, is respectively provided on two sides with a mike up and down, quartz optical window and reflecting mirror are fixed on resonator cavity two ends by a gland respectively, the gland central authorities of fixing quartz optical window have a through hole, are additionally provided with sealing ring between inner face and the cavity wall of resonator cavity of gland；Air inlet and the gas outlet of connection resonator cavity is offered bottom photoacoustic cell；Mike is electrically connected with main control module by phase-locked amplification module, and baroceptor and temperature sensor electrically connect with main control module respectively.
High voltage power transmission and transforming station the most according to claim 1 GIS device failure detector, it is characterized in that: enclosure is separated into upper and lower two parts by an internal dividing plate, concavees lens, infrared light supply, chopper, filter wheel and photoacoustic cell are arranged in the top half of enclosure, main control module, power module and phase-locked amplification module are arranged in the latter half of enclosure.
High voltage power transmission and transforming station the most according to claim 1 GIS device failure detector, it is characterized in that: gland is assembled by screw thread pair with resonator cavity, the outer end of gland has flanged structure, is provided with sealing gasket between inner face and the outer face of resonator cavity of flanged structure.
High voltage power transmission and transforming station the most according to claim 1 GIS device failure detector, it is characterised in that: display module includes display screen and liquid crystal display drive circuit.
High voltage power transmission and transforming station the most according to claim 1 GIS device failure detector, it is characterised in that: power module includes transformator, rectification module and ferric phosphate lithium cell；City electrically connects, secondary is connected to power to internal module by rectification module and ferric phosphate lithium cell with scene on the former limit of transformator.
High voltage power transmission and transforming station the most according to claim 1 GIS device failure detector, it is characterised in that: offer some along its circumferential equally distributed loophole on filter wheel, loophole is provided with optical filter.
High voltage power transmission and transforming station the most according to claim 1 GIS device failure detector, it is characterised in that: main control module uses PICC single-chip microcomputer.
High voltage power transmission and transforming station the most according to claim 1 GIS device failure detector, it is characterised in that: described power supply uses ferric phosphate lithium cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610554999.3A CN105988068A (en) | 2016-07-15 | 2016-07-15 | Fault detection device for GIS equipment in high-voltage power transmission and transformation power station |
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| CN201610554999.3A CN105988068A (en) | 2016-07-15 | 2016-07-15 | Fault detection device for GIS equipment in high-voltage power transmission and transformation power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596329A (en) * | 2016-12-19 | 2017-04-26 | 华能国际电力股份有限公司玉环电厂 | Onsite display instrument-based GIS sulfur hexafluoride density online monitoring system |
| CN110780229A (en) * | 2019-11-22 | 2020-02-11 | 苏斌 | 500 kilovolt high-voltage power transmission station safety detection equipment |
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| CN2847297Y (en) * | 2005-12-22 | 2006-12-13 | 公安部上海消防研究所 | Single gas detector using infrared light source based on optoacoustic principle |
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| CN110780229A (en) * | 2019-11-22 | 2020-02-11 | 苏斌 | 500 kilovolt high-voltage power transmission station safety detection equipment |
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Address after: 210000, Jiangsu, Jiangning Development Zone, Nanjing, the source of the road, No. 58, -5 Applicant after: National network Jiangsu Electric Power Co., Ltd. maintenance branch Applicant after: STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant after: State Grid Corporation of China Address before: 210000, Jiangsu, Jiangning Development Zone, Nanjing, the source of the road, No. 58, -5 Applicant before: State Grid Jiangsu Electric Power Company Maintenance Branch Company Applicant before: STATE GRID JIANGSU ELECTRIC POWER COMPANY Applicant before: State Grid Corporation of China |
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Application publication date: 20161005 |