CN104991133A - CR imaging-based GIS visualized nondestructive test method - Google Patents
CR imaging-based GIS visualized nondestructive test method Download PDFInfo
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- CN104991133A CN104991133A CN201510357310.3A CN201510357310A CN104991133A CN 104991133 A CN104991133 A CN 104991133A CN 201510357310 A CN201510357310 A CN 201510357310A CN 104991133 A CN104991133 A CN 104991133A
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Abstract
A CR imaging-based GIS visualized nondestructive test method includes the steps of: A. performing partial discharge detection on GIS equipment, and analyzing detected partial discharge data to determine a rough position of a defect; B. fixing a CR film on a GIS tank body where the defect is detected, and using an X-ray transmitter to irradiate X rays to an area where an abnormality occurs in partial discharge to project to the CR film; C. placing the CR film subjected to X-ray irradiation in a CR scanner, connecting with a computer, reading data on the film in the computer, and forming a visualized image; and D. analyzing a result, and determining the position and the property of the defect of the GIS equipment. The CR imaging-based GIS visualized nondestructive test method provided by the invention can determine whether a defect exists and what kind of defects exist in the GIS equipment, and can visually determine and identify the position of the defect in the GIS equipment at the same time.
Description
Technical field
The present invention relates to power equipment Inner Defect Testing method and technology field, particularly relate to the visual lossless detection method of a kind of GIS based on CR imaging.
Background technology
GIS (Gas Insulated Switchgear), refer to " Cubicle Gas-Insulated Switchgear ", it is by the primary equipment in a transformer station except transformer, comprise isolating switch, disconnector, grounding switch, voltage transformer (VT), current transformer, lightning arrester, bus, cable termination, inlet-outlet sleeve etc., be organically combined into an entirety.GIS because of its obvious advantage adopt by vast transformer substation system, it makes transformer station's floor area greatly reduce with compact layout, totally enclosed electrified body.
But in recent years, electric pressure and the installed capacity of electrical network constantly increase, and the failure rate of GIS device also increases gradually.Overhaul the totally enclosed GIS device broken down extremely difficult, interruption maintenance can cause surprising loss on time and money, therefore, the stable operation of GIS device is for the stable operation of power industry and even have very important meaning to the electric power supply that resident is stable.
In recent years, X ray Dynamic Non-Destruction Measurement has unique advantage in the flaw detection of power equipment inherent vice, as technology minimus in Non-Destructive Testing family, it has fast, accurately, advantage intuitively, promote Non-Destructive Testing fast development, X ray Dynamic Non-Destruction Measurement can when not detaching equipment, do not have a power failure crank detection test is carried out to GIS inside, and find out that whether equipment abnormal intuitively.Compact for GIS device, airtight feature, the defect such as X ray Non-Destructive Testing can be pitched to the parts of GIS device intuitively, come off, distortion judges that loss can be reduced to minimum by the defect in Timeliness coverage GIS device.
Summary of the invention
Which kind of the present invention seeks to, in order to determine GIS device inside whether existing defects and defect, to determine simultaneously and identify the position of GIS device inherent vice intuitively, propose the visual lossless detection method of a kind of GIS based on CR imaging.
Technical scheme of the present invention is as follows:
The visual lossless detection method of GIS based on CR imaging, comprises the steps:
A. office is carried out to GIS device and put detection, data analysis is put in the office detected, determine defect approximate location;
B. be fixed on by CR film and detect on the GIS tank body of defect, utilize X ray transmitter, the area illumination X ray of releasing existing exception of playing a game is projected on CR film;
C. the CR film through x-ray bombardment is placed in CR scanner, and is connected with computer, the data on film are read in computer, form visual image;
D. analysis result, determines position and the character thereof of GIS device defect.
Steps A of the present invention adopts ultrasonic Detection Method.
Step B of the present invention refers to X ray transillumination GIS tank body rejected region, and projects on CR film and carry out imaging.
The concrete steps of step B of the present invention are:
B1. put out-of-the way position side in GIS device office and place CR film, due to film very light in weight, paste or hang; Opposite side places X ray transmitter, GIS device office is aimed at the center of the X ray emission port of X ray transmitter and puts out-of-the way position, and out-of-the way position is put point-blank in emission port center and the GIS device office of maintenance CR film center, pulsed X-ray machine;
B2. X ray transmitter is connected with remote control, CR scanner is connected with mobile workstation;
B3. by after remote control initialization system parameter, press the ray start button on remote control, out-of-the way position is put to GIS device inside office and carries out Non-Destructive Testing, and imaging on CR film;
B4. as not fogging clear, the position of adjustment CR film or X-ray production apparatus, and repeat step Bl, B4, B5, transillumination different parts.
The invention has the beneficial effects as follows: when carrying out Non-Destructive Testing for GIS device applying X-ray, the visual identification to GIS device inherent vice position and character can be realized, greatly reduce the blindness of work of electric power system personnel to GIS device defects detection, improve the science of GIS device Inner Defect Testing and diagnosis, high efficiency and accuracy.
Accompanying drawing explanation
Fig. 1 is the visual lossless detection method process flow diagram of a kind of GIS based on CR imaging;
Fig. 2 is the visual Non-Destructive Testing schematic diagram of a kind of GIS based on CR imaging;
Fig. 3 and Fig. 4 is CR scanner schematic diagram.
In figure, 1.CR film 2.CR digital scanner 3. control knob 4. LCDs 5. power switch 6.USB interface 7. power cord jack 8.GIS tank body 9.X ray emission machine.
Embodiment
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, the visual lossless detection method of a kind of GIS based on CR imaging, comprises the steps:
A. office is carried out to GIS device and put detection, data analysis is put in the office detected, determine defect approximate location;
B. be fixed on by CR film 1 and detect on the GIS tank body 8 of defect, utilize X ray transmitter 9, the area illumination X ray of releasing existing exception of playing a game is projected on CR film 1;
C. the CR film 1 through x-ray bombardment is placed in CR scanner 2, CR scanner is connected with computer, the data on film are read in computer, form visual image;
D. analysis result, determines position and the character thereof of GIS device defect.
Described steps A adopts ultrasonic Detection Method.
Described step B refers to X ray transillumination GIS tank body rejected region, and projects on CR film and carry out imaging.
The concrete steps of described step B are as follows:
B1. put out-of-the way position side in GIS device office and place CR film, due to film very light in weight, paste or hang; Opposite side places X ray transmitter, GIS device office is aimed at the center of the X ray emission port of X ray transmitter and puts out-of-the way position, and out-of-the way position is put point-blank in emission port center and the GIS device office of maintenance CR film center, pulsed X-ray machine;
B2. X ray transmitter is connected with remote control, CR scanner is connected with mobile workstation;
B3. by after remote control initialization system parameter, press the ray control knob 4 on remote control, out-of-the way position is put to GIS device inside office and carries out Non-Destructive Testing, and imaging on CR film;
B4. as not fogging clear, the position of adjustment CR film or X-ray production apparatus, and repeat step Bl, B4, B5, transillumination different parts.
Claims (4)
1., based on the visual lossless detection method of GIS of CR imaging, it is characterized in that, comprise the steps:
A. office is carried out to GIS device and put detection, data analysis is put in the office detected, determine defect approximate location;
B. be fixed on by CR film and detect on the GIS tank body of defect, utilize X ray transmitter, the area illumination X ray of releasing existing exception of playing a game is projected on CR film;
C. the CR film through x-ray bombardment is placed in CR scanner, and is connected with computer, the data on film are read in computer, form visual image;
D. analysis result, determines position and the character thereof of GIS device defect.
2. as claimed in claim 1 based on the visual lossless detection method of GIS of CR imaging, it is characterized in that, described steps A adopts ultrasonic Detection Method.
3. the visual lossless detection method of the GIS based on CR imaging according to claim 1, is characterized in that, described step B refers to X ray transillumination GIS tank body rejected region, and projects on CR film and carry out imaging.
4. the visual lossless detection method of the GIS based on CR imaging as described in claim 1 or 3, is characterized in that, the concrete steps of described step B are:
B1. put out-of-the way position side in GIS device office and place CR film, due to film very light in weight, paste or hang; Opposite side places X ray transmitter, GIS device office is aimed at the center of the X ray emission port of X ray transmitter and puts out-of-the way position, and out-of-the way position is put point-blank in emission port center and the GIS device office of maintenance CR film center, pulsed X-ray machine;
B2. X ray transmitter is connected with remote control, CR scanner is connected with mobile workstation;
B3. by after remote control initialization system parameter, press the ray start button on remote control, out-of-the way position is put to GIS device inside office and carries out Non-Destructive Testing, and imaging on CR film;
B4. as not fogging clear, the position of adjustment CR film or X-ray production apparatus, and repeat step Bl, B4, B5, transillumination different parts.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606973A (en) * | 2016-03-04 | 2016-05-25 | 云南电网有限责任公司电力科学研究院 | System for detecting partial discharge by using 360-degree holographic imaging stereoscopic spectroscopy |
| CN105866147A (en) * | 2016-06-15 | 2016-08-17 | 国网福建省电力有限公司 | Device and method for quickly discriminating dry-type transformer windings based on pulse CR detection |
| CN105866146A (en) * | 2016-06-15 | 2016-08-17 | 国网福建省电力有限公司 | Device and method for quickly discriminating dry-type transformer windings based on power-frequency CR detection |
| CN106153652A (en) * | 2016-08-30 | 2016-11-23 | 韩国栋 | A kind of method applying X-ray transmission technology for detection power equipment joint |
| CN106442579A (en) * | 2016-09-08 | 2017-02-22 | 国网河南省电力公司电力科学研究院 | Method for detecting on-site three-dimensional imaging of GIS center conductive member |
| CN109254085A (en) * | 2018-11-07 | 2019-01-22 | 国网四川省电力公司成都供电公司 | A kind of probe sticking machine for eminence GIS ultrasonic test |
| CN109459451A (en) * | 2018-12-13 | 2019-03-12 | 中国航空工业集团公司上海航空测控技术研究所 | A kind of metal inside testing of small cracks method based on ray contrast |
| CN109668913A (en) * | 2018-11-30 | 2019-04-23 | 贵州电网有限责任公司 | It is opened using digital radial measurement GIS device breaker away from the method for judging transmission system quality of connection |
| CN109781751A (en) * | 2019-01-08 | 2019-05-21 | 国网浙江省电力有限公司宁波供电公司 | Buried cable pulsed X-ray digital imaging detection device for detecting and characterization processes |
| US11635393B2 (en) | 2017-10-17 | 2023-04-25 | Quanta Associates, L.P. | Method, system and apparatus for non-destructive testing (NDT) of electrical power line systems |
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| CN102175950A (en) * | 2011-02-22 | 2011-09-07 | 云南电力试验研究院(集团)有限公司 | Mobile field partial discharge source visual detection method for GIS (gas insulated switchgear) |
| CN102353880A (en) * | 2011-07-11 | 2012-02-15 | 云南电力试验研究院(集团)有限公司 | Visualized nondestructive detection method of internal defect of power switch equipment |
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Patent Citations (3)
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| CN101839870A (en) * | 2010-03-31 | 2010-09-22 | 青海电力科学试验研究院 | X-ray radiographic digital imaging detection method for power grid GIS (Geographic Information System) equipment |
| CN102175950A (en) * | 2011-02-22 | 2011-09-07 | 云南电力试验研究院(集团)有限公司 | Mobile field partial discharge source visual detection method for GIS (gas insulated switchgear) |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606973A (en) * | 2016-03-04 | 2016-05-25 | 云南电网有限责任公司电力科学研究院 | System for detecting partial discharge by using 360-degree holographic imaging stereoscopic spectroscopy |
| CN105866147A (en) * | 2016-06-15 | 2016-08-17 | 国网福建省电力有限公司 | Device and method for quickly discriminating dry-type transformer windings based on pulse CR detection |
| CN105866146A (en) * | 2016-06-15 | 2016-08-17 | 国网福建省电力有限公司 | Device and method for quickly discriminating dry-type transformer windings based on power-frequency CR detection |
| CN106153652A (en) * | 2016-08-30 | 2016-11-23 | 韩国栋 | A kind of method applying X-ray transmission technology for detection power equipment joint |
| CN106442579A (en) * | 2016-09-08 | 2017-02-22 | 国网河南省电力公司电力科学研究院 | Method for detecting on-site three-dimensional imaging of GIS center conductive member |
| US11635393B2 (en) | 2017-10-17 | 2023-04-25 | Quanta Associates, L.P. | Method, system and apparatus for non-destructive testing (NDT) of electrical power line systems |
| CN109254085A (en) * | 2018-11-07 | 2019-01-22 | 国网四川省电力公司成都供电公司 | A kind of probe sticking machine for eminence GIS ultrasonic test |
| CN109668913A (en) * | 2018-11-30 | 2019-04-23 | 贵州电网有限责任公司 | It is opened using digital radial measurement GIS device breaker away from the method for judging transmission system quality of connection |
| CN109459451A (en) * | 2018-12-13 | 2019-03-12 | 中国航空工业集团公司上海航空测控技术研究所 | A kind of metal inside testing of small cracks method based on ray contrast |
| CN109781751A (en) * | 2019-01-08 | 2019-05-21 | 国网浙江省电力有限公司宁波供电公司 | Buried cable pulsed X-ray digital imaging detection device for detecting and characterization processes |
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