CN112577938A - Method and device for detecting internal smoothness of gas chamber of GIS (gas insulated switchgear) - Google Patents
Method and device for detecting internal smoothness of gas chamber of GIS (gas insulated switchgear) Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 73
- 238000010191 image analysis Methods 0.000 claims abstract description 16
- 238000003745 diagnosis Methods 0.000 claims abstract description 8
- 239000005416 organic matter Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 229910018503 SF6 Inorganic materials 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
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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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- 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
- G01R31/1227—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 of components, parts or materials
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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
- G01R31/1227—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 of components, parts or materials
- G01R31/1263—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1281—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 of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of liquids or gases
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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Abstract
The invention discloses a method and a device for detecting the internal smoothness of a gas chamber of GIS equipment, wherein the detection device utilizes ultraviolet light to detect the internal smoothness of the gas chamber of the GIS equipment, and comprises the following steps: connecting module, adjusting module, light source module, get for instance module, image analysis module, storage module and diagnostic module, wherein: the connecting module is connected with the light source module and the image capturing module, the light source module is connected with the adjusting module, the image capturing module is connected with the image analysis module, the image analysis module is connected with the storage module, the storage module is connected with the diagnosis module, and the image capturing module is used for receiving fluorescence intensity information of dirty dirt. The embodiment of the invention can rapidly, directly and accurately detect the internal finish of the GIS equipment in real time by utilizing the ultraviolet light, and really achieve early warning by judging whether the internal dirt reaches the threshold value causing discharge or not.
Description
Technical Field
The invention relates to the technical field of power detection, in particular to a method and a device for detecting the internal smoothness of a gas chamber of GIS equipment.
Background
In recent years, gas insulated metal enclosed switchgear (GIS) has the characteristics of small floor space, little influence from weather conditions, long service life, less maintenance work, compact device structure, convenient installation, suitability for areas with complex terrain and narrow terrain, and is widely used in the power industry. However, as the number of GIS substations increases, GIS equipment fails more and more. The main reason for analyzing the fault is that the GIS equipment inevitably generates suspended particles, inner wall and insulator surface dirt in the equipment during production, assembly, transportation and the like, and the SF is sharply reduced6The level of insulation of the gas, resulting in flashover discharge, and in severe cases in dielectric breakdown, SF6And the power failure accident is caused by the decomposition. However, the size of the suspended particles causing flashover discharge is micron-sized, which is difficult to observe by naked eyes, and the GIS equipment is very difficult to detect when power is cut off. Therefore, a detection method with high sensitivity and without power failure is urgently needed to detect suspended particles in the gas chamber of the GIS device.
At present, a plurality of discharge detection methods are used for a gas chamber of GIS equipment, and a partial discharge ultrasonic detection method and a gas chromatography detection method are commonly used. The local ultrasonic detection method mainly utilizes GIS internal emissionWhen partial discharge occurs, the gas is instantaneously heated and expanded to generate shock waves, and the abnormality of the internal insulation defect is found by detecting the shock waves. The method is difficult to determine the position of the discharge point and the severity of the discharge only according to the magnitude of the partial discharge amplitude. A gas chromatography detection method mainly utilizes SF (sulfur hexafluoride) generated by discharging in GIS (gas insulated switchgear)6Decomposition occurs by detecting SF6Decomposition product H2O、H2S、SO2And judging the discharge of the gas chamber of the GIS equipment according to the content of the gas with the same components. In addition, the gas chromatography detection method and the partial discharge method do not directly detect parameters causing discharge factors, but detect ultrasonic waves and decomposition products generated by discharge, and are indirect, so that the sensitivity is not high. And the gas chamber can be used only when the inside of the GIS equipment is discharged, and early warning cannot be achieved.
Disclosure of Invention
The invention aims to at least solve the technical problems in the prior art and provides a method and a device for detecting the internal smoothness of a gas chamber of GIS equipment.
The embodiment of the invention provides a detection device, which utilizes ultraviolet light to detect the internal smoothness of a gas chamber of GIS equipment, and comprises: connecting module, adjusting module, light source module, get for instance module, image analysis module, storage module and diagnostic module, wherein: the connecting module is connected with the light source module and the image capturing module, the light source module is connected with the adjusting module, the image capturing module is connected with the image analysis module, the image analysis module is connected with the storage module, the storage module is connected with the diagnosis module, and the image capturing module is used for receiving fluorescence intensity information of dirty dirt.
The connecting module is used for firmly connecting the detection device with the GIS equipment air chamber observation hole.
The adjusting module is used for changing the angle and the direction of the lens of the detection device to realize detection position conversion.
The light source module is used for generating and emitting ultraviolet light.
And the image analysis module is used for carrying out image processing on the received fluorescence to obtain the smoothness of the detection position.
The storage module is used for storing the detection information.
The diagnosis module judges whether the smoothness of the detection position reaches a threshold value or not by extracting the smoothness of the detection position, and then sends alarm information.
Correspondingly, the embodiment of the invention also provides a method for detecting the internal smoothness of the gas chamber of the GIS equipment by using ultraviolet light, which is realized based on the detection device and comprises the following steps:
s1: connecting the detection device with an observation hole of a gas chamber of the GIS equipment through a connecting module;
s2: the detection device emits ultraviolet light to the interior of the air chamber through the observation hole, and the organic matter can generate autofluorescence after being excited by the UV light;
s3: the detection device receives the fluorescence intensity information of the dirt, obtains the smoothness of the detection position through image processing, and stores the smoothness;
s4: when the degree of finish exceeds the threshold value, the detection device sends out an alarm prompt;
s5: and changing the angle and the direction of a lens of the detection device, and detecting the finish degree of other positions inside the detection device.
Compared with the prior art, the method and the device for detecting the internal smoothness of the gas chamber of the GIS equipment by using the ultraviolet light can quickly, accurately and real-timely detect the dirty dirt of oil, grease and residual surfactant on the inner wall of the gas outlet chamber and the surface of the contact, early warn the discharge of the gas chamber of the GIS equipment in advance, reduce the accident rate and reduce the cost of a power grid. The ultraviolet light can be used for rapidly, directly and accurately detecting the internal finish of the GIS equipment in real time, and early warning is really realized by judging whether the internal dirty dirt reaches a threshold value causing discharge or not.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for detecting the internal smoothness of a gas chamber of a GIS device in an embodiment of the invention;
fig. 2 is a schematic structural diagram of a detection device in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
FIG. 1 shows a flow chart of a method for detecting the internal smoothness of a GIS equipment air chamber in the embodiment of the invention, which comprises the following steps:
s1: connecting the detection device with an observation hole of a gas chamber of the GIS equipment through a connecting module;
s2: the detection device emits ultraviolet light to the interior of the air chamber through the observation hole, and the organic matter can generate autofluorescence after being excited by the UV light;
s3: the detection device receives the fluorescence intensity information of the dirt, obtains the smoothness of the detection position through image processing, and stores the smoothness;
s4: when the degree of finish exceeds the threshold value, the detection device sends out an alarm prompt;
s5: and changing the angle and the direction of a lens of the detection device, and detecting the finish degree of other positions inside the detection device.
Fig. 2 is a schematic structural diagram of a detection apparatus in an embodiment of the present invention, where the detection apparatus includes a connection module, an adjustment module, a light source module, an image capturing module, an image analysis module, and a diagnosis module.
The connecting module is mainly used for firmly connecting the detection device with the GIS equipment air chamber observation hole.
The adjusting module is mainly used for changing the angle and the direction of the lens of the detection device.
The light source module is mainly used for generating and emitting ultraviolet light.
The image capturing module is mainly used for receiving fluorescence intensity information of dirty dirt.
The image processing module is mainly used for carrying out image processing on the received fluorescence to obtain the smoothness of the detection position.
The diagnosis module judges whether a threshold value is reached or not mainly by extracting the smoothness of the detection position, and then sends alarm information.
The storage module is mainly used for storing detection information.
Example two
Figure 2 shows a schematic view of a detection device according to an embodiment of the present invention,
detection device utilizes the inside smooth finish of ultraviolet ray detection GIS equipment air chamber, detection device includes: connecting module, adjusting module, light source module, get for instance module, image analysis module, storage module and diagnostic module, wherein: the connecting module is connected with the light source module and the image capturing module, the light source module is connected with the adjusting module, the image capturing module is connected with the image analysis module, the image analysis module is connected with the storage module, the storage module is connected with the diagnosis module, and the image capturing module is used for receiving fluorescence intensity information of dirty dirt.
The connecting module is used for firmly connecting the detection device with the GIS equipment air chamber observation hole.
The adjusting module is used for changing the angle and the direction of the lens of the detection device to realize detection position conversion.
The light source module is used for generating and emitting ultraviolet light.
And the image analysis module is used for carrying out image processing on the received fluorescence to obtain the smoothness of the detection position.
The storage module is used for storing the detection information.
The diagnosis module judges whether the smoothness of the detection position reaches a threshold value or not by extracting the smoothness of the detection position, and then sends alarm information.
Correspondingly, the embodiment of the invention also provides a method for detecting the internal smoothness of the gas chamber of the GIS equipment by using ultraviolet light, which is realized based on the detection device and comprises the following steps:
s1: connecting the detection device with an observation hole of a gas chamber of the GIS equipment through a connecting module;
s2: the detection device emits ultraviolet light to the interior of the air chamber through the observation hole, and the organic matter can generate autofluorescence after being excited by the UV light;
s3: the detection device receives the fluorescence intensity information of the dirt, obtains the smoothness of the detection position through image processing, and stores the smoothness;
s4: when the degree of finish exceeds the threshold value, the detection device sends out an alarm prompt;
s5: and changing the angle and the direction of a lens of the detection device, and detecting the finish degree of other positions inside the detection device.
The embodiment of the invention discloses a method and a device for detecting the internal smoothness of a gas chamber of GIS equipment by using ultraviolet light, which can realize the rapid, accurate and real-time detection of the dirty dirt of oil, grease and residual surfactant on the inner wall of the gas chamber and the surface of a contact, early warning the discharge of the gas chamber of the GIS equipment, reduce the accident rate and reduce the cost of a power grid. The ultraviolet light can be used for rapidly, directly and accurately detecting the internal finish of the GIS equipment in real time, and early warning is really realized by judging whether the internal dirty dirt reaches a threshold value causing discharge or not.
The above embodiments of the present invention are described in detail, and the principle and the implementation manner of the present invention should be described herein by using specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A detection device, characterized in that, the detection device utilizes ultraviolet light to detect the interior finish of a GIS equipment air chamber, the detection device includes: connecting module, adjusting module, light source module, get for instance module, image analysis module, storage module and diagnostic module, wherein: the connecting module is connected with the light source module and the image capturing module, the light source module is connected with the adjusting module, the image capturing module is connected with the image analysis module, the image analysis module is connected with the storage module, the storage module is connected with the diagnosis module, and the image capturing module is used for receiving fluorescence intensity information of dirty dirt.
2. The detection device of claim 1, wherein the connection module is configured to securely connect the detection device to a GIS device gas chamber viewport.
3. The detecting device for detecting the rotation of a motor rotor as claimed in claim 1, wherein the adjusting module is used for changing the angle and the direction of a lens of the detecting device so as to realize the change of the detecting position.
4. The detection device of claim 1, wherein the light source module is configured to generate and emit ultraviolet light.
5. The inspection device of claim 1, wherein the image analysis module is configured to image process the received fluorescence to obtain a smoothness of the inspection site.
6. The sensing device of claim 1, wherein the storage module is configured to store sensing information.
7. The inspection device of claim 1, wherein the diagnostic module determines whether a threshold is reached by extracting a finish of the inspection site to issue an alarm message.
8. A method for detecting the internal smoothness of a GIS equipment gas chamber, which is realized based on the detection device of any one of claims 1 to 7, and comprises the following steps:
s1: connecting the detection device with an observation hole of a gas chamber of the GIS equipment through a connecting module;
s2: the detection device emits ultraviolet light to the interior of the air chamber through the observation hole, and the organic matter can generate autofluorescence after being excited by the UV light;
s3: the detection device receives the fluorescence intensity information of the dirt, obtains the smoothness of the detection position through image processing, and stores the smoothness;
s4: when the degree of finish exceeds the threshold value, the detection device sends out an alarm prompt;
s5: and changing the angle and the direction of a lens of the detection device, and detecting the finish degree of other positions inside the detection device.
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| CN202011442285.6A CN112577938A (en) | 2020-12-08 | 2020-12-08 | Method and device for detecting internal smoothness of gas chamber of GIS (gas insulated switchgear) |
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| CN202011442285.6A CN112577938A (en) | 2020-12-08 | 2020-12-08 | Method and device for detecting internal smoothness of gas chamber of GIS (gas insulated switchgear) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114812449A (en) * | 2022-04-21 | 2022-07-29 | 深圳市汇投智控科技有限公司 | Finish degree detection device and finish degree detection method |
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2020
- 2020-12-08 CN CN202011442285.6A patent/CN112577938A/en active Pending
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| US4592090A (en) * | 1981-08-11 | 1986-05-27 | De La Rue Systems Limited | Apparatus for scanning a sheet |
| US20020088952A1 (en) * | 2000-11-15 | 2002-07-11 | Rao Nagaraja P. | Optical method and apparatus for inspecting large area planar objects |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114812449A (en) * | 2022-04-21 | 2022-07-29 | 深圳市汇投智控科技有限公司 | Finish degree detection device and finish degree detection method |
| CN114812449B (en) * | 2022-04-21 | 2024-05-03 | 深圳市汇投智控科技有限公司 | Finish detection device and finish detection method |
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