CN112698139B - Remote detection device for transformer - Google Patents
Remote detection device for transformer Download PDFInfo
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- CN112698139B CN112698139B CN202011576989.2A CN202011576989A CN112698139B CN 112698139 B CN112698139 B CN 112698139B CN 202011576989 A CN202011576989 A CN 202011576989A CN 112698139 B CN112698139 B CN 112698139B
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000006399 behavior Effects 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000004907 flux Effects 0.000 description 3
- 230000005291 magnetic effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect 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
- 230000005350 ferromagnetic resonance Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
Classifications
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/62—Testing of transformers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a remote detection device for a transformer, which comprises a fixed ring, a first fixed plate, a sealing ring, a second fixed plate and a display terminal, wherein the bottom of the first fixed plate is connected with a clamping plate through a connecting unit, the fixed ring is arranged below the first fixed plate, a fixed rod penetrates through a first fixed hole and a second fixed hole and then is connected with a third fixed plate, the sealing ring and the second fixed plate are sleeved outside the fixed ring, the top of the third fixed plate is connected with a controller, and the controller is provided with a sound sensor and a temperature and humidity sensor: the sound data in the transformer can be collected and processed, then the behavior characteristics of the sounds are judged, and the working condition of the transformer is judged and alarmed according to the judgment result, and meanwhile, the transformer can be suitable for transformers of different types.
Description
Technical Field
The invention relates to a remote detection device for a transformer, and belongs to the field of transformer detection.
Background
Chinese patent CN 109507494A proposes a transformer acoustic wave detection system and proposes that the acoustic wave signals emitted by different power devices when they are operating are different. The sound wave signals emitted by the same power equipment are also greatly different under normal and abnormal states. The key to the sounds heard by the human ear is the difference in intensity and frequency of the sounds. However, the operation state analysis of the power equipment based on the sensory experience of the person is only qualitative, and the quantitative analysis cannot be achieved, so that the staff cannot monitor the sound wave signal of a certain power equipment for a long time. If a certain system can be designed, the sound wave signals of the power equipment are acquired in real time, and a certain method is found to extract the key information of the sound waves of the specific power equipment, it is possible to judge whether the power equipment works normally by taking the key information as a criterion.
The frequency range of sound waves is very wide. And the sound audible to the human ear is about a sound wave in the 20Hz to 20kHz band. The main research is on the acoustic wave signals in the frequency band emitted by the power equipment. Current research applications for acoustic waves have developed a number of different application techniques, mainly including: hydroacoustic technology, noise control technology, electroacoustic technology, speech technology, ultrasonic technology, and applications of infrasonic waves, etc. Among these techniques, speech technology is applied to make "machines" capable of understanding human language, that is, speech recognition technology, and its analysis method is relatively mature.
The technical scheme can be used for judging the working condition of the transformer in practical application, but the patent is a simple system and cannot be directly applied to production.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a remote detection device for a transformer, so as to solve the problems in the background art.
In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides a transformer remote detection device, includes solid fixed ring, first fixed plate, sealing ring, second fixed plate and display terminal, the bottom of first fixed plate is connected with the cardboard through connecting unit, gu fixed ring installs in the below of first fixed plate, gu fixed ring's inside is opened there is first fixed orifices, gu fixed rod runs through first fixed orifices and second fixed orifices, then connects the third fixed plate, gu fixed ring overcoat has sealing ring and second fixed plate, the top of third fixed plate is connected with the controller, be provided with sound sensor and temperature and humidity sensor on the controller, the inside of controller is provided with the printed circuit board, the last welding of printed circuit board has singlechip, accumulator, digital to analog converter, analog to digital converter and wireless information transmission module, the singlechip passes through analog to digital converter and temperature and humidity sensor, the singlechip passes through wireless information transmission module and connects display terminal.
Further, the bottom of first fixed plate is opened flutedly, the connecting unit comprises first connecting plate, second connecting plate and pivot, the second connecting plate is connected through the pivot to first connecting plate, the bottom at the cardboard is fixed to the second connecting plate, first connecting plate is fixed in the recess of solid fixed ring, and first connecting plate and second connecting plate can be held in the setting of recess.
Further, the clamping plate, the connecting unit and the groove form a rotating mechanism, a plurality of rotating mechanisms are arranged, and the rotating mechanisms are symmetrically arranged below the first fixing plate.
Further, the internal surface of first fixed orifices rolls there is the internal thread, the internal surface of second fixed orifices rolls there is the internal thread, the surface of dead lever rolls there is the external screw thread, the internal thread all cooperatees with the external screw thread, solid fixed ring and first fixed plate design as an organic whole, in the in-service use, when the cardboard card at the internal surface of transformer, accomplish fixed initial work after, through rotatory dead lever to change the position of controller, sound sensor and temperature and humidity sensor on the third fixed plate, accomplish middle fixed work, this kind of design is in order to adapt to the transformer of equidimension not, make this device all can carry out reasonable detection to different grade type's transformer.
Further, the cross section of sealing ring is protruding font, and this kind of design is in order to compensate the height after the cardboard is fallen, open the inside of sealing ring has the third fixed orifices, open the inside of second fixed plate has the fourth fixed orifices, the internal surface of third fixed orifices and fourth fixed orifices all rolls has the internal thread, the surface of solid fixed ring rolls has the external screw thread, the internal thread cooperatees with the external screw thread, when actual use, after accomplishing the fixed work in the middle of, earlier with sealing ring card in the outside of solid fixed ring, through rotatory sealing ring to contact sealing ring top and first fixed plate, the bottom card of sealing ring is outside the hole of transformer simultaneously, accomplishes sealed effect, after accomplishing sealed, through the outside with second fixed plate card at solid fixed ring, through rotatory second fixed plate to make second fixed plate and cardboard cooperation, with sealing ring, solid fixed ring and transformer fixed column, accomplish whole fixed operation.
Further, the output end of the sound sensor is connected with the input end of the analog-to-digital converter, the input end of the analog-to-digital converter is also connected with the output end of the temperature and humidity sensor, the output end of the analog-to-digital converter is connected with the input end of the single chip microcomputer, the output end of the single chip microcomputer is connected with the input end of the digital-to-analog converter, the output end of the digital-to-analog converter is connected with the input end of the wireless information transmission module, the output end of the wireless information transmission module is connected with the input end of the display terminal, and the single chip microcomputer is also connected with the bidirectional data of the storage.
Further, the characteristic value of the sound is stored in the storage, the characteristic value of the sound refers to the sound of the internal components of the transformer when the transformer works, under the initial condition, the sound data in the transformer are collected through the sound sensor, then the singlechip records the characteristic information through the storage and a plurality of small databases, all sound behavior information of one transformer is collected, all sound behavior information of one transformer is sent to a large database, the working behavior information behavior characteristics of the transformer are extracted, a threshold value is set, all sound behavior information of the transformer is compared with the threshold value, and all sound behavior information behaviors of the transformer are divided;
During actual use, sound data in the transformer are collected through the sound sensor, then the sound information is converted into digital quantity through the analog-to-digital converter and is transmitted to the singlechip, the singlechip extracts the sound information, and the sound behavior characteristics are extracted and judged by sending the information to a large database and a display terminal;
and processing, namely judging and alarming the working condition of the transformer according to the judging result.
Further, when in actual use, the temperature and humidity sensor collects temperature and humidity data inside the transformer, then converts the temperature and humidity information into digital quantity through the analog-to-digital converter, and transmits the digital quantity to the singlechip, and the singlechip converts the information into analog quantity through the digital-to-analog converter and transmits the analog quantity to the display terminal through the wireless information transmission module, so that workers can check and process the temperature and humidity information.
The invention has the beneficial effects that: the remote detection device for the transformer can collect and process sound data in the transformer, then judge the behavior characteristics of the sounds, judge and alarm the working condition of the transformer according to the judging result, and adapt to different types of transformers.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a remote detection device for a transformer according to the present invention;
FIG. 2 is a schematic diagram showing the deployment of a clamping plate of a remote detection device for a transformer according to the present invention;
FIG. 3 is a schematic diagram of a clamping plate and a first fixing plate of a remote detection device for a transformer according to the present invention;
FIG. 4 is a schematic diagram illustrating bending of a clamping plate of a remote detection device for a transformer according to the present invention;
FIG. 5 is an enlarged view of the portion A of a remote detection device for transformers according to the present invention;
FIG. 6 is a schematic diagram of a seal ring of a remote detection device for a transformer according to the present invention;
FIG. 7 is a schematic diagram of a second fixing plate of a remote detection device for a transformer according to the present invention;
FIG. 8 is a schematic diagram of a printed circuit board of a remote detection device for transformers according to the present invention;
FIG. 9 is a schematic block diagram of a remote detection device for transformers according to the present invention;
In the figure: the device comprises a 1-fixing ring, a 2-first fixing plate, a 3-sealing ring, a 4-second fixing plate, a 5-display terminal, a 11-controller, a 12-sound sensor, a 13-temperature and humidity sensor, a 14-third fixing plate, a 15-fixing rod, a 16-first fixing hole, a 111-printed circuit board, a 112-singlechip, a 113-storage, a 114-digital-analog converter, a 115-analog-digital converter, a 116-wireless information transmission module, a 21-second fixing hole, a 22-clamping plate, a 23-groove, a 24-first connecting plate, a 25-second connecting plate, a 26-rotating shaft, a 31-third fixing hole and a 41-fourth fixing hole.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1 to 9, the present invention provides a technical solution: the utility model provides a transformer remote detection device, including solid fixed ring 1, first fixed plate 2, sealing ring 3, second fixed plate 4 and display terminal 5, the bottom of first fixed plate 2 is connected with cardboard 22 through the connecting element, gu fixed ring 1 installs the below at first fixed plate 2, gu fixed ring 1's inside is opened there is first fixed hole 16, gu fixed plate 2's inside is opened there is second fixed hole 21, the dead lever runs through first fixed hole 16 and second fixed hole 21, then connect third fixed plate 14, gu fixed ring 1 overcoat has sealing ring 3 and second fixed plate 4, the top of third fixed plate 14 is connected with controller 11, be provided with sound sensor 12 and temperature and humidity sensor 13 on the controller 11, the inside of controller 11 is provided with printed circuit board 111, the welding has singlechip 112 on the printed circuit board 111, the accumulator 113, digital-analog converter 114, analog-digital converter 115 and wireless information transmission module 116, singlechip 112 passes through analog-digital converter 115 and connects sound sensor 12 and temperature and humidity sensor 13, singlechip 112 passes through wireless information transmission terminal 116 and connects the display terminal 116.
As an embodiment of the invention, the bottom of the first fixing plate 2 is provided with the groove 23, the connecting unit is composed of the first connecting plate 24, the second connecting plate 25 and the rotating shaft 26, the first connecting plate 24 is connected with the second connecting plate 25 through the rotating shaft 26, the second connecting plate 25 is fixed at the bottom of the clamping plate 22, the first connecting plate 24 is fixed in the groove 23 of the fixing ring 1, the groove 23 can accommodate the first connecting plate 24 and the second connecting plate 25, so that the included angle between the clamping plate 22 and the first fixing plate 2 is smaller than 90 degrees in actual use, the use is convenient, and meanwhile, the device can be conveniently fixed on all sides of the transformer through the design.
As one embodiment of the present invention, the clamping plate 22, the connecting unit and the groove 23 form a rotating mechanism, the rotating mechanism is provided with a plurality of rotating mechanisms, the rotating mechanisms are symmetrically arranged below the first fixing plate 2, in actual use, a hole with a diameter larger than that of the first fixing plate 2 is formed on the surface of the transformer, then the clamping plates 22 are straightened, the device is plugged into the hole, then the clamping plates 22 are flattened (a plurality of methods, such as a shaking device, can be directly flattened under the action of gravity sometimes) and then the clamping plates 22 are parallel to the first fixing plate 2, and then the fixing rod is pulled backwards, so that the clamping plates 22 are clamped on the inner surface of the transformer to complete initial fixing work.
As an embodiment of the invention, the inner surface of the first fixing hole 16 is rolled with an internal thread, the inner surface of the second fixing hole 21 is rolled with an internal thread, the outer surface of the fixing rod is rolled with an external thread, the internal thread is matched with the external thread, the fixing ring 1 and the first fixing plate 2 are designed as a whole, when in actual use, when the clamping plate 22 is clamped on the inner surface of the transformer, after the initial fixing work is completed, the fixing rod is rotated, so that the positions of the controller 11, the sound sensor 12 and the temperature and humidity sensor 13 on the third fixing plate 14 are changed, and the intermediate fixing work is completed.
As an embodiment of the present invention, the cross section of the sealing ring 3 is in a convex shape, in order to compensate the height of the clamp plate 22 after being laid down, the inside of the sealing ring 3 is provided with a third fixing hole 31, the inside of the second fixing plate 4 is provided with a fourth fixing hole 41, the inner surfaces of the third fixing hole 31 and the fourth fixing hole 41 are all rolled with internal threads, the outer surface of the fixing ring 1 is rolled with external threads, the internal threads are matched with the external threads, when the middle fixing work is finished in actual use, the sealing ring 3 is clamped on the outer side of the fixing ring 1, the top of the sealing ring 3 is contacted with the first fixing plate 2 by rotating the sealing ring 3, meanwhile, the bottom of the sealing ring 3 is clamped on the outer side of a hole of the transformer, after the sealing is finished, the second fixing plate 4 is clamped on the outer side of the fixing ring 1, and the second fixing plate 4 is matched with the clamp plate 22 by rotating the second fixing plate 4, so that the sealing ring 3, the fixing ring 1 and the transformer fixing column are finished.
As an embodiment of the present invention, the output end of the sound sensor 12 is connected to the input end of the analog-to-digital converter 115, the input end of the analog-to-digital converter 115 is further connected to the output end of the temperature and humidity sensor 13, the output end of the analog-to-digital converter 115 is connected to the input end of the single-chip microcomputer 112, the output end of the single-chip microcomputer 112 is connected to the input end of the digital-to-analog converter 114, the output end of the digital-to-analog converter 114 is connected to the input end of the wireless information transmission module 116, the output end of the wireless information transmission module 116 is connected to the input end of the display terminal 5, and the single-chip microcomputer 112 is further connected to the storage 113 in two-way data.
As an embodiment of the present invention, a characteristic value of sound is stored in the storage 113, and the characteristic value of sound refers to sound of internal components of the transformer when the transformer is operated, for example, when the transformer is operated normally and abnormally: (1) In normal operation, as alternating current passes through the transformer coil and periodic alternating magnetic flux is generated in the iron core, the vibration of the iron core is caused to generate uniform buzzing sound; (2) When overload occurs, the magnetic flux density of the iron core is increased due to the larger current of the coil of the transformer, so that the vibration force of the silicon steel sheet of the iron core is enhanced, and thus, a slightly louder and heavier buzzing sound than normal operation is generated; (3) When the large power equipment is started, the Java sound is instantly emitted in the transformer due to the large load change and the action of higher harmonic waves; (4) When the system is short-circuited, the magnetic flux density is excessively increased due to the fact that the transformer passes through a large amount of non-periodic current, the iron core is seriously saturated, and the transformer emits great noise; (5) When the internal contact is poor or a breakdown exists, the transformer gives out a discharging sound of 'creak' or 'crack', and when the internal of the transformer is seriously discharged, gas is generated to enable the gas to protect the transformer; (6) Because of ferromagnetic resonance, the interior of the transformer emits a humming sound and a slender humming sound, the sound becomes thinner along with the rising of voltage and frequency and becomes thicker along with the falling of voltage and frequency, in the initial condition, the sound data in the interior of the transformer is collected through the sound sensor 12, then the singlechip 112 records the characteristic information through the storage 113 and a plurality of small databases, all the sound behavior information of one transformer is collected, all the sound behavior information of one transformer is sent to a large database, the working behavior information behavior characteristics of the transformer are extracted, a threshold value is set, all the sound behavior information of the transformer is compared with the threshold value, and all the sound behavior information behaviors of the transformer are divided;
During actual use, the sound sensor 12 collects sound data in the transformer, the analog-to-digital converter 115 converts the sound information into digital quantity, the digital quantity is transmitted to the single chip microcomputer 112, the single chip microcomputer 112 extracts the sound information, and the sound behavior characteristics are extracted and judged by sending the information to a large database and the display terminal 5;
and processing, namely judging and alarming the working condition of the transformer according to the judging result.
As an embodiment of the present invention, during actual use, the temperature and humidity sensor 13 collects temperature and humidity data inside the transformer, then converts the temperature and humidity information into digital data through the analog-to-digital converter 115, and transmits the digital data to the single chip microcomputer 112, and the single chip microcomputer 112 converts the digital data into analog data through the digital-to-analog converter 114, and transmits the analog data to the display terminal 5 through the wireless information transmission module 116, so as to be checked and processed by staff.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalents and modifications can be made to the above-mentioned embodiments without departing from the scope of the invention.
Claims (4)
1. The utility model provides a long-range detection device of transformer, includes solid fixed ring, first fixed plate, sealing ring, second fixed plate and display terminal, its characterized in that: the bottom of the first fixed plate is connected with a clamping plate through a connecting unit, the fixed ring is arranged below the first fixed plate, a first fixed hole is formed in the fixed ring, a second fixed hole is formed in the first fixed plate, a fixed rod penetrates through the first fixed hole and the second fixed hole and then is connected with a third fixed plate, a sealing ring and the second fixed plate are sleeved outside the fixed ring, the top of the third fixed plate is connected with a controller, a sound sensor and a temperature and humidity sensor are arranged on the controller, a printed circuit board is arranged in the controller, a singlechip, a memory, a digital-analog converter, an analog-digital converter and a wireless information transmission module are welded on the printed circuit board, the singlechip is connected with the sound sensor and the temperature and humidity sensor through the analog-digital converter, and the singlechip is connected with a display terminal through the wireless information transmission module;
The bottom of the first fixing plate is provided with a groove, the connecting unit is composed of a first connecting plate, a second connecting plate and a rotating shaft, the first connecting plate is connected with the second connecting plate through the rotating shaft, the second connecting plate is fixed at the bottom of the clamping plate, the first connecting plate is fixed in the groove of the fixing ring, and the first connecting plate and the second connecting plate can be accommodated by the groove;
the clamping plate, the connecting unit and the grooves form a rotating mechanism, a plurality of rotating mechanisms are arranged, and the rotating mechanisms are symmetrically arranged below the first fixed plate;
The inner surface of the first fixing hole is provided with an internal thread, the inner surface of the second fixing hole is provided with an internal thread, the outer surface of the fixing rod is provided with an external thread, the internal threads are matched with the external thread, and the fixing ring and the first fixing plate are integrally designed;
The cross section of sealing ring is protruding font, and this kind of design is in order to compensate the cardboard height after falling down, open the inside of sealing ring has the third fixed orifices, open the inside of second fixed plate has the fourth fixed orifices, the internal surface of third fixed orifices and fourth fixed orifices all rolls has the internal thread, the surface of solid fixed ring rolls has the external screw thread, the internal screw thread cooperatees with the external screw thread.
2. The remote detection device for transformers according to claim 1, wherein: the output end of the sound sensor is connected with the input end of the analog-to-digital converter, the input end of the analog-to-digital converter is also connected with the output end of the temperature and humidity sensor, the output end of the analog-to-digital converter is connected with the input end of the single chip microcomputer, the output end of the single chip microcomputer is connected with the input end of the digital-to-analog converter, the output end of the digital-to-analog converter is connected with the input end of the wireless information transmission module, the output end of the wireless information transmission module is connected with the input end of the display terminal, and the single chip microcomputer is also connected with the bidirectional data of the storage.
3. The remote detection device for transformers according to claim 2, wherein: the method comprises the steps that a characteristic value of sound is stored in a storage, under an initial condition, sound data inside a transformer are collected through a sound sensor, then a singlechip records the characteristic information through the storage and a plurality of small databases, all sound behavior information of one transformer is collected, all sound behavior information of one transformer is sent to a large database, working behavior information behavior characteristics of the transformer are extracted, a threshold value is set, all sound behavior information of the transformer is compared with the threshold value, and all sound behavior information behaviors of the transformer are divided;
During actual use, sound data in the transformer are collected through the sound sensor, then the sound information is converted into digital quantity through the analog-to-digital converter and is transmitted to the singlechip, the singlechip extracts the sound information, and the sound behavior characteristics are extracted and judged by sending the information to a large database and a display terminal;
and processing, namely judging and alarming the working condition of the transformer according to the judging result.
4. A transformer remote sensing apparatus according to claim 3, wherein: the temperature and humidity sensor collects temperature and humidity data inside the transformer, then converts the temperature and humidity information into digital quantity through the analog-to-digital converter, and transmits the digital quantity to the singlechip, and the singlechip converts the information into analog quantity through the digital-to-analog converter and transmits the analog quantity to the display terminal through the wireless information transmission module, so that the information is checked and processed by staff.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011576989.2A CN112698139B (en) | 2020-12-28 | 2020-12-28 | Remote detection device for transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011576989.2A CN112698139B (en) | 2020-12-28 | 2020-12-28 | Remote detection device for transformer |
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| CN112698139A CN112698139A (en) | 2021-04-23 |
| CN112698139B true CN112698139B (en) | 2024-06-04 |
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| CN202011576989.2A Active CN112698139B (en) | 2020-12-28 | 2020-12-28 | Remote detection device for transformer |
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