CN112130033B - Cable partial discharge noise signal detection device - Google Patents
Cable partial discharge noise signal detection device Download PDFInfo
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- CN112130033B CN112130033B CN202010862560.3A CN202010862560A CN112130033B CN 112130033 B CN112130033 B CN 112130033B CN 202010862560 A CN202010862560 A CN 202010862560A CN 112130033 B CN112130033 B CN 112130033B
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- fixed mounting
- partial discharge
- noise signal
- signal detection
- cable partial
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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
- G01R31/1272—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 cable, line or wire insulation, e.g. using partial discharge measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/26—Measuring noise figure; Measuring signal-to-noise ratio
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention provides a cable partial discharge noise signal detection device which comprises a base and a detection head, wherein a sound insulation layer and a sound absorption layer are filled in the detection head, a noise sensor is fixedly arranged at the center position of the inner side wall of one side of the detection head, a fixing seat is fixedly arranged at one side of the detection head, a telescopic rod is fixedly arranged at the bottom of the fixing seat, a motor cavity and an annular cavity are arranged in the base, and a low-speed motor is fixedly arranged on the inner side wall of the bottom of the motor cavity.
Description
Technical Field
The invention belongs to the technical field of noise detection, and particularly relates to a cable partial discharge noise signal detection device.
Background
The invention provides a cable partial discharge noise signal detection device, which is characterized in that the partial discharge is generated in a local area in an insulator, is an important cause of insulation breakdown finally generated in the high-voltage electrical equipment, is an important sign of insulation degradation, and can be accompanied by phenomena such as electric pulse, ultrasonic wave, electromagnetic radiation, light and chemical reaction, and local heating when the partial discharge is generated in an insulation structure, so that the partial discharge can be monitored according to the phenomena, a partial discharge high-frequency signal is easily submerged in background noise in the cable partial discharge detection process, and the accuracy of the partial discharge is affected, however, when the existing noise signal detection device is used for noise detection, the mixed noise of various noises is often collected, the analysis difficulty and accuracy of the noise are higher, the noise removal is unfavorable when the noise detection is also higher, the influence of the reflection of the noise on the noise detection is also higher, and the existing device can not solve the problems, and when the use environment is narrower, the device easily reaches a detection position and has lower adaptability.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the cable partial discharge noise signal detection device which is reasonable in design, the detection head can detect noise in the opening direction, and the whole noise detection is divided into partial noise detection in multiple directions, so that various noises are prevented from being mixed together as much as possible, the difficulty and the accuracy of noise analysis are increased, and the noise removal during partial discharge is facilitated.
In order to achieve the above object, the present invention is realized by the following technical scheme: the utility model provides a cable partial discharge noise signal detection device, includes base and detection head, the detection head intussuseption is filled with sound insulation layer and acoustic layer, the central point department fixed mounting of detection head one side inside wall has noise sensor, one side fixed mounting of detection head has the fixing base, the bottom fixed mounting of fixing base has the telescopic link, set up motor chamber and annular chamber in the base, fixed mounting has low-speed motor on the inside wall of motor chamber bottom, fixedly connected with hexagonal pole on the output shaft of low-speed motor, the through-hole has been seted up on the inside wall at motor chamber top, the top fixed mounting of mount pad is in the through-hole, the slot has been seted up at the top of mount pad, six prismatic grooves have been seted up to the one end of bracing piece in fixed mounting in the open end of slot, fixedly inlayed with the bearing two on the inside wall of slot bottom, six prismatic pole one end pass the bearing two and with two fixed connection of bearing, the one end of bracing piece passes the bearing through six prismatic grooves cover and establishes the top at six prismatic poles in the same time, the other end of bracing piece has seted up the telescopic slot, the electric actuator shaft of the telescopic link of the electric actuator shaft of the telescopic link that the electric actuator shaft of the open end was kept away from in the telescopic link.
As a preferred embodiment of the invention, a chassis is fixedly arranged at the bottom of the base.
As a preferred embodiment of the invention, a round hole is formed in the top of the base.
As a preferred embodiment of the present invention, the number of the sound absorbing layers is plural.
As a preferred implementation mode of the invention, a storage battery is fixedly arranged in the annular cavity, a processor is fixedly arranged at the top of the storage battery, a wireless transceiver is fixedly arranged on the inner side wall of the top of the annular cavity, the storage battery is respectively and electrically connected with the processor, the noise sensor, the wireless transceiver and the low-speed motor through a power supply circuit, and the processor is respectively and electrically connected with the noise sensor, the wireless transceiver and the low-speed motor.
The invention has the beneficial effects that: the invention relates to a cable partial discharge noise signal detection device which comprises a base, a detection head, a sound insulation layer, a sound absorption layer, a noise sensor, a fixed seat, a motor cavity, an annular cavity, a low-speed motor, a six-edge rod, a mounting seat, a slot, a bearing I, a support rod, a six-edge groove, a bearing II, a telescopic groove, an electric push rod, a storage battery, a processor, a wireless transceiver, a round hole, a chassis and a telescopic rod.
1. The detection head of the cable partial discharge noise signal detection device can detect noise in the opening direction, and the whole noise detection is divided into partial noise detection in multiple directions, so that various noises are prevented from being mixed together as much as possible, the difficulty and the accuracy of noise analysis are increased, and the noise removal during partial discharge is facilitated.
2. The sound insulation layer and the sound absorption layer are arranged in the detection head of the cable partial discharge noise signal detection device, noise in the detection direction can be isolated by the sound insulation layer in the noise detection process, noise detection in the specific direction is prevented from being influenced, noise in the detection direction can be prevented from being reflected in the detection head by the sound absorption layer, noise detection in the specific direction is further prevented from being influenced, and detection accuracy is improved.
3. The support rod of the cable partial discharge noise signal detection device can be taken down, so that the degree of freedom of detection can be effectively improved, the support rod can be held by hands to move the detection head to a certain narrower or specific environments for use, the adaptability to the environments is improved, and the support rod is not contacted with the inner side wall at the bottom of the slot when being inserted into the slot, so that friction is avoided, and the smoothness of rotation is ensured.
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 will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
FIG. 1 is a schematic diagram of a cable partial discharge noise signal detection device;
FIG. 2 is a schematic cross-sectional view of a base of a cable partial discharge noise signal detection device;
FIG. 3 is a schematic cross-sectional view of a support rod of a cable partial discharge noise signal detection device;
FIG. 4 is a schematic cross-sectional view of a detecting head of a cable partial discharge noise signal detecting device;
FIG. 5 is a schematic diagram of a detecting head of a cable partial discharge noise signal detecting device;
FIG. 6 is a schematic cross-sectional view of a cable partial discharge noise signal detection device;
in the figure: 1. a base; 2. a detection head; 3. a sound insulation layer; 4. a sound absorbing layer; 5. a noise sensor; 6. A fixing seat; 7. a motor cavity; 8. an annular cavity; 9. a low-speed motor; 10. a hexagonal rod; 11. a mounting base; 12. a slot; 13. a first bearing; 14. a support rod; 15. a six-edge groove; 16. a second bearing; 17. A telescopic slot; 18. an electric push rod; 19. a storage battery; 20. a processor; 21. a wireless transceiver; 22. A round hole; 23. a chassis; 24. a telescopic rod.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides a cable partial discharge noise signal detection device, includes base 1 and detection head 2, the intussuseption of detection head 2 is filled with sound insulation layer 3 and acoustic absorption layer 4, the central point department of detection head 2 one side inside wall puts fixed mounting has noise sensor 5, one side fixed mounting of detection head 2 has fixing base 6, the bottom fixed mounting of fixing base 6 has telescopic link 24, motor chamber 7 and annular chamber 8 have been seted up in the base 1, fixed mounting has low-speed motor 9 on the inside wall of motor chamber 7 bottom, six arriss poles 10 are fixedly connected with on the output shaft of low-speed motor 9, the through-hole has been seted up on the inside wall at motor chamber 7 top, the top fixed mounting of mount pad 11 is in the through-hole, slot 12 has been seted up at the top of mount pad 11, fixed mounting has bearing one 13 in the open end of slot 12, a hexagonal groove 15 is formed at one end of the supporting rod 14, a second bearing 16 is fixedly embedded on the inner side wall at the bottom of the slot 12, one end of the hexagonal rod 10 passes through the second bearing 16 and is fixedly connected with the second bearing 16, one end of the supporting rod 14 passes through the first bearing 13 and is sleeved on the top of the hexagonal rod 10 through the hexagonal groove 15, a telescopic groove 17 is formed at the other end of the supporting rod 14, an electric push rod 18 is fixedly arranged on the inner side wall of the telescopic groove 17 away from the open end, one end of the telescopic rod 24 passes through the open end of the telescopic groove 17 and is fixedly connected with the output shaft of the electric push rod 18, the detection head 2 can detect noise in the open direction and divide the whole noise detection into local noise detection in multiple directions, so that various noises are prevented from being mixed together to increase the difficulty and accuracy of noise analysis as much as possible, facilitating noise removal during partial discharge.
As a preferred embodiment of the invention, a chassis is fixedly arranged at the bottom of the base.
As a preferred embodiment of the present invention, a circular hole 22 is formed at the top of the base 1.
As a preferred embodiment of the present invention, the number of the sound absorbing layers 4 is plural.
As a preferred embodiment of the present invention, a storage battery 19 is fixedly installed in the annular cavity 8, a processor 20 is fixedly installed at the top of the storage battery 19, a wireless transceiver 21 is fixedly installed on the inner side wall of the top of the annular cavity 8, the storage battery 19 is electrically connected with the processor 20, the noise sensor 5, the wireless transceiver 21 and the low-speed motor 9 through a power supply circuit, and the processor 20 is electrically connected with the noise sensor 5, the wireless transceiver 21 and the low-speed motor 9.
As a preferred embodiment of the invention, the sound insulation layer 3 and the sound absorption layer 4 are installed in the detection head 2, in the noise detection process, the sound insulation layer 3 can isolate the noise except the detection direction, so as to avoid affecting the noise detection in the specific direction, the sound absorption layer 4 can avoid the noise in the detection direction from reflecting in the detection head 2, further avoid affecting the noise detection in the specific direction, the detection accuracy is improved, when in use, the device is placed on a car or other mobile equipment, the device is communicated with a computer through a wireless transceiver 21, when in need of detection, a detection instruction is input through the computer, a low-speed motor 9 drives the support rod 14, a telescopic rod 24 and the detection head 2 to rotate, noise information is acquired by the noise sensor 5 and is sent to the computer through the wireless transceiver 21, the electric push rod 18 can drive the detection head 2 to lift and fall according to the need, the computer is used for controlling, the support rod 14 can be taken down, so that the detection degree of freedom can be effectively improved, the detection head 14 can be moved to a certain environments or used, the support rod 14 can be used in a certain environments, the environments can be improved, the situation that the support rod is easy to be held by a person is easy to be held by hands, and when in contact with the inner side walls 12 is not easy to be in contact with the slot 12, and when the slot 12 is not required to be in need of being in contact with the slot 12, the slot is avoided, the situation is directly, and when the slot is in need of being in need of rotation, the slot is prevented.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The utility model provides a cable partial discharge noise signal detection device, includes base (1) and detection head (2), its characterized in that, detection head (2) intussuseption is filled with sound insulation layer (3) and acoustic layer (4), the central point department fixed mounting of detection head (2) one side inside wall has noise sensor (5), one side fixed mounting of detection head (2) has fixing base (6), the bottom fixed mounting of fixing base (6) has telescopic link (24), motor chamber (7) and annular chamber (8) have been seted up in base (1), fixed mounting has low-speed motor (9) on the inside wall of motor chamber (7) bottom, six prismatic poles (10) are fixedly connected with on the output shaft of low-speed motor (9), the through-hole has been seted up on the inside wall at motor chamber (7) top, the top fixed mounting of mount pad (11) is in the through-hole, slot (12) have been seted up at the top of mount pad (11), the fixed mounting has bearing one (13) in the open end of mount pad (6), one end of bracing piece (14) has seted up six slots (15), one end of two prismatic poles (16) are connected with six prismatic poles (16) on the bottom of two prismatic poles (16), one end of the supporting rod (14) penetrates through the first bearing (13) and is sleeved on the top of the hexagonal rod (10) through the hexagonal groove (15), the other end of the supporting rod (14) is provided with a telescopic groove (17), an electric push rod (18) is fixedly installed on the inner side wall, far away from the open end, of the telescopic groove (17), and one end of the telescopic rod (24) penetrates through the open end of the telescopic groove (17) and is fixedly connected with an output shaft of the electric push rod (18).
2. The cable partial discharge noise signal detection apparatus as defined in claim 1, wherein: the bottom of the base is fixedly provided with a chassis.
3. The cable partial discharge noise signal detection apparatus as defined in claim 1, wherein: a round hole (22) is formed in the top of the base (1).
4. The cable partial discharge noise signal detection apparatus as defined in claim 1, wherein: the number of the sound absorption layers (4) is a plurality.
5. The cable partial discharge noise signal detection apparatus as defined in claim 1, wherein: the utility model discloses a high-speed motor, including annular chamber (8), battery (19) fixed mounting in annular chamber (8), the top fixed mounting of battery (19) has treater (20), fixed mounting has wireless transceiver (21) on the inside wall at annular chamber (8) top, battery (19) respectively with treater (20), noise sensor (5), wireless transceiver (21) and low-speed motor (9) electric connection through power supply circuit, treater (20) respectively with noise sensor (5), wireless transceiver (21) and low-speed motor (9) electric connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862560.3A CN112130033B (en) | 2020-08-25 | 2020-08-25 | Cable partial discharge noise signal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010862560.3A CN112130033B (en) | 2020-08-25 | 2020-08-25 | Cable partial discharge noise signal detection device |
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| Publication Number | Publication Date |
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| CN112130033A CN112130033A (en) | 2020-12-25 |
| CN112130033B true CN112130033B (en) | 2023-08-01 |
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| CN202010862560.3A Active CN112130033B (en) | 2020-08-25 | 2020-08-25 | Cable partial discharge noise signal detection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588068B (en) * | 2021-09-09 | 2023-11-14 | 国网上海市电力公司 | Power transformer noise auxiliary detection device and execution method |
| CN114265109B (en) * | 2021-12-26 | 2022-11-08 | 枣庄山好科技有限公司 | System and device for realizing frontier defense safety detection through sound waves and vibration |
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| CN101949996A (en) * | 2010-07-29 | 2011-01-19 | 大连世有电力科技有限公司 | Ultrasonic sensor used for detecting transformer partial discharge signal |
| CN103338023A (en) * | 2013-03-19 | 2013-10-02 | 甘肃省电力公司检修公司 | Filter eliminating external noises irrelevant to partial discharge during high-frequency partial discharge measurement |
| KR20170058774A (en) * | 2015-11-19 | 2017-05-29 | 한전케이디엔주식회사 | Apparatus and method for noise detecting from partial discharge |
| CN108120905A (en) * | 2017-12-13 | 2018-06-05 | 鼎阳智电慧服科技股份有限公司 | A kind of detection method of partial discharge of electrical equipment and its detection device |
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2020
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| CN101949996A (en) * | 2010-07-29 | 2011-01-19 | 大连世有电力科技有限公司 | Ultrasonic sensor used for detecting transformer partial discharge signal |
| CN103338023A (en) * | 2013-03-19 | 2013-10-02 | 甘肃省电力公司检修公司 | Filter eliminating external noises irrelevant to partial discharge during high-frequency partial discharge measurement |
| KR20170058774A (en) * | 2015-11-19 | 2017-05-29 | 한전케이디엔주식회사 | Apparatus and method for noise detecting from partial discharge |
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