CN112649668A - Electric energy quality high frequency harmonic monitoring devices - Google Patents
Electric energy quality high frequency harmonic monitoring devices Download PDFInfo
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- CN112649668A CN112649668A CN202011624588.XA CN202011624588A CN112649668A CN 112649668 A CN112649668 A CN 112649668A CN 202011624588 A CN202011624588 A CN 202011624588A CN 112649668 A CN112649668 A CN 112649668A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 63
- 238000009434 installation Methods 0.000 claims abstract description 47
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 11
- 230000003139 buffering effect Effects 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/16—Spectrum analysis; Fourier analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- 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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- 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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Abstract
The invention discloses a power quality high-frequency harmonic monitoring device, which comprises a fixed base, wherein a monitoring protection device is arranged on the fixed base through a fixing device, the monitoring protection device comprises an outer installation box body, the outer installation box body is in installation connection with an installation groove, a monitoring device body is arranged in the outer installation box body, an installation connecting plate is arranged at the bottom end of the monitoring device body, a buffering protection structure is arranged in the outer installation box body and below the installation connecting plate, the buffering protection structure comprises a fixed bottom shell, a placement cavity is formed in the fixed bottom shell, a movable installation plate is arranged in the placement cavity, an installation connecting groove is formed in the movable installation plate, and the installation connecting groove is matched with the installation connecting plate, so that the electric energy quality high-frequency harmonic: such device simple structure, the installation transportation of being convenient for, and can effectually play the effect of protection in the transportation, and when not using, conveniently accomodate, can effectively prevent the entering of dust.
Description
Technical Field
The invention relates to the technical field of harmonic electric energy, in particular to an electric energy quality high-frequency harmonic monitoring device.
Background
In a strict sense, harmonic waves refer to electric quantity with frequency which is an integral multiple of fundamental wave contained in current, generally refer to Fourier-level decomposition of periodic non-sinusoidal electric quantity, and the rest electric quantity generated by the current with frequency which is greater than the fundamental wave frequency.
With the rapid development of national economy in China, the power load is rapidly increased, the converter device is widely applied in various fields, and various impact and nonlinear loads are increasingly increased, such as: the non-linear loads cause the power quality problems of current waveform distortion, voltage fluctuation, flicker, three-phase imbalance and the like of the power system, and cause serious harm to the safe operation of the power system, such as: cause malfunction of protection and safety automatic devices, cause additional loss of rotating electrical machines, heat generation and mechanical vibration, thus causing overheating of capacitors, bringing errors to electric energy metering and common instruments, and causing interference to communication lines.
In order to monitor the quality of the power grid, a harmonic processing device is needed at the moment, but the traditional harmonic processing device is used independently and is inconvenient to place on a movable detection platform.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention provides a high-frequency harmonic monitoring device for electric energy quality, aiming at the problems in the related art and aiming at overcoming the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
a high-frequency harmonic monitoring device for electric energy quality comprises a fixed base, wherein a monitoring and protecting device is mounted on the fixed base through a fixing device, the fixing device comprises a mounting base, a mounting groove is formed in the mounting base, adjusting sliding grooves are symmetrically formed in the bottom of the mounting groove, movable clamping plates are arranged above the adjusting sliding grooves, a sliding block is fixedly arranged at the bottom ends of the movable clamping plates and matched with the adjusting sliding grooves, a connecting bearing is arranged at the center of the outer side of each movable clamping plate, a threaded through hole is formed in the mounting base and located on the outer side of each movable clamping plate, an inner ring of each connecting bearing penetrates through the threaded through hole and extends to the outside of the mounting base and is provided with a threaded adjusting rod, the monitoring and protecting device comprises an outer mounting box body which is connected with the mounting groove in an installing manner, and a monitoring device body is arranged, the monitoring device comprises a monitoring device body, wherein connecting plates are arranged on two sides of the monitoring device body, an installing bottom plate is fixedly arranged below the connecting plates on the inner wall of an outer installing box body, an electric telescopic rod is connected between the installing bottom plate and the connecting plates, a sealing cover plate is arranged on the monitoring device body and matched with the outer installing box body, an installing connecting plate is arranged at the bottom end of the monitoring device body, a buffering protection structure is arranged below the installing connecting plate in the outer installing box body and comprises a fixed bottom shell, a placing cavity is formed in the fixed bottom shell, a movable installing plate is arranged in the placing cavity, an installing connecting groove is formed in the movable installing plate and matched with the installing connecting plates, guide wheels are movably arranged on two sides of the movable installing plate, guide grooves are formed in two sides of the inner wall of the placing cavity, the guide wheels are matched with the guide grooves, the movable mounting plate and the bottom of the placing cavity are symmetrically provided with connecting blocks, the connecting blocks are all provided with movable shafts, connecting rods are arranged between the movable shafts in a crossed and movable manner, the connecting rods and the placing cavity are connected with an elastic supporting structure, the elastic supporting structure comprises an upper connecting plate and a lower connecting plate, an elastic connecting plate is connected between the upper connecting plate and the lower connecting plate, an arc-shaped mounting groove with the same inclination angle as the connecting rod is arranged on the upper connecting plate, elastic telescopic structures are arranged between the movable mounting plate and the placing cavity and positioned at two sides of the connecting rod, the elastic telescopic structure comprises a connecting cylinder, a movable cavity is arranged in the connecting cylinder, an extension rod is movably arranged in the movable cavity, and a buffer spring is connected between the bottom end of the extension rod and the bottom in the movable cavity.
Furthermore, C-shaped connecting blocks are symmetrically arranged below the fixed base, movable connecting shafts are connected between the C-shaped connecting blocks, and movable wheels are arranged on the movable connecting shafts.
Furthermore, one end of the thread adjusting rod, which is positioned outside the mounting groove, is provided with a rotating handle, and the rotating handle is provided with anti-skidding threads.
Further, the mounting base is connected with the fixed base through fixing nails.
Furthermore, an elastic base plate is arranged on one side, far away from the connecting bearing, of the movable clamping plate.
Further, the monitoring device body comprises a harmonic detector, the harmonic detector is respectively connected with an installation current transformer and a voltage transformer, and the installation current transformer is connected with the voltage transformer.
Furthermore, a limit stop is fixedly arranged at the top of the guide groove.
Furthermore, the both sides of monitoring devices body all are equipped with the heat dissipation mesh.
Furthermore, the top end of the extension rod is connected with the movable mounting plate through a connecting block.
The invention provides a high-frequency harmonic monitoring device for power quality, which has the following beneficial effects:
(1) the installation structure comprises an installation base, a mounting groove is formed in the installation base, adjusting sliding grooves are symmetrically formed in the bottom of the mounting groove, movable clamping plates are arranged above the adjusting sliding grooves, a sliding block is fixedly arranged at the bottom ends of the movable clamping plates and matched with the adjusting sliding grooves, connecting bearings are arranged at the centers of the outer sides of the movable clamping plates, threaded through holes are formed in the outer sides of the movable clamping plates on the installation base, inner rings of the connecting bearings penetrate through the threaded through holes and extend to the outside of the installation base, threaded adjusting rods are arranged outside the installation base, a monitoring device body is arranged in an outer installation box body, connecting plates are arranged on two sides of the monitoring device body, an installation bottom plate is fixedly arranged on the inner wall of the outer installation box body and is positioned below the connecting plates, an electric telescopic rod, the elastic telescopic structures are arranged on two sides of the connecting rod between the movable mounting plate and the placing cavity, when in use, the monitoring protection device is placed in the mounting groove, the thread adjusting rod is rotated, the movable clamping plate is clamped through the sliding block by utilizing the action of the connecting bearing and the thread through hole, the monitoring device body is placed in the outer mounting box body, the mounting connecting plate is mounted in the mounting connecting groove, the monitoring device body is lowered into the outer mounting box body by utilizing the action of the electric telescopic rod and is sealed by utilizing the sealing cover plate, when in transportation, the combined action of the elastic connecting plate and the buffer spring can be utilized to play an effective buffer protection role, when in detection, the monitoring device body is lifted by utilizing the electric telescopic rod, so that the detection and the use can be carried out, the device has a simple structure, is convenient to mount and transport, and can effectively play a protection role in the transportation process, and when not using, conveniently accomodate, can effectively prevent the entering of dust.
(2) The C-shaped connecting blocks are symmetrically arranged below the fixed base, movable connecting shafts are connected between the C-shaped connecting blocks, and movable wheels are arranged on the movable connecting shafts, so that the whole equipment can be conveniently moved.
(3) The thread adjusting rod is located one end outside the mounting groove is provided with a rotating handle, and the rotating handle is provided with anti-skidding threads, so that the thread adjusting rod can be rotated conveniently.
(4) The mounting base is connected with the fixed base through the fixing nails, so that the mounting base can be conveniently and fixedly mounted.
(5) And an elastic base plate is arranged on one side of the movable clamping plate, which is far away from the connecting bearing, so that the fixing stability of the movable clamping plate is improved, and the movable clamping plate is placed to rock.
(6) The harmonic wave detector is connected with an installation current transformer and a voltage transformer respectively, the installation current transformer is connected with the voltage transformer, and equipment convenient to use is achieved.
(7) And a limit stop block is fixedly arranged at the top of the guide groove and plays a role in limiting the guide wheel.
(8) And the two sides of the monitoring device body are provided with heat dissipation meshes, so that the overall heat dissipation effect of the equipment is improved.
(9) The top end of the extension rod is connected with the movable mounting plate through a connecting block, so that the movable mounting plate is convenient to connect and fix.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a front view of a power quality high frequency harmonic monitoring apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fixing device in a power quality high-frequency harmonic monitoring device according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a monitoring protection device in a power quality high-frequency harmonic monitoring device according to an embodiment of the invention.
Fig. 4 is a schematic structural diagram of a buffer protection structure in a power quality high-frequency harmonic monitoring device according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an elastic support structure in a power quality high-frequency harmonic monitoring device according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a flexible structure in a power quality high-frequency harmonic monitoring device according to an embodiment of the invention;
fig. 7 is a schematic structural diagram of a monitoring device body in a power quality high-frequency harmonic monitoring device according to an embodiment of the invention;
fig. 8 is a schematic structural diagram of a C-shaped connection block in a power quality high-frequency harmonic monitoring device according to an embodiment of the invention.
In the figure:
1. a fixed base; 2. a fixing device; 3. monitoring the protection device; 4. mounting a base; 5. mounting grooves; 6. adjusting the sliding chute; 7. a movable splint; 8. a slider; 9. connecting a bearing; 10. a threaded through hole; 11. a threaded adjusting rod; 12. a box body is arranged outside; 13. a monitoring device body; 14. a connecting plate; 15. mounting a bottom plate; 16. an electric telescopic rod; 17. sealing the cover plate; 18. mounting a connecting plate; 19. a buffer protection structure; 20. fixing a bottom shell; 21. a placement chamber; 22. a movable mounting plate; 23. mounting a connecting groove; 24. a guide wheel; 25. a guide groove; 26. connecting blocks; 27. a movable shaft; 28. a connecting rod; 29. an elastic support structure; 30. an upper connecting plate; 31. a lower connecting plate; 32. an elastic connecting plate; 33. an arc-shaped mounting groove; 34. an elastic telescopic structure; 35. a connecting cylinder; 36. a movable cavity; 37. an extension rod; 38. a buffer spring; 39. a C-shaped connecting block; 40. a movable connecting shaft; 41. a movable wheel; 42. rotating the handle; 43. an elastic backing plate; 44. a harmonic detector; 45. installing a current transformer; 46. a voltage transformer; 47. a limit stop block; 48. radiating meshes; 49. connecting blocks; 50. and (5) fixing the nail.
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The invention is further described with reference to the following drawings and detailed description:
the first embodiment is as follows:
referring to fig. 1-8, a high-frequency harmonic monitoring device for power quality according to an embodiment of the present invention includes a fixed base 1, a monitoring protection device 3 is mounted on the fixed base 1 through a fixing device 2, the fixing device 2 includes a mounting base 4, a mounting groove 5 is formed on the mounting base 4, adjusting sliding grooves 6 are symmetrically formed at the bottom of the mounting groove 5, movable clamping plates 7 are respectively disposed above the adjusting sliding grooves 6, a sliding block 8 is fixedly disposed at the bottom end of each movable clamping plate 7, the sliding block 8 is matched with the adjusting sliding groove 6, a connecting bearing 9 is disposed at the center of the outer side of each movable clamping plate 7, threaded through holes 10 are respectively disposed at the outer sides of the movable clamping plates 7 on the mounting base 4, inner rings of the connecting bearings 9 extend to a threaded adjusting rod 11 outside the mounting base 4 through the threaded through holes 10, the monitoring and protecting device 3 comprises an outer mounting box body 12, the outer mounting box body 12 is in mounting connection with the mounting groove 5, a monitoring device body 13 is arranged in the outer mounting box body 12, connecting plates 14 are arranged on two sides of the monitoring device body 13, a mounting bottom plate 15 is fixedly arranged on the inner wall of the outer mounting box body 12 below the connecting plates 14, an electric telescopic rod 16 is connected between the mounting bottom plate 15 and the connecting plates 14, a sealing cover plate 17 is arranged on the monitoring device body 13, the sealing cover plate 17 is matched with the outer mounting box body 12, a mounting connecting plate 18 is arranged at the bottom end of the monitoring device body 13, a buffering protecting structure 19 is arranged below the mounting connecting plate 18 in the outer mounting box body 12, the buffering protecting structure 19 comprises a fixed bottom shell 20, and a placing cavity 21 is arranged on the fixed bottom shell 20, the placing cavity 21 is internally provided with a movable mounting plate 22, the movable mounting plate 22 is provided with an installation connecting groove 23, the installation connecting groove 23 is matched with the installation connecting plate 18, two sides of the movable mounting plate 22 are provided with guide wheels 24, two sides of the inner wall of the placing cavity 21 are provided with guide grooves 25, the guide wheels 24 are matched with the guide grooves 25, the movable mounting plate 22 is symmetrically provided with connecting blocks 26 at the bottom of the placing cavity 21, the connecting blocks 26 are provided with movable shafts 27, the movable shafts 27 are provided with connecting rods 28 in a cross activity manner, the connecting rods 28 are connected with elastic supporting structures 29 in the placing cavity 21, the elastic supporting structures 29 comprise an upper connecting plate 30 and a lower connecting plate 31, the upper connecting plate 30 is connected with an elastic connecting plate 32 between the lower connecting plates 31, the upper connecting plate 30 is provided with arc-shaped mounting grooves 33 with the same inclination angles as the connecting rods 28, the movable mounting panel 22 with place and be located between the chamber 21 the both sides of connecting rod 28 are equipped with elastic telescopic structure 34, elastic telescopic structure 34 includes connecting cylinder 35, be equipped with movable cavity 36 in the connecting cylinder 35, the activity is equipped with extension rod 37 in the movable cavity 36, extension rod 37's bottom with be connected with buffer spring 38 between the bottom in the movable cavity 36.
Through the scheme of the invention, the mounting groove 5 is arranged on the mounting base 4, the bottom of the mounting groove 5 is symmetrically provided with the adjusting sliding grooves 6, the movable clamping plates 7 are arranged above the adjusting sliding grooves 6, the bottom ends of the movable clamping plates 7 are fixedly provided with the sliding blocks 8, the sliding blocks 8 are matched with the adjusting sliding grooves 6, the center of the outer sides of the movable clamping plates 7 is provided with the connecting bearing 9, the mounting base 4 is provided with the threaded through hole 10 at the outer side of the movable clamping plates 7, the inner ring of the connecting bearing 9 penetrates through the threaded through hole 10 and extends to the outside of the mounting base 4 to be provided with the threaded adjusting rod 11, the monitoring protection device 3 comprises an outer mounting box body 12, the outer mounting box body 12 is mounted and connected with the mounting groove 5, the inside of the outer mounting box body 12 is provided with the monitoring device body 13, and the two sides of the monitoring, the inner wall of the outer installation box body 12 is positioned below the connecting plate 14 and is fixedly provided with an installation bottom plate 15, an electric telescopic rod 16 is connected between the installation bottom plate 15 and the connecting plate 14, a buffering protection structure 19 is arranged below the installation connecting plate 18 in the outer installation box body 12, an elastic supporting structure 29 is connected between the connecting rod 28 and the placing cavity 21, elastic telescopic structures 34 are arranged on two sides of the connecting rod 28 between the movable installation plate 22 and the placing cavity 21, when the outer installation box body 12 is used, the monitoring protection device 3 is placed in the installation groove 5, then the thread adjusting rod 11 is rotated, the movable clamping plate 7 is clamped tightly through the sliding block 8 by utilizing the functions of the connecting bearing 9 and the thread through hole 10, then the monitoring device body 13 is placed in the outer installation box body 12, the installation connecting plate 18 is installed in the installation connecting groove 23, and the effect of the electric telescopic rod 16, make monitoring devices body 13 fall outside in installing box 12, and utilize sealed apron 17 to seal, during the transportation, can utilize elastic connection board 32 and buffer spring 38's combined action, play effectual buffering guard action, examine time measuring when needs, utilize electric telescopic handle 16 to make monitoring devices body 13 rise, can detect the use, such device simple structure, be convenient for install and transport, and can effectually play the effect of protection in the transportation, and when not using, conveniently accomodate, can effectively prevent the entering of dust.
Example two:
as shown in fig. 1 and 8, C-shaped connecting blocks 39 are symmetrically arranged below the fixed base 1, a movable connecting shaft 40 is connected between the C-shaped connecting blocks 39, and a movable wheel 41 is arranged on the movable connecting shaft 40, so that the whole movement of the device is facilitated.
Example three:
as shown in fig. 2, a rotating handle 42 is arranged at one end of the threaded adjusting rod 11 outside the mounting groove 5, and anti-skid threads are arranged on the rotating handle 42, so that the threaded adjusting rod 11 can be conveniently rotated for use.
Example four:
as shown in fig. 2, the mounting base 4 is connected to the fixing base 1 through fixing nails 50, so as to facilitate mounting and fixing of the mounting base 4.
Example five:
as shown in fig. 2, an elastic pad 43 is disposed on one side of the movable clamp plate 7 away from the connecting bearing 9, so as to improve the fixing stability and prevent the movable clamp plate from shaking.
Example six:
as shown in fig. 7, the monitoring device body 13 includes a harmonic detector 44, the harmonic detector 44 is connected to an installation current transformer 45 and a voltage transformer 46, and the installation current transformer 45 is connected to the voltage transformer 46, so as to facilitate the use of the device.
Example seven:
as shown in fig. 3, heat dissipation mesh holes 48 are formed on both sides of the monitoring device body 13, so that the overall heat dissipation effect of the device is improved.
Example eight:
as shown in fig. 6, the top end of the extension rod 37 is connected to the movable mounting plate 22 through a connecting block 49, so that the connection and fixation are facilitated.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the monitoring protection device 3 is placed in the mounting groove 5, the thread adjusting rod 11 is rotated, the movable clamping plate 7 is clamped through the sliding block 8 by utilizing the effects of the connecting bearing 9 and the thread through hole 10, the monitoring device body 13 is placed in the outer mounting box body 12, the mounting connecting plate 18 is mounted in the mounting connecting groove 23, the monitoring device body 13 is lowered into the outer mounting box body 12 by utilizing the effect of the electric telescopic rod 16 and is sealed by utilizing the sealing cover plate 17, the effective buffering protection effect can be realized by utilizing the combined action of the elastic connecting plate 32 and the buffering spring 38 during transportation, when detection is required, the monitoring device body 13 is lifted by utilizing the electric telescopic rod 16, detection and use can be realized, the device has a simple structure, is convenient to mount and transport, and can effectively play a protection role during transportation, and when not using, conveniently accomodate, can effectively prevent the entering of dust.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides an electric energy quality high frequency harmonic monitoring devices, its characterized in that includes unable adjustment base (1), install monitoring protection device (3) through fixing device (2) on unable adjustment base (1).
2. The electric energy quality high-frequency harmonic monitoring device according to claim 1, wherein the fixing device (2) comprises a mounting base (4), a mounting groove (5) is formed in the mounting base (4), adjusting sliding grooves (6) are symmetrically formed in the bottom of the mounting groove (5), movable clamping plates (7) are arranged above the adjusting sliding grooves (6), a sliding block (8) is fixedly arranged at the bottom end of each movable clamping plate (7), the sliding block (8) is matched with the adjusting sliding grooves (6), a connecting bearing (9) is arranged at the center of the outer side of each movable clamping plate (7), threaded through holes (10) are formed in the mounting base (4) and located on the outer sides of the movable clamping plates (7), and a threaded adjusting rod (11) is arranged outside the mounting base (4) and penetrates through the threaded through holes (10) and extends to the inner ring of the connecting bearing (9), the monitoring and protecting device (3) comprises an outer mounting box body (12), the outer mounting box body (12) is in mounting connection with the mounting groove (5), a monitoring device body (13) is arranged in the outer mounting box body (12), connecting plates (14) are arranged on two sides of the monitoring device body (13), a mounting bottom plate (15) is fixedly arranged below the connecting plates (14) on the inner wall of the outer mounting box body (12), an electric telescopic rod (16) is connected between the mounting bottom plate (15) and the connecting plates (14), a sealing cover plate (17) is arranged on the monitoring device body (13), the sealing cover plate (17) is matched with the outer mounting box body (12), a mounting and connecting plate (18) is arranged at the bottom end of the monitoring device body (13), a buffering and protecting structure (19) is arranged below the mounting and connecting plate (18) in the outer mounting box body (12), the buffer protection structure (19) comprises a fixed bottom shell (20), a placing cavity (21) is formed in the fixed bottom shell (20), a movable mounting plate (22) is arranged in the placing cavity (21), an installation connecting groove (23) is formed in the movable mounting plate (22), the installation connecting groove (23) is matched with the installation connecting plate (18), guide wheels (24) are movably arranged on two sides of the movable mounting plate (22), guide grooves (25) are formed in two sides of the inner wall of the placing cavity (21), the guide wheels (24) are matched with the guide grooves (25), connecting blocks (26) are symmetrically arranged on the movable mounting plate (22) and the bottom of the placing cavity (21), movable shafts (27) are arranged on the connecting blocks (26), connecting rods (28) are arranged between the movable shafts (27) in a crossed manner, and elastic supporting structures (29) are connected in the placing cavity (21) through the connecting rods (28), the elastic supporting structure (29) comprises an upper connecting plate (30) and a lower connecting plate (31), an elastic connecting plate (32) is connected between the upper connecting plate (30) and the lower connecting plate (31), an arc-shaped mounting groove (33) with the same inclination angle as the connecting rod (28) is formed in the upper connecting plate (30), elastic telescopic structures (34) are arranged on two sides of the connecting rod (28) between the movable mounting plate (22) and the placing cavity (21), each elastic telescopic structure (34) comprises a connecting cylinder (35), a movable cavity (36) is formed in each connecting cylinder (35), an extension rod (37) is movably arranged in each movable cavity (36), and a buffer spring (38) is connected between the bottom end of each extension rod (37) and the bottom of each movable cavity (36); when in use, the monitoring protection device (3) is placed in the mounting groove (5), the thread adjusting rod (11) is rotated, the movable clamping plate (7) is clamped through the sliding block (8) by utilizing the functions of the connecting bearing (9) and the thread through hole (10), the monitoring device body (13) is placed in the outer mounting box body (12), the mounting connecting plate (18) is mounted in the mounting connecting groove (23), the monitoring device body (13) is lowered into the outer mounting box body (12) by utilizing the function of the electric telescopic rod (16) and is sealed by utilizing the sealing cover plate (17), during transportation, the combined action of the elastic connecting plate (32) and the buffer spring (38) can be utilized to play an effective buffer protection role, when in need of detection, the monitoring device body (13) is lifted by utilizing the electric telescopic rod (16), so that the detection use can be carried out, such device simple structure, the installation transportation of being convenient for, and can effectually play the effect of protection in the transportation, and when not using, conveniently accomodate, can effectively prevent the entering of dust, the below symmetry of unable adjustment base (1) is equipped with C shape connecting block (39), be connected with swing joint axle (40) between C shape connecting block (39), be equipped with loose wheel (41) on swing joint axle (40).
3. The power quality high-frequency harmonic monitoring device according to claim 2, characterized in that the end of the screw thread adjusting rod (11) outside the mounting groove (5) is provided with a rotating handle (42), and the rotating handle (42) is provided with anti-skid screw threads.
4. An electric energy quality high frequency harmonic monitoring device according to claim 2, characterized in that the mounting base (4) is connected with the fixing base (1) by fixing nails (50).
5. A device for monitoring high frequency harmonics of the quality of electric energy, according to claim 2, characterized in that an elastic pad (43) is provided on the side of the movable clamp plate (7) remote from the connecting bearing (9).
6. An electric energy quality high frequency harmonic monitoring device according to claim 2, characterized in that the monitoring device body (13) comprises a harmonic detector (44), a mounting current transformer (45) and a voltage transformer (46) are respectively connected to the harmonic detector (44), and the mounting current transformer (45) is connected to the voltage transformer (46).
7. An electric energy quality high frequency harmonic monitoring device according to claim 2, characterized in that a limit stop (47) is fixedly arranged at the top of the guide groove (25).
8. The power quality high-frequency harmonic monitoring device according to claim 2, characterized in that both sides of the monitoring device body (13) are provided with heat dissipation meshes (48).
9. A power quality high frequency harmonic monitoring device according to claim 2, characterized in that the top end of the extension rod (37) is connected with the movable mounting plate (22) through a connecting block (49).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624588.XA CN112649668B (en) | 2020-12-30 | 2020-12-30 | Electric energy quality high-frequency harmonic monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011624588.XA CN112649668B (en) | 2020-12-30 | 2020-12-30 | Electric energy quality high-frequency harmonic monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112649668A true CN112649668A (en) | 2021-04-13 |
| CN112649668B CN112649668B (en) | 2024-05-03 |
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| CN114204689A (en) * | 2021-12-22 | 2022-03-18 | 国网辽宁省电力有限公司辽阳供电公司 | Power supply unit with long-range fault detection function |
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