CN114242431A - Current transformer with multi-turn conducting rod - Google Patents
Current transformer with multi-turn conducting rod Download PDFInfo
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- CN114242431A CN114242431A CN202111441497.7A CN202111441497A CN114242431A CN 114242431 A CN114242431 A CN 114242431A CN 202111441497 A CN202111441497 A CN 202111441497A CN 114242431 A CN114242431 A CN 114242431A
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- 238000009434 installation Methods 0.000 claims description 62
- 230000000694 effects Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 7
- 206010066054 Dysmorphism Diseases 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention provides a current transformer with multi-turn conducting rods, and relates to the technical field of current transformers. According to the invention, the two arc-shaped plates are driven to fix the cable to be tested by operating the movable rod, the cable to be tested is ensured to be positioned at the central position of the threading hole to a certain extent, the possibility of position deviation of the cable to be tested is avoided as much as possible, the two clamping plates are driven by the arranged transverse rod to further enhance the stability of fixing the position of the cable to be tested, the cable to be tested is synchronously fixed and clamped by the mutual matching of the fixing mechanism and the clamping mechanism, the position of the cable to be tested is doubly fixed, and the possibility of position deviation of the cable is greatly avoided.
Description
Technical Field
The invention relates to the technical field of current transformers, in particular to a current transformer with multi-turn conducting rods.
Background
The current transformer is a power supply for supplying current for starting a measuring instrument and a relay protection device, the current transformer is an instrument for converting large primary side current into small secondary side current to measure according to the electromagnetic induction principle, the current transformer is composed of a closed iron core and a winding, the number of turns of the primary side winding is small, the number of turns of the secondary side winding is large, the current transformer is connected in series in the measuring instrument and a protection loop, when the current transformer works, the secondary side loop of the current transformer is always closed, the working state of the current transformer is close to short circuit, and the current transformer converts the large primary side current into the small secondary side current to measure.
However, in the prior art, the current transformer of the current multiturn conducting rod usually directly passes through the through wire hole with the cable to be detected, the magnetic field of the multiturn conducting rod of the current transformer is used for detecting the cable to be detected which passes through the through wire hole, and because of the weight of the cable to be detected and the flexibility of the cable to be detected, the position of the cable to be detected in the through wire hole is difficult to fix, the cable to be detected is difficult to ensure to be exactly located at the central position of the through wire hole all the time, once the position of the cable to be detected deviates, the inaccuracy of the detection of the cable to be detected by the current transformer is easily caused, and the detection result of the current transformer is influenced.
Disclosure of Invention
The invention aims to solve the technical problems that the position of a cable to be detected in a threading hole is difficult to fix due to the self weight and the bending property of the cable to be detected in the prior art, the cable to be detected is difficult to ensure to be always exactly positioned at the central position of the threading hole, and the detection result of a current transformer is influenced because the position of the cable to be detected deviates once, so that the detection of the cable to be detected by the current transformer is inaccurate.
In order to achieve the purpose, the invention adopts the following technical scheme: a current transformer with multi-turn conducting rods comprises a current transformer body, wherein a threading hole is formed in the front side of the current transformer body, a fixing mechanism is arranged on the front side of the current transformer body, a clamping mechanism is arranged on the rear side of the current transformer body, an installing mechanism is arranged at the bottom of the current transformer body, the fixing mechanism comprises a first installing shell, two sliding seats are installed in the first installing shell, a first sliding rail is installed in the first installing shell, the two sliding seats are installed at the top of the first sliding rail, an arc-shaped groove is formed in one side, close to the threading hole, of the first installing shell, first installing blocks are installed at the tops of the two sliding seats, fixing portions are installed on one sides of the two first installing blocks, racks are installed on one sides of the two sliding seats, and special-shaped gears meshed with the racks are arranged on one sides of the two racks, two the dysmorphism gear is all installed in first installation shell, two be connected with the connecting plate between the dysmorphism gear, the movable rod is installed to one side of connecting plate, the one end activity that the connecting plate was kept away from to the movable rod runs through one side of first installation shell, the movable rod overcoat has extension spring.
As a preferred implementation manner, the fixing portion includes a first connecting rod, the first connecting rod penetrates through the arc-shaped groove and extends to the outside of the first mounting shell, a top plate is mounted at one end of the first connecting rod, which is far away from the arc-shaped groove, an arc-shaped plate is mounted at the bottom of the top plate, and a fixing spring is mounted between the top of the arc-shaped plate and the bottom of the top plate.
The beneficial effect of adopting the further scheme is that: fix the cable that awaits measuring through two arcs that set up, guaranteed to a certain extent that the cable that awaits measuring is located the central point of through wires hole and put, avoided the possibility of the skew of the cable that awaits measuring as far as, further guaranteed the accuracy of current transformer testing result, fixed spring can cushion the effort of the cable that awaits measuring to two arcs, avoided the arc too big to the cable effort that awaits measuring to a certain extent, caused the possibility of the unexpected damage of the cable that awaits measuring.
As a preferred embodiment, fixture includes the second installation shell, install the second slide rail in the second installation shell, the slip table is installed at the top of second slide rail, the quantity of slip table is two, two the second installation piece is all installed at the top of slip table, and one side of two second installation pieces all is provided with the clamping part.
The beneficial effect of adopting the further scheme is that: the clamping part is driven to move relatively by the two second mounting blocks, so that the cable to be tested is clamped.
As a preferred embodiment, the clamping part includes the diaphragm, the diaphragm is close to one side of second installation shell and installs the second connecting rod, the arc wall has been seted up to one side that the second installation shell is close to the through wires hole, the second connecting rod runs through the arc wall and installs the one side at the second installation piece, the grip block is installed to the bottom of diaphragm, install the centre gripping spring between the top of grip block and the bottom of diaphragm.
The beneficial effect of adopting the further scheme is that: the stability of fixing the position of the cable to be detected is further enhanced through the two clamping plates, the possibility of position deviation of the cable to be detected is reduced, and the accuracy of a detection result of the current transformer is enhanced.
As a preferred embodiment, the inner bottom wall of the first mounting shell is provided with a first sliding groove, the inner bottom wall of the second mounting shell is provided with a second sliding groove, one side of the sliding table is provided with a side plate, a cross rod is mounted between the side plate and the rack, and the cross rod penetrates through the first sliding groove and the second sliding groove.
The beneficial effect of adopting the further scheme is that: through the horizontal pole that sets up, drive the synchronous motion of arc and grip block, realize fixed establishment and fixture to the synchronous fixed and centre gripping of the cable that awaits measuring.
As a preferred embodiment, one side of the first mounting shell is provided with a positioning mechanism, the positioning mechanism comprises a mounting sleeve, the mounting sleeve is sleeved outside the movable rod, the top of the movable rod is provided with a movable groove, the top of the mounting sleeve is provided with a threaded sleeve, a screw rod penetrates through the threaded sleeve, the bottom of the screw rod penetrates through the mounting sleeve, and the bottom of the screw rod is provided with a positioning block matched with the movable groove.
The beneficial effect of adopting the further scheme is that: the limiting of the movable rod is completed through the arranged positioning mechanism, the movable rod is prevented from moving randomly, the stability of the fixing mechanism and the clamping mechanism is further ensured, the stability of the position fixing of the cable is improved at the same time,
as a preferred embodiment, the mounting groove has been seted up to the bottom of mounting panel, the bottom of mounting groove is provided with limit structure, the front side of mounting panel is opened and is equipped with the rectangular channel, install spacing dish in the mounting groove, the screw is installed to one side of spacing dish, the screw runs through the rectangular channel.
The beneficial effect of adopting the further scheme is that: through the mounting groove and the rectangular channel that set up, further buffering current transformer is to the effort that the screw produced, avoids directly driving the not hard up possibility of screw when current transformer slightly shakes, has further guaranteed current transformer's stability.
As a preferred embodiment, limit structure includes the limiting plate, all there is the spout the inner wall both sides of mounting groove are seted up, the both sides of limiting plate are installed respectively in two spouts.
The beneficial effect of adopting the further scheme is that: realize the spacing to the screw through the limiting plate, avoid the screw roll-off mounting groove.
Compared with the prior art, the invention has the advantages and positive effects that,
1. in the invention, the movable rod is operated to drive the two arc-shaped plates to fix the cable to be detected, the cable to be detected is ensured to be positioned at the central position of the threading hole to a certain extent, the possibility of position deviation of the cable to be detected is avoided as much as possible, the accuracy of the detection result of the current transformer is further ensured, the acting force of the two arc-shaped plates on the cable to be detected can be buffered by the fixing spring, the possibility of accidental damage of the cable to be detected caused by overlarge acting force of the arc-shaped plates on the cable to be detected is avoided to a certain extent, the stability of fixing the position of the cable to be detected is further enhanced by driving the two clamping plates by the arranged cross rod, the possibility of position deviation of the cable to be detected is reduced, the accuracy of the detection result of the current transformer is enhanced, and the synchronous fixing and clamping of the cable to be detected are realized by the mutual matching of the fixing mechanism and the clamping mechanism, the position of the cable to be tested is doubly fixed, so that the possibility of the position of the cable deviating is greatly avoided.
2. In the invention, the limiting of the movable rod is completed through the arranged positioning mechanism, the movable rod is prevented from moving randomly, the stability of the fixing mechanism and the clamping mechanism is further ensured, and the stability of the position fixing of the cable is improved.
3. In the invention, the mounting groove and the rectangular groove are matched with each other, so that the acting force of the current transformer on the screw is further buffered, when the current transformer slightly vibrates, the screw and the limiting plate 352 can synchronously slide in the mounting groove and the rectangular groove, the possibility that the screw is directly driven to be loosened when the current transformer slightly vibrates is effectively avoided, the stability of the current transformer is further ensured, the limiting of the screw is realized through the limiting plate, and the possibility that the screw slides out of the mounting groove is avoided.
Drawings
FIG. 1 is a perspective view of a current transformer having a multi-turn conductive rod according to the present invention;
FIG. 2 is a side perspective view of a current transformer having a multi-turn conductive rod in accordance with the present invention;
fig. 3 is a sectional perspective view of a fixing mechanism of a current transformer having a multi-turn conductive rod according to the present invention;
FIG. 4 is a perspective view in cross-section of a clamping mechanism of a current transformer having multi-turn conductive rods in accordance with the present invention;
FIG. 5 is a perspective cutaway view of a positioning mechanism for a current transformer having a multi-turn conductive rod in accordance with the present invention;
FIG. 6 is a perspective cutaway view of a mounting mechanism for a current transformer having a multi-turn conductive rod in accordance with the present invention;
fig. 7 is a sectional perspective view of a current transformer limiting structure having a multi-turn conductive rod according to the present invention.
Illustration of the drawings:
1. a current transformer body; 2. a fixing mechanism; 3. an installation mechanism; 4. a clamping mechanism; 5. a cross bar; 6. a positioning mechanism; 7. threading holes;
21. a first mounting case; 22. a special-shaped gear; 23. a connecting plate; 24. an extension spring; 25. a movable rod; 26. an arc-shaped slot; 27. a slide base; 28. a rack; 29. a fixed part; 30. a first slide rail;
291. a top plate; 292. an arc-shaped plate; 293. fixing the spring; 294. a first connecting rod; 295. a first mounting block; 296. a first sliding groove;
31. mounting a plate; 32. a limiting disc; 33. a screw; 34. a rectangular groove; 35. a limiting structure; 36. mounting grooves;
351. a chute; 352. a limiting plate;
41. a second mounting case; 42. a second sliding groove; 43. a second slide rail; 44. a side plate; 45. a sliding table; 46. a second mounting block; 47. a clamping portion;
471. a clamping plate; 472. a transverse plate; 473. a clamping spring; 474. a second connecting rod;
61. a movable groove; 62. installing a sleeve; 63. a screw; 64. a threaded sleeve; 65. and (5) positioning the blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-3, the present invention provides a technical solution: a current transformer with multi-turn conducting rods comprises a current transformer body 1, wherein a threading hole 7 is formed in the front side of the current transformer body 1, a fixing mechanism 2 is arranged on the front side of the current transformer body 1, a clamping mechanism 4 is arranged on the rear side of the current transformer body 1, an installation mechanism 3 is arranged at the bottom of the current transformer body 1, the fixing mechanism 2 comprises a first installation shell 21, two sliding seats 27 are installed in the first installation shell 21, a first sliding rail 30 is installed in the first installation shell 21, the two sliding seats 27 are installed at the top of the first sliding rail 30, an arc-shaped groove 26 is formed in one side, close to the threading hole 7, of the first installation shell 21, first installation blocks 295 are installed at the tops of the two sliding seats 27, fixing portions 29 are installed on one sides of the two first installation blocks 295, racks 28 are installed on one sides of the two sliding seats 27, special-shaped gears 22 meshed with the racks 28 are arranged on one sides of the two racks 28, two dysmorphism gears 22 are all installed in first installation shell 21, be connected with connecting plate 23 between two dysmorphism gears 22, movable rod 25 is installed to one side of connecting plate 23, one end activity that connecting plate 23 was kept away from to movable rod 25 runs through one side of first installation shell 21, movable rod 25 overcoat has extension spring 24, fixed part 29 includes head rod 294, head rod 294 runs through arc wall 26, extend to outside first installation shell 21, head rod 294 keeps away from the one end of arc wall 26 and installs roof 291, arc 292 is installed to the bottom of roof 291, install fixed spring 293 between the top of arc 292 and the bottom of roof 291.
In this embodiment, after the cable to be tested passes through the threading hole 7, the movable rod 25 is pulled outwards and the connecting plate 23 is driven to move outwards, the shaped gears 22 on both sides are driven to rotate anticlockwise while the connecting plate 23 moves, the two shaped gears 22 drive the two racks 28 to slide relatively on the top of the first slide rail 30 through the slide base 27 while rotating, the two racks 28 drive the two first connecting rods 294 to move relatively in the arc-shaped grooves 26 through the two first mounting blocks 295 while sliding relatively, the two top plates 291 drive the two arc-shaped plates 292 to move relatively toward the center of the threading hole 7 while moving, until the two arc-shaped plates 292 fix the cable to be tested, the position of the cable to be tested is fixed at the center of the threading hole 7, and the possibility of position deviation of the cable to be tested is avoided as much as possible, the accuracy of current transformer testing result has further been guaranteed, and fixed spring 293 compresses when two arcs 292 go on fixing to the cable that awaits measuring, can cushion the effort of the cable that awaits measuring two arcs 292, has avoided to a certain extent that arc 292 is too big to the cable effort that awaits measuring, causes the possibility of the unexpected damage of the cable that awaits measuring.
Example 2
As shown in fig. 1, 2 and 4, the clamping mechanism 4 includes a second mounting case 41, a second sliding rail 43 is mounted in the second mounting case 41, two sliding tables 45 are mounted on the top of the second sliding rail 43, a second mounting block 46 is mounted on the top of each of the two sliding tables 45, a clamping portion 47 is disposed on one side of each of the two second mounting blocks 46, the clamping portion 47 includes a transverse plate 472, a second connecting rod 474 is mounted on one side of the transverse plate 472 close to the second mounting case 41, an arc-shaped groove 26 is disposed on one side of the second mounting case 41 close to the threading hole 7, the second connecting rod 474 is mounted on one side of the second mounting block 46 through the arc-shaped groove 26, a clamping plate 471 is mounted on the bottom of the transverse plate 472, a clamping spring 473 is mounted between the top of the clamping plate 471 and the bottom of the transverse plate 472, a first sliding groove 296 is disposed on the inner bottom wall of the first mounting case 21, a second sliding groove 42 is disposed on the inner bottom wall of the second mounting case 41, a side plate 44 is installed on one side of the slide table 45, a cross bar 5 is installed between the side plate 44 and the rack 28, and the cross bar 5 penetrates through the first slide groove 296 and the second slide groove 42.
In this embodiment, when the two racks 28 slide relatively, the two cross bars 5 are driven to slide in the first sliding groove 296 and the second sliding groove 42, the two cross bars 5 slide while driving the two sliding tables 45 to slide relatively at the top of the second sliding rail 43 through the two side plates 44, the two sliding tables 45 slide while driving the two second connecting rods 474 to move relatively in the arc-shaped groove 26, the second connecting rods 474 move relatively while driving the two clamping plates 471 to move relatively through the two transverse plates 472, until the two clamping plates 471 move relatively to clamp the cable to be tested, the stability of fixing the position of the cable to be tested is further enhanced through the two clamping plates 471, the possibility of the displacement of the cable to be tested is reduced, and the accuracy of the detection result of the current transformer is enhanced.
Example 3
As shown in fig. 1, 2 and 5, one side of the first mounting case 21 is provided with a positioning mechanism 6, the positioning mechanism 6 includes a mounting sleeve 62, the mounting sleeve 62 is sleeved outside the movable rod 25, the top of the movable rod 25 is provided with a movable groove 61, the top of the mounting sleeve 62 is provided with a threaded sleeve 64, a threaded rod 63 penetrates through the threaded sleeve 64, the bottom of the threaded rod 63 penetrates through the mounting sleeve 62, and the bottom of the threaded rod 63 is provided with a positioning block 65 adapted to the movable groove 61.
In this embodiment, after the cable position to be measured is fixed by operating the movable rod 25 to drive the fixing mechanism 2 and the clamping mechanism 4 simultaneously, the screw 63 is screwed manually, so that the screw 63 moves downwards in the thread bushing 64, and the screw 63 moves downwards and simultaneously drives the positioning block 65 installed at the bottom of the screw 63 to move downwards, until the bottom of the positioning block 65 is in contact with the inner bottom wall of the movable groove 61 at the top of the movable rod 25, so as to complete the limitation on the movable rod 25, thereby avoiding the random movement of the movable rod 25, further ensuring the stability of the fixing mechanism 2 and the clamping mechanism 4, and simultaneously improving the stability of cable position fixing.
Example 4
As shown in fig. 1, 2, 6 and 7, the mounting mechanism 3 includes a mounting plate 31, a mounting groove 36 is provided at the bottom of the mounting plate 31, a limiting structure 35 is provided at the bottom of the mounting groove 36, a rectangular groove 34 is provided at the front side of the mounting plate 31, a limiting disc 32 is installed in the mounting groove 36, a screw 33 is installed at one side of the limiting disc 32, the screw 33 penetrates through the rectangular groove 34, the limiting structure 35 includes a limiting plate 352, sliding grooves 351 are provided at both sides of the inner wall of the mounting groove 36, and both sides of the limiting plate 352 are installed in the two sliding grooves 351 respectively.
In this embodiment, when the current transformer is installed and used, the screw 33 is fixed on the installation portion, the limiting disc 32 is installed into the installation groove 36 from the bottom of the installation groove 36, the screw 33 penetrates through the rectangular groove 34, the installation plate 31 is moved downward until the top of the limiting disc 32 contacts with the top of the installation groove 36, the top of the screw 33 contacts with the top of the rectangular groove 34, the installation of the installation plate 31 is completed, the current transformer is installed at the same time, the limiting plate 352 is pushed to slide in the sliding groove 351 until the limiting plate 352 completely covers the bottom of the installation groove 36, the limiting of the screw 33 is realized through the limiting plate 352, through the installation groove 36 and the rectangular groove 34, the screw 33 and the limiting plate 352 can slide in the installation groove 36 and the rectangular groove 34 when the current transformer slightly vibrates, and the acting force of the current transformer on the screw 33 is further buffered, the possibility that the screw 33 is directly driven to be loosened when the current transformer slightly vibrates is avoided, and the stability of the current transformer is further ensured.
The working principle is as follows:
as shown in fig. 1-7, after a cable to be tested passes through the threading hole 7, the movable rod 25 is pulled outwards and the connecting plate 23 is driven to move outwards, the connecting plate 23 is driven to rotate anticlockwise while the connecting plate 23 moves, the two special-shaped gears 22 drive the two racks 28 to slide relatively on the top of the first slide rail 30 through the slide carriage 27 while rotating, the two racks 28 drive the two first connecting rods 294 to move relatively in the arc-shaped groove 26 through the two first mounting blocks 295 while sliding relatively, the first connecting rods 294 drive the two top plates 291 to move relatively while moving, the two top plates 291 drive the two arc-shaped plates 292 to move relatively toward the center of the threading hole 7 while moving, until the two arc-shaped plates 292 fix the cable to be tested, the position of the cable to be tested is fixed at the center of the threading hole 7, and the possibility of position deviation of the cable to be tested is avoided as much as possible, the two arc plates 292 compress the fixing spring 293 when fixing the cable to be tested, so as to buffer the acting force of the two arc plates 292 on the cable to be tested, when the two racks 28 slide relatively, the two cross rods 5 are driven to slide in the first sliding groove 296 and the second sliding groove 42, when the two cross rods 5 slide, the two sliding tables 45 are driven to slide relatively on the top of the second sliding rail 43 through the two side plates 44, the two sliding tables 45 slide while the two second connecting rods 474 move relatively in the arc groove 26, when the second connecting rods 474 move relatively, the two clamping plates 471 are driven to move relatively through the two transverse plates 472 until the two clamping plates 471 move relatively to clamp the cable to be tested, the stability of fixing the position of the cable to be tested is further enhanced through the two clamping plates 471, when the movable rod 25 is operated to drive the fixing mechanism 2 and the clamping mechanism 4 to fix the position of the cable to be tested at the same time, the screw 63 is manually screwed, so that the screw 63 moves downwards in the threaded sleeve 64, the screw 63 drives the positioning block 65 arranged at the bottom of the screw 63 to move downwards while moving downwards until the bottom of the positioning block 65 is positioned in contact with the inner bottom wall of the movable groove 61 at the top of the movable rod 25, the movable rod 25 is limited, the movable rod 25 is prevented from moving freely, the stability of the fixing mechanism 2 and the clamping mechanism 4 is further ensured, the stability of the position fixing of the cable is improved, when the movable rod 25 needs to be operated, only the screw 63 needs to be screwed again, the positioning block 65 is separated from the movable groove 61, when the current transformer is installed and used, the screw 33 is firstly fixed at the installation part, the limiting disc 32 is installed into the installation groove 36 from the bottom of the installation groove 36, the screw 33 penetrates through the rectangular groove 34, the installation plate 31 moves downwards until the top of the limiting disc 32 is in contact with the top of the installation groove 36, simultaneously the top of screw 33 also contacts with the top of rectangular channel 34, accomplish the fixed mounting to mounting panel 31, realize the installation to current transformer simultaneously, promote limiting plate 352 and slide in spout 351, until limiting plate 352 covers the bottom of mounting groove 36 completely, realize spacing to screw 33 through limiting plate 352, through mounting groove 36 and rectangular channel 34 that sets up, screw 33 and limiting plate 352 can slide at mounting groove 36 and rectangular channel 34 when current transformer shakes slightly, further cushion the effort that current transformer produced screw 33, avoid directly driving the not hard up possibility of screw 33 when current transformer shakes slightly.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (8)
1. A current transformer with multi-turn conducting bars, comprising a current transformer body (1), characterized in that: the utility model discloses a current transformer, including current transformer main part (1), front side, fixed establishment (2), rear side, first installation shell (21), slide (27) are installed to the rear side of current transformer main part (1), the bottom of current transformer main part (1) is provided with installation mechanism (3), fixed establishment (2) includes first installation shell (21), install slide (27) in first installation shell (21), the quantity of slide (27) is two, install first slide rail (30) in first installation shell (21), two slide (27) are all installed at the top of first slide rail (30), arc wall (26) have been seted up to one side that first installation shell (21) are close to through wires hole (7), two first installation piece (295) are all installed at the top of slide (27), two fixed part (29) are all installed, two to one side of first installation piece (295) rack (28) are all installed, two to one side of slide (27) one side of rack (28) all is provided with special-shaped gear (22) with rack (28) engaged with, two special-shaped gear (22) are all installed in first installation shell (21), two be connected with connecting plate (23) between special-shaped gear (22), movable rod (25) are installed to one side of connecting plate (23), the one end activity that connecting plate (23) were kept away from in movable rod (25) runs through one side of first installation shell (21), extension spring (24) have been overlapped to movable rod (25) overcoat.
2. A current transformer having a multi-turn conductive rod as claimed in claim 1, wherein: fixed part (29) include first connecting rod (294), first connecting rod (294) run through arc wall (26), extend to outside first installation shell (21), and roof (291) are installed to the one end that arc wall (26) were kept away from in first connecting rod (294), arc (292) are installed to the bottom of roof (291), install between the top of arc (292) and the bottom of roof (291) fixed spring (293).
3. A current transformer having a multi-turn conductive rod as claimed in claim 1, wherein: fixture (4) include second installation shell (41), install second slide rail (43) in second installation shell (41), slip table (45) are installed at the top of second slide rail (43), the quantity of slip table (45) is two, two second installation piece (46) are all installed at the top of slip table (45), and one side of two second installation pieces (46) all is provided with clamping part (47).
4. A current transformer having a multi-turn conductive rod as claimed in claim 3, wherein: clamping part (47) includes diaphragm (472), second connecting rod (474) are installed to one side that diaphragm (472) are close to second installation shell (41), arc wall (26) have been seted up to one side that second installation shell (41) are close to through wires hole (7), one side at second installation piece (46) is installed in second connecting rod (474) through arc wall (26), clamping plate (471) are installed to the bottom of diaphragm (472), install between the top of clamping plate (471) and the bottom of diaphragm (472) centre gripping spring (473).
5. A current transformer having a multi-turn conductive rod as claimed in claim 4, wherein: first sliding tray (296) have been seted up to the inner bottom wall of first installation shell (21), second sliding tray (42) have been seted up to the inner bottom wall of second installation shell (41), curb plate (44) are installed to one side of slip table (45), install horizontal pole (5) between curb plate (44) and rack (28), first sliding tray (296) and second sliding tray (42) are run through in horizontal pole (5).
6. A current transformer having a multi-turn conductive rod as claimed in claim 1, wherein: one side of first installation shell (21) is provided with positioning mechanism (6), positioning mechanism (6) are including installation cover (62), installation cover (62) cover is established outside movable rod (25), movable groove (61) have been seted up at the top of movable rod (25), thread bush (64) are installed at the top of installation cover (62), it has screw rod (63) to run through in thread bush (64), installation cover (62) is run through to the bottom of screw rod (63), and the bottom of screw rod (63) install with movable groove (61) locating piece (65) of looks adaptation.
7. A current transformer having a multi-turn conductive rod as claimed in claim 1, wherein: installation mechanism (3) include mounting panel (31), mounting groove (36) have been seted up to the bottom of mounting panel (31), the bottom of mounting groove (36) is provided with limit structure (35), rectangular channel (34) have been seted up to the front side of mounting panel (31), install spacing dish (32) in mounting groove (36), screw (33) are installed to one side of spacing dish (32), screw (33) run through rectangular channel (34).
8. A current transformer having a multi-turn conductive rod as claimed in claim 7, wherein: the limiting structure (35) comprises a limiting plate (352), sliding grooves (351) are formed in two sides of the inner wall of the mounting groove (36), and two sides of the limiting plate (352) are mounted in the two sliding grooves (351) respectively.
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| CN115993558A (en) * | 2023-03-22 | 2023-04-21 | 西安交通大学城市学院 | Electrical property measuring device of high-low voltage power distribution cabinet |
| CN117031356A (en) * | 2023-08-21 | 2023-11-10 | 国网安徽省电力有限公司霍邱县供电公司 | TT system distribution area electric leakage detection method and device |
| CN117572287A (en) * | 2023-12-27 | 2024-02-20 | 长春三鼎变压器有限公司 | Low-voltage high-current measuring equipment and method for electric furnace transformer |
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| CN114242431B (en) | 2024-01-09 |
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