CN116660597A - High-voltage cable fault detection method and device - Google Patents
High-voltage cable fault detection method and device Download PDFInfo
- Publication number
- CN116660597A CN116660597A CN202310944439.9A CN202310944439A CN116660597A CN 116660597 A CN116660597 A CN 116660597A CN 202310944439 A CN202310944439 A CN 202310944439A CN 116660597 A CN116660597 A CN 116660597A
- Authority
- CN
- China
- Prior art keywords
- voltage cable
- cable fault
- voltage
- fixedly arranged
- fault detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 79
- 230000008093 supporting effect Effects 0.000 claims abstract description 38
- 230000000087 stabilizing effect Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 21
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- 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
- 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
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Abstract
The invention discloses a high-voltage cable fault detection method and a device, which relate to the technical field of high-voltage cable fault detection and comprise a high-voltage cable fault detector main body, wherein the bottom of the high-voltage cable fault detector main body is provided with a mounting mechanism, the top end of the inner side of the mounting mechanism is provided with an adjusting mechanism, the adjusting mechanism is connected with the high-voltage cable fault detector main body, and one side of the mounting mechanism is provided with a supporting mechanism; through screw rod, backup pad, bracing piece and first spring, when needs use high-voltage cable fault detector main part in slope position, the staff rotates and grips piece and screw rod, drives bracing piece and backup pad downwardly moving contact inclined plane, produces a decurrent effort to the backup pad after the compression of first spring, and the inclined plane produces opposite direction frictional force to the backup pad to realize the supporting role to whole device, make high-voltage cable fault detector main part be convenient for place well and spacing on the inclined plane, enlarged the application range of device.
Description
Technical Field
The invention relates to the technical field of high-voltage cable fault detection, in particular to a high-voltage cable fault detection method and device.
Background
The high-voltage cable is an electric energy transmission device and is made of one or more mutually insulated conductors and an outer insulating protective layer, and has the characteristics of inner electrifying and outer insulation. At present, when the cable is used, the cable can be laid in a cable well dug in advance, the outside of the cable is prevented from being damaged, so that the cable cannot work, and generally after the cable breaks down, the fault point cannot be judged easily by manpower because the cable is long in length, and a worker can estimate the fault point of the cable by using a fault detector and then move to a fault section to search and maintain.
The invention patent with the publication number of CN115078774A discloses a high-voltage power cable fault detection device, which comprises: the working box is provided with a plurality of groups of through grooves at the bottom end, a fault detector is arranged in the working box, a connecting port is arranged on the fault detector, and a plurality of groups of sliding grooves are formed in the fault detector; further comprises: the pushing component is used for enabling the working box to be pushed on the ground conveniently, is arranged in the working box and is connected with the fault detector; the blocking assembly is used for controlling the opening and closing of the through grooves, is arranged in the working box and is connected with the pushing assembly, and the high-voltage power cable fault detection device effectively solves the problems that the fault detector is required to be continuously moved, the time and the labor are wasted in inspection work, and the working efficiency is low due to the fact that the pushing assembly is arranged.
The device has the defects in the use process, a worker detects the cable in places such as the field, when the detection place is positioned on a slope, the device cannot be well placed and limited on the slope, and the device is in an inclined state and is inconvenient to use, so that the use range of the device is limited, and the inventor proposes a high-voltage cable fault detection method and device for solving the problems.
Disclosure of Invention
In order to solve the problem that the device cannot be well placed and limited on an inclined plane; the invention aims to provide a high-voltage cable fault detection method and device.
In order to solve the technical problems, the invention adopts the following technical scheme: the high-voltage cable fault detection method comprises a polarity converter, a low-voltage direct-current power supply, a direct-current ammeter, the polarity converter and two high-internal-resistance voltmeters, and comprises the following steps: step one, forming a fault detection circuit by the low-voltage direct-current power supply, the direct-current ammeter, the polarity converter and the two high-internal-resistance voltmeters, and connecting a high-voltage cable into the circuit to prepare for fault detection; step two, regulating the voltage of the low-voltage direct-current power supply from zero voltage until the direct-current voltmeter reaches a preset value, and recording the readings of the two high-internal-resistance voltmeters; step three, the low-voltage direct-current power supply voltage is returned to zero, and the output electrode of the polarity converter is changed; step four, regulating the voltage of the low-voltage direct-current power supply from zero voltage until the direct-current voltmeter reaches the preset value in the step three, and recording the readings of the two high-internal-resistance voltmeters again; step five, calculating the average value of the voltage values recorded twice by the two high internal resistance voltmeters in the step two and the step four; and step six, calculating the distance between the high-resistance fault point of the high-voltage cable and the position of the low-voltage direct-current power supply.
The high-voltage cable fault detection device comprises a high-voltage cable fault detection device main body, wherein a mounting mechanism is arranged at the bottom of the high-voltage cable fault detection device main body, an adjusting mechanism is arranged at the top end of the inner side of the mounting mechanism, the adjusting mechanism comprises a fixed plate, a sliding groove is formed in the bottom of the fixed plate, a through hole is formed in the bottom of the sliding groove, a sliding plate is slidably arranged in the sliding groove, a connecting rod is rotatably arranged at the top of the sliding plate, a mounting plate is rotatably arranged at one end of the connecting rod, two symmetrical second rotating shafts are fixedly arranged on two sides of the mounting plate, the bottom of the high-voltage cable fault detection device main body is fixedly matched with the top of the mounting plate, a rack is fixedly arranged at the bottom of the sliding plate, the adjusting mechanism is connected with the high-voltage cable fault detection device main body, one side of the mounting mechanism is provided with a supporting mechanism, one side of the supporting mechanism is provided with a transmission mechanism, the transmission mechanism is arranged on one side of the supporting mechanism, the transmission mechanism comprises a third rotating shaft, a fourth rotating shaft, a connecting shaft, two first straight gears and a bevel gear, one of the two first straight gears are meshed with the bevel gears, the other straight gears are sleeved on the first rotating shaft, one of the first rotating shaft is fixedly sleeved with the other straight gears is sleeved with the other straight shafts, the other straight gears is meshed with the other one of the two first rotating shafts, the two straight gears are meshed with the other shafts, and the other straight shafts are fixedly sleeved with the other one of the transmission mechanism, and the two transmission mechanism, and the transmission mechanism is fixedly arranged on the first shafts, and is meshed with the first belt pulley, the utility model provides a telescopic link, including installation mechanism opposite side both ends symmetry is provided with stop gear, supporting mechanism includes the fixed frame, the mounting hole has been seted up at fixed frame top center, the mounting hole rotates and is provided with first pivot, the fixed piece that grips that is provided with in first pivot top, first pivot bottom fixed is provided with the screw rod, screw rod bottom and fixed frame inner wall bottom normal running fit, screw rod surface screw thread is provided with the movable strip, movable strip both ends respectively with fixed frame inner wall both sides center contact, movable strip one side bottom normal running is provided with the bracing piece, bracing piece one end is fixed and is provided with the connecting block, through-hole has been seted up to connecting block one side both ends symmetry, the through-hole slides and is provided with the guide bar, guide bar surface cover is equipped with first spring, two guide bar one end is fixed and is provided with the dead lever, the dead lever bottom rotates and is provided with the backup pad, movable strip one side top is fixed and is provided with the roof, roof bottom normal running fit is provided with the inner rod, the fixed outer pole that is provided with in movable strip top, the outer pole top is provided with the spacing groove, limit slot is seted up with the through-hole, the first telescopic link bottom joint has a plurality of telescopic link and a telescopic link, one side fixed knot top is provided with the telescopic link.
Preferably, the stop gear includes the installation piece, fixed diaphragm that is provided with in installation piece one side, the round hole has been seted up at the diaphragm top, the round hole slides and is provided with the gag lever post, two spacing holes have been seted up to gag lever post one side, the jack has been seted up to diaphragm one side, jack and one of them spacing Kong Nabu joint are provided with same bolt.
Preferably, the stabilizing mechanism comprises a sleeve, the inner wall of the sleeve is in running fit with the surface of the connecting shaft, connecting strips are symmetrically and fixedly arranged at two ends of one side of the sleeve, stabilizing plates are fixedly arranged at one ends of the connecting strips, and stabilizing blocks are symmetrically and fixedly arranged at two ends of the stabilizing plates.
Preferably, the installation mechanism comprises an installation frame, the equal fixed montant that is provided with in installation frame bottom corner, second pivot and installation frame inner wall one side normal running fit, fixed frame top and bottom both ends equal symmetrical fixed block that is provided with, four fixed block one side is respectively through first bolt and two montant one side fixed fit wherein, fixed plate top both ends symmetrical fixed vertical bar that is provided with, the fixed kicking block that is provided with in vertical bar top, the kicking block top is through second bolt and installation frame bottom one end fixed fit, two the installation piece opposite side is respectively through third bolt and two other montant one end fixed fit, two firm piece one side is respectively through fourth bolt and two other montant one side fixed fit.
Compared with the prior art, the invention has the beneficial effects that:
1. through the screw rod, the supporting plate, the supporting rod and the first spring, when the high-voltage cable fault detector main body is required to be used at a slope position, a worker rotates the holding block and the screw rod to drive the supporting rod and the supporting plate to move downwards to contact with the slope, the first spring generates an inclined downward acting force on the supporting plate after being compressed, and the slope generates a friction force in the opposite direction on the supporting plate, so that the supporting effect on the whole device is realized, the high-voltage cable fault detector main body is convenient to place and limit on the slope well, and the application range of the device is enlarged;
2. through second straight-tooth wheel and rack, when needs adjust high voltage cable fault detector main part and make it be in the horizontality, when first pivot rotates, drive second straight-tooth wheel and rotate, and then drive the rack and remove, and then drive high voltage cable fault detector main part and rotate, when removing the strip and remove to setting for the position, high voltage cable fault detector main part rotates to the horizontality from the position parallel with the inclined plane, so be convenient for use high voltage cable fault detector main part carries out fault detection to high voltage cable for high voltage cable fault detector main part uses more conveniently.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a first view of the present invention.
Fig. 2 is a schematic view of a second perspective structure of the present invention.
Fig. 3 is a schematic cross-sectional perspective view of the present invention.
Fig. 4 is an enlarged schematic view of the part a of fig. 3 according to the present invention.
FIG. 5 is a schematic view of the supporting mechanism of the present invention.
Fig. 6 is a schematic diagram of the structure of the transmission mechanism of the present invention.
FIG. 7 is a schematic view of the adjusting mechanism of the present invention.
FIG. 8 is a schematic view of the mounting mechanism of the present invention.
FIG. 9 is a schematic view of a stabilizing mechanism according to the present invention.
Fig. 10 is a schematic structural view of a limiting mechanism according to the present invention.
FIG. 11 is a flow chart of the detection method of the present invention.
In the figure: 1. a high voltage cable fault detector body; 2. a mounting mechanism; 21. a mounting frame; 22. a vertical rod; 3. an adjusting mechanism; 31. a fixing plate; 32. a sliding plate; 33. a connecting rod; 34. a mounting plate; 35. a second rotating shaft; 36. a rack; 37. a vertical bar; 38. a top block; 4. a support mechanism; 41. a fixed frame; 42. a first rotating shaft; 43. a grip block; 44. a screw; 45. moving the bar; 46. a support rod; 47. a connecting block; 48. a guide rod; 49. a first spring; 410. a fixing strip; 411. a support plate; 412. a top plate; 413. an inner rod; 414. a rotating block; 415. an outer rod; 416. a second spring; 417. a clamping hole; 418. a telescopic rod; 419. a clamping rod; 420. a fixed block; 5. a transmission mechanism; 51. a third rotating shaft; 52. a fourth rotating shaft; 53. a connecting shaft; 54. a first straight gear; 55. bevel gears; 56. a belt pulley; 57. a second spur gear; 6. a stabilizing mechanism; 61. a sleeve; 62. a connecting strip; 63. a stabilizing plate; 64. a stabilizing block; 7. a limiting mechanism; 71. a mounting block; 72. a cross plate; 73. a limit rod; 74. a limiting hole; 75. a bolt.
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.
Examples: as shown in fig. 1-11, the invention provides a high-voltage cable fault detection method, which comprises a polarity converter, a low-voltage direct-current power supply, a direct-current ammeter, the polarity converter and two high-internal-resistance voltmeters, and comprises the following steps: step one, a low-voltage direct-current power supply, a direct-current ammeter, a polarity converter and two high-internal-resistance voltmeters form a fault detection circuit, and a high-voltage cable is connected into the circuit to prepare for fault detection; step two, regulating the voltage of the low-voltage direct-current power supply from zero voltage until the direct-current ammeter reaches a preset value, and recording readings of two high-internal-resistance voltmeters; step three, the voltage of the low-voltage direct-current power supply is returned to zero, and the output electrode of the polarity converter is changed; regulating the voltage of the low-voltage direct-current power supply from zero voltage until the direct-current ammeter reaches the preset value in the third step, and recording the readings of the two high-internal-resistance voltmeters again; step five, calculating the average value of the voltage values recorded twice by the two high internal resistance voltmeters in the step two and the step four; step six, calculating the distance between the high-resistance fault point of the high-voltage cable and the position of the low-voltage direct-current power supply, and detecting the fault point of the high-voltage cable conveniently through the polarity converter, the low-voltage direct-current power supply, the direct-current ammeter, the polarity converter and the two high-internal-resistance voltmeters.
The utility model provides a high-voltage cable fault detection device, including high-voltage cable fault detection instrument main part 1, high-voltage cable fault detection instrument main part 1 bottom is provided with installation mechanism 2, installation mechanism 2 inboard top is provided with adjustment mechanism 3, adjustment mechanism 3 links to each other with high-voltage cable fault detection instrument main part 1, installation mechanism 2 one side is provided with supporting mechanism 4, supporting mechanism 4 one side is provided with drive mechanism 5, drive mechanism 5 one side is provided with stabilizing mean 6, drive mechanism 5 links to each other with adjustment mechanism 3, installation mechanism 2 opposite side both ends symmetry is provided with stop gear 7, through adjustment mechanism 3, make high-voltage cable fault detection instrument main part 1 keep the horizontality, make things convenient for the staff to carry out fault detection to high-voltage cable, through stop gear 7, be convenient for fix the device on the slope spacing and fixed it, through supporting mechanism 4, be convenient for the device play the supporting role to it when using on the slope.
The supporting mechanism 4 comprises a fixed frame 41, the center of the top of the fixed frame 41 is provided with a mounting hole, the mounting hole is rotationally provided with a first rotating shaft 42, the top end of the first rotating shaft 42 is fixedly provided with a holding block 43, the bottom end of the first rotating shaft 42 is fixedly provided with a screw rod 44, the bottom end of the screw rod 44 is in rotational fit with the bottom end of the inner wall of the fixed frame 41, the surface of the screw rod 44 is provided with a movable strip 45, two ends of the movable strip 45 are respectively in central contact with two sides of the inner wall of the fixed frame 41, one side bottom end of the movable strip 45 is rotationally provided with a supporting rod 46, one end of the supporting rod 46 is fixedly provided with a connecting block 47, two ends of one side of the connecting block 47 are symmetrically provided with through holes, the through holes are slidingly provided with guide rods 48, the surface of the guide rods 48 is sleeved with a first spring 49, one ends of the two guide rods 48 are fixedly provided with a fixed strip 410, and the bottom of the fixed strip 410 is rotationally provided with a supporting plate 411.
Through adopting above-mentioned technical scheme, when needs use high tension cable fault detector main part 1 in slope position, the staff holds the piece 43 rotation of holding, drive first pivot 42 and screw rod 44 rotation, and then drive movable strip 45 and move down along vertical direction, and then drive bracing piece 46 and backup pad 411 and move down, after the backup pad 411 contacts the inclined plane, movable strip 45 continues to move down, drive bracing piece 46 and rotate, compress first spring 49, produce an inclined decurrent effort to backup pad 411 after the compression of first spring 49, the inclined plane produces opposite direction frictional force to backup pad 411, play the supporting role to the device.
The fixed roof 412 that is provided with in top of removal strip 45 one side, roof 412 bottom rotate and are provided with interior pole 413, and bracing piece 46 top rotates and is provided with rotary block 414, and rotary block 414 top is fixed to be provided with outer pole 415, and the spacing groove has been seted up on outer pole 415 top, and spacing groove bottom is fixed to be provided with second spring 416, and interior pole 413 bottom and the fixed cooperation of second spring 416 one end.
Through adopting above-mentioned technical scheme, when bracing piece 46 rotates, interior pole 413 slides along the spacing groove, compresses or stretches second spring 416, and can not break away from outer pole 415 all the time, is convenient for carry out spacing to bracing piece 46.
The surface of the first rotating shaft 42 is provided with a plurality of clamping holes 417, a telescopic rod 418 is fixedly arranged at the top end of one side of the inner wall of the fixed frame 41, an intermediate block is arranged at the output end of the telescopic rod 418, and a clamping rod 419 is fixedly arranged at one side of the intermediate block, and the clamping rod 419 is matched with the clamping holes 417 in a clamping way.
Through adopting above-mentioned technical scheme, when movable bar 45 moved to the settlement position, adjust telescopic link 418 and make it extend, drive intermediate piece and block lever 419 and remove towards the direction that is close to block hole 417 for block lever 419 and block hole 417 block each other, be convenient for carry out spacing to first pivot 42, thereby make the fixed position of bracing piece 46 and backup pad 411, play normal supporting role.
The adjustment mechanism 3 includes fixed plate 31, and the spout has been seted up to fixed plate 31 bottom, and the perforation has been seted up to the spout bottom, and the inside slip of spout is provided with sliding plate 32, and sliding plate 32 top rotates and is provided with connecting rod 33, and connecting rod 33 one end rotates and is provided with mounting panel 34, and mounting panel 34 bilateral symmetry is fixed and is provided with second pivot 35, and high-voltage cable fault detector main part 1 bottom and mounting panel 34 top fixed cooperation, sliding plate 32 bottom fixed be provided with rack 36.
Through adopting above-mentioned technical scheme, when needing to adjust mounting panel 34 and making it be in the horizontality, drive mechanism 5 drives rack 36 and sliding plate 32 and slides along the direction of spout, and this direction is close to grip block 43, and then drive connecting rod 33 and rotate, and then drive mounting panel 34 and use second pivot 35 to rotate as the axle center, and then drive high-voltage cable fault detector main part 1 and rotate, when moving strip 45 moves to the settlement position, high-voltage cable fault detector main part 1 rotates to the horizontality, so be convenient for use high-voltage cable fault detector main part 1 carries out fault detection to high-voltage cable.
The transmission mechanism 5 comprises a third rotating shaft 51, a fourth rotating shaft 52, a connecting shaft 53, two first straight gears 54 and bevel gears 55, wherein the two first straight gears 54 are meshed, one first straight gear 54 is sleeved on the first rotating shaft 42, the other first straight gear 54 and one bevel gear 55 are sleeved on the third rotating shaft 51, the two bevel gears 55 are meshed, the other bevel gear 55 is sleeved on the fourth rotating shaft 52, one end of the fourth rotating shaft 52 is provided with two belt pulleys 56, the two belt pulleys 56 are in transmission fit through a conveying belt, one belt pulley 56 is sleeved on one end of the fourth rotating shaft 52, the other belt pulley 56 is sleeved on the connecting shaft 53, one end of the connecting shaft 53 is sleeved with a second straight gear 57, and the second straight gear 57 is meshed with the rack 36.
Through adopting above-mentioned technical scheme, when first pivot 42 rotates, drive two first straight gears 54, and then drive bevel gear 55 and fourth pivot 52 rotation, and then drive belt pulley 56 and connecting axle 53 rotation, and then drive second straight gear 57 rotation, and then drive rack 36 and remove.
The stop gear 7 includes the installation piece 71, and the fixed diaphragm 72 that is provided with in installation piece 71 one side, the round hole has been seted up at diaphragm 72 top, and the round hole slides and is provided with gag lever post 73, and two spacing holes 74 have been seted up to gag lever post 73 one side, and the jack has been seted up to diaphragm 72 one side, and jack and the inside joint in one of them spacing hole 74 are provided with same bolt 75.
Through adopting above-mentioned technical scheme, when the device is used on the slope to needs, take down bolt 75, in driving gag lever post 73 into the slope, insert bolt 75 again, avoid gag lever post 73 to rock, so be convenient for carry out spacing and fixed to whole device.
The stabilizing mechanism 6 comprises a sleeve 61, the inner wall of the sleeve 61 is in rotary fit with the surface of the connecting shaft 53, connecting strips 62 are symmetrically and fixedly arranged at two ends of one side of the sleeve 61, a stabilizing plate 63 is fixedly arranged at one end of each connecting strip 62, and stabilizing blocks 64 are symmetrically and fixedly arranged at two ends of each stabilizing plate 63.
By adopting the above technical scheme, the connecting shaft 53 is conveniently installed through the sleeve 61, so that the connecting shaft can normally rotate.
The installation mechanism 2 comprises an installation frame 21, vertical rods 22 are fixedly arranged at corners of the bottom of the installation frame 21, a second rotating shaft 35 is in running fit with one side of the inner wall of the installation frame 21, fixing blocks 420 are symmetrically and fixedly arranged at the top and the bottom of the fixing frame 41, one side of each of the four fixing blocks 420 is fixedly fit with one side of two vertical rods 22 through a first bolt, vertical bars 37 are symmetrically and fixedly arranged at the two ends of the top of the fixing plate 31, top blocks 38 are fixedly arranged at the top ends of the vertical bars 37, the top of each top block 38 is fixedly fit with one end of the bottom of the installation frame 21 through a second bolt, the other side of each of the two installation blocks 71 is fixedly fit with one end of the other two vertical rods 22 through a third bolt, and one side of each of the two fixing blocks 64 is fixedly fit with one side of the other two vertical rods 22 through a fourth bolt.
Through adopting above-mentioned technical scheme, through first bolt, be convenient for carry out the dismouting to supporting mechanism 4, through the second bolt, be convenient for carry out the dismouting to adjustment mechanism 3, through the third bolt, be convenient for carry out the dismouting to stop gear 7, through the fourth bolt, be convenient for carry out the dismouting to stabilizing mean 6.
Working principle:
when the high-voltage cable fault detector main body 1 is required to be used at a slope position, the plug pin 75 is taken down, the limiting rod 73 is nailed into the slope, then the plug pin 75 is inserted, the worker holds the holding block 43 to rotate, the first rotating shaft 42 and the screw rod 44 are driven to rotate, and then the moving bar 45 is driven to move downwards along the vertical direction, and further the supporting rod 46 and the supporting plate 411 are driven to move downwards, after the supporting plate 411 contacts with the inclined plane, the moving bar 45 continues to move downwards, the supporting rod 46 is driven to rotate, the first spring 49 is compressed, an inclined downward acting force is generated on the supporting plate 411, the inclined plane generates a friction force in the opposite direction on the supporting plate 411, when the moving bar 45 moves to a set position, the telescopic rod 418 is adjusted to extend, the middle block and the clamping rod 419 are driven to move towards the direction close to the clamping hole 417, and the clamping rod 419 is clamped with the clamping hole 417, so that the supporting effect on the whole device is realized, and the high-voltage cable fault detector main body 1 is convenient to place and limit on the inclined plane, and the application range of the device is enlarged.
When the high-voltage cable fault detector main body 1 is placed on a slope, the high-voltage cable fault detector main body 1 is in a state parallel to the slope, when the high-voltage cable fault detector main body 1 needs to be adjusted to be in a horizontal state, the first rotating shaft 42 rotates, the two first straight gears 54 are driven, the bevel gear 55 and the fourth rotating shaft 52 are driven to rotate, the belt pulley 56 and the connecting shaft 53 are driven to rotate, the second straight gears 57 are driven to rotate, the rack 36 is driven to move, the sliding plate 32 is driven to slide along the direction of the sliding groove, the connecting rod 33 is driven to rotate, the mounting plate 34 is driven to rotate with the second rotating shaft 35 as the axis, the high-voltage cable fault detector main body 1 is driven to rotate, and the moving bar 45 moves to a set position, so that the high-voltage cable fault detector main body 1 can conveniently detect faults of the high-voltage cable from the position parallel to the slope, and the high-voltage cable fault detector main body 1 is more convenient to use.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The high-voltage cable fault detection method comprises a polarity converter, a low-voltage direct-current power supply, a direct-current ammeter, the polarity converter and two high-internal-resistance voltmeters, and is characterized by comprising the following steps of:
step one, forming a fault detection circuit by the low-voltage direct-current power supply, the direct-current ammeter, the polarity converter and the two high-internal-resistance voltmeters, and connecting a high-voltage cable into the circuit to prepare for fault detection;
step two, regulating the voltage of the low-voltage direct-current power supply from zero voltage until the direct-current voltmeter reaches a preset value, and recording the readings of the two high-internal-resistance voltmeters;
step three, the low-voltage direct-current power supply voltage is returned to zero, and the output electrode of the polarity converter is changed;
step four, regulating the voltage of the low-voltage direct-current power supply from zero voltage until the direct-current voltmeter reaches the preset value in the step three, and recording the readings of the two high-internal-resistance voltmeters again;
step five, calculating the average value of the voltage values recorded twice by the two high internal resistance voltmeters in the step two and the step four;
and step six, calculating the distance between the high-resistance fault point of the high-voltage cable and the position of the low-voltage direct-current power supply.
2. High voltage cable fault detection device, including high voltage cable fault detector main part (1), its characterized in that: the high-voltage cable fault detector is characterized in that a mounting mechanism (2) is arranged at the bottom of the high-voltage cable fault detector main body (1), an adjusting mechanism (3) is arranged at the top end of the inner side of the mounting mechanism (2), the adjusting mechanism (3) is connected with the high-voltage cable fault detector main body (1), a supporting mechanism (4) is arranged on one side of the mounting mechanism (2), a transmission mechanism (5) is arranged on one side of the supporting mechanism (4), a stabilizing mechanism (6) is arranged on one side of the transmission mechanism (5), the transmission mechanism (5) is connected with the adjusting mechanism (3), and limiting mechanisms (7) are symmetrically arranged at two ends of the other side of the mounting mechanism (2).
3. The high-voltage cable fault detection device according to claim 2, wherein the supporting mechanism (4) comprises a fixed frame (41), the mounting hole is formed in the center of the top of the fixed frame (41), the mounting hole is rotationally provided with a first rotating shaft (42), a holding block (43) is fixedly arranged at the top end of the first rotating shaft (42), a screw (44) is fixedly arranged at the bottom end of the first rotating shaft (42), the bottom end of the screw (44) is rotationally matched with the bottom end of the inner wall of the fixed frame (41), a movable bar (45) is arranged on the surface of the screw (44) in a threaded manner, two ends of the movable bar (45) are respectively contacted with the centers of two sides of the inner wall of the fixed frame (41), a supporting bar (46) is rotationally arranged at the bottom end of one side of the movable bar (45), a connecting block (47) is fixedly arranged at one end of the supporting bar (46), through holes are symmetrically formed in two ends of one side of the connecting block (47), guide bars (48) are slidably provided with guide bars (48), first springs (49) are sleeved on the surface of the guide bars (48), one end of the guide bars (410) is fixedly provided with one end of the fixed bar (410), and the bottom of the movable bar (410).
4. A high-voltage cable fault detection device as claimed in claim 3, wherein a top plate (412) is fixedly arranged at the top end of one side of the movable bar (45), an inner rod (413) is rotatably arranged at the bottom of the top plate (412), a rotating block (414) is rotatably arranged at the top of the supporting rod (46), an outer rod (415) is fixedly arranged at the top of the rotating block (414), a limit groove is formed in the top end of the outer rod (415), a second spring (416) is fixedly arranged at the bottom of the limit groove, and the bottom end of the inner rod (413) is fixedly matched with one end of the second spring (416).
5. The high-voltage cable fault detection device according to claim 3, wherein a plurality of clamping holes (417) are formed in the surface of the first rotating shaft (42), a telescopic rod (418) is fixedly arranged at the top end of one side of the inner wall of the fixed frame (41), an intermediate block is arranged at the output end of the telescopic rod (418), a clamping rod (419) is fixedly arranged at one side of the intermediate block, and the clamping rod (419) is matched with the clamping holes (417) in a clamping mode.
6. A high voltage cable fault detection device as claimed in claim 3, characterized in that the adjusting mechanism (3) comprises a fixing plate (31), a chute is formed in the bottom of the fixing plate (31), a through hole is formed in the bottom of the chute, a sliding plate (32) is slidably arranged in the chute, a connecting rod (33) is rotatably arranged at the top of the sliding plate (32), a mounting plate (34) is rotatably arranged at one end of the connecting rod (33), second rotating shafts (35) are symmetrically and fixedly arranged at two sides of the mounting plate (34), the bottom of the high voltage cable fault detector main body (1) is fixedly matched with the top of the mounting plate (34), and racks (36) are fixedly arranged at the bottom of the sliding plate (32).
7. The high-voltage cable fault detection device according to claim 6, wherein the transmission mechanism (5) comprises a third rotating shaft (51), a fourth rotating shaft (52), a connecting shaft (53), two first straight gears (54) and bevel gears (55), wherein the two first straight gears (54) are meshed, one first straight gear (54) is sleeved on the first rotating shaft (42), the other first straight gear (54) and one bevel gear (55) are sleeved on the third rotating shaft (51), the two bevel gears (55) are meshed, the other bevel gear (55) is sleeved on the fourth rotating shaft (52), two belt pulleys (56) are arranged at one end of the fourth rotating shaft (52), the two belt pulleys (56) are in transmission fit through a conveyor belt, one belt pulley (56) is sleeved on one end of the fourth rotating shaft (52), the other belt pulley (56) is sleeved on the connecting shaft (53), one end of the connecting shaft (53) is sleeved with a second straight gear (57), and the second straight gear (57) is meshed with the rack (36).
8. The high-voltage cable fault detection device according to claim 7, wherein the limiting mechanism (7) comprises a mounting block (71), a transverse plate (72) is fixedly arranged on one side of the mounting block (71), a round hole is formed in the top of the transverse plate (72), a limiting rod (73) is slidably arranged in the round hole, two limiting holes (74) are formed in one side of the limiting rod (73), a jack is formed in one side of the transverse plate (72), and the same plug pin (75) is arranged in the jack and one of the limiting holes (74) in a clamping mode.
9. The high-voltage cable fault detection device according to claim 8, wherein the stabilizing mechanism (6) comprises a sleeve (61), the inner wall of the sleeve (61) is in running fit with the surface of the connecting shaft (53), connecting strips (62) are symmetrically and fixedly arranged at two ends of one side of the sleeve (61), a stabilizing plate (63) is fixedly arranged at one end of each connecting strip (62), and stabilizing blocks (64) are symmetrically and fixedly arranged at two ends of each stabilizing plate (63).
10. The high-voltage cable fault detection device according to claim 9, wherein the mounting mechanism (2) comprises a mounting frame (21), vertical rods (22) are fixedly arranged at bottom corners of the mounting frame (21), the second rotating shaft (35) is in running fit with one side of the inner wall of the mounting frame (21), fixing blocks (420) are symmetrically and fixedly arranged at the top and bottom ends of the fixing frame (41), four fixing blocks (420) are fixedly matched with one side of two vertical rods (22) through first bolts respectively, vertical bars (37) are symmetrically and fixedly arranged at two ends of the top of the fixing plate (31), top blocks (38) are fixedly arranged at the top ends of the vertical bars (37), the top of the top blocks (38) are fixedly matched with one end of the bottom of the mounting frame (21) through second bolts, the other sides of the mounting blocks (71) are fixedly matched with one end of the other two vertical rods (22) through third bolts respectively, and one side of the two fixing blocks (64) is fixedly matched with one side of the other two vertical rods (22) through fourth bolts respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310944439.9A CN116660597B (en) | 2023-07-31 | 2023-07-31 | High-voltage cable fault detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310944439.9A CN116660597B (en) | 2023-07-31 | 2023-07-31 | High-voltage cable fault detection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116660597A true CN116660597A (en) | 2023-08-29 |
| CN116660597B CN116660597B (en) | 2023-11-07 |
Family
ID=87712206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310944439.9A Active CN116660597B (en) | 2023-07-31 | 2023-07-31 | High-voltage cable fault detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116660597B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117471258A (en) * | 2023-11-16 | 2024-01-30 | 河北如电电气设备有限公司 | Power equipment fault detection device |
| CN117554587A (en) * | 2024-01-08 | 2024-02-13 | 湖南湘联电缆有限公司 | Power distribution network cable detection device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1527479A1 (en) * | 1987-12-24 | 1989-12-07 | Л.И.Снитко и Ю.Л.Снитко | All-purpose implement for measuring linear and angular values |
| CN101290339A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | High-voltage cable trouble point checking method and its device |
| CN103387194A (en) * | 2013-07-15 | 2013-11-13 | 浙江鼎力机械股份有限公司 | Aerial work platform capable of being used for slope ground |
| CN109701881A (en) * | 2018-11-16 | 2019-05-03 | 浙江来福谐波传动股份有限公司 | The detection and classification method of internal circular spline product in a kind of harmonic speed reducer |
| CN113756553A (en) * | 2021-09-05 | 2021-12-07 | 中建三局第一建设工程有限责任公司 | Movable scaffold |
| CN216813639U (en) * | 2021-11-03 | 2022-06-24 | 福建省鼎峰建设工程有限公司 | Building slope warning device for building monitoring |
| CN115078774A (en) * | 2022-07-11 | 2022-09-20 | 江西圣塔电缆科技有限公司 | High-voltage power cable fault detection device |
| CN218375429U (en) * | 2022-10-14 | 2023-01-24 | 百创建设有限公司 | Inclined supporting structure for mounting assembled wallboard for constructional engineering |
-
2023
- 2023-07-31 CN CN202310944439.9A patent/CN116660597B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1527479A1 (en) * | 1987-12-24 | 1989-12-07 | Л.И.Снитко и Ю.Л.Снитко | All-purpose implement for measuring linear and angular values |
| CN101290339A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | High-voltage cable trouble point checking method and its device |
| CN103387194A (en) * | 2013-07-15 | 2013-11-13 | 浙江鼎力机械股份有限公司 | Aerial work platform capable of being used for slope ground |
| CN109701881A (en) * | 2018-11-16 | 2019-05-03 | 浙江来福谐波传动股份有限公司 | The detection and classification method of internal circular spline product in a kind of harmonic speed reducer |
| CN113756553A (en) * | 2021-09-05 | 2021-12-07 | 中建三局第一建设工程有限责任公司 | Movable scaffold |
| CN216813639U (en) * | 2021-11-03 | 2022-06-24 | 福建省鼎峰建设工程有限公司 | Building slope warning device for building monitoring |
| CN115078774A (en) * | 2022-07-11 | 2022-09-20 | 江西圣塔电缆科技有限公司 | High-voltage power cable fault detection device |
| CN218375429U (en) * | 2022-10-14 | 2023-01-24 | 百创建设有限公司 | Inclined supporting structure for mounting assembled wallboard for constructional engineering |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117471258A (en) * | 2023-11-16 | 2024-01-30 | 河北如电电气设备有限公司 | Power equipment fault detection device |
| CN117471258B (en) * | 2023-11-16 | 2024-05-28 | 河北如电电气设备有限公司 | Power equipment fault detection device |
| CN117554587A (en) * | 2024-01-08 | 2024-02-13 | 湖南湘联电缆有限公司 | Power distribution network cable detection device |
| CN117554587B (en) * | 2024-01-08 | 2024-04-16 | 湖南湘联电缆有限公司 | Power distribution network cable detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116660597B (en) | 2023-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116660597B (en) | High-voltage cable fault detection method and device | |
| CN107104390B (en) | A kind of live detection and clean integrated robot | |
| CN107826732B (en) | Device for improving experimental capacity of power capacitor | |
| CN208432578U (en) | A kind of swivel mount convenient for petroleum pipeline detection | |
| CN116184116A (en) | Detection device for nondestructive detection of power cable | |
| CN110125063A (en) | A kind of transmission line of electricity clearing apparatus | |
| CN110130323B (en) | Screw pile construction equipment and construction method thereof | |
| CN218099511U (en) | Battery monitoring equipment based on Internet of things | |
| CN217561558U (en) | Novel climbing-free test wire clamp | |
| CN113092154B (en) | Rotary experiment table with self-locking performance | |
| CN206788326U (en) | A kind of rotor test machine | |
| CN217766549U (en) | Probe for testing electrical and electronic grounding resistance | |
| CN207124230U (en) | A kind of series connection apparatus for lithium-ion-power cell | |
| CN219496560U (en) | Insulation detection device for power transmission equipment | |
| CN218445709U (en) | Safe type insulation resistance tester | |
| CN219084881U (en) | Multi-angle crack detection device for hydraulic engineering pipeline detection | |
| CN212182963U (en) | Insulation protection device for high-altitude live-line work | |
| CN220380674U (en) | Packing tightness detects fixture | |
| CN220797631U (en) | Suspension device for high-voltage line inspection | |
| CN220289759U (en) | Auxiliary discharge device for high-voltage test | |
| CN215263816U (en) | Insulation resistance tester convenient to fixed work piece | |
| CN219417764U (en) | Power supply protection device for wide-area electromagnetic exploration equipment | |
| CN215218956U (en) | Clamp-on ammeter convenient to look for photovoltaic string faults | |
| CN217620610U (en) | A electric power inspection robot for narrow and small space | |
| CN220086804U (en) | National power grid line monitoring and maintaining device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231011 Address after: No. 278 Hongqi Road, Nankai District, Tianjin, 300110 Applicant after: State Grid Tianjin electric power company Chengxi power supply branch Applicant after: STATE GRID CORPORATION OF CHINA Applicant after: STATE GRID TIANJIN ELECTRIC POWER Co. Applicant after: TIANJIN ELECTRIC POWER ENGINEERING SUPERVISION Co.,Ltd. Applicant after: Tianjin Chengxi Guangyuan Power Engineering Co.,Ltd. Applicant after: Tianjin Tianyuan Electric Power Engineering Co.,Ltd. Applicant after: Tianjin Ninghe District Ningdong Shengyuan Power Engineering Co.,Ltd. Address before: No.153 Xiangwei Road, Hebei District, Tianjin 300143 Applicant before: TIANJIN ELECTRIC POWER ENGINEERING SUPERVISION Co.,Ltd. Applicant before: Tianjin Chengxi Guangyuan Power Engineering Co.,Ltd. Applicant before: Tianjin Tianyuan Electric Power Engineering Co.,Ltd. Applicant before: Tianjin Ninghe District Ningdong Shengyuan Power Engineering Co.,Ltd. Applicant before: STATE GRID TIANJIN ELECTRIC POWER Co. Applicant before: STATE GRID CORPORATION OF CHINA |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231130 Address after: No. 278 Hongqi Road, Nankai District, Tianjin, 300110 Patentee after: State Grid Tianjin electric power company Chengxi power supply branch Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: STATE GRID TIANJIN ELECTRIC POWER Co. Address before: No. 278 Hongqi Road, Nankai District, Tianjin, 300110 Patentee before: State Grid Tianjin electric power company Chengxi power supply branch Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: STATE GRID TIANJIN ELECTRIC POWER Co. Patentee before: TIANJIN ELECTRIC POWER ENGINEERING SUPERVISION Co.,Ltd. Patentee before: Tianjin Chengxi Guangyuan Power Engineering Co.,Ltd. Patentee before: Tianjin Tianyuan Electric Power Engineering Co.,Ltd. Patentee before: Tianjin Ninghe District Ningdong Shengyuan Power Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |