CN106291248B - Power cable fault detection equipment - Google Patents
Power cable fault detection equipment Download PDFInfo
- Publication number
- CN106291248B CN106291248B CN201610755387.0A CN201610755387A CN106291248B CN 106291248 B CN106291248 B CN 106291248B CN 201610755387 A CN201610755387 A CN 201610755387A CN 106291248 B CN106291248 B CN 106291248B
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- China
- Prior art keywords
- clamping groove
- fault detection
- base
- power cable
- rotating shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
Abstract
The invention discloses a power cable fault detection device which comprises a base, wherein a clamping groove is formed in the upper part of the base, a clamping plate matched with the clamping groove is installed in the clamping groove, a fixed seat is arranged on one side of the upper surface of the clamping plate, bearings are embedded in the inner surface of the upper part of the fixed seat, a rotating shaft is installed between the bearings on the upper part of the fixed seat, a rotating connecting block is arranged in the middle of the rotating shaft, and a long rod support is connected to one side of the rotating connecting block; according to the invention, the base is arranged on the carrier by adopting the fastening bolt, the clamping plate is arranged in the clamping groove, the occupied space is reduced, the disassembly is convenient, the use is flexible, the voltage transformer and the Hall current sensor jointly measure the power cable, the fault point is judged according to the voltage change condition and the magnetic field change condition, and the combination of the damping spring and the damper ensures that the power cable is tightly attached to the rolling electric brush without generating rigid impact force, so that the safety and the fault detection efficiency are improved.
Description
Technical Field
the invention relates to the technical field of power detection equipment, in particular to power cable fault detection equipment.
Background
Overhead line transmission is the primary means of transmission of electricity employed since the development of the power industry. However, the overhead line is exposed to the atmospheric environment, is directly influenced by meteorological conditions, and has certain mechanical strength to adapt to the influences of local temperature change, strong storm attack, icing load, flood and the like which may be encountered when crossing rivers; meanwhile, lightning attacks, rain, wet fog, natural and industrial pollution and the like can also destroy or reduce the insulation strength of the overhead line and even cause power failure accidents. The existing fault detection method mainly adopts an injection signal detection method, and the method mainly depends on manual line patrol, requires a worker to patrol along a route, finds a fault point through naked eye observation, causes life hidden danger to the worker, and is slow in positioning speed.
Disclosure of Invention
The present invention is directed to a power cable fault detection apparatus to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a power cable fault detection equipment, includes the base, the upper portion of base is provided with the draw-in groove, install in the draw-in groove with draw-in groove assorted cardboard, upper surface one side of cardboard is provided with the fixing base, the upper portion internal surface of fixing base has all inlayed the bearing, install the axis of rotation between the bearing on fixing base upper portion, the middle part of axis of rotation is provided with the rotation connecting block, one side of rotation connecting block is connected with the stock support, the top of stock support is connected with the fault detection board, the middle part both sides of fault detection board all are provided with the curb plate, the equipment has the roll brush between the curb plate, hall current sensor is installed to upper surface one side of fault detection board, voltage transformer.
Preferably, a hydraulic cylinder is vertically installed in the middle of one side of the upper surface of the clamping plate, a piston rod is arranged in the middle of the top end of the hydraulic cylinder, and a lower connecting piece is arranged at the top end of the piston rod.
preferably, the bottom end of the lower part of the long rod support is provided with a connecting rod, the top end of the connecting rod is sleeved with a rotating shaft seat, and the bottom end of the rotating shaft seat is provided with an upper connecting sheet.
Preferably, a damping spring is connected between the upper connecting sheet and the lower connecting sheet, and a damper is arranged between the middle part of the upper connecting sheet and the middle part of the lower connecting sheet.
Preferably, four fastening bolts are uniformly arranged around the base, and two shock pads are embedded in the middle of the base.
Preferably, one end of the clamping groove is provided with a limiting plate, and two sides of the other end of the clamping groove are both connected with positioning bolts through threads.
Preferably, a PLC controller is installed in the middle of the upper surface of the clamping plate, and the PLC controller is connected with the Hall current sensor and the voltage transformer through circuits respectively.
compared with the prior art, the invention has the beneficial effects that: adopt fastening bolt to install the base on the carrier, the cardboard is installed in the draw-in groove, reduce occupation space, convenient dismantlement, it is nimble to use, the direction of pneumatic cylinder control stock support and the angle between stock support and the horizontal plane, make the rolling brush roll along power cable, voltage transformer and hall current sensor measure power cable jointly, according to voltage variation condition and magnetic field variation condition, judge the fault point, the combination of damping spring and attenuator, make closely laminating and can not produce the rigidity impact force between power cable and the rolling brush, security and fault detection efficiency are improved.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a right side view of the present invention;
Fig. 5 is a top view of the present invention.
In the figure: 1. a base; 2. a card slot; 3. clamping a plate; 4. a fixed seat; 5. a bearing; 6. a rotating shaft; 7. rotating the connecting block; 8. a long rod support; 9. a fault detection board; 10. a side plate; 11. a rolling brush; 12. a Hall current sensor; 13. a voltage transformer; 14. a hydraulic cylinder; 15. a piston rod; 16. a lower connecting sheet; 17. a connecting rod; 18. a rotating shaft seat; 19. an upper connecting sheet; 20. a damping spring; 21. a damper; 22. fastening a bolt; 23. a shock pad; 24. a limiting plate; 25. positioning the bolt; 26. a PLC controller.
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.
Referring to fig. 1-5, the present invention provides a technical solution: the detection device comprises a base 1, a clamping groove 2 is arranged on the upper portion of the base 1, a clamping plate 3 matched with the clamping groove 2 is installed in the clamping groove 2, the clamping groove 2 is in sliding fit with the clamping plate 3, a fixed seat 4 is arranged on one side of the upper surface of the clamping plate 3, bearings 5 are embedded in the inner surface of the upper portion of the fixed seat 4, a rotating shaft 6 is installed between the bearings 5 on the upper portion of the fixed seat 4, a rotating connecting block 7 is arranged in the middle of the rotating shaft 6, a long rod support 8 is connected to one side of the rotating connecting block 7, the long rod support 8 rotates around the axis of the bearings 5, a fault detection plate 9 is connected to the top end of the long rod support 8, side plates 10 are arranged on two sides of the middle of the fault detection plate 9, a rolling electric brush 11 is assembled between the side plates 10, an, a voltage transformer 13 is arranged on the other side of the upper surface of the fault detection plate 9, a hydraulic cylinder 14 is vertically arranged in the middle of one side of the upper surface of the clamping plate 3, a piston rod 15 is arranged in the middle of the top end of the hydraulic cylinder 14, a lower connecting piece 16 is arranged at the top end of the piston rod 15, a connecting rod 17 is arranged at the bottom end of the lower part of the long rod support 8, a rotating shaft seat 18 is sleeved at the top end of the connecting rod 17, an upper connecting piece 19 is arranged at the bottom end of the rotating shaft seat 18, a damping spring 20 is connected between the upper connecting piece 19 and the lower connecting piece 16, the damping springs 20 with different rigidity can be replaced according to different road sections, a damper 21 is arranged between the middle part of the upper connecting piece 19 and the middle part of the lower connecting piece 16, dampers 21 with different types can be replaced according to, one end of draw-in groove 2 is provided with limiting plate 24, there is positioning bolt 25 all through threaded connection draw-in groove 2's other end both sides, the upper surface mid-mounting of cardboard 3 has PLC controller 26, PLC controller 26 and hall current sensor 12, pass through circuit connection between the voltage transformer 13 respectively, the magnetic field change signal that hall current sensor 12 detected passes through the circuit and carries PLC controller 26, the voltage change signal that voltage transformer 13 detected passes through the circuit and carries PLC controller 26.
In the specific implementation of the invention, the base 1 is placed in the middle of the top end of a mobile carrier (such as an automobile) and fixedly connected through the fastening bolt 22, disassembly is not needed at ordinary times, the occupied space is small, and when fault detection needs to be carried out on a power cable, the clamping plate 3 is inserted into the clamping groove 2, after one end of the clamping plate 3 is contacted with the limiting plate 24, the positioning bolt 25 is rotated, the positioning bolt 25 fixes the clamping plate 3 in the clamping groove 2, the hydraulic cylinder 14 is started, the hydraulic cylinder 14 pushes the piston rod 15 to move along the vertical direction, the piston rod 15 changes the height of the lower connecting sheet 16, the lower connecting sheet 16 is connected with the upper connecting sheet 19 through the damper 21 and the damping spring 20, the upper connecting sheet 19 controls the long rod support 8 through the rotating shaft seat 18 and the connecting rod 17, the direction of the long rod support 8 and the angle between the long rod support 8, the rolling electric brush 11 installed on the fault detection plate 9 rolls along an electric power cable, the voltage transformer 13 and the Hall current sensor 12 jointly measure the electric power cable, the voltage change condition detected by the voltage transformer 13 is transmitted to the PLC 26 through a circuit, the magnetic field change condition detected by the Hall current sensor 12 is transmitted to the PLC 26 through a circuit, a fault point is judged according to the voltage change condition and the magnetic field change condition, and the combination of the damping spring 20 and the damper 21 ensures that the electric power cable and the rolling electric brush 11 are tightly attached without generating rigid impact force, so that the safety is improved, the derailment condition between the rolling electric brush 11 and the electric power cable is reduced, the damage to the electric power cable is avoided, and the fault detection efficiency is improved.
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A power cable fault detection device, characterized in that: the detection device comprises a base (1), wherein a clamping groove (2) is formed in the upper portion of the base (1), a clamping plate (3) matched with the clamping groove (2) is installed in the clamping groove (2), a fixing seat (4) is arranged on one side of the upper surface of the clamping plate (3), bearings (5) are embedded in the inner surface of the upper portion of the fixing seat (4), a rotating shaft (6) is installed between the bearings (5) on the upper portion of the fixing seat (4), a rotating connecting block (7) is arranged in the middle of the rotating shaft (6), a long rod support (8) is connected to one side of the rotating connecting block (7), a fault detection plate (9) is connected to the top end of the long rod support (8), side plates (10) are arranged on two sides of the middle of the fault detection plate (9), a rolling electric brush (11) is assembled between the side plates (10), and, a voltage transformer (13) is installed on the other side of the upper surface of the fault detection plate (9);
A hydraulic cylinder (14) is vertically arranged in the middle of one side of the upper surface of the clamping plate (3), a piston rod (15) is arranged in the middle of the top end of the hydraulic cylinder (14), and a lower connecting piece (16) is arranged at the top end of the piston rod (15);
A connecting rod (17) is arranged at the bottom end of the lower part of the long rod support (8), a rotating shaft seat (18) is sleeved at the top end of the connecting rod (17), and an upper connecting sheet (19) is arranged at the bottom end of the rotating shaft seat (18);
A damping spring (20) is connected between the upper connecting piece (19) and the lower connecting piece (16), and a damper (21) is arranged between the middle part of the upper connecting piece (19) and the middle part of the lower connecting piece (16);
Four fastening bolts (22) are uniformly arranged on the periphery of the base (1), and two shock absorption pads (23) are embedded in the middle of the base (1);
A limiting plate (24) is arranged at one end of the clamping groove (2), and two sides of the other end of the clamping groove (2) are connected with positioning bolts (25) through threads;
The middle part of the upper surface of the clamping plate (3) is provided with a PLC (programmable logic controller) (26), and the PLC (26) is respectively connected with the Hall current sensor (12) and the voltage transformer (13) through circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755387.0A CN106291248B (en) | 2016-08-30 | 2016-08-30 | Power cable fault detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755387.0A CN106291248B (en) | 2016-08-30 | 2016-08-30 | Power cable fault detection equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106291248A CN106291248A (en) | 2017-01-04 |
| CN106291248B true CN106291248B (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610755387.0A Active CN106291248B (en) | 2016-08-30 | 2016-08-30 | Power cable fault detection equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN106291248B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179480A (en) * | 2017-06-21 | 2017-09-19 | 国网山东省电力公司烟台供电公司 | A kind of electric power cable fault test set |
| CN107727518B (en) * | 2017-08-23 | 2020-03-20 | 安徽凌宇电缆科技有限公司 | Cable performance testing device and cable performance testing method applying same |
| DE102017122684A1 (en) * | 2017-09-29 | 2019-04-04 | Lisa Dräxlmaier GmbH | TEST APPARATUS AND TEST METHOD FOR CHECKING A DATA CABLE FOR A POWER VEHICLE THROUGH CONSTANT CURRENT SOURCE |
| CN108663551B (en) * | 2018-07-06 | 2020-04-24 | 国网河北省电力有限公司石家庄供电分公司 | Telescoping device for electric power test equipment |
| CN114167312B (en) * | 2022-02-11 | 2022-04-26 | 北京航天和兴科技股份有限公司 | Cable harness fault point fixed point detection equipment |
| CN117686120B (en) * | 2024-02-02 | 2024-04-26 | 赣州市金电电子设备有限公司 | Current online measurement device and method for preventing overheat of power cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191315A (en) * | 1997-12-04 | 1998-08-26 | 中国人民解放军第二炮兵工程学院技术开发中心 | High-voltage overhead line on-line failure distance finding method and instrument installation |
| CN201673234U (en) * | 2010-05-26 | 2010-12-15 | 西安兴汇电力科技有限公司 | Distribution line single-phase earth fault inspection device |
| CN203310955U (en) * | 2013-05-28 | 2013-11-27 | 北京国电亿龙科技有限公司 | Intelligent line monitoring terminal |
| CN105021492A (en) * | 2015-07-27 | 2015-11-04 | 华侨大学 | Apparatus for testing cable heating and combustion characteristics under effect of simulating fault arc |
-
2016
- 2016-08-30 CN CN201610755387.0A patent/CN106291248B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1191315A (en) * | 1997-12-04 | 1998-08-26 | 中国人民解放军第二炮兵工程学院技术开发中心 | High-voltage overhead line on-line failure distance finding method and instrument installation |
| CN201673234U (en) * | 2010-05-26 | 2010-12-15 | 西安兴汇电力科技有限公司 | Distribution line single-phase earth fault inspection device |
| CN203310955U (en) * | 2013-05-28 | 2013-11-27 | 北京国电亿龙科技有限公司 | Intelligent line monitoring terminal |
| CN105021492A (en) * | 2015-07-27 | 2015-11-04 | 华侨大学 | Apparatus for testing cable heating and combustion characteristics under effect of simulating fault arc |
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| CN106291248A (en) | 2017-01-04 |
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