CN116660687B - Diagnostic device for analyzing power transmission line faults - Google Patents
Diagnostic device for analyzing power transmission line faults Download PDFInfo
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- CN116660687B CN116660687B CN202310935901.9A CN202310935901A CN116660687B CN 116660687 B CN116660687 B CN 116660687B CN 202310935901 A CN202310935901 A CN 202310935901A CN 116660687 B CN116660687 B CN 116660687B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 42
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
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- 239000004065 semiconductor Substances 0.000 claims description 11
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- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
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- 238000005057 refrigeration Methods 0.000 claims 5
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- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 230000000630 rising effect Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
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Classifications
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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
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/146—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations arrangements for moving thermometers to or from a measuring position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
-
- 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
- G01R31/54—Testing for continuity
-
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Locating Faults (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention belongs to the technical field of line fault detection, and particularly relates to a diagnostic device for analyzing a power transmission line fault. Through the two working modes, the invention can diagnose the conductor breaking point of the low-voltage cable, realize accurate positioning, improve the convenience of line maintenance, diagnose the abnormal temperature rising point of the cable in daily inspection, diagnose the aging, breaking and breakage point of the insulation sheath of the cable, and facilitate the electric power maintainer to eliminate the potential safety hazard of the cable in advance.
Description
Technical Field
The invention belongs to the technical field of line fault detection, and particularly relates to a diagnosis device for analyzing power transmission line faults.
Background
The transmission line is an important electric power facility for ensuring normal life and production of residents, and is generally divided into a high-voltage line, a medium-voltage line and a low-voltage line, and the overhaul efficiency of electric power overhaulers on the fault line can be improved by timely diagnosing and positioning the fault of the transmission line.
At present, in a high-voltage transmission line, a distributed traveling wave diagnostic device is often used, so that fault points in the high-voltage transmission line can be rapidly positioned, an maintainer can conveniently and accurately position the fault point range, and the maintenance convenience is improved, for example, a distributed fault diagnostic device for the transmission line is disclosed in a patent publication No. CN 215575452U;
however, the distributed traveling wave diagnostic device is generally suitable for a line of 35kv and above, and for a low-voltage line of 220v, an electrician generally performs fault point positioning by externally connecting a detecting instrument in each line section, and when a conductor in the line is pulled to break due to external wind force and the like, and the cable insulation sheath is not broken due to the elastic expansion performance of the cable insulation sheath, the fault point of the conductor cannot be found through appearance, and the line part of the fault point can be detected through the externally connecting instrument, however, a great amount of time is required for checking and the fault point of the conductor cannot be accurately positioned, so that after the fault point is detected, line maintenance is generally performed by adopting a mode of replacing the whole section of the cable at the fault point, thereby increasing the maintenance cost of the line, and meanwhile, if the aged position of the insulation sheath of the low-voltage line is not timely found by sunlight and the like, damage such as high-temperature burning, conductor exposure and the like easily occurs to the aged position of the insulation sheath, and the safety of the power transmission line is affected.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a diagnostic apparatus for analyzing a power transmission line fault.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a diagnostic device for analyzing faults of a transmission line comprises a cable, an upper semi-ring sleeve and a lower semi-ring sleeve, wherein the upper semi-ring sleeve and the lower semi-ring sleeve are mutually hinged, the upper semi-ring sleeve and the lower semi-ring sleeve are sleeved outside the cable, the inner wall of the upper semi-ring sleeve is fixedly connected with an upper insulating seat, the inner wall of the lower semi-ring sleeve is fixedly connected with a lower insulating seat, the upper insulating seat and the lower insulating seat are sleeved outside the cable, the ends of the upper insulating seat and the lower insulating seat are in sealing propped arrangement, the inner walls of the upper insulating seat and the lower insulating seat are provided with semi-annular grooves, the interiors of the two semi-ring grooves are fixedly provided with wire groups, the ends of the two wire groups are in contact arrangement, the two wire groups enclose a spiral coil, the inner wall of the lower insulating seat is provided with a magnetic force triggering mechanism, one end of the top of the upper insulating seat is provided with a U-shaped groove, the inner wall of the U-shaped groove is fixedly connected with a lower insulating seat, the upper insulating seat is provided with a driving component, the upper insulating seat is connected with a transmission mechanism through the driving component, the two ends of the turnover seat are provided with elastic contact blocks, the two end faces are fixedly connected with the two elastic contact blocks, the two elastic contact blocks are fixedly connected with the inner side blocks of the two insulation blocks, the two contact blocks are fixedly connected with the inner side blocks, the two inner side blocks are fixedly connected with the inner side blocks, and fixedly connected with the two inner blocks are fixedly and connected with the upper side blocks and have a pressing blocks, the upper semi-ring sleeve and the lower semi-ring sleeve are fixedly connected with an air blowing mechanism fixedly communicated with an air supply mechanism, a storage battery assembly and a controller are fixedly arranged on the inner wall of the lower semi-ring sleeve, and a wireless communication transceiver in communication connection with the controller is fixedly arranged at the lower end of the lower semi-ring sleeve.
Preferably, the magnetic force trigger mechanism is including setting up the mounting groove of insulating seat inner wall down, the interior bottom fixed mounting of mounting groove has the elastic sleeve, the top fixedly connected with of elastic sleeve places the board, and places the top of board and place the iron ball, the notch fixed mounting of mounting groove has the baffle ring, the inside of elastic sleeve is equipped with first pressure switch, and first pressure switch is located the tank bottom fixed setting of mounting groove, first pressure switch and controller electric connection.
Preferably, the hardening conduction mechanism comprises a trigger switch fixedly arranged at the bottom of two grooves, two end parts of the trigger blocks are fixedly connected with a trigger rod, two trigger blocks and groove walls of the grooves on the same side are fixedly connected with rubber sleeves together, a round cavity is formed in the upper insulating seat, the output end of the driving assembly is rotationally connected with the cavity wall of the round cavity, the output end of the driving assembly is fixedly connected with an insulating plate, two ends of the side wall of the insulating plate are fixedly connected with conducting rods, two conducting blocks matched with the conducting rods are fixedly connected to two sides of the cavity wall of the round cavity, and the trigger switch is electrically connected with the controller through the two conducting rods and the two conducting blocks.
Preferably, the temperature sensing detection mechanism comprises an arc groove which is formed in the upper insulating seat and the lower insulating seat, communication holes are formed in two opposite ends of the arc groove jointly, the arc notch of the arc groove is fixedly connected with a temperature conducting insulating film, the arc groove is fixedly provided with a group of thermistors, the side walls of the upper insulating seat and the lower insulating seat are fixedly provided with electromagnetic switches which are electrically connected with a group of thermistors on the same side, and the two electromagnetic switches are electrically connected with the controller.
Preferably, the air supply mechanism comprises an air pump fixedly mounted at the top of the upper insulating seat, the output end of the air pump is fixedly connected with a left exhaust pipe, the left exhaust pipe is fixedly communicated with the arc-shaped groove on the same side, a normally closed electromagnetic valve is arranged in the left exhaust pipe, and the air pump and the normally closed electromagnetic valve are electrically connected with the controller.
Preferably, the air pressure trigger assembly is fixedly inserted into the hollow column on the side wall of the lower insulating seat, a piston is slidably arranged in the hollow column, a spring is fixedly connected with the inner wall of the hollow column together, a vent hole is formed in the end portion of the hollow column together with the groove wall of the same-side arc groove, a second pressure switch is fixedly connected with the inner wall of one side, away from the vent hole, of the hollow column, and the second pressure switch is electrically connected with the controller.
Preferably, the air blowing mechanism comprises an air cavity arranged in the upper insulating seat, the air cavity is fixedly communicated with a right exhaust pipe together with the output end of the air pump, a normally open electromagnetic valve connected with the normally closed electromagnetic valve in series is arranged in the right exhaust pipe, the inner walls of the upper semi-ring sleeve and the lower semi-ring sleeve are fixedly connected with semi-arc covers, two opposite ends of the two semi-arc covers are sealed and offset, the air cavity is fixedly connected with a communicating pipe together with the same-side semi-arc cover, a plurality of air injection holes are formed in the inner wall of the semi-arc cover, a group of semiconductor refrigerating sheets are fixedly inserted into the side walls of the upper semi-ring sleeve and the lower semi-ring sleeve, and the refrigerating ends of the semiconductor refrigerating sheets are arranged inside the same-side semi-arc cover.
Preferably, connecting rods are fixedly installed on two sides of two ends of the lower semi-ring sleeve, arc-shaped hollow blocks are fixedly connected to the lower ends of the two connecting rods, and a plurality of steel balls are filled in the two arc-shaped hollow blocks.
Preferably, an electric heater is fixedly arranged in the air cavity, and the electric heater is electrically connected with the controller.
Compared with the prior art, the diagnosis device for analyzing the faults of the power transmission line has the advantages that:
1. through the mutual cooperation of last semi-ring cover, lower semi-ring cover, last insulating seat, lower insulating seat, semi-ring groove, wire group and magnetic force trigger mechanism that set up, through the spiral coil that wire group constitutes is established to the transmission line outside cover at the circuit breaking, through wire group circular telegram, can make the transmission line conductor produce the magnetic field, utilize the conductor disconnection department magnetic field weakening automatic triggering warning, can accurate diagnosis location conductor fracture department, improve the convenience and the accuracy of low tension transmission line conductor fracture department location, the transmission line of being convenient for the electric power workman maintenance damage need not to change whole fault line.
2. Through the mutually supporting of the U-shaped groove that sets up, turn over board, drive assembly, elasticity flexible subassembly and walking piece, can make whole diagnostic device walk along transmission line, ensure the comprehensiveness of transmission line diagnosis coverage of whole paragraph, and through the mutually supporting of the recess that sets up, touch briquetting and hardening conduction mechanism, can be based on the ageing characteristic of hardening of cable insulation sheath, can detect cable insulation sheath ageing at the in-process of walking in step to can do benefit to the potential safety hazard that causes because of insulation sheath ageing in advance.
3. Through the temperature sensing trigger mechanism that sets up, can carry out the detection of transmission line abnormal temperature rising point under the state of transmission line circular telegram in daily inspection process to can assist the detection that improves cable insulation sheath ageing point, and can detect the cable conductor and lead to abnormal temperature rising's position because of reasons such as corruption.
4. Through the structure that mutually supports of air feed mechanism and atmospheric pressure trigger mechanism that sets up, can utilize temperature sensing to detect, in the walking in-process, break the department to insulating crust and carry out synchronous test to can further improve the detection sufficiency to insulating crust damage, the air-blowing mechanism that the cooperation set up simultaneously can reduce outside sunshine and shine the influence of temperature to the temperature sensing detection accuracy, and air-blowing mechanism, can clear away the dirty on the cable crust, avoid the walking vibration to the influence of magnetic force trigger structural stability because of crust impurity leads to as far as possible.
Drawings
Fig. 1 is a schematic structural diagram of a diagnostic device for analyzing a power transmission line fault according to the present invention;
fig. 2 is a schematic top view of an upper insulating base of a diagnostic device for analyzing a power transmission line fault according to the present invention;
fig. 3 is a schematic diagram of a connection structure between a wire set and a lower insulating base of a diagnostic device for analyzing a power transmission line fault;
fig. 4 is a schematic structural diagram of a magnetic triggering mechanism of a diagnostic device for analyzing a power transmission line fault provided by the invention;
fig. 5 is a schematic diagram of a connection structure of an upper half-ring sleeve and a lower half-ring sleeve of a diagnostic device for analyzing a power transmission line fault;
fig. 6 is a schematic top view of a traveling block of a diagnostic device for analyzing a power transmission line fault according to the present invention;
fig. 7 is a schematic structural diagram of a hardening conduction mechanism of a diagnostic device for analyzing a power transmission line fault according to the present invention;
FIG. 8 is a schematic diagram of the temperature sensing mechanism and the air pressure triggering component of the diagnostic device for analyzing the faults of the power transmission line;
fig. 9 is a schematic top view of a gas supply mechanism of a diagnostic device for analyzing a power transmission line fault according to the present invention;
fig. 10 is a schematic diagram of an internal structure of an air cavity of a diagnostic device for analyzing a power transmission line fault provided by the present invention;
FIG. 11 is a schematic diagram of the connection structure of the lower half-ring sleeve with the battery assembly and the controller of the diagnostic device for analyzing power transmission line faults;
fig. 12 is a schematic diagram of a contact structure of two conductor sets of a diagnostic device for analyzing a transmission line fault provided by the present invention;
fig. 13 is a schematic diagram of the internal structure of an arc-shaped hollow block of a diagnostic device for analyzing a transmission line fault.
In the figure: 1 cable, 2 upper semi-ring sleeve, 3 lower semi-ring sleeve, 4 upper insulating seat, 5 lower insulating seat, 6 semi-ring groove, 7 wire group, 8 magnetic force trigger mechanism, 81 installation groove, 82 elastic sleeve, 83 placing plate, 84 iron ball, 85 baffle ring, 86 first pressure switch, 9U-shaped groove, 10 turning plate, 11 driving component, 12 elastic telescopic component, 13 walking block, 14 groove, 15 contact block, 16 hardening conduction mechanism, 161 trigger switch, 162 contact rod, 163 rubber sleeve, 164 round cavity, 165 insulating plate, 166 conducting rod, 167 conducting block, 17 temperature sensing detection mechanism, 171 arc groove, 15 contact block 172 communication holes, 173 temperature-conducting insulating films, 174 thermistors, 175 electromagnetic switches, 18 air supply mechanisms, 181 air pumps, 182 left exhaust pipes, 183 normally closed electromagnetic valves, 19 air pressure trigger assemblies, 191 hollow columns, 192 pistons, 193 springs, 194 vent holes, 195 second pressure switches, 20 air blowing mechanisms, 201 air chambers, 202 right exhaust pipes, 203 normally open electromagnetic valves, 204 semi-arc-shaped covers, 205 communication pipes, 206 air injection holes, 207 semiconductor refrigerating sheets, 21 storage battery assemblies, 22 controllers, 23 wireless communication transceivers, 24 connecting rods, 25 arc-shaped hollow blocks, 26 steel balls and 27 electric heaters.
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.
As shown in fig. 1-13, a diagnostic device for analyzing a fault of a power transmission line comprises a cable 1, an upper semi-ring sleeve 2 and a lower semi-ring sleeve 3, wherein the upper semi-ring sleeve 2 and the lower semi-ring sleeve 3 are hinged to each other, the upper semi-ring sleeve 2 and the lower semi-ring sleeve 3 are sleeved outside the cable 1, an upper insulating seat 4 is fixedly connected to the inner wall of the upper semi-ring sleeve 2, a lower insulating seat 5 is fixedly connected to the inner wall of the lower semi-ring sleeve 3, the upper insulating seat 4 and the lower insulating seat 5 are sleeved outside the cable 1, the ends of the upper insulating seat 4 and the lower insulating seat 5 are in sealing and abutting arrangement, a storage battery assembly 21 and a controller 22 are fixedly arranged on the inner wall of the lower semi-ring sleeve 3, a wireless communication transceiver 23 in communication connection with the controller 22 is fixedly arranged at the lower end of the lower semi-ring sleeve 3, wherein the controller 22 can send diagnostic information to a handheld terminal (not shown in the figure) through the wireless communication transceiver 23, the wireless communication transceiver 23 can receive control information sent by the handheld terminal, which is the prior art, so the battery assembly 21 is not described herein, and can be charged and replaced by an external charging wire, the two sides of the two ends of the lower semi-ring sleeve 3 are fixedly provided with connecting rods 24, the lower ends of the two connecting rods 24 are fixedly connected with arc hollow blocks 25, the interiors of the two arc hollow blocks 25 are filled with a plurality of steel balls 26, the stability of the lower semi-ring sleeve 3 and the upper semi-ring sleeve 2 can be improved, the rotation is not easy, the walking stability is improved, and in the walking process, if wind current is encountered, the inertia collision action of the steel balls 26 is utilized when the cable 1 swings integrally, a certain vibration-proof effect can be achieved, the inner walls of the upper insulating seat 4 and the lower insulating seat 5 are respectively provided with a ball contacted with the cable 1, so that friction force between the whole upper insulating seat 4 and the whole lower insulating seat 5 and the cable 1 is reduced, and a semi-annular friction pad is arranged at the end part of the lower insulating seat 5, so that certain anti-slip performance can be kept between the lower insulating seat 5 and the cable 1, and the lower insulating seat 5 and the upper insulating seat 4 are prevented from sliding on the cable 1 at will.
The semi-annular groove 6 has all been seted up to the inner wall of last insulating seat 4 and lower insulating seat 5, and the inside of two semi-annular grooves 6 is all fixed and is equipped with wire group 7, the tip of two wire groups 7 is the contact setting, and two wire groups 7 enclose and close and form a helical coil, magnetic force trigger mechanism 8 is installed to the inner wall of lower insulating seat 5, magnetic force trigger mechanism 8 is including the mounting groove 81 of opening in the inner wall of lower insulating seat 5, the inner bottom fixed mounting of mounting groove 81 has elastic sleeve 82, elastic sleeve 82's top fixedly connected with places board 83, and place the top of board 83 and place iron ball 84, the notch fixed mounting of mounting groove 81 has baffle ring 85, elastic sleeve 82's inside is equipped with first pressure switch 86, and first pressure switch 86 is located the tank bottom fixed setting of mounting groove 81, first pressure switch 86 and controller 22 electric connection, the moving contact of first pressure switch 86 is under the action of iron ball 84 and placing board 83's gravity, its moving contact can be closed at this moment, can give controller 22 an electrical signal, and after controller 22 starts, controller 22 control first pressure switch 86 and battery cell connection module 21, the first time delay circuit 22 is prevented from giving the time error under the initial judgement state of switch 22.
The U-shaped groove 9 is arranged at one end of the top of the upper insulating seat 4, the turning plate 10 is arranged in the U-shaped groove 9, the driving component 11 is arranged in the upper insulating seat 4, the upper insulating seat 4 is in transmission connection with the turning plate 10 through the driving component 11, the elastic telescopic components 12 are arranged at two ends of the turning plate 10, the traveling blocks 13 are fixedly connected with the two ends of the turning plate 10 through the elastic telescopic components 12, the grooves 14 are arranged at the ends of the inner parts of the two traveling blocks 13, the contact blocks 15 are slidably connected with the inner parts of the two grooves 14, the hardening conduction mechanism 16 matched with the two contact blocks 15 is jointly arranged in the two grooves 14 and the upper insulating seat 4, the hardening conduction mechanism 16 comprises a trigger switch 161 fixedly arranged at the bottoms of the two grooves 14, the end parts of the two contact blocks 15 are fixedly connected with a contact rod 162, the two contact blocks 15 and the groove walls of the groove 14 on the same side are fixedly connected with a rubber sleeve 163, the inside of the upper insulating seat 4 is provided with a round cavity 164, the output end of the driving assembly 11 is rotationally connected with the cavity wall of the round cavity 164, the output end of the driving assembly 11 is fixedly connected with an insulating plate 165, both ends of the side wall of the insulating plate 165 are fixedly connected with conducting rods 166, both sides of the cavity wall of the round cavity 164 are fixedly connected with conducting blocks 167 matched with the conducting rods 166, the two trigger switches 161 are electrically connected with the controller 22 through the two conducting rods 166 and the two conducting blocks 167, after the upper insulating seat 4 and the lower insulating seat 5 are installed, the conducting blocks 167 on the upper insulating seat 4 can be electrically connected with the storage battery assembly 21 and the controller 22 through conducting joints and the like, the trigger switches 161 are pressure switches, namely, the moving contacts of the trigger switches 161 are closed under the action of external extrusion force, at the moment, under the cooperation of the conducting rods 166 and the conducting blocks 167, an electrical signal may be given to the controller 22.
The inner walls of the lower insulating seat 5 and the upper insulating seat 4 are provided with a temperature sensing mechanism 17, the temperature sensing mechanism 17 comprises arc grooves 171 which are formed in the upper insulating seat 4 and the lower insulating seat 5, two opposite ends of the two arc grooves 171 are jointly provided with communication holes 172, the arc grooves 171 of the two arc grooves 171 are fixedly connected with a temperature-conducting insulating film 173, a group of thermistors 174 are fixedly arranged in the two arc grooves 171, the side walls of the upper insulating seat 4 and the lower insulating seat 5 are fixedly provided with electromagnetic switches 175 which are electrically connected with the group of thermistors 174 on the same side, the two electromagnetic switches 175 are electrically connected with a controller 22, after the temperature of the thermistors 174 rises, the connection loop resistance of the thermistors 174, the electromagnetic switches 175 and a storage battery assembly 21 is reduced, so that the current which is introduced into the inside of the electromagnetic switches 175 is increased, and then the moving contact of the electromagnetic switches 175 is magnetically closed, at the moment, the electromagnetic switches 175 give an electric signal to the controller 22, after the upper insulating seat 4 and the lower insulating seat 5 are fixedly provided with a group of thermistors 174, and the electromagnetic switches 175 can be electrically connected with the controller 22 through conductive contacts and the electromagnetic switches 175.
The terminal surface fixed mounting of going up insulating seat 4 has the air feed mechanism 18 with temperature sensing detection mechanism 17 fixed intercommunication, air feed mechanism 18 includes fixed mounting in the air pump 181 at insulating seat 4 top, the output fixedly connected with left blast pipe 182 of air pump 181, and left blast pipe 182 and homonymy arc groove 171 fixed intercommunication setting, the inside of left blast pipe 182 is equipped with normally closed solenoid valve 183, air pump 181 and normally closed solenoid valve 183 all with controller 22 electric connection, after the normally closed solenoid valve 183 circular telegram, can make left blast pipe 182 open, go up insulating seat 4 and lower insulating seat 5 installation back, air pump 181 on the insulating seat 4, normally closed solenoid valve 183 and battery pack 21 and controller 22 electric connection.
The side wall of the lower insulating seat 5 is fixedly provided with an air pressure trigger component 19 fixedly communicated with the temperature sensing detection mechanism 17, the air pressure trigger component 19 is fixedly inserted into a hollow column 191 on the side wall of the lower insulating seat 5, a piston 192 is slidably arranged in the hollow column 191, the piston 192 and the inner wall of the hollow column 191 are fixedly connected with a spring 193 together, the end part of the hollow column 191 and the groove wall of the same-side arc groove 171 are provided with vent holes 194 together, one side inner wall of the hollow column 191 away from the vent holes 194 is fixedly connected with a second pressure switch 195, the second pressure switch 195 is electrically connected with a controller 22, the moving contact of the second pressure switch 195 is retracted under the extrusion force of the piston 192, at this time, a connecting loop between the second pressure switch 195 and the storage battery component 21 is disconnected, and after the piston 192 is separated from the second pressure switch 195, the moving contact of the second pressure switch 195 is in rebound reset under the action of an elastic element of the self, at this time, the connecting loop between the second pressure switch 195 and the storage battery component 21 is closed, and an electric signal can be given to the controller 22.
The upper half-ring sleeve 2 and the lower half-ring sleeve 3 are fixedly connected with an air blowing mechanism 20 fixedly communicated with the air supply mechanism 18, the air blowing mechanism 20 comprises an air cavity 201 which is arranged in the upper insulating seat 4, the air cavity 201 is fixedly communicated with a right exhaust pipe 202 together with the output end of the air pump 181, a normally open electromagnetic valve 203 which is connected with a normally closed electromagnetic valve 183 in series is arranged in the right exhaust pipe 202, the inner walls of the upper half-ring sleeve 2 and the lower half-ring sleeve 3 are fixedly connected with a half-arc cover 204, opposite ends of the two half-arc covers 204 are in sealing propping arrangement, the air cavity 201 and the half-arc cover 204 on the same side are fixedly connected with a communicating pipe 205 together, a plurality of air injection holes 206 are formed in the inner walls of the two half-arc covers 204, the side walls of the upper semi-ring sleeve 2 and the lower semi-ring sleeve 3 are fixedly inserted with a group of semiconductor refrigerating sheets 207, the refrigerating ends of the semiconductor refrigerating sheets 207 are arranged inside the same-side semi-arc-shaped cover 204, the cold ends of the semiconductor refrigerating sheets 207 are arranged on the inner sides of the two semi-arc-shaped covers 204, the hot ends of the semiconductor refrigerating sheets are arranged on the outer sides of the upper semi-ring sleeve 2 and the lower semi-ring sleeve 3, the temperature of the cable 1 can be quickly reduced by utilizing the refrigerating operation of the semiconductor refrigerating sheets 207, the influence of the temperature generated by external sunlight irradiation on the temperature detection of the thermistor 174 is avoided, and after the upper insulating seat 4 and the lower insulating seat 5 are installed, the normally open electromagnetic valve 203 on the upper insulating seat 4 is electrically connected with the storage battery assembly 21 and the controller 22.
The electric heater 27 is fixedly arranged in the air cavity 201, the electric heater 27 is electrically connected with the controller 22, when the environmental temperature is low in winter, if snow or ice is stored on the surface of the cable 1, the air sprayed out of the air spraying holes 206 on the semi-arc cover 204 is heated, snow and ice can be removed in the walking process, the heating temperature of the electric heater 27 does not exceed 70 ℃, the electric heater 27 can be controlled to work by the controller 22 through the cooperation of the handheld terminal and the wireless communication transceiver 23, and the electric heater 27 can be electrically connected with the storage battery assembly 21 and the controller 22 after the upper insulating seat 4 and the lower insulating seat 5 are installed.
The principle of operation of the present invention will now be described as follows: the lower insulating seat 5 and the upper insulating seat 4 are sleeved outside one end of the cable 1 to be diagnosed, the upper semi-ring sleeve 2 and the lower semi-ring sleeve 3 are locked, and when a fault to be diagnosed exists in a conductor of the cable 1, an electric power maintainer sends a starting signal through a handheld terminal according to the fault to be diagnosed, at the moment, the wireless communication transceiver 23 receives the starting signal of the handheld terminal and enables the controller 22 to start working;
the controller 22 controls the driving assembly 11 to work and electrifies the spiral coil formed by the contact of the two wire groups 7, the driving assembly 11 works, the two traveling blocks 13 can be driven to overturn through the overturning plate 10 and the two elastic telescopic assemblies 12, the overturning plate 10 and the traveling blocks 13 are kept in parallel with the cable 1 in the initial state, the overturning extrusion force is applied to the traveling blocks 13 after the overturning plate 10 is overturned to be in contact with the outer skin of the cable 1, the distance between the traveling blocks 13 and the overturning plate 10 is shortened through the elastic telescopic assemblies 12 on the same side at the moment, when the traveling blocks 13 are overturned by 90 degrees, the extrusion contact point of the traveling blocks 13 and the cable 1 is not moved, so that the upper insulating seat 4 and the lower insulating seat 5 can be pulled to move along the cable 1 under the action of overturning force, and are alternately contacted and extruded with the cable 1 along with the alternation of the two traveling blocks 13, the upper insulating seat 4 and the lower insulating seat 5 can be continuously driven to move along the cable 1, when the traveling block 13 is turned to be vertical to the cable 1, the two conducting rods 166 and the conducting block 167 can connect the loop between the trigger switch 161 and the controller 22, when the traveling block 13 is vertical to the cable 1, the extrusion force of the insulating sheath of the cable 1 by the traveling block 13 is maximum, under the condition that the insulating sheath of the cable 1 is normal, the cable 1 has good soft elastic performance, the contact block 15 on the traveling block 13 can extrude the insulating sheath of the cable 1 after contacting the insulating sheath of the cable 1, the friction force between the traveling block 13 and the insulating sheath of the cable 1 is increased, the traveling stability of the lower insulating seat 5 and the upper insulating seat 4 is ensured, and after the insulating sheath of the cable 1 is hardened and embrittled due to aging, the soft elastic performance is lost due to the hardening of the insulating sheath of the cable 1, at this time, when the contact block 15 contacts the insulation sheath of the cable 1, the insulation sheath of the cable 1 cannot be extruded, so that the contact block 15 moves towards the inside of the groove 14 on the same side under the action of the counter extrusion force of the insulation sheath to the contact block 15, so as to drive the contact rod 162 to extrude the moving contact of the trigger switch 161, at this time, the trigger switch 161 is closed through a connecting loop between the conducting rod 166 and the conducting block 167 and the controller 22, and the controller 22 can receive an electric signal of the trigger switch 161, so at this time, the controller 22 controls the driving assembly 11 to stop working, and transmits the insulation sheath aging information of the cable 1 to the handheld terminal of an electric power maintainer through the wireless communication transceiver 23, and after the electric power maintainer records the aging point, the driving assembly 11 can be controlled to continue working through the wireless communication transceiver 23 and the controller 22;
in the moving process of the upper insulating seat 4 and the lower insulating seat 5, the spiral coils formed by the contact of the two wire groups 7 are electrified, so that the conductors of the cable 1 can generate a magnetic field, under the action of the magnetic field, the iron balls 84 in the mounting grooves 81 of the lower insulating seat 5 can be synchronously adsorbed, so that the iron balls 84 are separated from the placing plate 83, under the action of the elastic sleeve 82, the placing plate 83 can be separated from the moving contact of the first pressure switch 86, after the controller 22 is started, the controller 22 controls the first pressure switch 86 to be electrified with the connecting loop of the storage battery assembly 21 for 5 seconds in a delay manner, the magnetic field strength generated by the conductors of the cable 1 is almost unchanged after the normal parts of the conductors of the cable 1 are electrified, and when the wire groups 7 move to the fracture parts of the conductors of the cable 1 along with the upper insulating seat 4 and the lower insulating seat 5, since the advancing direction of the spiral coil formed by the contact of the wire set 7 moves to the breaking position first and the conductor at the side of the cable 1 is separated from the wire set along with the advancing direction, at this time, the magnetic field strength generated by the side conductor is obviously weakened because the number of turns of the coil on the side conductor is reduced, so that the magnetic attraction force to the iron ball 84 is reduced, after the gravity of the iron ball 84 cannot be overcome, the iron ball 84 falls onto the placing plate 83, so that the placing plate 83 moves downwards to touch the moving contact of the first pressure switch 86, at this time, the connection loop between the first pressure switch 86 and the storage battery assembly 21 and the controller 22 is closed, the controller 22 receives the electric signal of the first pressure switch 86, at this time, the controller 22 controls the driving assembly 11 to stop working, and sends a fault signal through the wireless communication transceiver 23, and the electric power maintainer stops according to the stop positions of the upper semi-ring sleeve 2 and the lower semi-ring sleeve 3, the conductor breaking point of the cable 1 can be known;
meanwhile, after the controller 22 is started, the air pump 181 is synchronously started, the normally closed electromagnetic valve 183 on the left exhaust pipe 182 and the normally open electromagnetic valve 203 on the right exhaust pipe 202 are electrified for 10 seconds at regular time, the controller 22 can enable the connection loop between the second pressure switch 195 and the storage battery assembly 21 to supply power for 11 seconds in a delayed mode, the air pump 181 can convey external air to the inside of the two arc grooves 171 through the communication hole 172 between the left exhaust pipe 182 and the two arc grooves 171, the piston 192 in the hollow column is pushed to move along with the increase of air pressure, the piston 192 can squeeze the moving contact of the second pressure switch 195, after the normally closed electromagnetic valve 183 and the normally open electromagnetic valve 203 are electrified for 10 seconds at regular time, the air conveyed by the air pump 181 can be conveyed to the inside of the air cavity 201 through the right exhaust pipe 202 due to the power outage of the normally closed electromagnetic valve 183 and the normally open electromagnetic valve 203, and is conveyed to the inside of the semi-arc cover 204 on the same side through the communication pipe 205, and then the air is sprayed out through the plurality of the communication holes 206 on the semi-arc cover 204, and the dirt possibly existing on the outer surface of the cable 1 can be removed in advance by utilizing sprayed air flow, so that the dirt on the outer surface of the cable 1 can be prevented from affecting the upper insulating seat 4 and the lower insulating seat 5 and the running stability and the running ball 84 is prevented from being caused;
in the running process, if the insulation sheath of the cable 1 has the positions of cracking, breakdown and breakage, etc., under the action of air pressure in the arc-shaped groove 171, when the temperature-conducting insulation film 173 moves to the fault, the temperature-conducting insulation film 173 is filled into the breakage, so that the air pressure in the hollow column 191 can be reduced, and then under the action of the spring 193, the piston 192 can be moved back by a certain gap, so as to eliminate the extrusion force of the piston 192 on the moving contact of the second pressure switch 195, at the moment, the moving contact of the second pressure switch 195 is rebound closed, so that an electric signal can be given to the controller 22, at the moment, the controller 22 controls the driving assembly 11 to stop moving, and transmits the insulation sheath breakage information of the cable 1 to the handheld terminal of an electric power maintainer through the wireless communication transceiver 23, and after the electric power maintainer records the breakage and the breakage point, the driving assembly 11 can be controlled to continue to work through the wireless communication transceiver 23 and the controller 22;
in the daily inspection process, the cable 1 is kept to normally perform power transmission work, a current maintainer can control a connection loop between the thermistor 174, the electromagnetic switch 175 and the storage battery assembly 21 to be communicated under the action of the wireless communication transceiver 23 through a handheld terminal, at the moment, in the running process of the upper insulating seat 4 and the lower insulating seat 5, if an abnormal temperature rising point caused by corrosion, aging of an insulating sheath and the like exists in the cable 1, when the thermistor 174 moves to the position, the temperature at the periphery of the thermistor 174 is also increased through the increased temperature, so that the resistance of the thermistor 174 can be reduced, the current flowing into the electromagnetic switch 175 at the same side can be increased, the moving contact of the electromagnetic switch 175 can be closed in a magnetic manner, at the moment, after the controller 22 receives an electric signal of the electromagnetic switch 175, the driving assembly 11 is controlled to stop moving, and after the abnormal temperature rising information of the cable 1 is transmitted to the handheld terminal of the power maintainer through the wireless communication transceiver 23, the abnormal temperature rising point at the position can be processed in time, so that hidden trouble and hidden trouble of the cable 1 can be eliminated;
in the first working mode, after receiving the start information of the wireless communication transceiver 23, the controller 22 controls the two wire groups 7 to contact and form a spiral coil to be electrified, so that the diagnosis and positioning of the conductor breaking point of the cable 1 are performed; in the second working mode, the spiral coil formed by the contact of the two wire groups 7 is not electrified, and the connection loops among the thermistor 174, the electromagnetic switch 175 and the storage battery assembly 21 are communicated, so that the diagnosis of the abnormal temperature rise point of the cable 1 can be performed; in both modes of operation, breakage, cracking and hardening of the insulating sheath due to aging of the cable 1 can be detected.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (3)
1. The utility model provides an analysis transmission line fault's diagnostic device, includes cable (1), goes up semi-ring cover (2) and semi-ring cover (3) down, its characterized in that, go up semi-ring cover (2) and semi-ring cover (3) each other articulated the setting down, and go up semi-ring cover (2) and semi-ring cover (3) cover and locate the outside of cable (1), the inner wall fixed mounting of semi-ring cover (3) down has battery module (21) and controller (22), and the lower extreme fixed mounting of semi-ring cover (3) has wireless communication transceiver (23) with controller (22) communication connection down, go up semi-ring cover (2) inner wall fixedly connected with upper insulating base (4), the inner wall fixedly connected with of semi-ring cover (3) down insulator base (5) down, the outside setting that cable (1) are located to upper insulating base (4) and lower insulator base (5) is sealed the setting up, the inner wall fixed mounting of semi-ring cover (4) and lower insulator base (5) has wire (6) and two wire sets up the wire sets up in spiral groove (7) and two wire sets up the wire sets of two wire sets (7) and two wire sets of spiral wire sets (7) are connected to form the wire sets of two wire sets of wire sets (7) and two spiral wire sets of wire sets (7) are connected with each other wire sets, the magnetic triggering mechanism (8) is arranged on the inner wall of the lower insulating seat (5), the magnetic triggering mechanism (8) comprises a mounting groove (81) formed in the inner wall of the lower insulating seat (5), an elastic sleeve (82) is fixedly arranged at the inner bottom of the mounting groove (81), a placing plate (83) is fixedly connected to the top of the elastic sleeve (82), an iron ball (84) is placed above the placing plate (83), a baffle ring (85) is fixedly arranged at the notch of the mounting groove (81), a first pressure switch (86) is arranged in the elastic sleeve (82), the first pressure switch (86) is fixedly arranged at the bottom of the mounting groove (81), the first pressure switch (86) is electrically connected with the controller (22), the magnetic field generated by the conductor of the cable (1) can be adsorbed by the enclosing and electrifying of the wire group (7), the iron ball (84) can drop synchronously at a conductor breaking point of the cable (1), and the iron ball (84) can drop onto the placing plate (83) and touch the first pressure switch (86) to enable the first pressure switch (23) to send out a signal, and the first pressure switch (23) can touch the first pressure switch;
u-shaped groove (9) has been seted up to top one end of last insulating seat (4), and the inside of U-shaped groove (9) is equipped with turns over board (10), drive assembly (11) is installed to last insulating seat (4), and go up insulating seat (4) and turn over board (10) transmission and be connected, elastic expansion assembly (12) are all installed at the both ends of turning over board (10), and the both ends of turning over board (10) all are through elastic expansion assembly (12) fixedly connected with walking piece (13), drive assembly (11) drive two walking pieces (13) upset through turning over board (10) and two elastic expansion assembly (12), two the tip of the inside of walking piece (13) has all been seted up fluted (14), and the inside of two fluted (14) all sliding connection have touch briquetting (15), two recess (14) and the inside of last insulating seat (4) install jointly with two touch briquetting (15) matched with hardening mechanism (16), hardening mechanism (16) are including set up in fixed setting up in two fluted groove (14) tank bottom (14) trigger two recess (163) and two recess wall (161) are connected with two recess wall (161 and two recess wall (161) and two same side contact briquetting (162), the inside of upper insulating seat (4) has offered round chamber (164), and the output of drive assembly (11) rotates with the chamber wall in round chamber (164) to be connected, the output of drive assembly (11) fixedly connected with insulation board (165), and the lateral wall both ends of insulation board (165) all fixedly connected with conducting rod (166), the chamber wall both sides of round chamber (164) all fixedly connected with conducting rod (166) assorted conducting block (167), two trigger switch (161) all pass through two conducting rod (166) and two conducting blocks (167) and controller (22) electric connection, trigger piece (15) can extrude the moving contact of trigger switch (161) through touch rod (162) when moving to the insulating crust hardening position department of cable (1), after the moving contact of trigger switch (161) is closed, controller (22) control drive assembly (11) stop working to send fault signal through wireless communication transceiver (23);
the utility model discloses a temperature-sensing detection mechanism (17) is installed to the inner wall of lower insulating seat (5) and last insulating seat (4), temperature-sensing detection mechanism (17) are including opening arc groove (171) in upper insulating seat (4) and lower insulating seat (5) inside, and two arc groove (171) both ends in opposite directions have offered intercommunicating pore (172) jointly, two the arc notch of arc groove (171) is all fixedly connected with heat conduction insulating film (173), two the inside of arc groove (171) is all fixedly installed a set of thermistor (174), the lateral wall of upper insulating seat (4) and lower insulating seat (5) is all fixedly installed electromagnetic switch (175) with a set of thermistor (174) electric connection of homonymy, and two electromagnetic switch (175) all with controller (22) electric connection, heat conduction insulating film (173) are used for transmitting the temperature of cable (1) to thermistor (174) department, the temperature of thermistor (174) week department rises, can make the resistance value of thermistor (174) reduce, upper insulating seat (4) and lower insulating seat (5) lateral wall is all fixedly installed in air pump (18) of air pump (18) fixed with air pump (18) fixed connection's (181), the left exhaust pipe (182) is fixedly communicated with the arc-shaped groove (171) on the same side, a normally closed electromagnetic valve (183) is arranged in the left exhaust pipe (182), the air pump (181) and the normally closed electromagnetic valve (183) are electrically connected with the controller (22), the output end of the air pump (181) can convey air to the inside of the arc-shaped groove (171) through the left exhaust pipe (182) and the normally closed electromagnetic valve (183), and the air pump (181) can convey air to the inside of the arc-shaped groove (171) so that a heat-conducting insulating film (173) at the arc-shaped groove opening of the arc-shaped groove (171) can expand and cling to and abut against a cable (1);
the side wall of the lower insulating seat (5) is fixedly provided with an air pressure trigger component (19) fixedly communicated with the temperature sensing detection mechanism (17), the air pressure trigger component (19) is fixedly inserted into a hollow column (191) on the side wall of the lower insulating seat (5), a piston (192) is arranged in the hollow column (191) in a sliding manner, the piston (192) and the inner wall of the hollow column (191) are fixedly connected with a spring (193) jointly, the end part of the hollow column (191) and the groove wall of the same-side arc-shaped groove (171) are jointly provided with a vent hole (194), one side inner wall of the hollow column (191) far away from the vent hole (194) is fixedly connected with a second pressure switch (195), the second pressure switch (195) is electrically connected with a controller (22), air in the arc-shaped groove (171) can synchronously enter the hollow column (191), when a moving contact of the second pressure switch (195) is in a rebound closed, the controller (22) controls the driving component (11) to stop moving, and sends a fault signal through a wireless communication device (23), the upper half ring (2) and the lower half ring (3) are fixedly connected with an air blowing mechanism (20) and the air receiving and the air cavity (20) are fixedly connected with the air cavity (20), and air cavity (201) and the output of air pump (181) are fixed intercommunication jointly has right blast pipe (202), normal open solenoid valve (203) of right blast pipe (202) internally mounted with normal close solenoid valve (183) series connection, the equal fixedly connected with semi-arc cover (204) of inner wall of last semi-ring cover (2) and lower semi-ring cover (3), and the both ends that two semi-arc covers (204) are in opposite directions all are sealed the offset setting, air cavity (201) and the equal fixedly connected with communicating pipe (205) of homonymy semi-arc cover (204), two a plurality of fumaroles (206) have all been seted up to the inner wall of semi-arc cover (204), the lateral wall of last semi-ring cover (2) and lower semi-ring cover (3) is all fixed to peg graft and is had a set of semiconductor refrigeration piece (207), and the refrigeration end of each semiconductor refrigeration piece (207) all is located the inside setting of homonymy semi-arc cover (204), the refrigeration end of semiconductor refrigeration piece (207) can cool down cable (1), the air that air pump (181) output carried gets into inside through right blast pipe (205) and gets into through inside (2) the fumaroles (206), and the inside particle that can be passed through in the blast pipe (2) and the inner portion of the blast pipe (3) is blown out.
2. The diagnostic device for analyzing the power transmission line fault according to claim 1, wherein connecting rods (24) are fixedly installed on two sides of two ends of the lower semi-ring sleeve (3), arc-shaped hollow blocks (25) are fixedly connected to the lower ends of the two connecting rods (24), and a plurality of steel balls (26) are filled in the two arc-shaped hollow blocks (25).
3. The diagnostic device for analyzing power transmission line faults according to claim 1, wherein an electric heater (27) is fixedly installed inside the air cavity (201), and the electric heater (27) is electrically connected with the controller (22).
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| CN116907652B (en) * | 2023-09-14 | 2023-12-08 | 国网山西省电力公司超高压输电分公司 | Remote temperature tracking measurement system and method for overhead cable |
| CN117748368B (en) * | 2023-11-14 | 2024-08-30 | 山东凯路威电力工程有限公司 | Cable laying traction device for electrical engineering construction |
| CN118275106A (en) * | 2024-06-03 | 2024-07-02 | 中交第二公路工程局有限公司 | Bridge guy cable stretching resonance detection device |
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