CN106405321A - Detection equipment for power line fault - Google Patents
Detection equipment for power line fault Download PDFInfo
- Publication number
- CN106405321A CN106405321A CN201610481590.3A CN201610481590A CN106405321A CN 106405321 A CN106405321 A CN 106405321A CN 201610481590 A CN201610481590 A CN 201610481590A CN 106405321 A CN106405321 A CN 106405321A
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- China
- Prior art keywords
- hydraulic cylinder
- base
- electric power
- cable
- power cable
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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
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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)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses detection equipment for a power line fault. The detection equipment comprises an ultrasonic detection assembly and a pedestal arranged below the ultrasonic detection assembly. The ultrasonic detection assembly consists of a fixed ring, an ultrasonic transmitter and an ultrasonic receiver that are arranged at the inner side of the fixed ring; an opening is formed in one side of the fixed ring; and the ultrasonic transmitter and the ultrasonic receiver are arranged at the two sides of the opening. Besides, two support rods are arranged on the pedestal; mounting plates are arranged at the outer side of the fixed ring and are particularly arranged at the two sides of the opening symmetrically; and the two mounting plates are fixedly connected to the support rods by the bolt. According to the invention, with the ultrasonic detection assembly, detection and positioning on a cable fault are realized; and continuous detection of an overhead cable is realized.
Description
Technical field
The present invention relates to a kind of electric power cable fault test set.
Background technology
During electric power cable life-time service, occur it has not been convenient to detect during defect inside it, existing testing equipment generally only can detect to outside cable, in cable inner existing defects it is impossible to convenient detect and position；Simultaneously as electric power cable usual multiply in electric power high-altitude is parallel being erected on electric force pole tower, sometimes for installs connector so as to keep stable between cable, lead to existing crusing robot can not carry out continuous detecting when reaching adapter position.
Content of the invention
It is an object of the invention to provide a kind of electric power cable fault test set, the problem of prior art presence can be improved, by ultrasound examination assembly, realize the detection to cable fault and positioning, realize the continuous detecting of overhead cable.
The present invention is achieved through the following technical solutions：
A kind of electric power cable fault test set，Including ultrasound examination assembly and be arranged on the base below described ultrasound examination assembly，Described ultrasound examination assembly includes ring for fixing and is arranged on the ultrasonic transmitter inside described ring for fixing and ultrasonic receiver，Described ring for fixing side is provided with opening，Described ultrasonic transmitter and described ultrasonic receiver are located at described opening both sides respectively，2 support bars are provided with described base，It is respectively arranged with installing plate outside ring for fixing described in 2，Installing plate described in 2 is symmetrically arranged at described opening both sides，Installing plate described in 2 is bolted to connection respectively on described support bar，It is provided with 3 mobile support plates below described base，The width of described mobile support plate is more than the width of described base，It is respectively arranged with first hydraulic cylinder above described mobile support plate two ends，Described first hydraulic cylinder bottom is fixedly connected on described mobile support plate upper surface，The expansion link of described first hydraulic cylinder is fixedly connected on described base lower surface，Described mobile support plate side wall is provided with 2 flanges，It is provided with rotating shaft between described flange，Described rotating shaft two ends are rotatably connected on described flange by bearing，It is set with vertical rod in described rotating shaft，In described vertical rod, described rotating shaft one end is provided with roller，To inner side concave shape forming V-shape groove in the middle part of described roller，Described roller can be articulated on cable，Each described mobile support plate bottom is provided with 2 second hydraulic cylinders，It is provided with connecting rod in the middle part of described rotating shaft，Described second hydraulic cylinder one end is hinged on described mobile support plate lower surface，The described second hydraulic cylinder other end is rotatably connected in described connecting rod，Described base upper surface is provided with controller，Support is arranged on described base upper surface，Described support is provided with fixing axle，Described fixing axle two ends are rotatably connected on described support by bearing，Described fixing axle is set with gear，Motor for driving described fixing axle to rotate is provided with described base，Described motor、First hydraulic cylinder、Second hydraulic cylinder is connected with described controller by circuit respectively，It is respectively arranged with photographic head in described base rear and front end，Described photographic head、Ultrasonic transmitter and ultrasonic receiver are connected with described controller by circuit respectively.
Further, for the present invention is better achieved, described base upper surface is provided with lifter plate, it is provided with stud on described lifter plate, described stud lower end is fixedly connected on described base, described lifter plate is run through in described stud upper end, the stud described in described lifter plate both sides is respectively arranged with adjusting nut, described motor and described support are respectively fixedly connected with described lifter plate upper surface.
Further, for the present invention is better achieved, sprocket wheel is provided with described fixing axle, the sprocket wheel that described motor passes through described in chain-driving rotates.
Further, for the present invention is better achieved, described support bar lower end is fixedly connected on described lifter plate.
Further, for the present invention is better achieved, described gear is be symmetricly set in described fixing axle 2, and the gear described in 2 is symmetrically arranged at cable down either side.
Further, for the present invention is better achieved, described gear is straight bevel gear.
Further, for the present invention is better achieved, it is respectively arranged with anticollision module in the rear and front end of described base, described anticollision module includes infrared transmitter and the infrared remote receiver being connected with described controller respectively by circuit.
Further, for the present invention is better achieved, it is provided with anti-slop serrations inside described V-shaped groove, the described V-shaped groove lopsidedness described in anti-skidding teeth directional is arranged.
The present invention compared with prior art, has the advantages that：
After the present invention detects to the cable of compound standard, using its detection data as benchmark data, in motor driven gear rotation process, under frictional force effect, gear can move relative to cable, drive overall structure to move along length of cable direction, now received to cable transmission ultrasonic signal and to signal using ultrasonic not detection components, according to the change of receipt signal, paired observation cable inner whether there is defect；Simultaneously using vertical rod can be relatively rotated, so that the roller being arranged in vertical rod is removed from cable when needed, conveniently realize overall structure and clear the jumps, realize the continuous monitoring of cable defect.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, the accompanying drawing of use required in embodiment will be briefly described below, it should be understood that, the following drawings illustrate only certain embodiments of the present invention, therefore it is not construed as the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is front view of the present invention；
Fig. 2 is top view of the present invention；
Fig. 3 is ultrasound examination modular construction schematic diagram of the present invention.
Wherein：101. bases, 102. mobile support plates, 103. first hydraulic cylinders, 104. flanges, 105. rotating shafts, 106. vertical rods, 107. rollers, 108.V shape groove, 109. second hydraulic cylinders, 110. connecting rods, 111. controllers, 112. supports, 113. fixing axles, 114. gears, 115. motors, 116. lifter plates, 117. studs, 118. adjusting nuts, 119. photographic head, 120. sprocket wheels, 121. anticollision modules, 122. anti-slop serrations, 123. ring for fixings, 124. openings, 125. support bars, 126. installing plates.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1：
In the present embodiment, normally qualified cable is detected, ultrasound examination assembly is arranged on qualified cable both sides, make ultrasonic transmitter and the setting of ultrasonic receiver relative tilt, after the ultrasonic signal of ultrasonic transmitter transmitting is reflected by cable inner, received by ultrasonic receiver, using the ultrasonic signal of qualified cable detection as reference signal, contrast before and after conveniently carrying out.
As Figure 1-3，A kind of electric power cable fault test set，Including ultrasound examination assembly and be arranged on the base 101 below described ultrasound examination assembly，Described ultrasound examination assembly includes ring for fixing 123 and is arranged on the described ultrasonic transmitter of ring for fixing 123 inner side and ultrasonic receiver，Described ring for fixing 123 side is provided with opening 124，Described ultrasonic transmitter and described ultrasonic receiver are located at described opening 124 both sides respectively，2 support bars 125 are provided with described base 101，It is respectively arranged with installing plate 126 outside ring for fixing 123 described in 2，Installing plate 126 described in 2 is symmetrically arranged at described opening 124 both sides，Installing plate 126 described in 2 is bolted to connection respectively on described support bar 125，It is provided with 3 mobile support plates 102 below described base 101，The width of described mobile support plate 102 is more than the width of described base 101，It is respectively arranged with first hydraulic cylinder 103 above described mobile support plate 102 two ends，Described first hydraulic cylinder 103 bottom is fixedly connected on described mobile support plate 102 upper surface，The expansion link of described first hydraulic cylinder 103 is fixedly connected on described base 101 lower surface，Described mobile support plate 102 side wall is provided with 2 flanges 104，It is provided with rotating shaft 105 between described flange 104，Described rotating shaft 105 two ends are rotatably connected on described flange 104 by bearing，It is set with vertical rod 106 in described rotating shaft 105，In described vertical rod 106, described rotating shaft 105 one end is provided with roller 107，To inner side concave shape forming V-shape groove 108 in the middle part of described roller 107，Described roller 107 can be articulated on cable，Each described mobile support plate 102 bottom is provided with 2 second hydraulic cylinders 109，It is provided with connecting rod 110 in the middle part of described rotating shaft 105，Described second hydraulic cylinder 109 one end is hinged on described mobile support plate 102 lower surface，Described second hydraulic cylinder 109 other end is rotatably connected in described connecting rod 110，Described base 101 upper surface is provided with controller 111，Support 112 is arranged on described base 101 upper surface，Described support 112 is provided with fixing axle 113，Described fixing axle 113 two ends are rotatably connected on described support 112 by bearing，Described fixing axle 113 is set with gear 114，Motor 115 for driving described fixing axle 113 to rotate is provided with described base 101，Described motor 115、First hydraulic cylinder 103、Second hydraulic cylinder 109 is connected with described controller 111 by circuit respectively，It is respectively arranged with photographic head 119 in described base 101 rear and front end，Described photographic head 119、Ultrasonic transmitter and ultrasonic receiver are connected with described controller 111 by circuit respectively.
In the present embodiment, fixed trap is contained in outside cable, makes ultrasonic transmitter and ultrasonic receiver be located at cable both sides respectively, the opening upwards of ring for fixing or downward can be made, be arranged as required to.In overall structure moving process, make ultrasonic transmitter send ultrasonic signal, ultrasonic signal is reflected by cable inner or reflects, received by ultrasonic receiver, by contrasting reference signal, judge whether fault.
In the present embodiment, it is respectively provided with vertical rod in each mobile support plate both sides, roller is respectively provided with vertical rod, roller rotates connection relative to vertical rod upper end, make the axis of roller vertical relative to vertical rod, when being patrolled and examined, the vertical rod of both sides is made to be located at outside two lines cable, the roller in vertical rod is made to be fitted on two lines cable, due to being provided with V-shaped groove structure, enable stable being articulated on cable upper surface of roller, after roller is articulated on cable, the gear on support is made to be fitted on the lower surface of cable, start motor, it is made to drive in fixing axle rotation process, gear rotates relative to cable, in the presence of frictional force, overall structure is driven to move along length of cable direction.Due to being respectively arranged with vertical rod and roller structure in mobile support plate both sides, one rectangular configuration can be formed on cable, base plate is enable firmly to be articulated on cable, help to maintain it stable, line construction for stranded cable parallel arrangement, gear is made to be located at below the cable of middle part, when when patrolling and examining, making gear be located therein the lower section of a share of cable for two shares of cable.
When running into barrier，Stop motor operation，Start the first hydraulic cylinder being located above anterior mobile support plate，This first hydraulic cylinder is made to promote this movement support plate to vertically move，Make to move on mobile support plate，When mobile support plate drives and moves in vertical rod，Corresponding roller is made to deviate from from cable upper end，Now start the second hydraulic cylinder below this movement support plate，It is made to promote connecting rod to rotate，Under the drive of connecting rod，Rotating shaft opposing flanges are made to rotate，Rotating shaft drives vertical rod to rotate，Until the roller of vertical rod upper end is fully located at outside cable，Now start motor，Make overall structure continue on length of cable direction to move，When the roller group positioned at middle part reaches barrier position，Stop motor operation，Second hydraulic cylinder is made to promote the vertical rod being located on anterior mobile support plate to relatively rotate，Until corresponding roller is located above cable，Now mobile support plate is promoted to vertically move using first hydraulic cylinder，Until roller is articulated on cable，The roller group being pointed to middle part repeats aforesaid operations，Roller above three mobile support plates all clears the jumps.
The present invention adopts said structure, can easily realize clearing the jumps, can be used in being provided with patrolling and examining of the cable of adapter, in use, using photographic head captured in real-time line conditions, remote transmission module is set in controller, real-time pictures are transferred to the mobile terminal of staff, corresponding transport module and mobile terminal can adopt existing structure, be capable of patrolling and examining of overhead cable, structure is safe and reliable.In the present invention, band-type brake can be arranged on motor, convenient it is run is controlled.
In the present embodiment, positioner is set in controller, is located signal and is sent to mobile terminal in real time, conveniently cable fault point is positioned.
Embodiment 2：
In the present embodiment, for convenience the height of gear is adjusted, can preferably be fitted on cable, preferably, described base 101 upper surface is provided with lifter plate 116, it is provided with stud 117 on described lifter plate 116, described stud 117 lower end is fixedly connected on described base 101, described lifter plate 116 is run through in described stud 117 upper end, it is respectively arranged with adjusting nut 118 on stud 117 described in described lifter plate 116 both sides, described motor 115 and described support 112 are respectively fixedly connected with described lifter plate 116 upper surface.When needed, rotate adjusting nut, so that stud is vertically moved, during stud vertically moves, lifter plate is driven to vertically move such that it is able to adjust the height of lifter plate, then adjust the height of gear, so that gear is preferably fitted in below cable it is adaptable to different cables uses.
In the present invention, in order to adjust the height of ultrasound examination assembly as needed it is preferable that described support bar 125 lower end is fixedly connected on described lifter plate 116.During adjustment gear, the height of synchronization control ultrasound examination assembly.
In the present embodiment, described motor can be to drive fixing axle to rotate using gear drive or bel-drivenn mode it is preferable that being provided with sprocket wheel 120 in described fixing axle 113, and the sprocket wheel 120 that described motor 115 passes through described in chain-driving rotates.Sprocket wheel can be arranged on the rotating shaft of motor, connect the sprocket wheel on motor and fixing axle using chain.In the present embodiment, it would however also be possible to employ that other kind of drive.
Embodiment 3：
In order to increase the frictional force between gear and cable, overall structure is made to run relatively reliable, in the present embodiment, preferably, described gear 114 is be symmetricly set in described fixing axle 113 2, and the gear 114 described in 2 is symmetrically arranged at cable down either side.
In order that gear can preferably be fitted on cable, in the present embodiment, it is further preferred that described gear 114 is straight bevel gear.Straight bevel gear is made to be fitted in cable down either side.
Embodiment 4：
In the present embodiment, in order to avoid the barrier on cable collides present configuration, preferably, it is respectively arranged with anticollision module 121 in the rear and front end of described base 101, described anticollision module 121 includes infrared transmitter and the infrared remote receiver being connected with described controller 111 respectively by circuit.When the infrared signal that infrared transmitter sends is received by the barrier infrared remote receiver that is reflected back that come on man, represent there is barrier, controller can motor stall.In the present embodiment, it would however also be possible to employ other anticollision modules.
In the present embodiment, in order to increase the frictional force between roller and cable it is preferable that being provided with anti-slop serrations 122 inside described V-shaped groove 108, described anti-slop serrations 122 are to described V-shaped groove 108 lopsidedness setting.By adopting anti-slop serrations, the frictional force between cable and roller can be increased, it is to avoid when the situations such as high wind occur, roller unnecessary moving relative to cable, help to maintain overall structure stable.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All any modification, equivalent substitution and improvement within the spirit and principles in the present invention, made etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of electric power cable fault test set it is characterised in that：Including ultrasound examination assembly and be arranged on the base below described ultrasound examination assembly（101）, described ultrasound examination assembly includes ring for fixing（123）And it is arranged on described ring for fixing（123）The ultrasonic transmitter of inner side and ultrasonic receiver, in described ring for fixing（123）Side is provided with opening（124）, described ultrasonic transmitter and described ultrasonic receiver are located at described opening respectively（124）Both sides, in described base（101）On be provided with 2 support bars（125）, ring for fixing described in 2（123）Outside is respectively arranged with installing plate（126）, installing plate described in 2（126）It is symmetrically arranged at described opening（124）Both sides, the installing plate described in 2（126）It is bolted to connection respectively in described support bar（125）On, in described base（101）Lower section is provided with 3 mobile support plates（102）, described mobile support plate（102）Width be more than described base（101）Width, in described mobile support plate（102）It is respectively arranged with first hydraulic cylinder above two ends（103）, described first hydraulic cylinder（103）Bottom is fixedly connected on described mobile support plate（102）On upper surface, described first hydraulic cylinder（103）Expansion link be fixedly connected on described base（101）On lower surface, in described mobile support plate（102）2 flanges are provided with the wall of side（104）, described flange（104）Between be provided with rotating shaft（105）, described rotating shaft（105）Two ends are rotatably connected on described flange by bearing（104）On, described rotating shaft（105）On be set with vertical rod（106）, in described vertical rod（106）Away from described rotating shaft（105）One end is provided with roller（107）, described roller（107）Middle part is to inner side concave shape forming V-shape groove（108）, described roller（107）Can be articulated on cable, in each described mobile support plate（102）Bottom is provided with 2 second hydraulic cylinders（109）, in described rotating shaft（105）Middle part is provided with connecting rod（110）, described second hydraulic cylinder（109）One end is hinged on described mobile support plate（102）On lower surface, described second hydraulic cylinder（109）The other end is rotatably connected on described connecting rod（110）On, in described base（101）Controller is provided with upper surface（111）, in described base（101）Support is arranged on upper surface（112）, in described support（112）On be provided with fixing axle（113）, described fixing axle（113）Two ends are rotatably connected on described support by bearing（112）On, in described fixing axle（113）On be set with gear（114）, in described base（101）On be provided with for driving described fixing axle（113）The motor rotating（115）, described motor（115）, first hydraulic cylinder（103）, second hydraulic cylinder（109）Pass through circuit and described controller respectively（111）It is connected, in described base（101）Rear and front end is respectively arranged with photographic head（119）, described photographic head（119）, ultrasonic transmitter and ultrasonic receiver pass through circuit and described controller respectively（111）It is connected.
2. a kind of electric power cable fault test set according to claim 1 it is characterised in that：In described base（101）Lifter plate is provided with upper surface（116）, described lifter plate（116）On be provided with stud（117）, described stud（117）Lower end is fixedly connected on described base（101）On, described stud（117）Described lifter plate is run through in upper end（116）, in described lifter plate（116）The described stud of both sides（117）On be respectively arranged with adjusting nut（118）, described motor（115）With described support（112）It is respectively fixedly connected with described lifter plate（116）On upper surface.
3. a kind of electric power cable fault test set according to claim 2 it is characterised in that：In described fixing axle（113）On be provided with sprocket wheel（120）, described motor（115）By the sprocket wheel described in chain-driving（120）Rotate.
4. a kind of electric power cable fault test set according to Claims 2 or 3 it is characterised in that：Described support bar（125）Lower end is fixedly connected on described lifter plate（116）On.
5. a kind of electric power cable fault test set according to claim 1 or 2 or 3 it is characterised in that：Described gear（114）For being symmetricly set on described fixing axle（113）On 2, the gear described in 2（114）It is symmetrically arranged at cable down either side.
6. a kind of electric power cable fault test set according to claim 5 it is characterised in that：Described gear（114）For straight bevel gear.
7. a kind of electric power cable fault test set according to claim 1 or 2 or 3 it is characterised in that：In described base（101）Rear and front end be respectively arranged with anticollision module（121）, described anticollision module（121）Including respectively by circuit and described controller（111）The infrared transmitter being connected and infrared remote receiver.
8. a kind of electric power cable fault test set according to claim 1 or 2 or 3 it is characterised in that：In described V-shaped groove（108）Inner side is provided with anti-slop serrations（122）, described anti-slop serrations（122）To described V-shaped groove（108）Lopsidedness is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610481590.3A CN106405321B (en) | 2016-06-28 | 2016-06-28 | Power cable fault detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610481590.3A CN106405321B (en) | 2016-06-28 | 2016-06-28 | Power cable fault detection equipment |
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| CN106405321A true CN106405321A (en) | 2017-02-15 |
| CN106405321B CN106405321B (en) | 2023-08-11 |
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| CN201610481590.3A Active CN106405321B (en) | 2016-06-28 | 2016-06-28 | Power cable fault detection equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885926A (en) * | 2017-03-31 | 2017-06-23 | 国网山东省电力公司龙口市供电公司 | A kind of electric power cable failure detector |
| CN110703034A (en) * | 2019-09-20 | 2020-01-17 | 国网山东省电力公司微山县供电公司 | Power pipeline inspection device |
| CN111024702A (en) * | 2020-01-15 | 2020-04-17 | 东阳罗素电子科技有限公司 | Cable detection equipment |
| CN111856212A (en) * | 2020-08-04 | 2020-10-30 | 安徽凯诺电缆科技有限公司 | Power cable multiple pulse fault distance measuring device |
| CN112607022A (en) * | 2020-12-29 | 2021-04-06 | 国网山东省电力公司蒙阴县供电公司 | Power transmission and distribution line inspection device |
| CN113447496A (en) * | 2020-10-22 | 2021-09-28 | 朱振一 | Electronic information equipment power transmission line fault detection device and detection method |
| CN113810102A (en) * | 2020-06-12 | 2021-12-17 | 中国联合网络通信集团有限公司 | Optical cable detection equipment, system and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106885926A (en) * | 2017-03-31 | 2017-06-23 | 国网山东省电力公司龙口市供电公司 | A kind of electric power cable failure detector |
| CN106885926B (en) * | 2017-03-31 | 2023-07-21 | 国网山东省电力公司烟台市福山区供电公司 | Power cable fault detection device |
| CN110703034A (en) * | 2019-09-20 | 2020-01-17 | 国网山东省电力公司微山县供电公司 | Power pipeline inspection device |
| CN111024702A (en) * | 2020-01-15 | 2020-04-17 | 东阳罗素电子科技有限公司 | Cable detection equipment |
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| CN113810102A (en) * | 2020-06-12 | 2021-12-17 | 中国联合网络通信集团有限公司 | Optical cable detection equipment, system and method |
| CN111856212A (en) * | 2020-08-04 | 2020-10-30 | 安徽凯诺电缆科技有限公司 | Power cable multiple pulse fault distance measuring device |
| CN111856212B (en) * | 2020-08-04 | 2023-03-14 | 安徽凯诺电缆科技有限公司 | Power cable multi-pulse fault distance measuring device |
| CN113447496A (en) * | 2020-10-22 | 2021-09-28 | 朱振一 | Electronic information equipment power transmission line fault detection device and detection method |
| CN112607022A (en) * | 2020-12-29 | 2021-04-06 | 国网山东省电力公司蒙阴县供电公司 | Power transmission and distribution line inspection device |
| CN112607022B (en) * | 2020-12-29 | 2021-11-16 | 国网山东省电力公司蒙阴县供电公司 | Power transmission and distribution line inspection device |
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| CN106405321B (en) | 2023-08-11 |
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