CN113484677B - Automatic diagnosis device for troubleshooting of power electronic circuit - Google Patents
Automatic diagnosis device for troubleshooting of power electronic circuit Download PDFInfo
- Publication number
- CN113484677B CN113484677B CN202110761635.3A CN202110761635A CN113484677B CN 113484677 B CN113484677 B CN 113484677B CN 202110761635 A CN202110761635 A CN 202110761635A CN 113484677 B CN113484677 B CN 113484677B
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- connecting frame
- main body
- top connecting
- troubleshooting
- screw rod
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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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- 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
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides an automatic diagnosis device for troubleshooting based on a power electronic circuit, which relates to the technical field of circuit troubleshooting and comprises a driving shaft and a diagnosis component; the top of the main body is connected with the top connecting frame, and the movable frame is connected with the top of the top connecting frame; the screw rod is connected to the rear side of the top connecting frame, and the top end of the screw rod is connected with the movable frame; the driving shaft is connected with the screw rod; the diagnosis component is arranged in the main body, and the top end of the diagnosis component is positioned in the top connecting frame; according to the invention, the movable frame connected with the top of the top connecting frame is lifted and adjusted according to the thickness degree of the cable, the spacing distance between the upper and lower groups of wire clamping concave wheels is changed, the upper and lower groups of wire clamping concave wheels are clamped outside the cable to be subjected to fault troubleshooting, the detection-level top sealing cover is attached to the bottom side of the cable, and the upper and lower groups of wire clamping concave wheels move along the direction of the cable, so that the sequential diagnosis and troubleshooting operation of the whole cable line is realized.
Description
Technical Field
The invention belongs to the technical field of circuit troubleshooting, and particularly relates to an automatic diagnosis device for troubleshooting based on a power electronic circuit.
Background
With the rapid development of economic construction in China, the overhead power cable power supply system is more and more widely applied to industrial and mining enterprises, ports, railways, airports, national defense projects, urban power supply and other departments. And the cable faults are inevitable, so that the power cable faults are effectively, quickly and accurately diagnosed and predicted, and the reliable and safe operation of a power cable power supply system, especially an overhead power cable power supply system, is guaranteed.
The automatic diagnosis device for circuit fault troubleshooting can refer to patent No. CN211348406U, and mainly comprises a handle and a detection rod arranged above the handle, wherein a circuit module is arranged in the handle, an LED lamp is arranged in the middle of the detection rod, an accommodating cavity is arranged in the detection rod, an induction coil is arranged in the accommodating cavity, and the LED lamp and the induction coil are both electrically connected with the circuit module; when the non-contact test pencil is used for circuit detection, whether the circuit is electrified or not can be detected without contacting the circuit; and the power-off point in the circuit can be detected, and the circuit has the advantages of high safety and simple circuit.
The existing overhead cable troubleshooting and diagnosis operation mostly adopts electric power overhaul personnel to climb ladders, and a non-contact test pencil mode is held by hands, so that the overhead cable is subjected to subsection fault diagnosis, the ladder is required to be repeatedly climbed by the electric power overhaul personnel, the process is relatively complex, the time is long, and the cable fault maintenance efficiency is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic diagnosis device for troubleshooting based on a power electronic circuit, which aims to solve the problems that the existing overhead cable troubleshooting diagnosis operation mostly adopts a mode that an electric power maintainer climbs a ladder and holds a non-contact test pencil to perform subsection failure diagnosis on an overhead cable, the electric power maintainer needs to repeatedly climb the ladder, the process is complicated, the consumed time is long, and the cable failure maintenance efficiency is influenced.
The invention relates to an automatic diagnosis device for troubleshooting based on a power electronic circuit, which is achieved by the following specific technical means:
an automatic diagnosis device for troubleshooting based on a power electronic circuit comprises a main body, a screw rod, a driving shaft and a diagnosis component;
the top of the main body is connected with the top connecting frame, and the movable frame is connected to the top of the top connecting frame;
the screw rod is connected to the rear side of the top connecting frame, and the top end of the screw rod is connected with the movable frame;
the driving shaft is connected with the screw rod;
the diagnosis component is installed in the main body, and the top end of the diagnosis component is located in the top connecting frame.
Further, the diagnostic component comprises;
the non-contact sensing electricity module is arranged in the main body;
the wires are respectively connected to the upper end and the lower end of the non-contact sensing electric detection module;
the detection stage is connected with the non-contact induction electricity detection module through a lead;
the touch level is connected with the non-contact induction electricity-measuring module through a lead;
and the sealing cover is fixed on the outer side of the top of the detection stage.
Furthermore, the detection stage is arranged in the top of the top connecting frame, and the detection stage is positioned in the center of the wire clamping concave wheel at the two ends of the top connecting frame.
Furthermore, the left end and the right end of the top connecting frame are respectively and rotatably connected with a wire clamping concave wheel, the left end and the right end of the movable frame are respectively and rotatably connected with a wire clamping concave wheel, and the wire clamping concave wheels at the left end and the right end of the movable frame are positioned right above the wire clamping concave wheels at the left end and the right end of the top connecting frame.
Furthermore, the bottom of the main body is provided with a grab handle, and the touch stage is arranged in the front side of the grab handle.
Furthermore, two guide sliding holes are symmetrically formed in the top of the top connecting frame, two sliding rods are symmetrically formed in the bottom of the movable frame, and the sliding rods at the bottom of the movable frame are slidably connected into the guide sliding holes in the top connecting frame.
Furthermore, the top is connected with a screw rod in a rotating mode at the rear side of the frame, a screw hole is formed in the movable frame, the top of the screw rod is connected in the screw hole in a threaded mode, and the bottom end of the screw rod is connected with the driving shaft.
Further, even a bottom is the cavity form in the top, and the top has seted up fixed even hole respectively even bottom both sides even, and main part top sliding connection in the top even bottom, eight regulation even holes have been seted up to the equidistance in the main part top, and regulation even hole both ends are linked together with fixed even hole respectively to bolt through connection is in regulation even hole and fixed even hole.
Furthermore, the rear side of the main body is rotatably connected with a driving shaft, the upper end and the lower end of the driving shaft are respectively provided with a hexagonal inserting column and a hand wheel, a hexagonal inserting hole is formed in the bottom of the screw rod, and the hexagonal inserting column at the top end of the driving shaft is slidably connected into the hexagonal inserting hole in the bottom of the screw rod.
Furthermore, an embedded groove is formed in the main body, clamping claws are arranged at two ends of the embedded groove respectively, the non-contact sensing electricity measuring module is placed in the embedded groove, and the clamping claws are connected to two sides of the non-contact sensing electricity measuring module in a clamping mode respectively.
Compared with the prior art, the invention has the following beneficial effects:
1. the arrangement of the wire clamping concave wheels is beneficial to clamping the upper and lower groups of wire clamping concave wheels outside a cable to be subjected to troubleshooting, so that the top sealing cover of the detection stage is attached to the bottom side of the cable, and the upper and lower groups of wire clamping concave wheels move along the direction of the cable, thereby realizing the sequential diagnosis and troubleshooting operation of the whole cable line; the movable frame connected with the top of the top connecting frame can be adjusted in a lifting way according to the thickness degree of the cable, so that the spacing distance between the upper and lower groups of wire clamping concave wheels is changed, and the cable diagnosis and investigation requirements of cables with different specifications are better met; and the setting of cooperation screw rod and drive shaft drives the screw rod through the drive shaft and rotates in step to drive the adjustable shelf through the screw rod and move the regulation downwards, make the laminating of adjustable shelf both ends clamp line concave wheel at the cable top, the compactness of two sets of clamp line concave wheels and cable laminating about the guarantee, thereby the stability of the even frame of guarantee top and cable junction.
2. The main body is in sliding connection with the top connecting frame, so that the sliding adjustment of the top of the main body connected with the top connecting frame can be favorably carried out according to the height of the cable to be installed, the length of the device is increased, and the diagnosis and examination requirements of cables without height can be better met; and cooperation screw rod and drive shaft sliding connection's setting, when main part top even puts up sliding adjustment, drive shaft top hexagonal insert post sliding connection in the screw rod bottom, makes screw rod bottom and drive shaft remain to be connected the rotation all the time, and the guarantee drive shaft is to screw rod drive atress effect.
Drawings
FIG. 1 is a schematic front axial view of the present invention.
Fig. 2 is a rear axial view of the present invention.
Fig. 3 is a schematic view of the sliding connection structure of the main body and the top connecting frame of the invention.
FIG. 4 is a schematic view of the main body rear drive shaft connection of the present invention.
Fig. 5 is a schematic view of the connection structure of the rear side screw of the top connecting frame of the invention.
Fig. 6 is an axial view structural schematic diagram of the movable frame of the invention.
Fig. 7 is a schematic axial view of the diagnostic assembly of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a main body; 101. embedding a groove; 102. adjusting the connecting hole; 103. a claw; 104. a handle; 2. a top connecting frame; 201. fixing the connecting hole; 202. a guide slide hole; 3. a movable frame; 301. a slide bar; 302. a screw hole; 4. a wire clamping concave wheel; 5. a screw; 501. six-side jacks; 6. a drive shaft; 601. inserting a column with six edges; 602. a hand wheel; 7. a bolt; 8. a diagnostic component; 801. a non-contact sensing electrical module; 802. a wire; 803. a detection stage; 804. a touch level; 805. and (7) sealing the cover.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 7:
the invention provides an automatic diagnosis device for troubleshooting based on a power electronic circuit, which comprises a main body 1, a screw rod 5, a driving shaft 6 and a diagnosis component 8, wherein the main body is provided with a screw rod;
the top of the main body 1 is connected with the top connecting frame 2, and the movable frame 3 is connected with the top of the top connecting frame 2;
the bottom of the top connecting frame 2 is hollow, two sides of the bottom of the top connecting frame 2 are respectively provided with a fixed connecting hole 201, the top of the main body 1 is slidably connected into the bottom of the top connecting frame 2, eight adjusting connecting holes 102 are equidistantly arranged in the top of the main body 1, two ends of each adjusting connecting hole 102 are respectively communicated with the fixed connecting hole 201, and the bolts 7 are connected into the adjusting connecting holes 102 and the fixed connecting holes 201 in a penetrating manner, so that the top of the main body 1 connected to the top connecting frame 2 can be slidably adjusted according to the height of a cable to be installed, the length of the device is increased, and the requirements of cable diagnosis and investigation without height can be better met;
the screw rod 5 is connected to the rear side of the top connecting frame 2, and the top end of the screw rod 5 is connected with the movable frame 3;
the driving shaft 6 is connected with the screw 5;
the rear side of the main body 1 is rotatably connected with a driving shaft 6, the upper end and the lower end of the driving shaft 6 are respectively provided with a hexagonal inserting column 601 and a hand wheel 602, the bottom of the screw rod 5 is internally provided with a hexagonal inserting hole 501, the hexagonal inserting column 601 at the top end of the driving shaft 6 is slidably connected into the hexagonal inserting hole 501 at the bottom of the screw rod 5, the hexagonal inserting column 601 at the top end of the driving shaft 6 is slidably connected into the bottom of the screw rod 5 when the top connecting frame 2 at the top of the main body 1 is slidably adjusted, so that the bottom of the screw rod 5 and the driving shaft 6 are always connected and rotated, and the driving force effect of the driving shaft 6 on the screw rod 5 is ensured;
the diagnostic component 8 comprises;
a non-contact sensing electrical module 801 mounted inside the main body 1;
the wires 802 are respectively connected to the upper end and the lower end of the non-contact sensing electric module 801;
a probing stage 803 connected to the non-contact sensing electrical module 801 via a wire 802;
the touch stage 804 is connected with the non-contact sensing electric detection module 801 through a wire 802;
the sealing cover 805 is fixed on the outer side of the top of the detection stage 803, when the sealing cover 805 on the top of the detection stage 803 is in contact with a cable fault part, the hand of an operator is in contact with the touch stage 804 to form a loop, a bulb inside the non-contact sensing electricity-detecting module 801 is lightened, and a loudspeaker inside the non-contact sensing electricity-detecting module 801 gives out alarm sound to remind the operator;
the diagnostic component 8 is arranged in the main body 1, and the top end of the diagnostic component 8 is positioned in the top connecting frame 2;
the detection stage 803 is installed in the top of the top connecting frame 2, and the detection stage 803 is located in the center of the wire clamping concave wheel 4 at the two ends of the top connecting frame 2.
Wherein, the left and right ends of the top connecting frame 2 are respectively and rotatably connected with a wire clamping concave wheel 4, the left and right ends of the movable frame 3 are respectively and rotatably connected with a wire clamping concave wheel 4, and the wire clamping concave wheels 4 at the left and right ends of the movable frame 3 are positioned right above the wire clamping concave wheels 4 at the left and right ends of the top connecting frame 2; the upper and lower groups of wire clamping concave wheels 4 can be clamped outside a cable to be checked, so that the sealing cover 805 at the top of the detection stage 803 is attached to the bottom side of the cable, and the upper and lower groups of wire clamping concave wheels 4 move along the direction of the cable, thereby realizing the sequential diagnosis and checking operation of the whole cable line.
Wherein, the bottom of the main body 1 is provided with a grab handle 104, and the touch stage 804 is arranged in the front side of the grab handle 104; when an operator holds the handle 104 by hands, the thumb is pressed on the front side of the touch stage 804, so that the touch stage 804 and the human body form a loop, and the use is more humanized.
Wherein, the top of the top connecting frame 2 is symmetrically provided with two guiding sliding holes 202, the bottom of the movable frame 3 is symmetrically provided with two sliding rods 301, and the sliding rod 301 at the bottom of the movable frame 3 is slidably connected in the guiding sliding hole 202 at the top of the top connecting frame 2; can be according to the difference of cable thickness degree, to the 3 lift adjustment of the adjustable shelf that the even 2 tops of top are connected, change two sets of wire clamping concave wheels 4 interval distance from top to bottom, better be applicable to different specification cable diagnosis investigation demands.
Wherein, the rear side of the top connecting frame 2 is rotatably connected with a screw rod 5, a screw hole 302 is arranged in the movable frame 3, the top of the screw rod 5 is connected in the screw hole 302 in a threaded manner, and the bottom end of the screw rod 5 is connected with a driving shaft 6; drive screw rod 5 synchronous rotation through drive shaft 6 to drive adjustable shelf 3 through screw rod 5 and move down and adjust, make 3 both ends of adjustable shelf press from both sides the laminating of line concave wheel 4 at the cable top, two sets of compactness of pressing from both sides line concave wheel 4 and cable laminating about the guarantee, thereby guarantee top even frame 2 and cable junction's stability.
In another embodiment, an embedded groove 101 is formed in the main body 1, two ends of the embedded groove 101 are respectively provided with a clamping jaw 103, the non-contact sensing electrical module 801 is placed in the embedded groove 101, and the clamping jaws 103 are respectively connected to two sides of the non-contact sensing electrical module 801 in a clamping manner; the non-contact sensing electrical module 801 is fixed inside the main body 1 in a clamping connection mode, so that the non-contact sensing electrical module 801 is more convenient to disassemble and assemble, an operator can take out the non-contact sensing electrical module 801 inside the main body 1 regularly, and batteries inside the non-contact sensing electrical module 801 can be replaced.
The specific use mode and function of the embodiment are as follows:
when the cable connector is used, firstly, the top of the main body 1 connected to the top connecting frame 2 is adjusted in a sliding mode according to the height of a cable to be installed, and the length of the cable connector is increased; the hexagonal inserting column 601 at the top end of the driving shaft 6 is connected into the bottom of the screw rod 5 in a sliding manner, so that the bottom of the screw rod 5 and the driving shaft 6 are always connected and rotated, and the driving force effect of the driving shaft 6 on the screw rod 5 is guaranteed; according to the difference of the thickness degree of the cable, the screw 5 is driven to synchronously rotate by the driving shaft 6, the screw 5 drives the movable frame 3 to move downwards for adjustment, the spacing distance between the upper and lower groups of wire clamping concave wheels 4 is changed, the upper and lower groups of wire clamping concave wheels 4 are clamped outside the cable to be subjected to fault troubleshooting, and the sealing cover 805 is attached to the bottom side of the cable; an operator holds the handle 104 with hands to drive the device to move, a thumb is pressed on the front side of the touch stage 804, and the upper and lower groups of wire clamping concave wheels 4 move along the direction of the cable; when the sealing cover 805 on the top of the detection stage 803 is in contact with a cable fault part, the hand of an operator is in contact with the touch stage 804 to form a loop, a bulb inside the non-contact sensing electric module 801 is lightened, a loudspeaker inside the non-contact sensing electric module 801 gives out alarm sound to remind the operator, and the operator can judge the accurate cable fault part.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (5)
1. An automatic diagnosis device based on power electronic circuit troubleshooting usefulness characterized by: comprises a main body (1);
the top of the main body (1) is connected with the top connecting frame (2), and the movable frame (3) is connected with the top of the top connecting frame (2);
the screw (5) is connected to the rear side of the top connecting frame (2), and the top end of the screw (5) is connected with the movable frame (3);
a drive shaft (6), wherein the drive shaft (6) is connected with the screw (5);
the diagnosis component (8), the diagnosis component (8) is installed in the main body (1), and the top end of the diagnosis component (8) is positioned in the top connecting frame (2);
the left end and the right end of the top connecting frame (2) are respectively and rotatably connected with a wire clamping concave wheel (4), the left end and the right end of the movable frame (3) are respectively and rotatably connected with a wire clamping concave wheel (4), and the wire clamping concave wheels (4) at the left end and the right end of the movable frame (3) are positioned right above the wire clamping concave wheels (4) at the left end and the right end of the top connecting frame (2);
the top of the top connecting frame (2) is symmetrically provided with two guide sliding holes (202), the bottom of the movable frame (3) is symmetrically provided with two sliding rods (301), and the sliding rods (301) at the bottom of the movable frame (3) are slidably connected into the guide sliding holes (202) at the top of the top connecting frame (2);
the rear side of the top connecting frame (2) is rotatably connected with a screw rod (5), a screw hole (302) is formed in the movable frame (3), the top of the screw rod (5) is connected in the screw hole (302) in a threaded manner, and the bottom end of the screw rod (5) is connected with a driving shaft (6);
the bottom of the top connecting frame (2) is hollow, fixed connecting holes (201) are formed in two sides of the bottom of the top connecting frame (2) respectively, the top of the main body (1) is connected into the bottom of the top connecting frame (2) in a sliding mode, eight adjusting connecting holes (102) are formed in the top of the main body (1) at equal intervals, two ends of each adjusting connecting hole (102) are communicated with the corresponding fixed connecting hole (201), and the bolts (7) are connected into the adjusting connecting holes (102) and the fixed connecting holes (201) in a penetrating mode;
the rear side of the main body (1) is rotatably connected with a driving shaft (6), the upper end and the lower end of the driving shaft (6) are respectively provided with a hexagonal inserting column (601) and a hand wheel (602), a hexagonal inserting hole (501) is formed in the bottom of the screw rod (5), and the hexagonal inserting column (601) at the top end of the driving shaft (6) is slidably connected into the hexagonal inserting hole (501) in the bottom of the screw rod (5).
2. The automatic diagnosis device for troubleshooting on the power electronic circuit as claimed in claim 1 characterized in that: the diagnostic component (8) comprises;
a non-contact sensing electrical module (801), the non-contact sensing electrical module (801) being mounted inside the main body (1);
the conducting wires (802), the conducting wires (802) are respectively connected to the upper end and the lower end of the non-contact sensing electricity-detecting module (801);
the detection stage (803), the detection stage (803) is connected with the non-contact induction electricity-measuring module (801) through a lead (802);
the touch stage (804), the touch stage (804) is connected with the non-contact induction electricity-measuring module (801) through a lead (802);
and the sealing cover (805), wherein the sealing cover (805) is fixed on the outer side of the top of the detection stage (803).
3. The automatic diagnosis device for troubleshooting on the basis of the power electronic circuit as claimed in claim 2, characterized in that: the detection stage (803) is arranged in the top of the top connecting frame (2), and the detection stage (803) is positioned in the central part of the wire clamping concave wheel (4) at the two ends of the top connecting frame (2).
4. The automatic diagnosis device for troubleshooting on the basis of the power electronic circuit as claimed in claim 1, characterized in that: the bottom of the main body (1) is provided with a grab handle (104), and the touch stage (804) is installed in the front side of the grab handle (104).
5. The automatic diagnosis device for troubleshooting on the basis of the power electronic circuit as claimed in claim 1, characterized in that: the main body (1) is internally provided with an embedded groove (101), two ends of the embedded groove (101) are respectively provided with a clamping jaw (103), the non-contact sensing electricity-measuring module (801) is placed in the embedded groove (101), and the clamping jaws (103) are respectively clamped and connected to two sides of the non-contact sensing electricity-measuring module (801).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110761635.3A CN113484677B (en) | 2021-07-06 | 2021-07-06 | Automatic diagnosis device for troubleshooting of power electronic circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110761635.3A CN113484677B (en) | 2021-07-06 | 2021-07-06 | Automatic diagnosis device for troubleshooting of power electronic circuit |
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| CN113484677A CN113484677A (en) | 2021-10-08 |
| CN113484677B true CN113484677B (en) | 2023-01-10 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444397A (en) * | 1981-12-04 | 1984-04-24 | Senoh Kabushiki Kaisha | Adjusting device for a net pole |
| CN100488733C (en) * | 2007-07-31 | 2009-05-20 | 北华大学 | Arm hanging type high voltage transmission line detecting robot |
| CN205982517U (en) * | 2016-08-26 | 2017-02-22 | 山东科汇电力自动化股份有限公司 | Wireless power cable fault appearance of fixing a point |
| CN206649104U (en) * | 2017-03-19 | 2017-11-17 | 张涛 | Distribution line failure inspection device |
| CN108695764A (en) * | 2018-06-04 | 2018-10-23 | 郑全祥 | One kind holding telescopic power cable on-bne repair device |
| CN209821334U (en) * | 2018-12-17 | 2019-12-20 | 国网天津市电力公司 | Comprehensive fault positioning device for power distribution network line |
| CN211955700U (en) * | 2019-09-30 | 2020-11-17 | 中国电力科学研究院有限公司 | Insulated wire electroscope |
| CN212514660U (en) * | 2020-04-07 | 2021-02-09 | 深圳市高盛电力科技有限公司 | Height-adjustable's cable fault tester |
| CN212255534U (en) * | 2020-05-13 | 2020-12-29 | 南京新唐电力工程有限公司 | Positioning device for cable fault detection equipment |
| CN212433312U (en) * | 2020-05-21 | 2021-01-29 | 顾振豹 | Distribution lines trouble inspection device |
| CN212905228U (en) * | 2020-07-14 | 2021-04-06 | 曹晋鹏 | Detection device for coal mine cable fault |
| CN112490930A (en) * | 2020-11-25 | 2021-03-12 | 合肥飞豪通信科技有限公司 | Power cable maintenance equipment and use method thereof |
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