CN115825657A - Power distribution network line fault positioning instrument - Google Patents
Power distribution network line fault positioning instrument Download PDFInfo
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- CN115825657A CN115825657A CN202310153399.6A CN202310153399A CN115825657A CN 115825657 A CN115825657 A CN 115825657A CN 202310153399 A CN202310153399 A CN 202310153399A CN 115825657 A CN115825657 A CN 115825657A
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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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- Locating Faults (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention relates to the technical field of power failure detection, in particular to a power distribution network line fault locator, which comprises a shell, wherein the shell is suspended on a cable, a detection instrument is installed at the top end of the shell, and a travelling mechanism, a detection mechanism and an adjusting mechanism are sequentially arranged in the shell, wherein the travelling mechanism travels along the cable, the detection mechanism is used for positioning and detecting the cable, and the adjusting mechanism is used for adjusting the detection mechanism; the adjusting mechanism comprises a suspension bracket, an upper adjusting roller, a lower adjusting roller, an upper driving rod and a lower driving rod; the detection mechanism comprises an upper detection ring, a lower detection ring, an upper connecting rod and a lower connecting rod. According to the invention, by utilizing the transmission fit of the adjusting roller, the connecting rod and the swing rod structure, when a cable line inclines upwards or downwards, the detection distance between the upper detection ring or the lower detection ring and the cable can be adjusted according to the inclination state of the cable, and the distance vacated by the inclination of the cable is compensated, so that the self-adaptive adjustment of the detection distance of the detection piece is realized, and the detection accuracy is effectively improved.
Description
Technical Field
The invention relates to the technical field of power fault detection, in particular to a power distribution network line fault locator.
Background
The distribution network is an electric power network which receives electric energy from a transmission network or a regional power plant and distributes the electric energy to various users on site through distribution facilities or step by step according to voltage. The network consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators, accessory facilities and the like, and plays a role in distributing electric energy in a power network.
The fault detection mode of the power distribution network line is mainly characterized in that a detection mechanism is suspended on a cable, the detection mechanism moves on the cable to realize section-by-section detection of the cable, when the power distribution network line is far away, due to the gravity of a lead, the cable line inevitably sags and inclines to form a catenary shape, and when an existing fault locator is used for positioning detection on the inclined cable, the relative position between the detection point and the cable can deviate, so that the accuracy of detection and positioning is influenced.
Disclosure of Invention
The invention aims to provide a power distribution network line fault locator and aims to solve the technical problems.
The purpose of the invention can be realized by the following technical scheme:
a distribution network line fault locator comprises a shell which is suspended on a cable, wherein a detection instrument is installed at the top end of the shell, and a travelling mechanism which travels along the cable, a detection mechanism which performs positioning detection on the cable and an adjusting mechanism which adjusts the detection mechanism are sequentially arranged in the shell;
the adjusting mechanism comprises a vertical suspension support, an upper adjusting roller, a lower adjusting roller, an upper driving rod and a lower driving rod, the top of the vertical suspension support is rotatably connected with the shell and always keeps a vertical suspension state, supporting seats are fixedly connected above and below the inner walls of the left side and the right side of the vertical suspension support, a supporting rod vertically penetrates through each supporting seat, the upper adjusting roller and the lower adjusting roller are symmetrically arranged on the upper side and the lower side of a cable, the upper driving rod is positioned above the upper adjusting roller, the lower driving rod is positioned below the lower adjusting roller, two ends of the upper adjusting roller and two ends of the lower adjusting roller are fixedly connected with supporting plates, the upper driving rod and the lower driving rod are connected with one end of the corresponding supporting rod, the other end of the supporting rod is connected with the supporting plate, and the supporting seats are connected with the supporting plates through extrusion springs;
the detection mechanism comprises an upper detection ring, a lower detection ring, an upper connecting rod and a lower connecting rod, wherein the upper detection ring and the lower detection ring are symmetrically arranged on the upper side and the lower side of the cable, the upper detection ring is fixedly arranged in an upper support, the two ends of the upper support are respectively rotatably connected with one end of the upper connecting rod, and each end of the upper connecting rod is rotatably connected with one end of a first swing rod.
Through above technical scheme, running gear is used for driving the whole cable of advancing along the locater, the in-process of marcing, the cable passes between from last dancer rools and the lower dancer rools, when the cable downward sloping, the casing inclines along with the cable, and the dangling support keeps vertical owing to receiving self action of gravity, the cable of this moment downward sloping will upwards extrude the upper roller, the upper roller drives the lower carriage and detects ring rebound down through the transmission of second pendulum rod and lower connecting rod, thereby can compensate the interval that leads to and detect the ring vacation down because the cable slope, when the cable tilt up, the same reason, it can the rebound in order to compensate the slope interval to go up to detect the ring, thereby can realize the adjustment that detects the interval according to the tilt state of cable.
As a further scheme of the invention: the first swing rod is provided with a first movable groove, the second swing rod is provided with a second movable groove, the upper driving rod penetrates through the corresponding first movable groove, and the lower driving rod penetrates through the corresponding second movable groove.
Through above technical scheme, the in-process that the action force was exerted to corresponding pendulum rod to the actuating lever will remove in the activity inslot that corresponds to can normally drive the pendulum rod and realize the swing action, avoid appearing the swing process that structure interference influences the pendulum rod.
As a further scheme of the invention: the suspension type motor is characterized in that limiting supports are fixedly mounted on two sides inside the shell, limiting grooves are formed in the limiting supports, limiting shafts are fixedly connected to two sides of the suspension type support, and the limiting shafts are slidably mounted in the limiting grooves in a matched mode.
Through above technical scheme, take place the slope at the casing, the support that hangs down remains the vertical suspension state throughout, spacing axle can be along with the slope process of casing and do corresponding slip at the spacing inslot simultaneously, the spacing groove plays the effect of restraint restriction to spacing axle and the support that hangs down, when the extreme position at spacing axle motion spacing groove both ends, show that the casing has reached predetermined maximum inclination this moment, if exceed predetermined inclination, the support that hangs down will also incline through spacing axle, thereby avoid casing and the support that hangs down to bump.
As a further scheme of the invention: the top of the suspension bracket is provided with a suspension support shaft, and the suspension bracket is in running fit with the shell through the suspension support shaft.
As a further scheme of the invention: running gear includes fixed bolster, walking wheel, spacing round, drive gear and driving motor, fixed bolster fixed mounting is inside the casing, the both ends of walking wheel and spacing round all are connected with the fixed bolster rotation, driving motor sets up in fixed bolster one side, driving motor's output is connected with drive gear, the epaxial walking gear that is connected with of wheel of walking, drive gear and walking gear meshing tooth joint.
Through above technical scheme, driving motor drives drive gear rotatory, and drive gear drives the walking wheel through walking gear and rotates, and the walking wheel drives the whole cable of advancing along of casing to can realize the location testing process to cable run trouble.
As a further scheme of the invention: the upper and lower side of fixed bolster lateral wall connects the ear seat, it is connected with the pivot to rotate on the ear seat, go up connecting rod and lower connecting rod through pivot and the ear seat normal running fit that corresponds.
Through above technical scheme, go up the connecting rod and rotate through the pivot with lower connecting rod and install between the ear seat, after the effort that one end of last connecting rod or lower connecting rod received corresponding pendulum rod, go up the connecting rod or lower connecting rod will rotate around the pivot to adjust the interval between upper detection ring 41 or lower detection ring 42 and the cable.
As a further scheme of the invention: and cables sequentially penetrate between the upper adjusting roller and the lower adjusting roller, between the upper detection ring and the lower detection ring and between the travelling wheels and the limiting wheels.
As a further scheme of the invention: the upper detection ring and the lower detection ring are electrically connected with a detection instrument.
Through above technical scheme, go up and detect the ring down and can send detected signal to detecting instrument, handle analysis and record by detecting instrument, realize the automatic positioning of cable fault and detect.
The invention has the beneficial effects that:
(1) According to the invention, the upper adjusting roller and the lower adjusting roller are used for sensing the trend change of the cable line in real time, and meanwhile, through the transmission fit of the connecting rod and the swing rod structure, when the cable line inclines upwards or downwards, the detection distance between the upper detection ring or the lower detection ring and the cable can be adjusted according to the inclination state of the cable, so that the distance vacated due to the inclination of the cable is compensated, the self-adaptive adjustment of the detection distance of the detection piece is realized, and the detection accuracy is effectively improved;
(2) The invention utilizes the traveling mechanism to drive the shell to advance along the cable, and in the advancing process, the upper detection ring and the lower detection ring can send detection signals to the detection instrument, and the detection instrument processes, analyzes and records the detection signals, thereby realizing the automatic positioning detection of the cable line fault.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is an external structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the adjusting mechanism of the present invention;
FIG. 4 is a schematic view of the structure of the detecting mechanism of the present invention;
FIG. 5 is a schematic structural view of a traveling mechanism according to the present invention;
fig. 6 is a schematic view of the cable run in the present invention.
In the figure: 1. a housing; 2. detecting an instrument; 3. a traveling mechanism; 31. fixing a bracket; 32. a traveling wheel; 33. a limiting wheel; 34. a drive gear; 35. a traveling gear; 36. a drive motor; 37. an ear mount; 4. a detection mechanism; 41. an upper detection ring; 42. a lower detection ring; 43. an upper connecting rod; 44. a lower connecting rod; 45. an upper bracket; 46. a lower bracket; 47. a first swing link; 48. a second swing link; 481. a first movable slot; 5. an adjustment mechanism; 51. a hanging bracket; 511. a supporting seat; 512. a limiting shaft; 513. a suspended support shaft; 52. an upper regulating roller; 53. a lower regulating roller; 54. an upper drive rod; 55. a lower drive rod; 56. a support plate; 57. a support bar; 58. a compression spring; 59. a limiting bracket; 591. a limiting groove.
Detailed description of the preferred embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the invention relates to a distribution network line fault locator, which includes a casing 1 suspended on a cable, a detection instrument 2 installed at the top end of the casing 1, and a traveling mechanism 3 traveling along the cable, a detection mechanism 4 for positioning and detecting the cable, and an adjustment mechanism 5 for adjusting the detection mechanism 4, which are sequentially arranged in the casing 1.
As shown in fig. 3, the adjusting mechanism 5 includes a hanging bracket 51, an upper adjusting roller 52, a lower adjusting roller 53, an upper driving rod 54 and a lower driving rod 55, the top of the hanging bracket 51 is rotatably connected with the housing 1 and always keeps a vertical hanging posture, the upper and lower sides of the inner walls of the left and right sides of the hanging bracket 51 are fixedly connected with supporting seats 511, each supporting seat 511 is vertically provided with a supporting rod 57 in a penetrating manner, the upper adjusting roller 52 and the lower adjusting roller 53 are symmetrically arranged on the upper and lower sides of the cable, the upper driving rod 54 is arranged above the upper adjusting roller 52, the lower driving rod 55 is arranged below the lower adjusting roller 53, the two ends of the upper adjusting roller 52 and the lower adjusting roller 53 are fixedly connected with the supporting plate 56, the upper driving rod 54 and the lower driving rod 55 are connected with one end of the corresponding supporting rod 57, the other end of the supporting rod 57 is connected with the supporting plate 56, and the supporting seat 511 is connected with the supporting plate 56 through a pressing spring 58.
As shown in fig. 4, the detecting mechanism 4 includes an upper detecting ring 41, a lower detecting ring 42, an upper connecting rod 43 and a lower connecting rod 44, the upper detecting ring 41 and the lower detecting ring 42 are symmetrically disposed on the upper and lower sides of the cable, the upper detecting ring 41 is fixedly mounted in the upper bracket 45, two ends of the upper bracket 45 are respectively rotatably connected to one end of the upper connecting rod 43, the other end of each upper connecting rod 43 is rotatably connected to one end of a first swing link 47, the other end of the first swing link 47 is movably sleeved on the lower driving rod 55, the lower detecting ring 42 is fixedly mounted in the lower bracket 46, two ends of the lower bracket 46 are respectively rotatably connected to one end of the lower connecting rod 44, the other end of each lower connecting rod 44 is rotatably connected to one end of a second swing link 48, and the other end of the second swing link 48 is movably sleeved on the upper driving rod 54.
The traveling mechanism 3 is used for driving the whole locator to travel along a cable, in the traveling process, the cable penetrates through the space between the upper adjusting roller 52 and the lower adjusting roller 53, when the cable inclines downwards, the shell 1 inclines along with the cable, the suspended bracket 51 keeps vertical under the action of self gravity, the cable which inclines downwards at the moment extrudes the upper adjusting roller 52 upwards, the upper adjusting roller 52 drives the lower bracket 46 and the lower detection ring 42 to move upwards under the driving action of the second swing rod 48 and the lower connecting rod 44, the vacant space between the upper adjusting roller and the lower detection ring 42 caused by the inclination of the cable can be compensated, and when the cable inclines upwards, the upper detection ring 41 can move downwards to compensate the inclined space, and the detection space can be adjusted according to the inclined state of the cable.
It should be noted that, in a normal state, that is, when the cable is horizontal, no acting force is generated between the cable and the upper and lower adjusting rollers 52 and 53, and only when the cable is inclined, an acting force is applied to the upper and lower adjusting rollers 52 and 53, so that the displacement process of the upper and lower detecting rings 41 and 42 is performed synchronously with the inclination process of the cable all the time, and is not influenced by the inclination of the housing 1, and therefore when the housing 1 travels to the sag transition point on the inclined cable, the displacement process of the upper and lower detecting rings 41 and 42 changes synchronously along with the cable trend, thereby realizing the self-adaptive adjustment of the detecting distance of the detecting element, and effectively improving the detecting accuracy.
Further, a first movable groove 481 is arranged on the first swing link 47, a second movable groove is arranged on the second swing link 48, the upper driving rod 54 is inserted into the corresponding first movable groove 481, and the lower driving rod 55 is inserted into the corresponding second movable groove.
Wherein, the in-process that the action force was exerted to corresponding pendulum rod to the actuating lever will remove in the activity inslot that corresponds to can normally drive the pendulum rod and realize the swing action, avoid appearing the swing process that the structure interfered the influence pendulum rod.
Furthermore, limiting brackets 59 are fixedly mounted on two sides inside the housing 1, limiting grooves 591 are formed in the limiting brackets 59, limiting shafts 512 are fixedly connected to two sides of the hanging bracket 51, and the limiting shafts 512 are slidably mounted in the limiting grooves 591 in a matching mode.
When the housing 1 is inclined, the suspension bracket 51 is always kept in a vertical suspension state, meanwhile, the limit shaft 512 slides in the limit groove 591 correspondingly along with the inclination process of the housing 1, the limit groove 591 plays a role in limiting the limit shaft 512 and the suspension bracket 51, when the limit shaft 512 moves to the limit positions at the two ends of the limit groove 591, it is indicated that the housing 1 reaches the preset maximum inclination angle at the moment, and if the preset inclination angle is exceeded, the suspension bracket 51 is also inclined through the limit shaft 512, so that collision between the housing 1 and the suspension bracket 51 is avoided.
Further, a hanging support shaft 513 is provided on the top of the hanging bracket 51, and the hanging bracket 51 is rotatably fitted to the housing 1 via the hanging support shaft 513.
As shown in fig. 5, the traveling mechanism 3 includes a fixed bracket 31, a traveling wheel 32, a limiting wheel 33, a driving gear 34 and a driving motor 36, the fixed bracket 31 is fixedly installed inside the casing 1, both ends of the traveling wheel 32 and the limiting wheel 33 are rotatably connected with the fixed bracket 31, the driving motor 36 is arranged on one side of the fixed bracket 31, an output end of the driving motor 36 is connected with the driving gear 34, a wheel shaft of the traveling wheel 32 is connected with a traveling gear 35, and the driving gear 34 is meshed with the traveling gear 35.
Wherein, driving motor 36 drives drive gear 34 rotatory, and drive gear 34 drives walking wheel 32 through walking gear 35 and rotates, and walking wheel 32 drives the whole cable of advancing along of casing 1 to can realize the location testing process to cable run trouble.
Further, the upper and lower parts of the side wall of the fixing bracket 31 are connected with the ear seats 37, the ear seats 37 are rotatably connected with a rotating shaft, and the upper connecting rod 43 and the lower connecting rod 44 are rotatably matched with the corresponding ear seats 37 through the rotating shaft.
The upper link 43 and the lower link 44 are rotatably mounted between the ear seats 37 through a rotating shaft, and when one end of the upper link 43 or the lower link 44 is acted by a corresponding swing rod, the upper link 43 or the lower link 44 will rotate around the rotating shaft, so as to adjust the distance between the upper detection ring 41 or the lower detection ring 42 and the cable.
Further, as shown in fig. 6, the cables pass through between the upper and lower adjusting rollers 52 and 53, between the upper and lower detection rings 41 and 42, and between the traveling wheels 32 and the stopper wheels 33 in this order.
In this embodiment, the upper detection ring 41 and the lower detection ring 42 are electrically connected to the detection instrument 2. The upper detection ring 41 and the lower detection ring 42 can send detection signals to the detection instrument 2, and the detection instrument 2 processes, analyzes and records the detection signals, so that automatic positioning detection of cable faults is realized.
The working principle of the invention is as follows: in the using process, the driving motor 36 is started to drive the driving gear 34 to rotate, the driving gear 34 drives the traveling wheel 32 to rotate through the traveling gear 35, the traveling wheel 32 drives the whole shell 1 to move along the cable, the cable line is inclined due to the fact that the cable forms an arc due to self gravity, when the cable inclines downwards, the shell 1 inclines along with the cable, the suspension bracket 51 keeps vertical due to the effect of self gravity, the cable inclined downwards extrudes the upper adjusting roller 52 upwards, the upper adjusting roller 52 drives the lower bracket 46 and the lower detection ring 42 to move upwards through the transmission effect of the second swing rod 48 and the lower connecting rod 44, and therefore the distance between the lower bracket 46 and the lower detection ring 42, which is caused by the inclination of the cable, can be compensated; when the cable inclines upwards, similarly, the housing 1 inclines along with the cable, the suspension bracket 51 is kept vertical due to the action of self gravity, the cable inclined upwards will press the lower adjusting roller 53 downwards, and the lower adjusting roller 53 drives the upper bracket 45 and the upper detection ring 41 to move downwards through the transmission action of the first swing rod 47 and the upper connecting rod 43 so as to compensate the inclined distance, so that the adjustment of the detection distance can be realized according to the inclined state of the cable. Along with the process of the shell 1 advancing along the cable, the upper detection ring 41 and the lower detection ring 42 can send detection signals to the detection instrument 2, and the detection instrument 2 carries out processing analysis and recording, so that automatic positioning detection of cable line faults is realized.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The distribution network line fault locator is characterized by comprising a shell (1) which is arranged on a cable in a hanging mode, wherein a detection instrument (2) is installed at the top end of the shell (1), and a traveling mechanism (3) which travels along the cable, a detection mechanism (4) which performs positioning detection on the cable and an adjusting mechanism (5) which adjusts the detection mechanism (4) are sequentially arranged in the shell (1); the adjusting mechanism (5) comprises a hanging bracket (51), an upper adjusting roller (52), a lower adjusting roller (53), an upper driving rod (54) and a lower driving rod (55), the top of the hanging bracket (51) is rotatably connected with the shell (1) and always keeps a vertical hanging posture, supporting seats (511) are fixedly connected above and below the inner walls of the left side and the right side of the hanging bracket (51), a supporting rod (57) vertically penetrates through each supporting seat (511), the upper adjusting roller (52) and the lower adjusting roller (53) are symmetrically arranged on the upper side and the lower side of a cable, the upper driving rod (54) is positioned above the upper adjusting roller (52), the lower driving rod (55) is positioned below the lower adjusting roller (53), the two ends of the upper adjusting roller (52) and the lower adjusting roller (53) are fixedly connected with the supporting plate (56), the upper driving rod (54) and the lower driving rod (55) are connected with one end of the corresponding supporting rod (57), the other end of the supporting rod (57) is connected with the supporting plate (56), and the supporting seat (56) is connected with the supporting plate (58) through an extrusion spring; the detection mechanism (4) comprises an upper detection ring (41), a lower detection ring (42), an upper connecting rod (43) and a lower connecting rod (44), the upper detection ring (41) and the lower detection ring (42) are symmetrically arranged on the upper side and the lower side of a cable, the upper detection ring (41) is fixedly installed in an upper support (45), the two ends of the upper support (45) are respectively rotatably connected with one end of the upper connecting rod (43), each of the two ends of the upper connecting rod (43) is rotatably connected with one end of a first swing rod (47), the other end of the first swing rod (47) is movably sleeved on a lower driving rod (55), the lower detection ring (42) is fixedly installed in a lower support (46), the two ends of the lower support (46) are respectively rotatably connected with one end of the lower connecting rod (44), each of the other end of the lower connecting rod (44) is rotatably connected with one end of a second swing rod (48), and the other end of the second swing rod (48) is movably sleeved on an upper driving rod (54).
2. The distribution network line fault locator according to claim 1, wherein the first swing link (47) is provided with a first movable slot (481), the second swing link (48) is provided with a second movable slot, the upper driving rod (54) is inserted into the corresponding first movable slot (481), and the lower driving rod (55) is inserted into the corresponding second movable slot.
3. The distribution network line fault locator according to claim 2, wherein limiting brackets (59) are fixedly mounted on two sides inside the housing (1), limiting grooves (591) are formed in the limiting brackets (59), limiting shafts (512) are fixedly connected to two sides of the overhanging bracket (51), and the limiting shafts (512) are adapted to be slidably mounted in the limiting grooves (591).
4. The distribution network line fault locator according to claim 3, wherein a suspended support shaft (513) is arranged at the top of the suspended support (51), and the suspended support (51) is rotatably matched with the shell (1) through the suspended support shaft (513).
5. The distribution network line fault locator according to claim 1, wherein the traveling mechanism (3) comprises a fixed support (31), traveling wheels (32), a limiting wheel (33), a driving gear (34) and a driving motor (36), the fixed support (31) is fixedly installed inside the shell (1), two ends of each of the traveling wheels (32) and the limiting wheel (33) are rotatably connected with the fixed support (31), the driving motor (36) is arranged on one side of the fixed support (31), an output end of the driving motor (36) is connected with the driving gear (34), a traveling gear (35) is connected to a wheel shaft of each of the traveling wheels (32), and the driving gear (34) is meshed with the traveling gears (35).
6. The distribution network line fault locator according to claim 5, wherein the upper and lower parts of the side wall of the fixing support (31) are connected with lug seats (37), the lug seats (37) are rotatably connected with rotating shafts, and the upper connecting rods (43) and the lower connecting rods (44) are rotatably matched with the corresponding lug seats (37) through the rotating shafts.
7. The distribution network line fault locator according to claim 6, wherein cables pass through between the upper adjusting roller (52) and the lower adjusting roller (53), between the upper detection ring (41) and the lower detection ring (42), and between the traveling wheel (32) and the limiting wheel (33) in sequence.
8. The distribution network line fault locator according to claim 1, wherein the upper detection ring (41) and the lower detection ring (42) are electrically connected with the detection instrument (2).
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| CN202310153399.6A CN115825657B (en) | 2023-02-23 | 2023-02-23 | Power distribution network line fault positioning instrument |
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| CN202310153399.6A CN115825657B (en) | 2023-02-23 | 2023-02-23 | Power distribution network line fault positioning instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116381564A (en) * | 2023-06-02 | 2023-07-04 | 常州世博电气有限公司 | Medium-voltage ring main unit capable of automatically detecting fault points |
| CN117554587A (en) * | 2024-01-08 | 2024-02-13 | 湖南湘联电缆有限公司 | Power distribution network cable detection device |
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