CN211263668U - Power transmission line ground connection detection and fault location structure - Google Patents
Power transmission line ground connection detection and fault location structure Download PDFInfo
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- CN211263668U CN211263668U CN201922033238.5U CN201922033238U CN211263668U CN 211263668 U CN211263668 U CN 211263668U CN 201922033238 U CN201922033238 U CN 201922033238U CN 211263668 U CN211263668 U CN 211263668U
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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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Abstract
The utility model belongs to the technical field of transmission network real-time supervision and equipment or instrument, especially, relate to a transmission line ground connection detects and fault location structure. The transformer comprises a mounting box and an open-ended transformer arranged in the mounting box, wherein a binding groove and a mounting groove are dug in the upper end surface of the mounting box, the cross section of the binding groove is semicircular and extends from front to back, fixing screw holes are formed in two sides of the rear end of the binding groove, and a clamp is connected to the fixing screw holes through bolts; the transformer installation shell comprises an upper shell, a lower shell and a fixing plate, the bottom of the lower shell protrudes downwards to form a connecting portion, a sliding groove and a connecting hole are formed in the connecting portion, and a sliding block is installed at the bottom of the lower shell through a bolt. The utility model discloses compact structure, it is small, have self-adaptation ability, can be convenient install on cables such as all kinds of downleads of ground and underground, structural accuracy holding capacity is high, long service life.
Description
Technical Field
The utility model belongs to the technical field of transmission network real-time supervision and equipment or instrument, especially, relate to a transmission line ground connection detects and fault location structure.
Background
In the process of power transmission network construction planning, for important key node equipment, such as transformers, distribution transformers or power distribution cabinets, which need to be protected against electric leakage or lightning to avoid instrument equipment damage, functional failure or contact accidents caused by lightning or current leakage, the most common and effective method is to connect grounding cables to each key equipment or node, which has become a necessary protection measure for many facilities or structures at present. With the development of power grid intellectualization, unmanned remote data collection is realized, power grid inspection monitoring becomes a new development trend, which is taken as a key factor for considering the use state of key equipment or nodes or monitoring the running state of a power grid in thunder and lightning weather, and the real-time monitoring of each grounding node to complete grounding detection and fault location is the basis for completing various power grid inspection maintenance work, so that a plurality of positioning devices special for completing power transmission line grounding detection and fault appear on the market, and generally comprise mounting boxes packaged with various types of circuits, mutual inductors and other on-line detection or power taking structures. For a buried downlead which is partially below the ground, the device will also be buried together in the ground.
The existing problem is that, because the device generally adopts compact encapsulation and fixed, relative position is fixed and the space is narrow and small between each part and the structure, the installation is used inconveniently, and the influence that the downlead warp and tensile has been ignored, because under a lot of circumstances, the downlead can be direct with the cable or the structure lug connection of atress, because cable or structure atress take place to incline or when warping, can arouse the deformation and the displacement of downlead simultaneously, and fix respectively that the installation box part on downlead or downlead and other fixed knot construct can produce the displacement with the mutual-inductor part, adopt traditional fixed mode can lead to the friction aggravation between the structure after using a period until the structural damage, the structure of separately setting then can lead to naked wire, suffer the destruction easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compact structure can reduce the data cable by the at utmost and expose, has self-adaptation regulation simultaneously, prevents that friction from destroying between mutual-inductor, mounting box and the downlead, improves life's power transmission line ground connection detection and fault location structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
A power transmission line grounding detection and fault positioning structure comprises a mounting box 1 and an open-ended mutual inductor 2 arranged in the mounting box, wherein a binding groove 1a and a mounting groove 1b which are semicircular in cross section and extend from front to back are dug in the upper end surface of the mounting box 1, and the mounting groove 1b is positioned at the front end of the binding groove 1a and is communicated with the binding groove 1 a; the bottom of the mounting groove 1b is provided with two limiting strips 1c parallel to the extending direction of the binding groove 1a, and a strip-shaped hole 1d arranged along the extending direction of the binding groove 1a is formed between the two limiting strips 1 c; fixing screw holes are formed in two sides of the rear end of the binding groove 1a, and a clamp 9a is connected to the fixing screw holes through bolts;
the transformer mounting structure is characterized by further comprising a transformer mounting shell, wherein the transformer mounting shell comprises an upper shell 2a, a lower shell 2b and a fixing plate 2c, the upper shell 2a and the lower shell 2b are in semi-arc-shaped hollow shell structures, connecting arms 2d are arranged at two ends of the upper shell 2a and the lower shell 2b, and the connecting arms on the upper shell 2a and the lower shell 2b are connected or clamped through bolts; the rear side openings of the upper case 2a and the lower case 2 b; the rear side of the connecting arm on the upper shell 2a and/or the lower shell 2b is provided with an inner connecting hole 2e, the fixing plate comprises two Y-shaped plates, and each Y-shaped plate is composed of a semicircular arc-shaped clamping and connecting plate 2f and a connecting plate 2g extending outwards from the bottom of an arc; a protruding part 2h which can be embedded into the rear side openings of the upper shell 2a and the lower shell 2b is arranged on the front end face of the clamping plate 2f, an outer connecting hole 2j corresponding to the inner connecting hole 2e is arranged on the connecting plate 2g, and the fixing plate is connected with the transformer mounting shell through a bolt;
Based on aforementioned structure, the utility model discloses a power transmission line ground connection detects and fault location device when guaranteeing the structural function of compact completion, make the mutual-inductor improve the flexibility ratio, the drawing down line warp tensile lead to be located between mounting box and the mutual-inductor structure cable length change can carry out the self-adaptation matching, reduce in the long-term use, cable length changes stress and the deformation that arouses repeatedly, the isolation protection ability of mutual-inductor has been improved through the structure of half embedding simultaneously, especially through the device of buryying formula installation, can effectively prevent the hindrance of materials such as the earth of mutual-inductor both sides, in long-term use, the mounting groove structure of mounting box bottom can form the effect that the catchment erodees after buryying the underground, utilize rivers to wash away mounting box bottom earth, prevent silt and block up.
The further improvement and optimization of the power transmission line grounding detection and fault positioning structure further comprises that the front end surface of the mounting box 1 is provided with a mounting screw hole 1e which penetrates through the mounting groove 1b and extends to the rear side wall surface of the mounting groove 1b, and a long screw 9b is arranged in the mounting screw hole 1 e; the supporting block 4 is of a strip-shaped structure with an L-shaped section, a through hole 4a corresponding to the installation screw hole 1e is formed in the horizontal part of the supporting block 4, the supporting block 4 is connected into the installation groove 1b through the installation screw hole 1e and the through hole 4a by a long screw 9b, and the vertical part of the supporting block 4 abuts against the inner wall of the installation groove 1 b; the upper end surface of the horizontal part of the supporting block 4 is a plane, and the connecting arm of the lower shell 2b is propped against the L-shaped groove of the supporting block 4.
Through further improvement, the fixing effect of the two sides of the mutual inductor can be improved, the balance in hands of the two sides of the mutual inductor is ensured, excessive inclination or shaking is prevented, and meanwhile, the strength of the mounting box is improved; when the transformer is installed in an embedded mode, shielding structures are formed on two sides of the transformer, sediment leakage is reduced to a certain degree, the protection and isolation effect is improved, and blocking is prevented.
The further improvement and optimization of the power transmission line grounding detection and fault positioning structure further comprises that a plurality of adjusting parts 2p are arranged on the front side of the mutual inductor installation shell in an annular array, adjusting screw holes extending towards the central shaft of the mutual inductor are formed in the adjusting parts 2p, and adjusting screws 9c are arranged in the adjusting screw holes; the bottom of the mounting box 1 is provided with an operation hole 1f corresponding to the adjusting screw hole.
The adjusting parts and the adjusting screws are arranged in an array, the end parts of the screws are clamped into the gaps of the cables, the fixing effect can be improved, the down lead is prevented from slipping, and the bottom operating holes facilitate the tightening and loosening operation of the screws; when the formula of buryying is installed, the auxiliary outlet simultaneously of handle hole utilizes the infiltration to take away the silt that probably gathers in the mounting groove etc..
The further improvement and optimization of the aforementioned power transmission line grounding detection and fault location structure further includes that one end of the binding groove 1a facing the mounting groove 1b is provided with a groove 1 g.
The installation crevasse provides the clearance interval that removes, prevents that the cable warp the in-process, and the mutual-inductor is direct and mounting groove inner wall hard contact, forms the slope drainage face simultaneously, and the guide is restrainted the infiltration among the groove 1a and is got into in the mounting groove.
The further improvement and optimization of the power transmission line grounding detection and fault positioning structure further comprises that the mounting box 1 is of a hollow structure, the rear side of the mounting box is open, and a sealing plate 5 is arranged at the opening.
The utility model discloses compact structure, it is small, have self-adaptation ability, can be convenient install on cables such as all kinds of downleads of ground and underground, structural accuracy holding capacity is high, long service life.
Drawings
Fig. 1 is a front view of a transmission line ground detection and fault location device;
fig. 2 is an assembly view of a transmission line ground detection and fault location device;
fig. 3 is a schematic view of a mounting box in the transmission line ground detection and fault location device;
fig. 4 is a schematic diagram of a transformer in the transmission line ground detection and fault location device.
Detailed Description
The present invention will be described in detail with reference to the following specific examples.
As shown in fig. 1 and 2, the utility model mainly provides a power transmission line ground connection detects and fault location structure, including mounting box 1, set up opening mutual-inductor 2 in the mounting box, wherein the mutual-inductor gathers the current state of the downlead that awaits measuring through electromagnetic induction's mode.
Specifically, as shown in fig. 3, a binding groove 1a and a mounting groove 1b, which have semicircular cross sections and extend from front to back, are dug in the upper end surface of the mounting box 1, and the mounting groove 1b is located at the front end of the binding groove 1a and is communicated with the binding groove 1 a; the bottom of the mounting groove 1b is provided with two limiting strips 1c parallel to the extending direction of the binding groove 1a, and a strip-shaped hole 1d arranged along the extending direction of the binding groove 1a is formed between the two limiting strips 1 c; fixing screw holes are formed in two sides of the rear end of the binding groove 1a, and a clamp 9a is connected to the fixing screw holes through bolts; the mounting box 1 is a hollow structure, the rear side of the mounting box is open, a sealing plate 5 is arranged at the opening, and a groove 1g is arranged at one end of the binding groove 1a facing the mounting groove 1 b.
In this embodiment, the front end surface of the mounting box 1 is provided with a mounting screw hole 1e penetrating through the mounting groove 1b and extending to the rear side wall surface of the mounting groove 1b, and a long screw 9b is arranged in the mounting screw hole 1 e;
the transformer mounting structure further comprises a transformer mounting shell, as shown in fig. 4, the transformer mounting shell comprises an upper shell 2a, a lower shell 2b and a fixing plate 2c, the upper shell 2a and the lower shell 2b are semi-arc hollow shell structures, connecting arms 2d are arranged at two ends of the upper shell 2a and the lower shell 2b, and the connecting arms on the upper shell 2a and the lower shell 2b are connected or clamped through bolts; the rear side openings of the upper case 2a and the lower case 2 b; the rear side of the connecting arm on the upper shell 2a and/or the lower shell 2b is provided with an inner connecting hole 2e, the fixing plate comprises two Y-shaped plates, and each Y-shaped plate is composed of a semicircular arc-shaped clamping and connecting plate 2f and a connecting plate 2g extending outwards from the bottom of an arc; a protruding part 2h which can be embedded into the rear side openings of the upper shell 2a and the lower shell 2b is arranged on the front end face of the clamping plate 2f, an outer connecting hole 2j corresponding to the inner connecting hole 2e is arranged on the connecting plate 2g, and the fixing plate is connected with the transformer mounting shell through a bolt;
a plurality of adjusting parts 2p are arranged on the front side of the mutual inductor mounting shell in an annular array, adjusting screw holes extending towards the central axis of the mutual inductor are formed in the adjusting parts 2p, and adjusting screws 9c are arranged in the adjusting screw holes; the bottom of the mounting box 1 is provided with an operation hole 1f corresponding to the adjusting screw hole.
The supporting block 4 is of a strip-shaped structure with an L-shaped section, a through hole 4a corresponding to the installation screw hole 1e is formed in the horizontal part of the supporting block 4, the supporting block 4 is connected into the installation groove 1b through the installation screw hole 1e and the through hole 4a by a long screw 9b, and the vertical part of the supporting block 4 abuts against the inner wall of the installation groove 1 b; the upper end surface of the horizontal part of the supporting block 4 is a plane, and the connecting arm of the lower shell 2b is propped against the L-shaped groove of the supporting block 4.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. A power transmission line grounding detection and fault location structure comprises a mounting box (1) and an open mutual inductor (2) arranged in the mounting box, and is characterized in that,
the upper end face of the mounting box (1) is dug with a binding groove (1a) and a mounting groove (1b) with semicircular sections extending from front to back, and the mounting groove (1b) is positioned at the front end of the binding groove (1a) and communicated with the binding groove (1 a); the bottom of the mounting groove (1b) is provided with two limiting strips (1c) parallel to the extending direction of the binding groove (1a), and a strip-shaped hole (1d) arranged along the extending direction of the binding groove (1a) is formed between the two limiting strips (1 c); fixing screw holes are formed in two sides of the rear end of the binding groove (1a), and a clamp (9a) is connected to the fixing screw holes through bolts;
the transformer mounting structure is characterized by further comprising a transformer mounting shell, wherein the transformer mounting shell comprises an upper shell (2a), a lower shell (2b) and a fixing plate (2c), the upper shell (2a) and the lower shell (2b) are of semi-arc-shaped hollow shell structures, connecting arms (2d) are arranged at two ends of the upper shell (2a) and the lower shell (2b), and the connecting arms on the upper shell (2a) and the lower shell (2b) are connected or clamped through bolts; the rear sides of the upper case (2a) and the lower case (2b) are open; the rear side of the connecting arm on the upper shell (2a) and/or the lower shell (2b) is provided with an inner connecting hole (2e), the fixing plate comprises two Y-shaped plates, and each Y-shaped plate consists of a semi-arc-shaped clamping plate (2f) and a connecting plate (2g) which extends outwards from the bottom of the arc; the front end face of the clamping plate (2f) is provided with a protruding part (2h) which can be embedded into the rear side openings of the upper shell (2a) and the lower shell (2b), the connecting plate (2g) is provided with an outer connecting hole (2j) corresponding to the inner connecting hole (2e), and the fixing plate is connected with the transformer mounting shell through a bolt;
the bottom of lower casing (2b) is outstanding formation connecting portion downwards, be equipped with two sliding tray (2k) relative with spacing (1c) on the connecting portion, be equipped with down connecting hole (2m) in the middle of two sliding tray (2k), sliding block (3) are installed through the bolt in lower casing (2b) bottom, sliding block (3) upper end is equipped with can block into sliding strip (3a) in bar hole (1d), the lower extreme is equipped with bottom plate (3b), installation from mounting box (1) bottom is followed in sliding block (3), and connecting portion are hugged closely after sliding strip (3a) pass in bar hole (1d), be equipped with on sliding block (3) and run through sliding strip (3a) and bottom connecting hole (3c) that correspond with lower connecting hole (2 m).
2. A transmission line grounding detection and fault location structure according to claim 1, characterized in that the front end face of the mounting box (1) is provided with a mounting screw hole (1e) penetrating through the mounting groove (1b) and extending to the rear side wall face of the mounting groove (1b), and a long screw (9b) is arranged in the mounting screw hole (1 e);
the supporting block (4) is of an L-shaped strip structure, a through hole (4a) corresponding to the installation screw hole (1e) is formed in the horizontal part of the supporting block (4), the supporting block (4) is connected into the installation groove (1b) through the installation screw hole (1e) and the through hole (4a) by a long screw (9b), and the vertical part of the supporting block (4) abuts against the inner wall of the installation groove (1 b); the upper end surface of the horizontal part of the supporting block (4) is a plane, and the connecting arm of the lower shell (2b) is propped against the L-shaped groove of the supporting block (4).
3. A power transmission line grounding detection and fault location structure according to claim 1, characterized in that the front side of the transformer mounting case is provided with a plurality of adjusting parts (2p) in a circular array, the adjusting parts (2p) are provided with adjusting screw holes extending towards the central axis of the transformer, and the adjusting screw holes are internally provided with adjusting screws (9 c); the bottom of the mounting box (1) is provided with an operation hole (1f) corresponding to the adjusting screw hole.
4. A transmission line ground detection and fault location structure according to claim 1, characterized in that the end of the bounding groove (1a) facing the mounting groove (1b) is provided with a bevel (1 g).
5. A transmission line ground detection and fault location structure according to claim 1, characterized in that said mounting box (1) is hollow and open at its rear side, and a sealing plate (5) is provided at the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033238.5U CN211263668U (en) | 2019-11-22 | 2019-11-22 | Power transmission line ground connection detection and fault location structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033238.5U CN211263668U (en) | 2019-11-22 | 2019-11-22 | Power transmission line ground connection detection and fault location structure |
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| Publication Number | Publication Date |
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| CN211263668U true CN211263668U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922033238.5U Active CN211263668U (en) | 2019-11-22 | 2019-11-22 | Power transmission line ground connection detection and fault location structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253077A (en) * | 2021-06-30 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Sound-vibration composite MEMS sensor for detecting partial discharge of cable |
-
2019
- 2019-11-22 CN CN201922033238.5U patent/CN211263668U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253077A (en) * | 2021-06-30 | 2021-08-13 | 广东电网有限责任公司中山供电局 | Sound-vibration composite MEMS sensor for detecting partial discharge of cable |
| CN113253077B (en) * | 2021-06-30 | 2021-10-22 | 广东电网有限责任公司中山供电局 | Sound-vibration composite MEMS sensor for detecting partial discharge of cable |
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