CN217385785U - Ground fault diagnosis device for power distribution network - Google Patents
Ground fault diagnosis device for power distribution network Download PDFInfo
- Publication number
- CN217385785U CN217385785U CN202221007710.3U CN202221007710U CN217385785U CN 217385785 U CN217385785 U CN 217385785U CN 202221007710 U CN202221007710 U CN 202221007710U CN 217385785 U CN217385785 U CN 217385785U
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- Prior art keywords
- fault diagnosis
- ground fault
- fixing
- distribution network
- electric
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 71
- 210000000080 chela (arthropods) Anatomy 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 9
- 239000005060 rubber Substances 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 229910001095 light aluminium alloy Inorganic materials 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 5
- 206010057071 Rectal tenesmus Diseases 0.000 description 2
- 208000012271 tenesmus Diseases 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a ground fault diagnosis device for a power distribution network, the upper surface of a mounting plate is provided with a ground fault diagnosis clamp, the output end of the ground fault diagnosis clamp is electrically connected with the input end of a ground fault diagnosis instrument, the ground fault diagnosis instrument is provided with a built-in power supply, the movable plates can be driven to move along the slide rod by the rotation of the fixed screw rod, and by enabling the two movable plates to do relative motion, thereby the electric wire can be clamped between the two pieces of insulating rubber, and the fixing frame can be arranged on the electric wire, thereby dispersing stress points, the mounting plate can be pushed to move by the electric push rod, the ground fault diagnosis clamp can be driven to move by the mounting plate, thereby can make ground fault diagnosis pincers overlap joint in the different positions of electric wire, through setting up a plurality of push pedals and electric putter to can be used for guaranteeing that ground fault diagnosis pincers can remove sufficient distance.
Description
Technical Field
The utility model relates to a power grid fault diagnosis technical field specifically is a ground fault diagnostic device for distribution network.
Background
The distribution network is a power network which receives electric energy from a transmission network or a regional power plant, distributes the electric energy to various users on site or step by step according to voltage through distribution facilities, and consists of overhead lines, cables, towers, distribution transformers, isolating switches, reactive compensators, a plurality of accessory facilities and the like, the network plays a role of distributing the electric energy in the power network, the distribution network generally adopts closed-loop design and open-loop operation, the structure of the distribution network is radial, the closed-loop structure is adopted to improve the flexibility and the power supply reliability of the operation, the open-loop operation is used to limit short-circuit fault current and prevent a breaker from exceeding the breaking capacity to explode on one hand, and the fault coverage is controlled on the other hand, the fault power failure range is prevented from being expanded, the distribution network has the characteristics of multiple voltage levels, complex network structure, various equipment types, multiple operation points, wide range, relatively poor safety environment and the like, therefore, the safety risk factors of the power distribution network are relatively more, in addition, the power distribution network has the function of providing power energy sources for various users, higher requirements are put forward on the safe and reliable operation of the power distribution network, a power distribution network ground fault diagnosis device is needed when the power distribution network is subjected to ground fault diagnosis, in the prior art, a ground fault diagnosis clamp is generally directly lapped on a wire, then the ground fault diagnosis is carried out through a ground fault diagnosis instrument, the conventional ground fault diagnosis clamp is inconvenient to move on the wire, and the continuous diagnosis of the wire cannot be carried out.
SUMMERY OF THE UTILITY MODEL
In view of the problems in the prior art, the utility model discloses a ground fault diagnosis device for a power distribution network, which adopts the technical proposal that the ground fault diagnosis device comprises three fixing frames, the three fixing frames are connected through a connecting plate, the lower surface of the fixing frame positioned at the left side is provided with a placing box, a ground fault diagnosis instrument is arranged in the placing box, the fixing frames are provided with slide bars, the front side plate and the rear side plate of the fixing frame are respectively provided with a fixing screw rod, the fixing screw rods are in threaded connection with the fixing frames, the inner ends of the fixing screw rods are respectively provided with a movable plate, the fixing screw rods are rotatably connected with the movable plates, the lower ends of the movable plates are in sliding connection with the slide bars, the inner walls of the movable plates are respectively provided with insulating rubber, the lower surface of the fixing frame is provided with a fixing plate, the right side of the fixing plate is provided with three push plates, and the right side walls of the fixing plate and the three push plates are respectively provided with two electric push rods, the extension ends of the electric push rods are fixedly connected with the adjacent push plates, a mounting plate is arranged between the extension ends of the two electric push rods on the right side, the upper surface of the mounting plate is provided with a ground fault diagnosis clamp, the output end of the ground fault diagnosis clamp is electrically connected with the input end of a ground fault diagnosis instrument, the ground fault diagnosis instrument is provided with a built-in power supply, the side wall of the placing box is provided with a single chip microcomputer, the input end of the single chip microcomputer is electrically connected with the output end of an external power supply, the output end of the single chip microcomputer is electrically connected with the input end of the electric push rods, the ground fault diagnosis can be carried out through the ground fault diagnosis instrument, the movable plates can be driven to move along the slide rods through the rotation of the fixed screw rods by rotating the fixed screw rods, and the electric wires can be clamped between the two pieces of insulating rubber by enabling the two movable plates to do relative motion, thereby can install the mount on the electric wire, through setting up three mount to can disperse the stress point, avoid can weighing down bad electric wire, can promote the mounting panel through electric putter and remove, can drive earth fault diagnosis pincers through the mounting panel and remove, thereby can make earth fault diagnosis pincers overlap joint in the different positions of electric wire, through setting up a plurality of push pedals and electric putter, thereby can be used for guaranteeing that earth fault diagnosis pincers can remove sufficient distance.
As an optimal technical scheme of the utility model, mount, connecting plate and mounting panel are made by light aluminum alloy, and mount, connecting plate and mounting panel are all done the fretwork and are handled, can be used for alleviateing the weight of whole device, avoid damaging the electric wire.
As an optimized technical scheme of the utility model, still include the connecting rod, the connecting rod is two, and all arranges the lateral wall of mounting panel in, pegs graft between mounting panel and the mount, can be used for avoiding the mounting panel can take place the tenesmus.
As an optimized technical scheme of the utility model, still include remote control signal receiver, remote control signal receiver arranges the lateral wall of placing the case in, and the input of singlechip is connected to remote control signal receiver's output electricity, can be used for conveniently carrying out remote control.
As a preferred technical scheme of the utility model, still include backup battery, backup battery arranges the lateral wall of placing the case in, and the input of singlechip is connected to backup battery's output electricity, can be used for carrying out remote power supply when not having external power source.
The utility model has the advantages that: the utility model can carry out the diagnosis of the earth fault by overlapping the earth fault diagnosis clamp on the electric wire and then using the earth fault diagnosis instrument, by rotating the fixing screw, the movable plates can be driven to move along the slide bar by the rotation of the fixing screw, and by making the two movable plates move relatively, thereby the electric wire can be clamped between the two pieces of insulating rubber, and the fixing frame can be arranged on the electric wire, thereby dispersing stress points, avoiding the wire from being damaged by falling, pushing the mounting plate to move by the electric push rod, driving the ground fault diagnosis clamp to move by the mounting plate, thereby the grounding fault diagnosis clamp can be lapped on different positions of the electric wire, and by arranging a plurality of push plates and electric push rods, therefore, the grounding fault diagnosis clamp can be moved for a sufficient distance, and continuous diagnosis of the electric wire can be conveniently carried out.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic view of the back structure of the present invention.
In the figure: the device comprises a fixing frame 1, a connecting plate 2, a fixing unit 3, a fixing screw 31, a movable plate 32, insulating rubber 33, a movable unit 4, a fixed plate 41, an electric push rod 42, a push plate 43, a mounting plate 44, a connecting rod 5, a placing box 6, a ground fault diagnosis instrument 7, ground fault diagnosis pliers 8, a singlechip 9, a remote control signal receiver 10 and a standby battery 11.
Detailed Description
Example 1
As shown in fig. 1 to 3, the utility model discloses a ground fault diagnosis device for a power distribution network, which adopts the technical scheme that the ground fault diagnosis device comprises three fixing frames 1, wherein the three fixing frames 1 are connected through a connecting plate 2, a placing box 6 is arranged on the lower surface of the left fixing frame 1, a ground fault diagnosis instrument 7 is arranged in the placing box 6, sliding rods are arranged on the fixing frames 1, fixing screws 31 are respectively arranged on the front side plate and the rear side plate of the fixing frame 1, the fixing screws 31 are in threaded connection with the fixing frames 1, movable plates 32 are respectively arranged at the inner ends of the fixing screws 31, the fixing screws 31 are rotatably connected with the movable plates 32, the lower ends of the movable plates 32 are in sliding connection with the sliding rods, insulating rubber 33 is respectively arranged on the inner walls of the movable plates 32, a fixing plate 41 is arranged on the lower surface of the fixing frame 1, three push plates 43 are arranged on the right side of the fixing plate 41, two electric push rods 42 are respectively arranged on the right side walls of the fixing plate 41 and the three push plates 43, the extending end of the electric push rod 42 is fixedly connected with the adjacent push plate 43, a mounting plate 44 is arranged between the extending ends of the two electric push rods 42 positioned on the right side, the upper surface of the mounting plate 44 is provided with a ground fault diagnosis clamp 8, the output end of the ground fault diagnosis clamp 8 is electrically connected with the input end of a ground fault diagnosis instrument 7, the ground fault diagnosis instrument 7 is provided with a built-in power supply, the side wall of the placing box 6 is provided with a single chip microcomputer 9, the input end of the single chip microcomputer 9 is electrically connected with the output end of an external power supply, the output end of the single chip microcomputer 9 is electrically connected with the input end of the electric push rod 42, the ground fault diagnosis clamp 8 is lapped on a wire, then the ground fault diagnosis can be carried out through the ground fault diagnosis instrument 7, the fixing screw rod 31 is rotated, the movable plate 32 can be driven to move along the slide rod through the rotation of the fixing screw rod 31, the two movable plates 32 make relative movement, thereby the wire can be clamped between the two insulating rubbers 33, thereby can install mount 1 on the electric wire, through setting up three mount 1, thereby can disperse the stress point, avoid can weighing down bad electric wire, can promote mounting panel 44 through electric putter 42 and remove, can drive earth fault diagnosis pincers 8 through mounting panel 44 and remove, thereby can make the different positions of earth fault diagnosis pincers 8 overlap joint at the electric wire, through setting up a plurality of push pedal 43 and electric putter 42, thereby can be used for guaranteeing that earth fault diagnosis pincers 8 can remove sufficient distance, thereby can conveniently carry out continuous diagnosis to the electric wire.
As the utility model discloses an optimal technical scheme, mount 1, connecting plate 2 and mounting panel 44 are made by light aluminum alloy, and the fretwork is all done to mount 1, connecting plate 2 and mounting panel 44, can be used for alleviateing the weight of whole device, avoids damaging the electric wire.
As an optimized technical scheme of the utility model, still include connecting rod 5, connecting rod 5 is two, and all arranges the lateral wall of mounting panel 44 in, pegs graft between mounting panel 44 and the mount 1, can be used for avoiding mounting panel 44 to take place the tenesmus through connecting rod 5.
As an optimal technical scheme of the utility model, still include remote control signal receiver 10, remote control signal receiver 10 arranges the lateral wall of placing case 6 in, and singlechip 9's input is connected to remote control signal receiver 10's output electricity, can be used for conveniently carrying out remote control through remote control signal receiver 10.
As a preferred technical scheme of the utility model, still include backup battery 11, backup battery 11 arranges the lateral wall of placing case 6 in, and singlechip 9's input is connected to backup battery 11's output electricity, can be used for carrying out remote power supply when not having external power source through backup battery 11.
The utility model discloses a theory of operation: the ground fault diagnosis clamp 8 is lapped on a wire, then the ground fault diagnosis can be carried out through the ground fault diagnosis instrument 7, the fixing screw 31 is rotated, the movable plates 32 can be driven to move along the sliding rod through the rotation of the fixing screw 31, the wire can be clamped between the two insulating rubbers 33 through the relative movement of the two movable plates 32, so that the fixing frame 1 can be arranged on the wire, stress points can be dispersed through the arrangement of the three fixing frames 1, the wire can be prevented from being damaged by falling, the mounting plate 44 can be pushed to move through the electric push rod 42, the ground fault diagnosis clamp 8 can be driven to move through the mounting plate 44, so that the ground fault diagnosis clamp 8 can be lapped on different positions of the wire, the sufficient distance of the movement of the ground fault diagnosis clamp 8 can be ensured through the arrangement of the plurality of push plates 43 and the electric push rod 42, thereby, the continuous diagnosis of the electric wire can be conveniently carried out, the mounting plate 44 can be prevented from falling through the connecting rod 5, the remote control can be conveniently carried out through the remote control signal receiver 10, and the standby battery 11 can be used for carrying out remote power supply when an external power supply is not available.
The utility model relates to a circuit connection is the conventional means that technical staff adopted in this field, and accessible limited number of tests obtains the technological inspiration, belongs to the widely used prior art.
Components not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.
Claims (5)
1. The ground fault diagnosis device for the power distribution network comprises fixing frames (1), wherein the fixing frames (1) are three, the three fixing frames (1) are connected through connecting plates (2), a placing box (6) is arranged on the lower surface of the left fixing frame (1), a ground fault diagnosis instrument (7) is arranged in the placing box (6), the ground fault diagnosis device is characterized in that sliding rods are arranged on the fixing frames (1), fixing screw rods (31) are arranged on front side plates and rear side plates of the fixing frames (1), the fixing screw rods (31) are in threaded connection with the fixing frames (1), movable plates (32) are arranged at the inner ends of the fixing screw rods (31), the fixing screw rods (31) are in rotating connection with the movable plates (32), the lower ends of the movable plates (32) are in sliding connection with the sliding rods, insulating rubber (33) are arranged on the inner walls of the movable plates (32), and fixing plates (41) are arranged on the lower surfaces of the fixing frames (1), the right side of fixed plate (41) is equipped with three push pedal (43), and the right lateral wall of fixed plate (41) and three push pedal (43) all is equipped with two electric putter (42), fixed connection between the end that stretches out of electric putter (42) and adjacent push pedal (43), is located and is equipped with mounting panel (44) between the end that stretches out of two electric putter (42) on right side, and the upper surface of mounting panel (44) is equipped with earth fault diagnosis pincers (8), and the input of earth fault diagnosis appearance (7) is connected to the output electricity of earth fault diagnosis pincers (8), earth fault diagnosis appearance (7) are equipped with built-in power supply, the lateral wall of placing case (6) is equipped with singlechip (9), and the output of external power source is connected to the input electricity of singlechip (9), and the input of electric putter (42) is connected to the output electricity of singlechip (9).
2. A ground fault diagnosis apparatus for an electric distribution network according to claim 1, characterized in that: the fixing frame (1), the connecting plate (2) and the mounting plate (44) are all made of light aluminum alloy, and the fixing frame (1), the connecting plate (2) and the mounting plate (44) are all hollowed out.
3. A ground fault diagnosis apparatus for an electric distribution network according to claim 1, characterized in that: still include connecting rod (5), connecting rod (5) are two, and all arrange the lateral wall of mounting panel (44) in, peg graft between mounting panel (44) and mount (1).
4. A ground fault diagnosis apparatus for an electric distribution network according to claim 1, characterized in that: the device is characterized by further comprising a remote control signal receiver (10), wherein the remote control signal receiver (10) is arranged on the side wall of the placing box (6), and the output end of the remote control signal receiver (10) is electrically connected with the input end of the single chip microcomputer (9).
5. A ground fault diagnosis apparatus for an electric distribution network according to claim 1, characterized in that: still include backup battery (11), backup battery (11) are arranged in the lateral wall of placing case (6), and the input of singlechip (9) is connected to backup battery's (11) output electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221007710.3U CN217385785U (en) | 2022-04-27 | 2022-04-27 | Ground fault diagnosis device for power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221007710.3U CN217385785U (en) | 2022-04-27 | 2022-04-27 | Ground fault diagnosis device for power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217385785U true CN217385785U (en) | 2022-09-06 |
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ID=83110220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221007710.3U Expired - Fee Related CN217385785U (en) | 2022-04-27 | 2022-04-27 | Ground fault diagnosis device for power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217385785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115825810A (en) * | 2023-02-24 | 2023-03-21 | 国网辽宁省电力有限公司 | Small current ground fault detection device for electric power system |
-
2022
- 2022-04-27 CN CN202221007710.3U patent/CN217385785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115825810A (en) * | 2023-02-24 | 2023-03-21 | 国网辽宁省电力有限公司 | Small current ground fault detection device for electric power system |
| CN115825810B (en) * | 2023-02-24 | 2023-04-18 | 国网辽宁省电力有限公司 | Low-current ground fault detection device for power system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |