CN211351259U - Power distribution cabinet grounding device for intelligent substation relay protection - Google Patents
Power distribution cabinet grounding device for intelligent substation relay protection Download PDFInfo
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- CN211351259U CN211351259U CN201921988386.6U CN201921988386U CN211351259U CN 211351259 U CN211351259 U CN 211351259U CN 201921988386 U CN201921988386 U CN 201921988386U CN 211351259 U CN211351259 U CN 211351259U
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Abstract
The utility model discloses a switch board earthing device for intelligent substation relay protection, concretely relates to switch board field, including earth connection connecting terminal, butterfly support piece, earthing terminal plate are installed to earth connection connecting terminal's top surface, and earthing terminal plate's top surface joint has the outer container, and earthing terminal plate's top surface installs fixing base, surge protector, high-voltage coil from a left side to the right side in proper order, and the water conservancy diversion dish is installed to the inboard of fixing base, and the top surface of water conservancy diversion dish is installed and is separated stream board, water conservancy diversion post, and the top electricity of water conservancy diversion post is connected with water. The utility model discloses set up earth connection connecting terminal and earth connection box, utilize earth connection connecting terminal and earth connection box to carry out ground connection for the anti external force influence ability of ground connection reliability is stronger, and utilizes the reposition of redundant personnel copper bar to form partial current through surge protector and mitigate the ground connection, can show the stability and the security that improve the switch board, promotes this earthing device's practicality.
Description
Technical Field
The utility model relates to a switch board technical field, more specifically say, the utility model specifically is a switch board earthing device for intelligent substation relay protection.
Background
The intelligent transformer substation adopts advanced, reliable, integrated and environment-friendly intelligent equipment, takes total station information digitization, communication platform networking and information sharing standardization as basic requirements, automatically completes basic functions of information acquisition, measurement, control, protection, metering, detection and the like, and simultaneously has advanced functions of supporting real-time automatic control, intelligent adjustment, on-line analysis decision, cooperative interaction and the like of a power grid.
In the occasion of the power failure operation of the intelligent substation power grid, in order to prevent dangerous factors such as residual voltage, sudden power transmission error, induced electricity and the like and ensure the personal safety of operating personnel, grounding wires which are necessary for ensuring the safety are required to be arranged in the operation range, and meanwhile, the grounding wires are required to be arranged to be in good contact and reliable connection.
However, in actual use, some disadvantages still exist, for example, in the conventional installation of a ground wire, the conventional installation is usually realized by screwing a ground wire contact head on a ground bolt through a butterfly nut, the tightening force of the grounding operation is generally determined through experience, the reliable grounding function cannot be ensured, the grounding reliability has poor capability of resisting external force influence, the effective contact area of the grounding end is small, in addition, most of the conventional grounding devices have complex structures, a large amount of manpower is wasted for installation, and the installation steps are complicated and the maintenance cost is high.
Therefore, a power distribution cabinet grounding device for intelligent substation relay protection, which is convenient to install and reliable in grounding, is needed urgently.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above defects in the prior art, the embodiment of the utility model provides a power distribution cabinet grounding device for intelligent substation relay protection, through setting up the grounding wire connecting terminal and the grounding box, utilize the grounding wire connecting terminal and the grounding box to carry out grounding, so that the effective contact area of the grounding wire conductive piece is larger, the grounding reliability is stronger in external force influence resistance, and partial current is formed by the surge protector through the shunt copper bar to be relaxed and grounded, so that the stability and the safety of the power distribution cabinet can be obviously improved, and the practicability of the grounding device is improved; additionally, the utility model discloses a set up independent earthing device and ground wire connecting device, utilize this earthing device and ground wire connecting device to be fixed in the relay protection switch board and bury in the underground for the ground connection is reliable to be made the operation time of ground connection the degree of difficulty shorter lower, and standardization, uniformity are better, and ground connection operation is retrencied, has greatly reduced installation time, has eliminated the empirical mode that ground connection operation needs the accumulation to screw up the power way, with the problem of proposing among the above-mentioned background art of solution.
In order to achieve the above object, the utility model provides a following technical scheme: a power distribution cabinet grounding device for intelligent substation relay protection comprises a grounding wire connecting terminal and a grounding box, wherein a butterfly-shaped supporting piece is fixedly installed on the top surface of the grounding wire connecting terminal, a grounding terminal board is fixedly installed at the top end of the butterfly-shaped supporting piece, an outer box is clamped on the top surface of the grounding terminal board, the grounding terminal board and the outer box form a closed cavity, a fixed seat, a surge protector and a high-voltage coil are fixedly installed on the top surface of the grounding terminal board from left to right in sequence, the fixed seat, the surge protector and the high-voltage coil are located inside the grounding terminal board and the outer box, a flow guide disc is fixedly installed on the inner side of the fixed seat, a flow partition plate is fixedly installed on the top surface of the flow guide disc, a flow guide column is fixedly sleeved inside the flow partition plate, a, the copper bar is three-way structure, wherein one end of copper bar is connected with surge protector's input electricity, the other end electricity of copper bar is connected with high-pressure joint, high-pressure joint's the other end is connected with high-pressure coil's input electricity.
In a preferred embodiment, the surface of the ground wire connecting terminal is provided with a plurality of mounting holes and a threaded hole, the inside of the butterfly-shaped support member is fixedly sleeved with a threaded rod core, the middle part of the threaded rod core is provided with a concave part, the threaded rod core is fixed inside the butterfly-shaped support member through the concave part, two ends of the threaded rod core are provided with threads, and two ends of the butterfly-shaped support member are respectively and fixedly connected with the ground wire connecting terminal and the ground terminal plate through the threaded rod core.
In a preferred embodiment, the fixing base is annular, the bottom end and the inner side of the fixing base are respectively and fixedly connected with the top surface of the ground terminal plate and the side surface of the deflector by welding, and the deflector is an aluminum member.
In a preferred embodiment, the flow partitioning plate is a multilayer plate-shaped structure, a circular through hole is formed in the flow partitioning plate, graphite powder is laid in the circular through hole, and the bottom end of the flow guiding column is inserted into the graphite powder.
In a preferred embodiment, the ground terminal plate is made of aluminum or copper, the bottom surface of the ground terminal plate is provided with annular protrusions, the annular protrusions are respectively in friction connection with butterfly-shaped supporting pieces at two ends of the bottom surface of the ground terminal plate, and the middle of each annular protrusion is provided with a thread matched with the threaded rod core.
In a preferred embodiment, the high-voltage coil is composed of a coil and an internal insulating rod core, two ends of the high-voltage coil are electrically connected with the high-voltage connector and the butterfly-shaped supporting piece at the right end of the ground terminal plate respectively, and the number of turns of the high-voltage coil is matched with the magnitude of the input voltage of the power distribution cabinet.
In a preferred embodiment, the ground box is buried at 40-70cm underground, the surface of the ground box is of a rough surface structure, the ground box is electrically connected with a ground wire connecting terminal through a ground wire, and the overall resistance value of the outer box is less than 4 ohms.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a set up earth connection connecting terminal and earth connection box, utilize earth connection connecting terminal and earth connection box to carry out ground connection, make the effective area of contact of earth connection conductive piece bigger, the anti external force of ground reliability influence ability is stronger, and utilize the reposition of redundant personnel copper bar to form through surge protector with some electric current and relax ground connection, can show the stability and the security that improve the switch board, promote the practicality of this earthing device;
2. the utility model discloses a set up independent earthing device and ground wire connecting device, utilize this earthing device and ground wire connecting device to be fixed in the relay protection switch board and bury in the underground for the ground connection is reliable to be made the operation time of ground connection the degree of difficulty shorter lower, and standardization, uniformity are better, and ground connection operation is retrencied, has greatly reduced installation time, has eliminated ground connection operation and has needed the accumulation to screw up the empirical mode that the power was said.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the butterfly-shaped support member of the present invention.
Fig. 3 is a schematic view of the structure of the flow baffle of the present invention.
Fig. 4 is a schematic view of the working principle structure of the present invention.
The reference signs are: 1. a ground wire connecting terminal; 2. a butterfly support; 21. a threaded rod core; 22. a recess; 3. a ground terminal plate; 4. an outer box; 5. a fixed seat; 6. a flow guide disc; 7. a flow isolating plate; 71. graphite powder; 8. a flow guide column; 9. a flow guide connector; 10. copper bars; 11. a surge protector; 12. a high-pressure joint; 13. a high-voltage coil; 14. a ground wire; 15. a grounding box; 16. relay protection switch board.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The grounding device of the power distribution cabinet for the intelligent substation relay protection shown in the attached drawings 1-3 comprises a grounding wire connecting terminal 1 and a grounding box 15, wherein a butterfly-shaped supporting member 2 is fixedly installed on the top surface of the grounding wire connecting terminal 1, a grounding terminal plate 3 is fixedly installed on the top end of the butterfly-shaped supporting member 2, an outer box 4 is clamped on the top surface of the grounding terminal plate 3, the grounding terminal plate 3 and the outer box 4 form a closed cavity, a fixed seat 5, a surge protector 11 and a high-voltage coil 13 are fixedly installed on the top surface of the grounding terminal plate 3 from left to right in sequence, the fixed seat 5, the surge protector 11 and the high-voltage coil 13 are located inside the grounding terminal plate 3 and the outer box 4, a flow guide disc 6 is fixedly installed on the inner side of the fixed seat 5, a flow baffle 7 is fixedly installed on the top surface of the flow, the other end electricity of water conservancy diversion connector 9 is connected with copper bar 10, and copper bar 10 is three-way structure, and wherein one end and the input electricity of surge protector 11 of copper bar 10 are connected, and the other end electricity of copper bar 10 is connected with high pressure joint 12, and the other end of high pressure joint 12 is connected with the input electricity of high-voltage coil 13.
The implementation mode is specifically as follows: by arranging the grounding wire connecting terminal 1 and the grounding box 15 and utilizing the grounding wire connecting terminal 1 and the grounding box 15 to perform grounding, the effective contact area of the grounding wire conductive piece is larger, the grounding reliability is stronger in external force influence resistance, and partial current is formed into mild grounding through the surge protector 11 by utilizing the shunt copper bar 10 through the surge protector 11, so that the stability and the safety of the power distribution cabinet can be obviously improved, and the practicability of the grounding device is improved; additionally, the utility model discloses a set up independent earthing device and 14 connecting device of ground wire, utilize this earthing device and 14 connecting device of ground wire to be fixed in the relay protection switch board and bury in the underground for the reliable operation time of ground connection makes the operation time of ground connection shorter the degree of difficulty lower, and normative, uniformity are better, and ground connection operation is retrencied, has greatly reduced installation time, has eliminated the empirical mode that ground connection operation needs the accumulation to screw up the power way.
The surface of the grounding wire connecting terminal 1 is provided with a plurality of mounting holes and a threaded hole, the inside of the butterfly-shaped support member 2 is fixedly sleeved with a threaded rod core 21, the middle of the threaded rod core 21 is provided with a concave part 22, the threaded rod core 21 is fixed inside the butterfly-shaped support member 2 through the concave part 22, two ends of the threaded rod core 21 are provided with threads, two ends of the butterfly-shaped support member 2 are fixedly connected with the grounding wire connecting terminal 1 and the grounding terminal plate 3 through the threaded rod core 21 respectively, so that the supporting and the enhancing of the conductivity are realized, and the grounding reliability is stronger in external force influence.
Wherein, fixing base 5 is the ring form, and the bottom of fixing base 5 and inboard through the welding respectively with the top surface of earthing terminal plate 3 and the side fixed connection of guiding disk 6, guiding disk 6 is aluminium matter material component, and guiding disk 6 is used for storing and dredging the electric current, can prevent like this that the electric current from piling up.
The flow partition plate 7 is of a multilayer plate-shaped structure, a circular through hole is formed in the flow partition plate 7, graphite powder 71 is laid in the circular through hole, the bottom end of the flow guide column 8 is inserted into the inside of the graphite powder 71, and the graphite powder 71 in the flow partition plate 7 can guarantee the connection stability of the grounding device.
The ground terminal plate 3 is made of aluminum or copper, the bottom surface of the ground terminal plate 3 is provided with annular protrusions, the annular protrusions are respectively in friction connection with the butterfly-shaped supporting pieces 2 at two ends of the bottom surface of the ground terminal plate 3, the middle of each annular protrusion is provided with a thread matched with the threaded rod core 21, connection between the butterfly-shaped supporting pieces 2 and the ground terminal plate 3 is enhanced, and conductivity is improved.
The high-voltage coil 13 is composed of a coil and an internal insulating rod core, two ends of the high-voltage coil 13 are electrically connected with the high-voltage connector 12 and the butterfly-shaped supporting piece 2 at the right end of the grounding terminal plate 3 respectively, the number of turns of the high-voltage coil 13 is matched with the input voltage of the power distribution cabinet, and the high-voltage coil 13 can generate a large amount of high-voltage current to maintain the normal work of the power distribution cabinet.
The grounding box 15 is buried at the position 40-70cm underground, the surface of the grounding box 15 is of a rough surface structure, the grounding box 15 is electrically connected with the grounding wire connecting terminal 1 through the grounding wire 14, and the overall resistance value of the outer box 4 is smaller than 4 ohms, so that the device can be well grounded.
The utility model discloses the theory of operation:
referring to the description, FIG. 4: the device is firstly placed into a relay protection power distribution cabinet 16, the surface of a bottom plate of the relay protection power distribution cabinet 16 is fixed by a bolt through a mounting hole on the surface of a grounding wire connecting terminal 1, a grounding box 15 is buried in the ground by 40-70cm according to an operation specification, the grounding wire connecting terminal 1 and the grounding box 15 are electrically connected by a grounding wire 14, grounding is performed by the grounding wire connecting terminal 1 and the grounding box 15, the effective contact area of the grounding wire conductive piece is larger, the external force influence resistance of grounding reliability is stronger, partial current is formed to be relaxed and grounded through a surge protector 11 by a shunt copper bar 10 through the surge protector 11, and the stability and the safety of the power distribution cabinet can be obviously improved.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a switch board earthing device for intelligent substation relay protection, includes earth connection terminal (1) and ground connection box (15), its characterized in that: the top surface of the ground wire connecting terminal (1) is fixedly provided with a butterfly-shaped supporting piece (2), the top end of the butterfly-shaped supporting piece (2) is fixedly provided with a ground terminal board (3), the top surface of the ground terminal board (3) is clamped with an outer box (4), the ground terminal board (3) and the outer box (4) form a closed cavity, the top surface of the ground terminal board (3) is sequentially and fixedly provided with a fixing seat (5), a surge protector (11) and a high-voltage coil (13) from left to right, the fixing seat (5), the surge protector (11) and the high-voltage coil (13) are positioned inside the ground terminal board (3) and the outer box (4), the inner side of the fixing seat (5) is fixedly provided with a flow guide plate (6), the top surface of the flow guide plate (6) is fixedly provided with a flow partition plate (7), the top electricity of water conservancy diversion post (8) is connected with water conservancy diversion connector (9), the other end electricity of water conservancy diversion connector (9) is connected with copper bar (10), copper bar (10) are three-way structure, wherein one end of copper bar (10) is connected with the input electricity of surge protector (11), the other end electricity of copper bar (10) is connected with high-pressure joint (12), the other end of high-pressure joint (12) is connected with the input electricity of high-pressure coil (13).
2. The grounding device of the power distribution cabinet for the intelligent substation relay protection according to claim 1, characterized in that: the surface of the ground wire connecting terminal (1) is provided with a plurality of mounting holes and a threaded hole, a threaded rod core (21) is fixedly sleeved in the butterfly-shaped supporting piece (2), a concave part (22) is arranged in the middle of the threaded rod core (21), the threaded rod core (21) is fixed in the butterfly-shaped supporting piece (2) through the concave part (22), threads are arranged at two ends of the threaded rod core (21), and two ends of the butterfly-shaped supporting piece (2) are respectively fixedly connected with the ground wire connecting terminal (1) and the ground terminal board (3) through the threaded rod core (21).
3. The grounding device of the power distribution cabinet for the intelligent substation relay protection according to claim 1, characterized in that: the fixing seat (5) is in a circular ring shape, the bottom end and the inner side of the fixing seat (5) are respectively and fixedly connected with the top surface of the grounding terminal board (3) and the side surface of the flow guide disc (6) through welding, and the flow guide disc (6) is an aluminum material component.
4. The grounding device of the power distribution cabinet for the intelligent substation relay protection according to claim 1, characterized in that: the flow partition plate (7) is of a multilayer plate-shaped structure, a circular through hole is formed in the flow partition plate (7), graphite powder (71) is laid in the circular through hole, and the bottom end of the flow guide column (8) is inserted into the graphite powder (71).
5. The grounding device of the power distribution cabinet for the intelligent substation relay protection according to claim 2, characterized in that: the ground terminal board (3) is made of aluminum or copper materials, annular protrusions are arranged on the bottom surface of the ground terminal board (3), the annular protrusions are respectively in friction connection with butterfly-shaped supporting pieces (2) at two ends of the bottom surface of the ground terminal board (3), and threads matched with the threaded rod core (21) are arranged in the middle of the annular protrusions.
6. The grounding device of the power distribution cabinet for the intelligent substation relay protection according to claim 1, characterized in that: the high-voltage coil (13) is composed of a coil and an internal insulation rod core, two ends of the high-voltage coil (13) are electrically connected with the high-voltage connector (12) and the butterfly-shaped supporting piece (2) at the right end of the grounding terminal plate (3) respectively, and the number of turns of the high-voltage coil (13) is matched with the input voltage of the power distribution cabinet.
7. The grounding device of the power distribution cabinet for the intelligent substation relay protection according to claim 1, characterized in that: the grounding box (15) is buried at a position 40-70cm underground, the surface of the grounding box (15) is of a rough surface structure, the grounding box (15) is electrically connected with the grounding wire connecting terminal (1) through a grounding wire (14), and the overall resistance value of the outer box (4) is smaller than 4 ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988386.6U CN211351259U (en) | 2019-11-18 | 2019-11-18 | Power distribution cabinet grounding device for intelligent substation relay protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921988386.6U CN211351259U (en) | 2019-11-18 | 2019-11-18 | Power distribution cabinet grounding device for intelligent substation relay protection |
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| Publication Number | Publication Date |
|---|---|
| CN211351259U true CN211351259U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921988386.6U Active CN211351259U (en) | 2019-11-18 | 2019-11-18 | Power distribution cabinet grounding device for intelligent substation relay protection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463667A (en) * | 2020-04-12 | 2020-07-28 | 周静怡 | Intelligent substation is used for protecting switch board earthing device of relay |
| CN113241536A (en) * | 2021-04-20 | 2021-08-10 | 湖南海燕电气有限公司 | Three-phase relay protection safety grounding structure |
-
2019
- 2019-11-18 CN CN201921988386.6U patent/CN211351259U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463667A (en) * | 2020-04-12 | 2020-07-28 | 周静怡 | Intelligent substation is used for protecting switch board earthing device of relay |
| CN113241536A (en) * | 2021-04-20 | 2021-08-10 | 湖南海燕电气有限公司 | Three-phase relay protection safety grounding structure |
| CN113241536B (en) * | 2021-04-20 | 2023-10-27 | 湖南海燕电气有限公司 | Three-phase relay protection safety ground structure |
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