CN215263762U - Lightning protection grounding comprehensive monitoring system of traction substation - Google Patents
Lightning protection grounding comprehensive monitoring system of traction substation Download PDFInfo
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- CN215263762U CN215263762U CN202120910582.2U CN202120910582U CN215263762U CN 215263762 U CN215263762 U CN 215263762U CN 202120910582 U CN202120910582 U CN 202120910582U CN 215263762 U CN215263762 U CN 215263762U
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Abstract
The utility model discloses a lightning grounding comprehensive monitoring system of traction substation, including surge collection device, thunder and lightning peak collection device, arrester collection unit, ground net corrosion collection unit and collection unit, surge collection device, thunder and lightning peak collection device, arrester collection unit, ground net corrosion collection unit and collection unit communication connection; the arrester running state acquisition unit comprises an equipment body, a clamping part and a limiting part, wherein the equipment body is integrally U-shaped, the clamping part is connected with the equipment body, and the limiting part is detachably connected with the equipment body. The utility model has the advantages that: the U-shaped opening of the lightning arrester operation state acquisition unit can pass through the grounding down lead of the zinc oxide lightning arrester and is clamped with the clamping part; the lightning arrester installation method has the advantages that the original grounding downlead device cannot be damaged when the lightning arrester operation state acquisition unit is installed, the installation mode is simple, and the workload of installation personnel is greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of traction substation lightning grounding monitoring technique and specifically relates to a traction substation lightning grounding integrated monitoring system.
Background
The traction substation is an important component of a railway operation system. When a lightning stroke accident occurs in the traction substation, large-area power failure of a railway power supply system is caused, and the normal operation of a railway is directly damaged. The lightning strikes to a traction substation mainly come from two aspects: firstly, the lightning directly strikes electrical equipment of a substation; and lightning waves formed by induced lightning overvoltage and direct lightning overvoltage of an overhead line inlet line of the traction substation or a railway power supply contact network line invade the traction substation along the line. The direct lightning and lightning invasion waves of the transformer substation are very important for protecting incoming lines of the traction substation and the transformer from damage. Therefore, in order to improve the safe operation of the railway substation, a lightning protection system of the traction substation must have a good lightning protection grounding system, and a set of complete lightning protection grounding system comprises a surge protector, a lightning rod, a zinc oxide lightning arrester, a grounding down lead, a grounding grid and the like.
The lightning protection grounding system is used as an important component of a traction substation, and is used for protecting other functional equipment in the substation from being impacted by short-circuit fault current and lightning waves. Therefore, it is an essential task to monitor the working state of the lightning protection grounding system in real time.
An effective lightning protection grounding comprehensive monitoring system is lacked in the market at present, comprehensive online monitoring on the microampere-level leakage current of a surge protector SPD in the lightning protection grounding system of a traction substation, the lightning peak value, the running state of a zinc oxide arrester and the corrosion change trend of a grounding network cannot be carried out, and various collected data cannot be shared and managed in a unified mode in real time. In addition, when the zinc oxide arrester on-line monitoring device is installed on site, the grounding downlead device is generally required to be cut off and is respectively connected with the two ends of the arrester operation state acquisition unit, so that the structure of the original lightning protection grounding system is changed, the potential fault hazard is increased, and the installation workload is increased.
Disclosure of Invention
The utility model aims at providing a draw substation lightning protection ground integrated monitoring system, real-time supervision lightning protection ground system's running state according to above-mentioned prior art not enough to can avoid destroying original zinc oxide arrester ground connection downlead device when the installation, reduce installation work volume simultaneously.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a pull lightning grounding integrated monitoring system of electric substation which characterized in that: the lightning arrester monitoring system comprises an intelligent surge collecting unit device, a lightning peak collecting unit device, a lightning arrester running state collecting unit, a grounding grid electrochemical corrosion collecting unit and a collecting unit, wherein the intelligent surge collecting unit device, the lightning peak collecting unit device, the lightning arrester running state collecting unit and the grounding grid electrochemical corrosion collecting unit are all in communication connection with the collecting unit; the intelligent surge acquisition unit device is used for monitoring leakage current of a surge protector SPD arranged in a traction substation, the lightning peak value acquisition unit device is used for monitoring a lightning peak value of the surge protector SPD, the arrester operation state acquisition unit is used for monitoring an arrester operation state of the surge protector SPD, and the grounding grid electrochemical corrosion acquisition unit is used for monitoring a grounding grid corrosion change trend of the surge protector SPD.
The arrester running state acquisition unit comprises an equipment body, a clamping part and a limiting part, wherein the equipment body is integrally U-shaped, the clamping part is connected with the equipment body, the limiting part is detachably connected with the equipment body, the limiting part is a convex part, a convex part in the middle of the convex part is butted with a U-shaped opening in the equipment body, and magnets are arranged on two sides of the convex part.
The clamping part comprises a pair of connecting clamping pieces, a pair of supporting pieces and a pair of compression springs, the connecting clamping pieces are located at two ends of the inner wall of the U-shaped opening on the equipment body respectively, the compression springs and the supporting pieces are located in the equipment body, one ends of the compression springs are connected with the supporting pieces, and the other ends of the compression springs are connected with the connecting clamping pieces.
The clamping part also comprises a waterproof metal pipe, one end of the opening of the waterproof metal pipe is positioned on one side of the equipment body, which faces the connecting clamping piece, and the other end of the opening of the waterproof metal pipe is connected with the supporting piece in a sealing way; the compression spring is located inside the waterproof metal pipe, the connection clamping piece is close to one side of the compression spring is also provided with a shape and size and a limiting block matched with the waterproof metal pipe, and one end of the connection clamping piece is far away from the limiting block and is connected with the compression spring.
The clamping part comprises a pair of connecting clamping pieces and a connecting piece, wherein the pair of cross sections of the outer surface of the equipment body can be slidably connected are L-shaped, the connecting piece comprises a connecting screw and a connecting nut, the connecting clamping pieces comprise holes matched with the connecting screw, and the connecting screw penetrates through the holes and the connecting nut to be connected in a screwing mode.
The connecting clamping piece is higher than the equipment body, a part of the connecting clamping piece, which is higher than the equipment body, is provided with a transversely placed insulating handle on one side, which is far away from the U-shaped opening, and the insulating handle is U-shaped and is as high as the part of the connecting clamping piece, which protrudes out of the equipment body.
The clamping part is a copper conductive clamping part, a detection part is contained in the equipment body, and the detection part is electrically connected with the clamping part.
The convex limiting part is provided with a screw placing groove, and an openable cover body is arranged at an opening of the screw placing groove.
The intelligent surge acquisition unit device, the thunder and lightning peak acquisition unit device, the arrester operation state acquisition unit and the communication connection between the grounding grid electrochemical corrosion acquisition unit and the collecting unit comprise wired communication connection and wireless communication connection.
The utility model has the advantages that: the microampere-level leakage current, the lightning peak value, the lightning arrester running state and the corrosion change trend of the grounding grid of the field surge protector SPD of the traction substation can be monitored in real time. Meanwhile, the U-shaped opening of the lightning arrester operation state acquisition unit can pass through the grounding down lead of the zinc oxide lightning arrester, and is clamped by the clamping part, and then the convex limiting part is installed, so that the grounding down lead device can not slide out of the U-shaped opening; the lightning arrester installation method has the advantages that the original grounding downlead device cannot be damaged when the lightning arrester operation state acquisition unit is installed, the installation mode is simple, and the workload of installation personnel is greatly reduced.
Drawings
FIG. 1 is a system configuration diagram of the present invention;
fig. 2 is a structural diagram of an acquisition unit of the operation state of the arrester in the utility model;
fig. 3 is a sectional view of the body of the acquisition unit for the operating state of the arrester in the utility model;
fig. 4 is the utility model discloses well arrester running state acquisition unit structure chart.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-4, the labels 1-9 in the figures are respectively expressed as: equipment body 1, spacing portion 2, connection clamping piece 3, insulating handle 4, compression spring 5, supporting part 6, waterproof tubular metal resonator 7, stopper 8, screw standing groove 9.
The first embodiment is as follows: as shown in fig. 1, the lightning protection and grounding integrated monitoring system in the traction substation in this embodiment includes a surge collecting device, a lightning peak collecting device, a lightning arrester collecting unit, a grounding grid corrosion collecting unit, and a collecting unit, where the surge collecting device, the lightning peak collecting device, the lightning arrester collecting unit, and the grounding grid corrosion collecting unit are in communication connection with the collecting unit. The intelligent surge acquisition unit, the thunder peak acquisition unit, the arrester operation state acquisition unit and the grounding grid electrochemical corrosion acquisition unit are respectively used for monitoring microampere-level leakage current, a thunder peak value, an arrester operation state and grounding grid corrosion change trend of a field Surge Protector (SPD) of the traction substation in real time.
In this embodiment, intelligence surge acquisition unit, thunder and lightning peak value acquisition unit, arrester running state acquisition unit and grounding grid electrochemical corrosion acquisition unit and collect unit communication connection and include wired communication connection and wireless communication connection.
As shown in fig. 2, the arrester operation state acquisition unit includes an equipment body 1, a clamping part and a limiting part 2, the whole equipment body 1 is in a U shape, the clamping part is connected with the equipment body 1, and the limiting part 2 is detachably connected with the equipment body 1. The limiting part 2 is a convex part, the convex part in the middle of the convex part is butted with the U-shaped opening on the equipment body 1, and magnets are arranged on two sides of the convex part.
As shown in fig. 2 and 3, the clamping portion includes a pair of connecting clips 3, a pair of supporting members 6, and a compression spring 5, the pair of connecting clips 3 are located at two ends of the inner wall of the device body 1 away from the U-shaped opening, the compression spring 5 and the supporting members 6 are located inside the device body 1, one end of the compression spring 5 is connected to the supporting member 6, and the other end is connected to the connecting clips 3.
As shown in fig. 3, the clamping part further includes a waterproof metal pipe 7, one open end of the waterproof metal pipe 7 is located on one side of the device body 1 facing the connecting clamping piece 3, and the other end is connected with the supporting piece 6 in a sealing manner; compression spring 5 is located inside waterproof tubular metal resonator 7, and one side that connects clamping piece 3 and be close to compression spring 5 still is provided with the stopper 8 of a shape size and the 7 looks adaptations of waterproof tubular metal resonator, and the one end of keeping away from on the stopper 8 and connecting clamping piece 3 is connected with compression spring 5. Wherein, waterproof tubular metal resonator 7 plays the protection effect to compression spring 5, and stopper 8 is then used for spacing to compression spring 5's flexible stroke.
As shown in fig. 2, the connecting clip 3 is higher than the device body 1, the portion of the connecting clip 3 higher than the device body 1 is provided with a horizontally placed insulating handle 4 on one side far away from the U-shaped opening, and the insulating handle 4 is U-shaped and is as high as the portion of the connecting clip 3 protruding from the device body 1.
In the present embodiment, the clamping portions are made of copper conductive material, and the apparatus body 1 includes a detection member electrically connected to the clamping portions.
In this embodiment, the U-shaped opening of the clamping part serving as the lightning arrester operation state acquisition unit can pass through the grounding down conductor of the zinc oxide lightning arrester, and is elastically clamped by the clamping part with the compression spring 5, and then the convex limiting part 2 is installed, so as to ensure that the grounding down conductor device cannot slide out of the U-shaped opening; the lightning arrester installation method has the advantages that the original grounding downlead device cannot be damaged when the lightning arrester operation state acquisition unit is installed, the installation mode is simple, and the workload of installation personnel is greatly reduced.
Example two: compared with the first embodiment, the difference of the present embodiment is that the arrester operation state acquisition unit with different structures is adopted in the present embodiment.
As shown in fig. 4, the arrester operation state acquisition unit includes an apparatus body 1, a clamping portion and a limiting portion 2, the apparatus body 1 is integrally U-shaped, the clamping portion is connected with the apparatus body 1, and the limiting portion 2 is detachably connected with the apparatus body 1;
the limiting part is a convex part, the convex part positioned in the middle of the convex part is butted with the U-shaped opening on the equipment body, and magnets are arranged on two sides of the convex part.
In this embodiment, the clamping part includes a pair of connecting clamping pieces 3 and a connecting piece, the cross-section of which is L-shaped, and the connecting piece is slidably connected with the outer surface of the device body 1, the connecting piece includes a connecting screw and a connecting nut, the connecting clamping pieces 3 include a hole matched with the connecting screw, and the connecting screw passes through the hole and is screwed with the connecting nut.
In this embodiment, the U-shaped opening of the clamping part as the arrester operation state acquisition unit can pass through the ground connection downlead of the zinc oxide arrester, and then passes the hole on the connecting clamping piece 3 with the connecting screw and cooperates coupling nut to fix so that the ground connection downlead is including the joint, later installs convex spacing portion 2 again, guarantees that the ground connection downlead device can not follow the U-shaped opening roll-off.
In the present embodiment, the clamping portions are made of copper conductive material, and the apparatus body 1 includes a detection member electrically connected to the clamping portions.
In this embodiment, a screw placing groove 9 is provided on the convex limiting portion 2, an openable cover is provided at an opening of the screw placing groove 9, and a connection screw and a connection nut can be placed in the screw placing groove 9.
The above embodiments are embodied as follows: the intelligent surge acquisition unit, the thunder peak acquisition unit and the grounding grid electrochemical corrosion acquisition unit can adopt the existing acquisition equipment to realize the corresponding monitoring function.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.
Claims (9)
1. The utility model provides a pull lightning grounding integrated monitoring system of electric substation which characterized in that: the lightning arrester monitoring system comprises an intelligent surge collecting unit device, a lightning peak collecting unit device, a lightning arrester running state collecting unit, a grounding grid electrochemical corrosion collecting unit and a collecting unit, wherein the intelligent surge collecting unit device, the lightning peak collecting unit device, the lightning arrester running state collecting unit and the grounding grid electrochemical corrosion collecting unit are all in communication connection with the collecting unit; the intelligent surge acquisition unit device is used for monitoring leakage current of a surge protector SPD arranged in a traction substation, the lightning peak value acquisition unit device is used for monitoring a lightning peak value of the surge protector SPD, the arrester operation state acquisition unit is used for monitoring an arrester operation state of the surge protector SPD, and the grounding grid electrochemical corrosion acquisition unit is used for monitoring a grounding grid corrosion change trend of the surge protector SPD.
2. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 1, characterized in that: the arrester running state acquisition unit comprises an equipment body, a clamping part and a limiting part, wherein the equipment body is integrally U-shaped, the clamping part is connected with the equipment body, the limiting part is detachably connected with the equipment body, the limiting part is a convex part, a convex part in the middle of the convex part is butted with a U-shaped opening in the equipment body, and magnets are arranged on two sides of the convex part.
3. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 2, characterized in that: the clamping part comprises a pair of connecting clamping pieces, a pair of supporting pieces and a pair of compression springs, the connecting clamping pieces are located at two ends of the inner wall of the U-shaped opening on the equipment body respectively, the compression springs and the supporting pieces are located in the equipment body, one ends of the compression springs are connected with the supporting pieces, and the other ends of the compression springs are connected with the connecting clamping pieces.
4. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 3, characterized in that: the clamping part also comprises a waterproof metal pipe, one end of the opening of the waterproof metal pipe is positioned on one side of the equipment body, which faces the connecting clamping piece, and the other end of the opening of the waterproof metal pipe is connected with the supporting piece in a sealing way; the compression spring is located inside the waterproof metal pipe, the connection clamping piece is close to one side of the compression spring is also provided with a shape and size and a limiting block matched with the waterproof metal pipe, and one end of the connection clamping piece is far away from the limiting block and is connected with the compression spring.
5. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 2, characterized in that: the clamping part comprises a pair of connecting clamping pieces and a connecting piece, wherein the pair of cross sections of the outer surface of the equipment body can be slidably connected are L-shaped, the connecting piece comprises a connecting screw and a connecting nut, the connecting clamping pieces comprise holes matched with the connecting screw, and the connecting screw penetrates through the holes and the connecting nut to be connected in a screwing mode.
6. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 2, characterized in that: the connecting clamping piece is higher than the equipment body, a part of the connecting clamping piece, which is higher than the equipment body, is provided with a transversely placed insulating handle on one side, which is far away from the U-shaped opening, and the insulating handle is U-shaped and is as high as the part of the connecting clamping piece, which protrudes out of the equipment body.
7. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 2, characterized in that: the clamping part is a copper conductive clamping part, a detection part is contained in the equipment body, and the detection part is electrically connected with the clamping part.
8. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 2, characterized in that: the convex limiting part is provided with a screw placing groove, and an openable cover body is arranged at an opening of the screw placing groove.
9. The lightning protection grounding comprehensive monitoring system of the traction substation according to claim 1, characterized in that: the intelligent surge acquisition unit device, the thunder and lightning peak acquisition unit device, the arrester operation state acquisition unit and the communication connection between the grounding grid electrochemical corrosion acquisition unit and the collecting unit comprise wired communication connection and wireless communication connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120910582.2U CN215263762U (en) | 2021-04-29 | 2021-04-29 | Lightning protection grounding comprehensive monitoring system of traction substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120910582.2U CN215263762U (en) | 2021-04-29 | 2021-04-29 | Lightning protection grounding comprehensive monitoring system of traction substation |
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| Publication Number | Publication Date |
|---|---|
| CN215263762U true CN215263762U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120910582.2U Active CN215263762U (en) | 2021-04-29 | 2021-04-29 | Lightning protection grounding comprehensive monitoring system of traction substation |
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| Country | Link |
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| CN (1) | CN215263762U (en) |
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2021
- 2021-04-29 CN CN202120910582.2U patent/CN215263762U/en active Active
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