CN113588126A - Heating defect grading and lightning stroke positioning wire clamp pressing plate - Google Patents
Heating defect grading and lightning stroke positioning wire clamp pressing plate Download PDFInfo
- Publication number
- CN113588126A CN113588126A CN202111139414.9A CN202111139414A CN113588126A CN 113588126 A CN113588126 A CN 113588126A CN 202111139414 A CN202111139414 A CN 202111139414A CN 113588126 A CN113588126 A CN 113588126A
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- Prior art keywords
- defect
- temperature sensing
- main body
- plate
- wire clamp
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
- G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
- G01R29/0842—Measurements related to lightning, e.g. measuring electric disturbances, warning systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The application discloses defect that generates heat is decided grade and thunderbolt location line clamp plate includes: the wire clamp pressing plate main body and the grading positioning device are arranged on the wire clamp pressing plate main body; the grading positioning device comprises: a plurality of temperature sensing mechanisms; the temperature sensing mechanism includes: the mechanism comprises a mechanism main body, a temperature sensing body, a connecting piece and a defect plate; the mechanism main body is arranged on the wire clamp pressing plate main body; the temperature sensing body is detachably arranged in the mechanism main body and is used for expanding and cracking when reaching the cracking temperature; the defect plate is rotatably arranged on the mechanism main body; the two ends of the connecting piece are respectively connected with the temperature sensing body and the defect plate; the plurality of temperature sensing mechanisms are sequentially and adjacently arranged, and the rupture temperatures of the temperature sensing bodies on the temperature sensing mechanisms are different. Through the temperature sensing mechanism who contains mechanism main part, temperature sensing body, connecting piece and defect board that sets up, can be on-line clamp plate main part overheated or take place the thunderbolt and cause the temperature rise when, the temperature sensing body breaks and makes the defect board that loses the connection rotate along mechanism main part and take place the displacement, the defect of being convenient for fortune dimension personnel to generate heat is fixed a grade and is positioned with the thunderbolt point.
Description
Technical Field
The application relates to the technical field of line lightning stroke positioning devices, in particular to a heating defect grading and lightning stroke positioning line clamping plate.
Background
In the actual operation of the power line, the resistance of the connection fitting of the overcurrent equipment is increased due to the loosening of bolts, the dirt of the contact surface, the electrochemical corrosion of copper and aluminum and the like, and various faults are easily caused by overhigh local temperature under the conditions of large load or large current and the like. In addition, when the power transmission line is struck by lightning, the injection of lightning current can also cause the connection part of the splicing fitting to generate heat and cause faults.
And (3) treating the heating problem of the power equipment, defining different heating temperatures as different heating grades according to the requirement of an operation rule, and adopting different treatment modes for the different heating grades. In the aspect of defect grading, the existing main method is to perform periodic infrared temperature measurement on equipment, analyze the highest temperature and the relative temperature and then perform defect grading, and further take corresponding treatment measures. And because the power equipment has multiple points and is wide, the method of measuring temperature by artificial infrared has low efficiency and can not find problems in time. At present, an on-line monitoring device measures the temperature of equipment and judges the grade of the heating defect according to the temperature value, but the method is unreliable and has high cost.
For the positioning problem of the lightning stroke point, when a lightning stroke line occurs, the currently adopted scheme is that a lightning stroke positioning system is used for searching a lightning stroke record near a trip line, and then a worker is dispatched to perform line patrol to determine the lightning stroke point. The method has low efficiency and needs to consume a large amount of manpower and material resources.
Disclosure of Invention
In view of this, the present application provides a heating defect grading and lightning strike positioning line clamping plate, which is used to solve the problem that the existing power equipment heating defect grading mode and lightning strike positioning mode are both low in efficiency.
In order to achieve the above technical objective, the present application provides a heating defect grading and lightning stroke positioning wire clamp plate, including: the wire clamp pressing plate main body and the grading positioning device are arranged on the wire clamp pressing plate main body;
the grading positioning device comprises: a plurality of temperature sensing mechanisms;
the temperature sensing mechanism includes: the mechanism comprises a mechanism main body, a temperature sensing body, a connecting piece and a defect plate;
the mechanism main body is arranged on the wire clamp pressing plate main body;
the temperature sensing body is detachably arranged in the mechanism main body and is used for expanding and breaking when reaching a breaking temperature;
the defect plate is rotatably arranged on the mechanism main body;
the two ends of the connecting piece are respectively connected with the temperature sensing body and the defect plate;
the temperature sensing mechanisms are sequentially and adjacently arranged, and the rupture temperatures of the temperature sensing bodies on the temperature sensing mechanisms are different.
Further, the connecting piece is a spring piece;
before the temperature-sensing body is not broken, the connecting piece is in a stretching state.
Further, the defect plate is an elastic plate.
Further, the defect plate is an L-shaped plate;
the first end of the defect plate is rotatably connected with the mechanism main body, the first end corresponds to the middle position of the temperature sensing body, and the second end is positioned at the top of the temperature sensing body.
Furthermore, both ends of the wire clamp pressing plate main body are provided with the grading positioning devices.
Further, the color of the defective plate on each temperature sensing mechanism is different.
Further, the mechanism main body and the wire clamp pressing plate main body are manufactured through integrated molding.
Further, a lightening groove is formed in the wire clamp pressing plate main body.
Further, a U-shaped bolt installation groove is formed in the wire clamp pressing plate main body.
According to the above technical scheme, the application provides a defect of generating heat is decided grade and thunderbolt location line clamp plate, includes: the wire clamp pressing plate main body and the grading positioning device are arranged on the wire clamp pressing plate main body; the grading positioning device comprises: a plurality of temperature sensing mechanisms; the temperature sensing mechanism includes: the mechanism comprises a mechanism main body, a temperature sensing body, a connecting piece and a defect plate; the mechanism main body is arranged on the wire clamp pressing plate main body; the temperature sensing body is detachably arranged in the mechanism main body and is used for expanding and breaking when reaching a breaking temperature; the defect plate is rotatably arranged on the mechanism main body; the two ends of the connecting piece are respectively connected with the temperature sensing body and the defect plate; the temperature sensing mechanisms are sequentially and adjacently arranged, and the rupture temperatures of the temperature sensing bodies on the temperature sensing mechanisms are different. By arranging the temperature sensing mechanism comprising the mechanism main body, the temperature sensing body, the connecting piece and the defect plate, when the temperature of the line clamping plate main body is increased due to overheating or lightning stroke, the temperature sensing body is broken, so that the defect plate which is not connected is rotated along the mechanism main body to be displaced; the operation and maintenance personnel only need to observe which defect plate of the temperature sensing mechanism rotates to level the heating defect and position the lightning stroke, and the problem that the existing defect level-setting mode and lightning stroke point positioning mode of heating of the power equipment are low in efficiency can be effectively solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic diagram of an overall structure of a clamping plate for grading a heating defect and positioning a lightning stroke according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a heating defect grading and lightning strike location line clamping plate provided in an embodiment of the present application when a defect plate bounces open;
in the figure: 1. a wire clamp pressing plate main body; 11. a lightening tank; 12. a U-shaped bolt mounting groove; 2. a grading positioning device; 21. a temperature sensing mechanism; 22. a mechanism main body; 23. a temperature sensing body; 24. a connecting member; 25. and (7) a defective board.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection claimed herein.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, an embodiment of the present application provides a clamping plate for grading a thermal defect and positioning a lightning strike, including: the wire clamp pressing plate comprises a wire clamp pressing plate main body 1 and a grading positioning device 2; the grading positioning device comprises: a plurality of temperature sensing mechanisms 21; the temperature sensing mechanism 21 includes: mechanism main part 22, temperature sensing body 23, connecting piece 24 and defective plate 25.
The mechanism main body 22 is disposed on the wire clamp pressing plate main body 1, and may be formed integrally, which is beneficial to uniform heat conduction.
The temperature sensing body 23 is detachably arranged in the mechanism main body 22, and the temperature sensing body 23 is used for expanding and cracking when reaching the cracking temperature; the defect plate 25 is rotatably disposed on the mechanism main body 22; the two ends of the connecting piece 24 are respectively connected with the temperature sensing body 23 and the defect plate 25; the plurality of temperature sensing mechanisms 21 are arranged adjacently in sequence, and the rupture temperatures of the temperature sensing bodies 23 on the temperature sensing mechanisms 21 are different.
Specifically, in this embodiment, the clamp pressing plate main body 1 is provided with a U-shaped bolt installation groove 12, and the U-shaped bolt installation groove can be installed in a suspension clamp of a conductor or a ground wire, so that the heat generation defect grading and the lightning strike point positioning are realized. Taking the example that the temperature sensing mechanism 21 includes two temperature sensing bodies, the rupture temperatures of the temperature sensing bodies 23 can be set as required, in this embodiment, the rupture temperatures of the two corresponding temperature sensing bodies 23 are 70 ℃ and 90 ℃. When the temperature of the line clamping plate main body 1 reaches 70 ℃ and 90 ℃, one temperature sensing body 23 and the two temperature sensing bodies 23 are respectively broken, and the thrust generated by the broken temperature sensing bodies 23 pushes the defect plate 25 to rotate so as to generate displacement. The staff both can judge the defect grade that generates heat of fastener clamp plate main part 1 through the quantity of observing defect board 25 transmission displacement.
When lightning strike occurs, lightning current is injected from a lightning strike point and is transmitted to the tower to enter the ground along with the line. When lightning current flows through the suspension clamp, a temperature rise is rapidly caused at a contact point of the current flowing into the clamp. And, the wire clamp pressing plate main body 1 can both be provided with level fixing and positioning device 2 at both ends. Therefore, the temperature-sensitive bodies 23 at one end of the temperature-sensitive bodies 23 at the two ends of the wire clamping plate main body 1 expand and break due to temperature rise caused by lightning current, the defect plate 23 bounces open, and the lightning current can be considered to be injected into the wire clamp from the end. The worker can judge the position of the lightning stroke point by observing the action condition of the defect plate 25 on different towers. It should be noted that, if two adjacent towers have a defective plate on one side to act, it may be determined that the lightning strike point is on the line between the two towers.
Further, the connecting member 24 is a spring member; before the temperature-sensitive body 23 is not broken, the connecting piece 24 is in a stretching state, so that when the temperature-sensitive body 23 is broken, the defective plate 25 loses support and springs outwards.
Further, the defect plate 25 is an elastic plate, which has a buffering effect on impact force and improves durability. And the defect plate 25 is an L-shaped plate; the first end of the defect plate 25 is rotatably connected with the mechanism main body 22, and the first end corresponds to the middle position of the temperature sensing body 23, and the second end is positioned at the top of the temperature sensing body 23.
Specifically, the L-shaped defect plate 25 may serve to shield the top of the temperature-sensitive body 23, and when the temperature-sensitive body 23 is cracked by heat, the defect plate 25 is subjected to an impact force and an elastic pushing force of the connecting member 24, and the first end of the defect plate 25 rotates to make the second end gradually move away from the mechanism main body 22, as shown in fig. 2.
Note that the defect plate 25 may be connected to the mechanism main body 22 by a pivot link.
Furthermore, the colors of the defect plates 25 on the temperature sensing mechanisms 21 are different, so that the observation by workers is convenient.
Further, the wire clamp pressing plate main body 1 is provided with the lightening groove 11, so that the weight of the wire clamp pressing plate main body 1 can be lightened.
The heating defect grading and lightning stroke positioning line clamp plate provided by the embodiment can be properly adjusted according to the size of the suspension clamp, the heating defect grading function and the lightning stroke point positioning function are exerted on a lead and a ground wire, the number of temperature sensing bodies can be adjusted as required, the defects are not required to be manually checked, manpower and material resources are saved, and the best safety and economic balance is achieved.
Although the present invention has been described in detail with reference to examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention.
Claims (9)
1. The utility model provides a defect of generating heat is decided grade and thunderbolt location line clamp plate which characterized in that includes: the wire clamp pressing plate main body and the grading positioning device are arranged on the wire clamp pressing plate main body;
the grading positioning device comprises: a plurality of temperature sensing mechanisms;
the temperature sensing mechanism includes: the mechanism comprises a mechanism main body, a temperature sensing body, a connecting piece and a defect plate;
the mechanism main body is arranged on the wire clamp pressing plate main body;
the temperature sensing body is detachably arranged in the mechanism main body and is used for expanding and breaking when reaching a breaking temperature;
the defect plate is rotatably arranged on the mechanism main body;
the two ends of the connecting piece are respectively connected with the temperature sensing body and the defect plate;
the temperature sensing mechanisms are sequentially and adjacently arranged, and the rupture temperatures of the temperature sensing bodies on the temperature sensing mechanisms are different.
2. The heat generation defect grading and lightning strike locating linerboard as recited in claim 1 wherein said connector is a spring member;
before the temperature-sensing body is not broken, the connecting piece is in a stretching state.
3. The thermal defect grading and lightning strike localizing linerboard as claimed in claim 1 wherein said defect board is a resilient board.
4. The thermal defect grading and lightning strike localizing wire clamp plate of claim 1 wherein said defect plate is an L-shaped plate;
the first end of the defect plate is rotatably connected with the mechanism main body, the first end corresponds to the middle position of the temperature sensing body, and the second end is positioned at the top of the temperature sensing body.
5. The heat defect grading and lightning stroke positioning wire clamp plate according to claim 1, wherein the grading and positioning devices are arranged at both ends of the wire clamp plate main body.
6. The thermal defect grading and lightning strike location line clamping plate of claim 1, wherein the color of the defect plate on each temperature sensing mechanism is different.
7. The heat defect grading and lightning strike locating wire clamp plate of claim 1, wherein the mechanism body and the wire clamp plate body are made by integral molding.
8. The heat defect grading and lightning strike locating wire clamp plate of claim 1, wherein a lightening groove is provided on the wire clamp plate body.
9. The heating defect grading and lightning stroke positioning wire clamping plate according to claim 1, wherein a U-shaped bolt installation groove is formed in the wire clamping plate main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111139414.9A CN113588126A (en) | 2021-09-28 | 2021-09-28 | Heating defect grading and lightning stroke positioning wire clamp pressing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111139414.9A CN113588126A (en) | 2021-09-28 | 2021-09-28 | Heating defect grading and lightning stroke positioning wire clamp pressing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113588126A true CN113588126A (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111139414.9A Pending CN113588126A (en) | 2021-09-28 | 2021-09-28 | Heating defect grading and lightning stroke positioning wire clamp pressing plate |
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| CN (1) | CN113588126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118329972A (en) * | 2024-06-12 | 2024-07-12 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Simulation analysis device and experimental method for typical current-induced thermal defects |
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| CN110619623A (en) * | 2019-08-08 | 2019-12-27 | 广东工业大学 | Automatic identification method for heating of joint of power transformation equipment |
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| CN2602529Y (en) * | 2003-01-20 | 2004-02-04 | 樊和平 | Run-resistant hanging cable cleat |
| CN101420108A (en) * | 2007-10-26 | 2009-04-29 | 上海艾迪欧电力防振金具有限公司 | Solid die forging crescent type suspending wire clip and manufacturing process for wire clip body |
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Application publication date: 20211102 |