CN213581130U - Lightning arrester capable of realizing on-site rapid detection of leakage current - Google Patents
Lightning arrester capable of realizing on-site rapid detection of leakage current Download PDFInfo
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- CN213581130U CN213581130U CN202021523915.8U CN202021523915U CN213581130U CN 213581130 U CN213581130 U CN 213581130U CN 202021523915 U CN202021523915 U CN 202021523915U CN 213581130 U CN213581130 U CN 213581130U
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Abstract
The utility model relates to a can realize on-spot short-term test leakage current's arrester and leakage current tester. The lightning arrester comprises a lightning arrester body and an insulating frame which is arranged at the bottom end of the lightning arrester body and fixed through a conductive nut rod, wherein a conductive opening and closing assembly is arranged below the conductive nut rod, one end of the conductive opening and closing assembly can be in contact with or disconnected from one end of the conductive nut rod, and the other end of the conductive opening and closing assembly is fixed on the insulating frame through a ground wire fixing nut. The leakage current tester comprises an insulating operating rod and a current tester arranged at one end of the insulating operating rod, the output end of the current tester is fixed with the contact assembly, and two contact rods of the leakage current tester can disconnect the copper sheet from the conductive nut rod when contacting the conductive nut rod and the copper sheet respectively. Therefore, the utility model has the advantages of as follows: 1. the leakage current can be directly tested in a live mode on site, and convenience and rapidness are achieved; 2. the contact does not slide or deflect during testing, and the testing result is accurate and reliable; 3. the test process is safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of the arrester and specifically relates to a can realize on-spot short-term test leakage current's arrester.
Background
The lightning arrester is one of important electrical equipment of an electric power system, protects the electrical equipment from being damaged by instantaneous overvoltage and can cut off follow current when lightning overvoltage or operation overvoltage occurs to a power grid, so that an electrical device which does not cause system grounding short circuit can play an important role in the safe operation of the electric power system. The lightning arrester runs for a long time, the internal resistor sheet can be aged, damped or damaged gradually, and the active loss is obviously increased. By measuring the change of the leakage current of the lightning arrester, the running condition of the lightning arrester can be known, and the method is an important means for judging the quality of the lightning arrester under the running voltage.
The ground wire end is directly connected with the ground bar in the design of the existing arrester product, the leakage current of the field live test cannot be carried out, the arrester needs to be dismantled in the test under the power failure state, and the test is carried out after the test voltage is connected, so that the problems of large workload, large potential safety hazard, shortened service life of equipment and the like exist. The cost is high if the online monitor is installed, and the detector itself has the problem of failure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technical problem, provide a can realize on-spot short-term test leakage current's arrester. The method is mainly realized by the following technical scheme:
the lightning arrester capable of realizing on-site rapid detection of leakage current is characterized by comprising a lightning arrester body and an insulating frame, wherein the insulating frame is arranged at the bottom end of the lightning arrester body and is fixed through a conductive nut rod, a conductive opening and closing assembly is arranged below the conductive nut rod, one end of the conductive opening and closing assembly can be in contact with or disconnected from one end of the conductive nut rod, and the other end of the conductive opening and closing assembly is fixed on the insulating frame through a ground wire fixing nut.
The lightning arrester capable of realizing on-site rapid detection of leakage current comprises a spring assembly, wherein one end of the spring assembly is fixed with a copper sheet, the copper sheet can be in contact with or disconnected from one end of a conductive nut rod under the action of the spring assembly, and the other end of the spring assembly is fixed on an insulating frame through a fixing nut.
In the lightning arrester capable of realizing rapid on-site detection of leakage current, the spring assembly comprises at least two torsion springs, one end of each torsion spring is fixed on the insulating frame, and the other end of each torsion spring is simultaneously fixed on the copper sheet.
Therefore, the utility model has the advantages of as follows: 1. the leakage current can be directly tested in a live mode on site, and convenience and rapidness are achieved; 2. the contact does not slide or deflect during testing, and the testing result is accurate and reliable; 3. the test process is safe and reliable.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a front view of the spring assembly of fig. 1.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings. In the figure, an insulating operating rod 1, a current tester 2, a contact rod 3, an insulating frame 4, a conductive nut rod 5, a spring assembly 6, a copper sheet 7, a ground wire 8 and a lightning arrester body 9.
Example (b):
the utility model relates to a can realize on-spot short-term test leakage current's arrester, including the arrester body, set up the insulating frame of fixing through electrically conductive nut pole in arrester body bottom electrically conductive nut pole below is provided with electrically conductive switching subassembly, electrically conductive switching subassembly one end can contact or the disconnection with the one end of electrically conductive nut pole, and the other end passes through ground wire fixation nut to be fixed on insulating frame. The conductive opening and closing assembly comprises a spring assembly, one end of the spring assembly is fixedly provided with a copper sheet, the copper sheet can be in contact with or disconnected from one end of the conductive nut rod under the action of the spring assembly, and the other end of the spring assembly is fixed on the insulating frame through a fixing nut.
The spring assembly comprises at least two torsion springs, one ends of the torsion springs are fixed on the insulating frame, and the other ends of the torsion springs are fixed on the copper sheet.
The utility model discloses still relate to one kind and can realize on-spot short-term test leakage current's leakage current tester, a serial communication port, including an insulating bar and set up the current tester in insulating bar one end, current tester's output is fixed with contact subassembly, can break off copper sheet and conductive nut pole when two feeler levers of leakage current tester contact conductive nut pole and copper sheet respectively.
The current tester model is KRJS-Z, the contact assembly is two parallel arrangement's feeler levers, the length of feeler lever is different.
During working, the contact rod of the insulating operating rod pushes the spring open, and then the leakage current can be detected in an electrified mode.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The lightning arrester capable of realizing on-site rapid detection of leakage current is characterized by comprising a lightning arrester body and an insulating frame, wherein the insulating frame is arranged at the bottom end of the lightning arrester body and is fixed through a conductive nut rod, a conductive opening and closing assembly is arranged below the conductive nut rod, one end of the conductive opening and closing assembly can be in contact with or disconnected from one end of the conductive nut rod, and the other end of the conductive opening and closing assembly is fixed on the insulating frame through a ground wire fixing nut.
2. The lightning arrester capable of rapidly detecting leakage current in site according to claim 1, wherein the conductive opening and closing assembly comprises a spring assembly, a copper sheet is fixed at one end of the spring assembly, the copper sheet can be contacted with or disconnected from one end of the conductive nut rod under the action of the spring assembly, and the other end of the spring assembly is fixed on the insulating frame through a fixing nut.
3. The lightning arrester capable of realizing on-site rapid detection of leakage current according to claim 2, wherein the spring assembly comprises at least two torsion springs, one end of each torsion spring is fixed on the insulating frame, and the other end of each torsion spring is fixed on the copper sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021523915.8U CN213581130U (en) | 2020-07-28 | 2020-07-28 | Lightning arrester capable of realizing on-site rapid detection of leakage current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021523915.8U CN213581130U (en) | 2020-07-28 | 2020-07-28 | Lightning arrester capable of realizing on-site rapid detection of leakage current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213581130U true CN213581130U (en) | 2021-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021523915.8U Active CN213581130U (en) | 2020-07-28 | 2020-07-28 | Lightning arrester capable of realizing on-site rapid detection of leakage current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213581130U (en) |
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2020
- 2020-07-28 CN CN202021523915.8U patent/CN213581130U/en active Active
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