CN211348316U - Auxiliary device for lightning arrester direct current test - Google Patents
Auxiliary device for lightning arrester direct current test Download PDFInfo
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- CN211348316U CN211348316U CN201922422279.3U CN201922422279U CN211348316U CN 211348316 U CN211348316 U CN 211348316U CN 201922422279 U CN201922422279 U CN 201922422279U CN 211348316 U CN211348316 U CN 211348316U
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- insulating
- support rod
- direct current
- lightning arrester
- auxiliary device
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Abstract
The utility model discloses an auxiliary device for the direct current test of a lightning arrester, which comprises a high-voltage test lead traction mechanism and a discharge supporting mechanism; the included angle between the high-voltage testing lead and the lightning arrester is pulled open through the high-voltage testing lead traction mechanism, and discharging after direct-current testing is achieved through the discharging supporting mechanism. The utility model discloses not only can satisfy experimental demand, ensure that test data is accurate reliable, can satisfy the demand of discharging moreover for the residual charge fully eliminates, guarantees the personal safety of the personnel of tearing open the line.
Description
Technical Field
The utility model relates to an arrester direct current test is with auxiliary device is applicable to arrester direct current reference voltage and leakage current test process for the discharge after the contained angle and the test between pull open high-voltage testing lead wire and the arrester belongs to the electric power application.
Background
DC reference voltage U1mAAnd 0.75 times U1mAThe leakage current measurement in the following is one of the lightning arrester handover and routine test items. On one hand, the device can effectively reflect whether the valve plate of the arrester is affected with damp, aged and the like, and determine whether the action performance meets the product performance requirement; on the other hand, the valve plate has important functions of checking the charge rate in normal operation, determining the number of valve plates and judging whether the rated voltage is reasonable or not. According to the requirements of the lightning arrester direct current reference voltage and leakage current test guide rules, a shielding wire is used for a wire for measuring leakage current, and an included angle between a high-voltage test lead and the lightning arrester is required to be as large as possible (in order to ensure the test accuracy, the included angle is generally required to be larger than 60 degrees). Due to the field condition limitation, especially for the limitation of 110kV and 220kV spacing space, the angle cannot be opened, so that the stray current is too large, and the accuracy of the test result is influenced.
The electric power safety work regulation of the national grid company stipulates: "the metal housing of the test unit should be reliably grounded; the high-voltage test lead is shortened as much as possible, and a special high-voltage test lead is adopted and is firmly supported by an insulator if necessary. "
The national grid company electric power safety work regulation also stipulates: "at the time of change of wiring in the high voltage test or at the end of the test, the test power supply should first be disconnected for discharge and the high voltage part of the booster device should be short-circuited to ground. "arrester direct current testing arrangement on the market at present, in the discharge process after the test, can only adopt the contact mode to discharge, can't hang the discharge rod in the high-pressure part of step-up equipment, can't realize the short circuit ground connection of high-pressure part promptly.
Therefore, how to pull apart the included angle between the high-voltage test lead and the arrester in the testing process of the direct-current reference voltage and the leakage current of the arrester, and realize the short circuit grounding and the effective discharge of the high-voltage part after the test is an important problem to be solved by technical personnel in the field.
Disclosure of Invention
The utility model aims at providing an auxiliary device is used in lightning arrester direct current test not only can pull open the contained angle between high-voltage testing lead wire and the lightning arrester in lightning arrester direct current reference voltage and leakage current test process, satisfies the experimental demand, ensures that test data is accurate reliable, can realize the short circuit ground connection and the effective discharge of high-pressure part after the test moreover, guarantees personnel's safety.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: an auxiliary device for a lightning arrester direct current test comprises a high-voltage test lead traction mechanism and a discharge support mechanism;
the high-voltage test lead traction mechanism comprises an insulation support rod and a base detachably connected with the insulation support rod, the insulation support rod is erected on the ground through the base, the insulation support rod is formed by connecting and fixing a plurality of insulation pipe bodies, an insulation closed hook is detachably mounted at the top of the insulation support rod, and at least one insulation open hook is detachably mounted in the middle of the insulation support rod;
the discharge support mechanism comprises a conductive horizontal part and a vertical part, the horizontal part and the vertical part are mutually vertical to each other and are of an L-shaped structure, a first bayonet for clamping a high-voltage output end on the voltage doubling cylinder is arranged at the end part of the horizontal part, and a second bayonet for clamping a hook of a discharge rod is arranged at the end part of the vertical part;
the caliber of the first bayonet is larger than the outer diameter of the high-voltage output end of the voltage doubling cylinder, and the caliber of the second bayonet is larger than the diameter of the hook on the discharge rod.
Among the above-mentioned technical scheme, be provided with the clamp of taking the bolt on the base, the lower part of insulating support pole is inserted in the clamp and is locked by the bolt and fix.
In the technical scheme, the base is provided with the embedded bolt, the bottom of the insulating support rod is provided with the bolt hole with the internal thread, and the insulating support rod and the base are fixed through the matching of the embedded bolt and the bolt hole.
In the above technical scheme, the base is a discus type base or a ground insertion type base.
Among the above-mentioned technical scheme, insulating support rod is cup jointed fixedly by a plurality of insulating body and is formed to the external diameter that is located the body of top is less than the internal diameter that is located the body of below.
In the technical scheme, the joint of two adjacent insulating pipe bodies is provided with the thread locking sleeve.
In the technical scheme, the insulating support rod is formed by connecting and fixing a plurality of insulating pipe bodies in a threaded manner, and the outer diameters of the insulating pipe bodies are the same.
In the technical scheme, the insulating support rod is formed by fixedly connecting three insulating pipe bodies.
In the technical scheme, the insulating closed hook and the insulating open hook are both provided with connecting rods, the insulating supporting rods are provided with through holes which are perpendicular to the axes of the insulating supporting rods and through which the connecting rods pass, and one ends of the connecting rods, which extend out of the through holes, are provided with locking nuts.
In the above technical solution, the horizontal portion and the vertical portion are of an integral structure.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model discloses a set up the insulating support rod of taking insulating couple, can be used for arrester direct current test on-the-spot wiring, be used for pulling open the contained angle between high-pressure test lead wire and the arrester, satisfy the experimental demand, ensure that the test data is accurate reliable;
2. the utility model discloses a set up electrically conductive horizontal part and the vertical part of taking the bayonet socket, after the direct current test, with the horizontal part joint on the high-pressure output of doubly pressing a section of thick bamboo, hang the couple of discharging rod again on the vertical part to can realize the short circuit ground connection of high-pressure part and effectively discharge after the direct current test, guarantee personnel's safety.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage testing lead traction mechanism according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a discharge supporting mechanism according to a first embodiment of the present invention.
Fig. 3 is a schematic view of the installation of the base according to the first embodiment of the present invention.
Fig. 4 is a schematic view illustrating connection of an insulating pipe according to a first embodiment of the present invention.
Fig. 5 is a schematic view illustrating installation of a closed hook according to a first embodiment of the present invention.
Fig. 6 is a schematic view of a state of use of the high-voltage testing lead pulling mechanism according to the first embodiment of the present invention.
Fig. 7 is a schematic view of a state of use of the discharge supporting mechanism according to the first embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a high-voltage testing lead traction mechanism according to the second embodiment of the present invention.
Fig. 9 is a schematic view of the installation of the base according to the second embodiment of the present invention.
Fig. 10 is a schematic view of the connection of the insulating pipe according to the second embodiment of the present invention.
Wherein: 1. an insulating support rod; 2. a base; 3. an insulating tube body; 4. an insulating closed hook; 5. an insulated open hook; 6. a horizontal portion; 7. a vertical portion; 8. a first bayonet; 9. a second bayonet; 10. clamping a hoop; 11. a threaded locking sleeve; 12. a connecting rod; 13. locking the nut; 14. and a bolt is embedded.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the first embodiment is as follows:
the utility model discloses an auxiliary device for the direct current test of a lightning arrester, which comprises a high-voltage test lead traction mechanism and a discharge supporting mechanism;
referring to fig. 1, the high-voltage test lead traction mechanism comprises an insulating support rod 1 and a base 2 detachably connected with the insulating support rod, wherein the insulating support rod is erected on the ground through the base and is formed by connecting and fixing a plurality of insulating pipe bodies 3, an insulating closed hook 4 is detachably mounted at the top of the insulating support rod, and at least one insulating open hook 5 is detachably mounted in the middle of the insulating support rod; the insulating closed hook is used for fixing a high-voltage test lead, and the insulating open hook is used for winding a lengthy high-voltage test lead on the support rod; specifically, the intermediate position demountable installation of insulating bracing piece has two insulating open hooks, wherein, the opening that is located the insulating open hook of top up, and the opening that is located the insulating open hook of below is down, and lengthy high-voltage testing lead wire strides and winds on two insulating open hooks, and because two openings set up back to back, and the slippage is difficult after the lengthy high-voltage testing lead wire winds well.
Referring to fig. 2, the discharge support mechanism includes a conductive horizontal portion 6 and a vertical portion 7, the horizontal portion and the vertical portion are perpendicular to each other and form an L-shaped structure, the horizontal portion and the vertical portion are an integrated structure, a first bayonet 8 for a high-voltage output end on the voltage doubling cylinder to be clamped in is arranged at an end portion of the horizontal portion, and a second bayonet 9 for a hook of a discharge rod to be clamped in is arranged at an end portion of the vertical portion;
the caliber of the first bayonet is larger than the outer diameter of the high-voltage output end of the voltage doubling cylinder, and the caliber of the second bayonet is larger than the diameter of the hook on the discharge rod.
Referring to fig. 3, in the present embodiment, a clamp 10 having a bolt is provided on the base, and the lower portion of the insulating support rod is inserted into the clamp and locked by the bolt.
In this embodiment, the base is discus formula base, through using discus formula base for high-pressure test lead wire drive mechanism can be used for smooth cement ground.
Referring to fig. 4, in this embodiment, the insulating support rod is formed by fixedly connecting a plurality of insulating tube bodies in a sleeved manner, and the outer diameter of the tube body located above is smaller than the inner diameter of the tube body located below.
Specifically, two adjacent the junction of insulating body is provided with screw locking cover 11, and this structure is the structure commonly used, and is unanimous with the telescopic clothing pole structure that props commonly used at present. When the thread locking sleeve is unscrewed, the two adjacent insulating pipe bodies can slide relatively; when the thread locking sleeve is screwed, the adjacent two insulating pipe bodies are locked.
More specifically, the insulating support rod is formed by connecting and fixing three insulating pipe bodies.
Referring to fig. 5, in this embodiment, the insulating closed hook and the insulating open hook are both provided with a connecting rod 12, the insulating supporting rod is provided with a through hole perpendicular to the axis of the insulating supporting rod and through which the connecting rod passes, and one end of the connecting rod extending out of the through hole is provided with a locking nut 13.
Referring to fig. 6 shows, the utility model discloses high-voltage testing lead wire drive mechanism is when using, on being connected to the arrester with high-voltage testing lead wire's one end, the other end in proper order through high-voltage testing lead wire drive mechanism's insulating couple of remaining silent and insulating opening couple with the lengthy lead wire fixed with the winding on insulating support rod to pull open the contained angle between high-voltage testing lead wire and the arrester by insulating support rod, satisfy experimental demand, ensure that the experimental data is accurate reliable. On the other hand, as shown in fig. 7, the horizontal part of the discharging support mechanism is clamped on the high-voltage output end of the voltage doubling cylinder and is pressed and fixed by a nut below the leakage current meter, and after the direct current test is completed, the hook of the discharging rod is hung on the vertical part of the discharging support mechanism, so that the discharging requirement is met, the residual charge is fully eliminated, and the personal safety of the wiring dismantling personnel is ensured.
Example two:
the utility model discloses an auxiliary device for the direct current test of a lightning arrester, which comprises a high-voltage test lead traction mechanism and a discharge supporting mechanism;
referring to fig. 8, the high-voltage test lead traction mechanism comprises an insulating support rod 1 and a base 2 detachably connected with the insulating support rod, the insulating support rod is erected on the ground through the base, the insulating support rod is formed by connecting and fixing a plurality of insulating tube bodies 3, an insulating closed hook 4 is detachably mounted at the top of the insulating support rod, and at least one insulating open hook 5 is detachably mounted in the middle of the insulating support rod; the insulating closed hook is used for fixing a high-voltage test lead, and the insulating open hook is used for winding a lengthy high-voltage test lead on the support rod; specifically, two insulating opening hooks are detachably mounted in the middle of the insulating support rod.
Referring to fig. 2, the discharge support mechanism includes a conductive horizontal portion 6 and a vertical portion 7, the horizontal portion and the vertical portion are perpendicular to each other and form an L-shaped structure, the horizontal portion and the vertical portion are an integrated structure, a first bayonet 8 for a high-voltage output end on the voltage doubling cylinder to be clamped in is arranged at an end portion of the horizontal portion, and a second bayonet 9 for a hook of a discharge rod to be clamped in is arranged at an end portion of the vertical portion;
the caliber of the first bayonet is larger than the outer diameter of the high-voltage output end of the voltage doubling cylinder, and the caliber of the second bayonet is larger than the diameter of the hook on the discharge rod.
Referring to fig. 9, in this embodiment, the base is provided with an embedded bolt 14, the bottom of the insulating support rod is provided with a bolt hole with an internal thread, and the insulating support rod and the base are fixed by the matching of the embedded bolt and the bolt hole.
In this embodiment, the base is ground insertion type base, for example can adopt the three-fork structure for high-voltage testing lead wire drive mechanism can be used for uneven meadow or grit ground.
Referring to fig. 10, in this embodiment, the insulating support rod is formed by connecting and fixing a plurality of insulating tube bodies in a threaded manner, and the outer diameters of the insulating tube bodies are the same. Through the structure that adopts threaded connection, can freely increase and decrease insulating body quantity in the insulating support pole to realize the flexibility of insulating support frame length changeable, and the insulating body of dismantling can pack and take away, does not account for the place, conveniently carries, and this structure does not have special requirement to the length of each insulating body, as long as through threaded connection can, it can be arbitrary length.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides an auxiliary device is used in lightning arrester direct current test which characterized in that: the device comprises a high-voltage test lead traction mechanism and a discharge supporting mechanism;
the high-voltage test lead traction mechanism comprises an insulation support rod and a base detachably connected with the insulation support rod, the insulation support rod is erected on the ground through the base, the insulation support rod is formed by connecting and fixing a plurality of insulation pipe bodies, an insulation closed hook is detachably mounted at the top of the insulation support rod, and at least one insulation open hook is detachably mounted in the middle of the insulation support rod;
the discharge support mechanism comprises a conductive horizontal part and a vertical part, the horizontal part and the vertical part are mutually vertical to each other and are of an L-shaped structure, a first bayonet for clamping a high-voltage output end on the voltage doubling cylinder is arranged at the end part of the horizontal part, and a second bayonet for clamping a hook of a discharge rod is arranged at the end part of the vertical part;
the caliber of the first bayonet is larger than the outer diameter of the high-voltage output end of the voltage doubling cylinder, and the caliber of the second bayonet is larger than the diameter of the hook on the discharge rod.
2. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the base is provided with a clamp with a bolt, and the lower portion of the insulating support rod is inserted into the clamp and locked and fixed by the bolt.
3. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the base is provided with an embedded bolt, the bottom of the insulating support rod is provided with a bolt hole with internal threads, and the insulating support rod and the base are fixed through the matching of the embedded bolt and the bolt hole.
4. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the base is a discus type base or a ground insertion type base.
5. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the insulating support rod is formed by fixedly sleeving a plurality of insulating pipe bodies, and the outer diameter of the pipe body located above is smaller than the inner diameter of the pipe body located below.
6. The auxiliary device for the direct current test of the lightning arrester according to claim 5, characterized in that: and a thread locking sleeve is arranged at the joint of two adjacent insulating pipe bodies.
7. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the insulating support rod is formed by fixedly connecting a plurality of insulating pipe bodies in a threaded manner, and the outer diameters of the insulating pipe bodies are the same.
8. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the insulating support rod is formed by connecting and fixing three insulating pipe bodies.
9. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the insulating hook with the closed opening and the insulating hook with the open opening are both provided with connecting rods, the insulating supporting rods are provided with through holes which are perpendicular to the axes of the insulating supporting rods and through which the connecting rods penetrate, and one ends of the connecting rods, which extend out of the through holes, are provided with locking nuts.
10. The auxiliary device for the direct current test of the lightning arrester according to claim 1, characterized in that: the horizontal part and the vertical part are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422279.3U CN211348316U (en) | 2019-12-30 | 2019-12-30 | Auxiliary device for lightning arrester direct current test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422279.3U CN211348316U (en) | 2019-12-30 | 2019-12-30 | Auxiliary device for lightning arrester direct current test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211348316U true CN211348316U (en) | 2020-08-25 |
Family
ID=72103448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922422279.3U Expired - Fee Related CN211348316U (en) | 2019-12-30 | 2019-12-30 | Auxiliary device for lightning arrester direct current test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211348316U (en) |
-
2019
- 2019-12-30 CN CN201922422279.3U patent/CN211348316U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 Termination date: 20211230 |