CN218213367U - Device for shielding interference of dirt on outer surface of porcelain sleeve on leakage current of lightning arrester - Google Patents
Device for shielding interference of dirt on outer surface of porcelain sleeve on leakage current of lightning arrester Download PDFInfo
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- CN218213367U CN218213367U CN202221728438.8U CN202221728438U CN218213367U CN 218213367 U CN218213367 U CN 218213367U CN 202221728438 U CN202221728438 U CN 202221728438U CN 218213367 U CN218213367 U CN 218213367U
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Abstract
The utility model discloses a device of filth to arrester leakage current interference of shielding porcelain bushing surface relates to arrester leakage current test technical field, include: the lightning arrester comprises at least one lightning arrester porcelain sleeve outer surface shielding rod, wherein the leading-out wire connecting pipe lightning arrester outer surface shielding rod comprises an insulating sleeve, a current leading-out device and a conducting device, one end of the leading-out wire connecting pipe conducting device is detachably and fixedly connected with the leading-out wire connecting pipe lightning arrester outer surface and can conduct electricity, the leading-out wire connecting pipe insulating sleeve is sleeved on the outer side of the leading-out wire connecting pipe conducting device, and the leading-out wire connecting pipe current leading-out device is used for fixedly connecting with the leading-out wire connecting pipe conducting rod to lead current in the leading-out wire connecting pipe conducting rod into the ground, so that the pollution leakage current on the outer surface of the porcelain sleeve is shielded, the current flowing into an ammeter only contains the lightning arrester body leakage current, and the lightning arrester resistance leakage current is electrified, and the online test result is accurate.
Description
Technical Field
The utility model relates to an arrester leakage current test technical field especially relates to a device of filthy interference to arrester leakage current of shielding porcelain bushing surface.
Background
In order to prevent the occurrence of an arrester operation accident, live online test needs to be performed on the resistive leakage current of the arrester in operation, and the operation condition of the arrester is judged according to the tested resistive leakage current and the like. However, the lightning arrester in operation is usually in an outdoor environment with real-time changes, and the live detection of the leakage current is necessarily influenced by multiple outdoor environmental factors. Especially, when dirt is attached to the outer surface of the porcelain bushing of the lightning arrester, leakage current developing along the dirt is generated on the surface of the porcelain bushing and enters detection instrument equipment to cause a large test value. This will influence the accuracy of evaluation result, and the tester can not be based on the measuring result accurate judgement arrester degradation degree. There is a need for a device that can eliminate the influence of dirt attached to the outer surface of the porcelain bushing of the lightning arrester on the measurement result.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device of filthy to arrester leakage current interference of shielding insulator surface to solve the problem that above-mentioned prior art exists, simple structure has shielded the filthy leakage current of insulator surface, makes the electric current that flows into the ampere meter only contain arrester body leakage current, makes arrester resistance leakage current electrified accurate on-line measuring result.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a device for shielding the interference of filth on the outer surface of a porcelain bushing to the leakage current of an arrester, which comprises: at least one arrester porcelain bushing surface shielding pole, arrester porcelain bushing surface shielding pole includes insulating sleeve, electric current eduction gear and electric installation, electric installation's one end with arrester porcelain bushing surface can dismantle ground fixed connection and can electrically conduct, the insulating sleeve cover is located electric installation's the outside, electric current eduction gear be used for with conducting rod fixed connection will electric current in the conducting rod introduces the ground.
Preferably, the conducting device comprises two conducting rods, each conducting rod comprises a straight rod and a semicircular arc rod, one end of each semicircular arc rod is fixedly connected with the top end of the corresponding straight rod in a perpendicular mode, the two conducting rods are sleeved with insulating sleeves, the outer sides of the straight rods extend out of the two ends of the straight rods, the two conducting rods are located on the same side, the semicircular arc rods rotate, and the ends, far away from the straight rods, of the semicircular arc rods can be closed or opened.
Preferably, one end of each of the two semicircular arc rods, which is far away from the straight rod, is magnetic, and the two semicircular arc rods are automatically attracted together to form a circular ring when rotating to approach.
Preferably, the arrester porcelain bushing outer surface shielding rod still includes two insulating hand protection sleeves, each insulating hand protection sleeve is established respectively and is fixed in one the straight-bar is kept away from the tip of semicircle arc pole.
Preferably, the current leading-out device comprises a conducting rod leading-out flat iron and a first leading-out wire junction tube, the conducting rod leading-out flat iron is fixedly arranged at the end part, far away from the semicircular arc rod, of the straight rod, the leading-out wire junction tube and the conducting rod leading-out flat iron are integrally arranged, and the first leading-out wire junction tube is used for penetrating through the insulating sleeve and connected with a grounded wire.
Preferably, the leakage current integrated grounding box further comprises an insulation shell, an insulation bottom plate and a plurality of second leading-out wire connecting tubes, each second leading-out wire connecting tube is electrically connected inside the leakage current integrated grounding box, and one second leading-out wire connecting tube is used for connecting a grounded wire.
Preferably, the integrated grounding box for leakage current further comprises a conductive flat iron and a plurality of insulating struts, the insulating struts and the conductive flat iron are arranged inside the integrated grounding box for leakage current, the bottom end of each insulating strut is fixedly connected with the insulating bottom plate, the top end of each insulating strut is fixedly connected with the conductive flat iron, a plurality of branches are arranged on the conductive flat iron, and each branch is respectively connected with one second lead-out wire connecting pipe and can conduct electricity.
Preferably, the number of the shielding rods on the outer surface of the porcelain sleeve of the lightning arrester is three, and the number of the second lead-out wire connecting tubes on the leakage current integrated grounding box is four.
The utility model discloses for prior art gain following technological effect:
the utility model provides a dirty device to arrester leakage current interference of shielding porcelain bushing surface, the surface and the ground of arrester porcelain bushing are connected to arrester porcelain bushing surface shielding rod, the dirty electric current of porcelain bushing surface will flow through is leading-in to the ground, concrete through with the dismantled ground fixed connection of electric installation with the porcelain bushing surface, it is connected with the wire electricity of ground connection to pass through electric current eduction gear again, just can be with the leading-in ground of the dirty electric current that produces of surface of arrester porcelain bushing, solved in the electrified detection of arrester, the leakage current that produces the dirty development of porcelain bushing surface enters into detection instrument equipment and causes the big problem of test value partially, moreover, the steam generator is simple in structure, the accuracy of the electrified test result of arrester resistance leakage current is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a shielding rod on the outer surface of a porcelain bushing of an arrester according to the present invention;
fig. 2 is a schematic structural view of the inside of the lower sleeve of the shielding rod on the outer surface of the porcelain bushing of the arrester according to the present invention;
fig. 3 is a schematic structural diagram of the current integration grounding box provided by the present invention;
fig. 4 is a schematic structural diagram of the inside of the current integration grounding box provided by the present invention;
fig. 5 is a schematic view of the leakage current of the lightning arrester of the device for shielding the interference of the filth on the outer surface of the porcelain bushing to the leakage current of the lightning arrester, which is provided by the utility model;
fig. 6 is a schematic view of the device for shielding the interference of the filth on the outer surface of the porcelain bushing to the leakage current of the lightning arrester.
In the figure: 100. a shielding rod is arranged on the outer surface of the porcelain bushing of the lightning arrester; 1. a semicircular arc rod; 2. a straight rod; 3. a conductive rod; 4. an insulating sleeve; 5. leading out flat iron from the conducting rod; 6. a first lead-out wire connecting tube; 7. an insulating hand guard sleeve; 8. a second lead-out wire connecting tube; 9. an insulating housing; 10. an insulating base plate; 11. an insulating support; 12. conductive flat iron.
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 utility model aims at providing a device of filthy to arrester leakage current interference of shielding insulator surface to solve the problem that above-mentioned prior art exists, simple structure has shielded the filthy leakage current of insulator surface for the electric current that flows into the ampere meter only contains arrester body leakage current, makes arrester resistance leakage current electrified online test result accurate.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The utility model provides a device for shielding the interference of filth on the outer surface of a porcelain bushing to the leakage current of an arrester, which comprises: at least one arrester porcelain bushing outer surface shielding rod 100, the arrester porcelain bushing outer surface shielding rod 100 comprises an insulating sleeve 4, a current leading-out device and two conducting rods 3, each conducting rod 3 comprises a straight rod 2 and a semicircular arc rod 1, one end of each semicircular arc rod 1 is vertically and fixedly connected with the top end of each straight rod 2, the insulating sleeve 4 is sleeved outside the straight rods 2 of the two conducting rods 3, two ends of each straight rod 2 extend out of the insulating sleeve 4, the semicircular arc rods 1 of the two conducting rods 3 are positioned on the same side, one end of each straight rod 2 far away from the semicircular arc rod 1 is rotated to enable the two semicircular arc rods 1 to be closed or opened, the current leading-out device is used for being fixedly connected with the conducting rods 3 to lead current in the conducting rods 3 into the ground, and the arrester porcelain bushing outer surface shielding rod 100 is connected with the outer surface of the arrester porcelain bushing and the ground, the current that will flow through porcelain bushing surface dirt channels into the ground, it is specific can make two semicircle arc poles 1 form a cover and establish the ring at the porcelain bushing surface through rotating conducting rod 3, be connected conducting rod 3 with the ground through the wire again, just can lead to the ground with the dirty leading-in ground of current that produces of surface of arrester porcelain bushing, solved in arrester live-line detection, the leakage current that produces along the dirty development of porcelain bushing surface enters into detection instrument equipment and causes the big problem of test value partially, moreover, the steam generator is simple in structure, improve the accuracy of the electrified on-line test result of arrester resistive leakage current, the arrester generally sets up in the eminence, the setting up of straight-bar 2 makes things convenient for operating personnel just can establish two semicircle arc poles 1 covers at the porcelain bushing surface subaerial, need not live the tool that climbs, moreover, the steam generator is simple in structure, high durability and convenient use.
In a specific embodiment, the insulating sleeve 4 is a glass fiber reinforced plastic epoxy resin insulating sleeve 4, the center of the sleeve is hollowed, the inner diameter of the sleeve is 12mm, the conducting rod 3 is a 304 stainless steel conducting rod 3, the outer diameter of the conducting rod 3 is 5mm, the straight rod 2 is partially wrapped by the insulating sleeve 4, the semicircular arc rod 1 is completely exposed, and the semicircular arc rod is completely contacted with a ring sleeved on the outer surface of the shielding porcelain sleeve when the sleeve is sleeved on the outer surface of the shielding porcelain sleeve.
In a preferred embodiment, the ends of the two semicircular arc rods 1 far away from the straight rod 2 are provided with magnetism, the two semicircular arc rods 1 are automatically attracted together to form a circular ring when rotating to approach, and the end parts of the semicircular arc rods 1 are provided with magnetism to keep the attraction state, so that the conducting rod 3 can continuously and stably guide the current generated by the dirt on the outer surface of the porcelain sleeve of the lightning arrester into the ground.
In a preferred embodiment, arrester porcelain shell surface shielding pole 100 still includes two insulating hand protector sleeves 7, each insulating hand protector sleeve 7 overlaps respectively and establishes the tip that is fixed in a straight-bar 2 and keeps away from semicircle arc pole 1, it makes two semicircle arc poles 1 closed or part to need operating personnel to rotate the rotation that insulating hand protector sleeve 7 drove conducting rod 3, insulating hand protector sleeve 7 is the insulating short hand protector sleeve of glass steel epoxy, the internal diameter is 5mm, the external diameter is 6mm, the insulating short hand protector sleeve of glass steel epoxy tightly detains 2 afterbody of straight-bars at stainless steel conducting rod 3, can drive stainless steel conducting rod 3 rotatoryly through rotatory short hand protector sleeve, thereby realize 1 deciliter of semicircle arc pole.
In a preferred embodiment, the current leading-out device comprises a conducting rod 3 leading-out flat iron 5 and a first leading-out wire junction tube 6, the conducting rod 3 leading-out flat iron 5 is fixedly arranged at the end part, far away from the semicircular arc rod 1, of a straight rod 2, the leading-out wire junction tube and the conducting rod 3 leading-out flat iron 5 are integrally arranged, the first leading-out wire junction tube 6 is used for penetrating through an insulating sleeve 4 to be connected with a grounded wire, the specific conducting rod 3 leading-out flat iron 5 is in a semicircular arc or circular arc shape wrapping the outer side of the straight rod 2, and preferably, the thickness of the conducting rod 3 leading-out flat iron 5 is 1mm; the aperture of the lead-out wire connecting tube is 2mm.
In a preferred embodiment, the device for shielding interference of dirt on the outer surface of the porcelain bushing on leakage current of the lightning arrester further comprises a leakage current integrated grounding box, the leakage current integrated grounding box comprises an insulating shell 9, an insulating bottom plate 10 and a plurality of second lead-out wire connecting tubes 8, each second lead-out wire connecting tube 8 is electrically connected inside the leakage current integrated grounding box, one second lead-out wire connecting tube 8 is used for connecting a grounded wire, the leakage current integrated grounding box can centralize a plurality of lightning arrester porcelain bushing outer surface shielding rods 100 which need to be grounded together, the structure is simple, the situation that each lightning arrester porcelain bushing outer surface shielding rod 100 is provided with a grounding device is avoided, and the insulating shell 9 is a glass fiber reinforced plastic epoxy resin insulating shell 9; the thickness of the insulating bottom plate 10 is 5mm; the aperture of the second lead-out wire connecting tube 8 is 2mm, and the second lead-out wire connecting tube 8 is connected with the first lead-out wire connecting tube 6 through a wire.
In a preferred embodiment, the leakage current integrated grounding box further comprises a conductive flat iron 12 and a plurality of insulating struts 11, the insulating struts 11 and the conductive flat iron 12 are arranged inside the leakage current integrated grounding box, the bottom end of each insulating strut 11 is fixedly connected with the insulating bottom plate 10, the top end of each insulating strut is fixedly connected with the conductive flat iron 12, a plurality of branches are arranged on the conductive flat iron 12, each branch is connected with one second leading-out wire connecting pipe 8, one insulating strut 11 is arranged below each branch, and the insulating struts 11 are glass fiber reinforced plastic epoxy resin insulating struts 11; the conductive flat iron 12 is 304 stainless steel flat iron with the thickness of 2mm, a second leading-out wire connecting tube 8 just corresponds to one branch of the conductive flat iron 12, and the second leading-out wire connecting tube 8 can be communicated with the corresponding branch in a guiding insertion mode.
In a preferred embodiment, the number of the lightning arrester porcelain bushing outer surface shielding rods 100 is three, the number of the second leading-out wire connecting tubes 8 on the leakage current integrated grounding box is four, the three lightning arrester porcelain bushing outer surface shielding rods 100 and the four second leading-out wire connecting tubes 8 can enable the device to realize a function of simultaneously shielding the interference of the outer surface dirt of the three-phase lightning arrester porcelain bushing to the leakage current of the lightning arrester, the simple three-phase simultaneous test function of the leakage current live detection device on the market can be matched, so that the lightning arrester live detection test has more convenience and practicability, generally, each group of lightning arresters of the transformer substation contains three phases: a looks, B looks, C looks, at first, rotatory epoxy resin insulation short hand protector sleeve makes 3 upper portions of semi-ring conducting rod join and forms the ring, hang arrester porcelain bushing surface shielding rod 100 on the arrester porcelain bushing, then, after ABC three-phase hangs respectively, insert first wire wiring hole with wire one end, the other end of three wires inserts second wire wiring hole, finally, take another wire, with the one end ground connection of wire, the other end of wire inserts the fourth wire hole of second wire wiring hole, after the experiment is accomplished, rotatory figure epoxy resin insulation short hand protector sleeve makes 3 upper portions of semi-ring conducting rod separate, extract each wire hand protector.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. A device for shielding the interference of dirt on the outer surface of a porcelain bushing to the leakage current of a lightning arrester is characterized in that: the method comprises the following steps:
at least one arrester porcelain bushing surface shielding pole, arrester porcelain bushing surface shielding pole includes insulating sleeve, electric current eduction gear and electric installation, electric installation's one end with arrester porcelain bushing surface can dismantle ground fixed connection and can electrically conduct, the insulating sleeve cover is located electric installation's the outside, electric current eduction gear be used for with electric installation fixed connection will electric current among the electric installation introduces the ground.
2. The device for shielding the interference of the filth on the outer surface of the porcelain bushing on the leakage current of the lightning arrester as claimed in claim 1, wherein: the conducting device comprises two conducting rods, the conducting rods comprise a straight rod and semicircular arc rods, one end of each semicircular arc rod is fixedly connected with the top end of the straight rod in a perpendicular mode, the insulating sleeves are sleeved on the outer sides of the straight rod, the two ends of the straight rod extend out of the insulating sleeves, the two conducting rods are located on the same side, the semicircular arc rods are rotated, the straight rod is far away from one end of each semicircular arc rod, and the semicircular arc rods are closed or opened.
3. The device for shielding the interference of the filth on the outer surface of the porcelain bushing on the leakage current of the lightning arrester as claimed in claim 2, wherein: the ends, far away from the straight rod, of the two semicircular arc rods are magnetic, and the two semicircular arc rods are automatically attracted together to form a circular ring when rotating to approach.
4. The device for shielding the interference of the filth on the outer surface of the porcelain bushing on the leakage current of the lightning arrester as claimed in claim 3, wherein: the lightning arrester porcelain bushing outer surface shielding rod further comprises two insulating hand guard sleeves, and each insulating hand guard sleeve is respectively sleeved with and fixed to one end portion, far away from the semicircular arc rod, of the straight rod.
5. The device for shielding the interference of the filth on the outer surface of the porcelain bushing on the leakage current of the lightning arrester as claimed in claim 4, wherein: the current leading-out device comprises a conducting rod leading-out flat iron and a first leading-out wire junction tube, the conducting rod leading-out flat iron is fixedly arranged at one end part of the straight rod far away from the semicircular arc rod, the first leading-out wire junction tube and the conducting rod leading-out flat iron are integrally arranged, and the first leading-out wire junction tube is used for penetrating through the insulating sleeve and is connected with a grounded wire.
6. The device for shielding the interference of the filth on the outer surface of the porcelain bushing on the leakage current of the lightning arrester as claimed in claim 5, wherein: the leakage current integrated grounding box comprises an insulating shell, an insulating bottom plate and a plurality of second leading-out wire connecting tubes, wherein each second leading-out wire connecting tube is electrically connected with the inside of the leakage current integrated grounding box, and one second leading-out wire connecting tube is used for connecting a grounded wire.
7. The device for shielding the interference of the filth on the outer surface of the porcelain bushing on the leakage current of the lightning arrester as claimed in claim 6, wherein: the leakage current integrated grounding box further comprises a conductive flat iron and a plurality of insulating support columns, the insulating support columns and the conductive flat iron are arranged inside the leakage current integrated grounding box, the bottom end of each insulating support column is fixedly connected with the insulating bottom plate, the top end of each insulating support column is fixedly connected with the conductive flat iron, a plurality of branches are arranged on the conductive flat iron, and each branch is respectively connected with one second lead-out wire connecting pipe and can conduct electricity.
8. The device for shielding the interference of the filth on the outer surface of the porcelain bushing on the leakage current of the lightning arrester as claimed in claim 7, is characterized in that: the number of the shielding rods on the outer surface of the porcelain bushing of the lightning arrester is three, and the number of the second lead-out wire connecting tubes on the leakage current integrated grounding box is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221728438.8U CN218213367U (en) | 2022-07-05 | 2022-07-05 | Device for shielding interference of dirt on outer surface of porcelain sleeve on leakage current of lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221728438.8U CN218213367U (en) | 2022-07-05 | 2022-07-05 | Device for shielding interference of dirt on outer surface of porcelain sleeve on leakage current of lightning arrester |
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| CN218213367U true CN218213367U (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221728438.8U Active CN218213367U (en) | 2022-07-05 | 2022-07-05 | Device for shielding interference of dirt on outer surface of porcelain sleeve on leakage current of lightning arrester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115825502A (en) * | 2023-02-13 | 2023-03-21 | 国网吉林省电力有限公司通化供电公司 | High-altitude wiring device for live test of lightning arrester |
-
2022
- 2022-07-05 CN CN202221728438.8U patent/CN218213367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115825502A (en) * | 2023-02-13 | 2023-03-21 | 国网吉林省电力有限公司通化供电公司 | High-altitude wiring device for live test of lightning arrester |
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