CN104133161A - electrical test fixture for lightning arrester - Google Patents
electrical test fixture for lightning arrester Download PDFInfo
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- CN104133161A CN104133161A CN201310197520.1A CN201310197520A CN104133161A CN 104133161 A CN104133161 A CN 104133161A CN 201310197520 A CN201310197520 A CN 201310197520A CN 104133161 A CN104133161 A CN 104133161A
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- lightning arrester
- outer cylinder
- base
- ring
- test frock
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Abstract
The invention relates to the technical field of an electrical test of a lightning arrester and particularly relates to an electrical test fixture for a lightning arrester. The electrical test fixture comprises an outer cylinder extending along the vertical direction; the outer cylinder is internally provided with a conductive bar; the periphery of the conductive bar is sleeved with a cylindrical shielding cover; and the shielding cover is arranged inside the outer cylinder and supported and fixed by the outer cylinder. The distribution of the electric field inside the electrical test fixture for the lightning arrester can be greatly improved, inner discharge can be effectively avoided, the inner electric field is uniformly distributed, partial discharge interference in the electrical test of the tested lightning arrester can be reduced to the minimum, the partial discharge index can be controlled within the specified range, and the test efficiency is improved.
Description
Technical field
The present invention relates to the electric test technical field of lightning arrester, particularly a kind of lightning arrester electric test frock.
Background technology
In fully closed combined electric unit, in the electric test process of tank-type lightning arrester, the alternating current-direct current high pressure that alternating current-direct current equipment produces must be connected with lightning arrester high-pressure side by lightning arrester electric test frock, and the effect of lightning arrester electric test frock is interior conduction external insulation.As shown in Figure 1, existing lightning arrester electric test frock comprises the outer cylinder body being made up of insulating sleeve 11 and transition cylindrical shell 12, transition cylindrical shell 12 is fixedly installed on the lower end of insulating sleeve 11, in outer cylinder body, be provided with contact rod 13, the upper end of insulating sleeve 11 is provided with upper cover plate 15, and the upside of upper cover plate 15 is installed with wiring annulus 14; In use, hi-line is wrapped on wiring annulus 14 and is measured, be prone to the problems such as hi-line is loosening, loose contact, landing; In addition, in use, this lightning arrester electric test frock inside and insulating sleeve upper end cover place are prone to electric discharge phenomena, internal electric field and external electrical field distribute all inhomogeneous, can affect the partial discharge test of lightning arrester, the quality of tested lightning arrester can not obtain good control, cost of idleness, and test efficiency is low.
Summary of the invention
The lightning arrester electric test frock that the object of the present invention is to provide a kind of internal electric field to be evenly distributed.
To achieve these goals, the present invention adopts following technical scheme: lightning arrester electric test frock, comprise the outer cylinder body extending along the vertical direction, in outer cylinder body, be provided with contact rod, described contact rod outer race is equipped with the radome of tubular, and radome is arranged at the inside of outer cylinder body and is supported fixing by outer cylinder body.
Described outer cylinder body comprises the insulating sleeve and the transition cylindrical shell that distribute along the vertical direction, described radome comprises inner shield and the external shield of coaxial setting, external shield is arranged in insulating sleeve, and interior insulating boot upper end is located in insulating sleeve and through external shield and is stretched into downwards in transition cylindrical shell.
Between the upper surface of the lower surface of insulating sleeve and transition cylindrical shell, be fixedly equipped with ring flange, the lower end of external shield is supported and is fixedly assemblied on the upper surface of ring flange, on the lower surface of ring flange, be installed with stretch into downwards in transition cylindrical shell, shell-like, for the insulating base of plug-in mounting inner shield, the lower ending opening of insulating base is less than upper end, and the lower ending opening place that is fixedly assemblied in insulating base is supported in the lower end of inner shield.
Lightning arrester electric test frock comprises the upper cover plate that is arranged at insulating sleeve upper end, is fixedly equipped with grading ring on the upper surface of upper end cover.
Lightning arrester electric test frock comprises the termination that is fixedly arranged on upper cover plate upside, and termination comprises terminal block, and terminal block is provided with for the wiring hole of plug-in mounting hi-line with for fixing the set bolt of hi-line.
The lower end of external shield is installed with the first base of annular, the outward flange of the first base has along the circumferential direction equally distributed protuberance, described protuberance and corresponding first mounting hole that offers on ring flange upper surface, the upper surface of ring flange and the first base achieve a fixed connection by the bolt being plugged in the first mounting hole, on the upper surface of insulating base and ring flange, correspondence offers the second mounting hole, the second mounting hole correspondence is arranged in the gap between adjacent described protuberance, the lower surface of ring flange and the lower surface of insulating base achieve a fixed connection by the bolt being plugged in the second mounting hole, the lower end of inner shield is installed with the second base of annular, the upper surface of the lower surface of insulating base and the second base is bolted to connection.
Grading ring is annular tubular structure, grading ring comprises grading ring and lower uniform pressure ring, upper and lower grading ring distributes along the vertical direction, on upper cover plate, be fixed with upper and lower support by bolt, upper and lower grading ring is welded to connect with upper bracket and lower carriage respectively, and upper and lower grading ring is fixedly assemblied on upper cover plate by upper and lower support respectively.
Beneficial effect of the present invention: because the inside of lightning arrester electric test frock of the present invention is provided with the radome of the tubular that is set in contact rod periphery, the Potential distribution that can make outer cylinder body inside therefrom mind-set is evenly successively decreased outward gradually, therefore, the present invention can improve the Electric Field Distribution of lightning arrester electric test frock inside greatly, thereby effectively avoid internal discharge, internal electric field is evenly distributed, is down to minimum to the shelf depreciation interference in tested lightning arrester electric test; Can the office of making put in the scope of regulation of index control, improved test efficiency simultaneously.
Further, insulating boot comprises interior insulating boot and external insulation cover, can make being more evenly distributed of insulating sleeve internal electric field, it is that interior insulating boot can improve the Electric Field Distribution of transition inner barrel in order effectively to ensure the non-uniform face that between transition cylindrical shell and insulating sleeve, transition produces that interior insulating boot stretches into downwards in transition cylindrical shell; Can effectively shield most electric field intensity by inner shield, simultaneously in order to ensure this transition stably, auxiliary external shield can avoid transition coupling part, upper and lower space to produce the probability of electric discharge, by having become face-to-face electric field in the face of some electric field; It is for ensureing that external shield is in a potential level that inner shield is longer than radome, is conducive to electric field stable.
Further, the lower end of external shield is supported and is fixedly assemblied on the upper surface of ring flange, inner shield is supported and is fixedly assemblied on ring flange by insulating base, is insulated seat isolation between inside and outside radome, has effectively ensured that the insulation between inside and outside shielding is good; In assembling process, first ring flange is assemblied in to the lower surface of insulating sleeve, again insulating base is assemblied on the lower surface of ring flange, then external shield is fixedly assemblied on the upper surface of ring flange, then inner shield is fixedly assemblied in to the lower ending opening place of insulating base, then transition cylindrical shell is set in to the peripheral of inner shield lower end and transition cylindrical shell is fixedly connected with ring flange, this assembling process is simple and convenient.
Further, grading ring can avoid the upper end cover place of insulating sleeve to occur the problem such as edge flashing, electric discharge, can improve external electrical field and distribute, and external electrical field is evenly distributed, and can the office of making put index control within the limits prescribed simultaneously, has improved test efficiency.
Further, the set bolt on terminal block can be firmly fixing by hi-line, there will not be loosening, contact bad problem.
Further, grading ring comprises upper and lower grading ring, and upper and lower grading ring is detachable body structure, is convenient to transport.
Brief description of the drawings
Fig. 1 is the structural representation of existing lightning arrester electric test frock;
Fig. 2 is the structural representation of a kind of embodiment of lightning arrester electric test frock of the present invention.
Embodiment
A kind of embodiment of lightning arrester electric test frock of the present invention, as shown in Figure 2: lightning arrester electric test frock comprises the outer cylinder body extending along the vertical direction, outer cylinder body comprises the insulating sleeve 1 and the transition cylindrical shell 2 that distribute along the vertical direction, the upper end sealing of the lower end of insulating sleeve 1 and transition cylindrical shell 2 is connected, insulating sleeve 1 upper end is installed with upper cover plate 3, upper end cover 3 upper, lower both sides are installed with respectively termination 4 and contact rod 5, contact rod 5 is arranged in outer cylinder body, contact rod 5 outer race are equipped with the radome of tubular, radome is arranged at the inside of outer cylinder body and is supported fixing by outer cylinder body.In the present embodiment, radome comprises inner shield 6 and the external shield 7 of coaxial setting, and external shield 7 is arranged in insulating sleeve 1, and interior insulating boot 6 upper ends are located in insulating sleeve 1 and through external shield 7 and are stretched into downwards in transition cylindrical shell 2.Between the lower surface of the upper surface of transition cylindrical shell 2 and insulating sleeve 1, be installed with and be fixedly equipped with ring flange 8, the lower end of external shield 7 is supported and is fixedly assemblied on the upper surface of ring flange 8, on the lower surface of ring flange 8, be installed with stretch into downwards in transition cylindrical shell 2, shell-like, for the insulating base 9 of plug-in mounting inner shield 6, the lower ending opening of insulating base 9 is less than upper end, and the lower ending opening place that is fixedly assemblied in insulating base 9 is supported in the lower end of inner shield 6.Insulating base 9 adopts poured with epoxy resin to form.The lower end of external shield 7 is installed with the first base 71 of annular, the outward flange of the first base 71 has along the circumferential direction equally distributed protuberance, protuberance and corresponding first mounting hole that offers on ring flange upper surface, the upper surface of ring flange 8 and the first base 71 achieve a fixed connection by the bolt being plugged in the first mounting hole, on the upper surface of insulating base 9 and ring flange 8, correspondence offers the second mounting hole, the second mounting hole correspondence is arranged in the gap between adjacent projection, the lower surface of the lower surface of ring flange 8 and insulating base 9 achieves a fixed connection by the bolt being plugged in the second mounting hole, the lower end of inner shield 6 is installed with the second base 61 of annular, the upper surface of the lower surface of insulating base 9 and the second base 61 is bolted to connection.On the upper surface of upper cover plate 3, be fixedly equipped with grading ring.Grading ring is annular tubular structure, grading ring comprises grading ring 101 and lower uniform pressure ring 102, upper and lower grading ring distributes along the vertical direction, on upper cover plate 3, be fixed with upper bracket 103 and lower carriage 104 by bolt, upper grading ring 101 is welded to connect with upper bracket 103, lower uniform pressure ring 102 is welded to connect with lower carriage 104, and upper and lower grading ring is fixedly assemblied on upper cover plate 3 by upper and lower support respectively.Termination 4 comprises terminal block, and terminal block is provided with for the wiring hole of plug-in mounting hi-line with for fixing the set bolt of hi-line, and terminal block and upper end cover are bolted.On the outer peripheral face of transition cylindrical shell 2, be installed with air valve 21, air valve 21 is fixedly assemblied on the outer peripheral face of transition cylindrical shell 2 by four studs.
Inner shield 6 lower ends in transitional cylinder, upper end is in order effectively to ensure the non-uniform face that between transition cylindrical shell 2 and insulating sleeve 1, transition produces in insulating sleeve; Can effectively shield most electric field intensity by suspension inner shield 6, simultaneously in order to ensure this transition stably, be equipped with auxiliary external shield 7 and insulating base 9, avoid transition coupling part, upper and lower space produce electric discharge probability, by the face of some an electric field become face-to-face electric field.It is for ensureing that external shield 7 is in a potential level, being conducive to electric field stable that inner shield 6 is longer than radome 7.
The use procedure of above-mentioned lightning arrester electric test frock embodiment: one end of hi-line is electrically connected with terminal block, the other end is connected with lightning arrester disc insulator by the lower end of transition cylindrical shell 2, and the inner contact rod 5 that passes through is electrically connected with the electrical connector on disc insulator.Lightning arrester can be avoided the phenomenons such as air flashover in the time carrying out high-potting.
In other embodiment of lightning arrester electric test frock of the present invention, can also only comprise grading ring or lower uniform pressure ring.
In other embodiment of lightning arrester electric test frock of the present invention, can also omit grading ring.
In other embodiment of lightning arrester electric test frock of the present invention, termination can also be wiring annulus.
In other embodiment of lightning arrester electric test frock of the present invention, insulating boot can also be one or more.
Claims (7)
1. lightning arrester electric test frock, comprises the outer cylinder body extending along the vertical direction, is provided with contact rod in outer cylinder body, it is characterized in that: described contact rod outer race is equipped with the radome of tubular, and radome is arranged at the inside of outer cylinder body and is supported fixing by outer cylinder body.
2. lightning arrester electric test frock according to claim 1, it is characterized in that: described outer cylinder body comprises the insulating sleeve and the transition cylindrical shell that distribute along the vertical direction, described radome comprises inner shield and the external shield of coaxial setting, external shield is arranged in insulating sleeve, and interior insulating boot upper end is located in insulating sleeve and through external shield and is stretched into downwards in transition cylindrical shell.
3. lightning arrester electric test frock according to claim 2, it is characterized in that: between the lower surface of insulating sleeve and the upper surface of transition cylindrical shell, be fixedly equipped with ring flange, the lower end of external shield is supported and is fixedly assemblied on the upper surface of ring flange, on the lower surface of ring flange, be installed with stretch into downwards in transition cylindrical shell, shell-like, for the insulating base of plug-in mounting inner shield, the lower ending opening of insulating base is less than upper end, and the lower ending opening place that is fixedly assemblied in insulating base is supported in the lower end of inner shield.
4. lightning arrester electric test frock according to claim 3, is characterized in that: comprise the upper cover plate that is arranged at insulating sleeve upper end, be fixedly equipped with grading ring on the upper surface of upper end cover.
5. lightning arrester electric test frock according to claim 4, it is characterized in that: comprise the termination that is fixedly arranged on upper cover plate upside, termination comprises terminal block, and terminal block is provided with for the wiring hole of plug-in mounting hi-line with for fixing the set bolt of hi-line.
6. lightning arrester electric test frock according to claim 3, it is characterized in that: the lower end of external shield is installed with the first base of annular, the outward flange of the first base has along the circumferential direction equally distributed protuberance, described protuberance and corresponding first mounting hole that offers on ring flange upper surface, the upper surface of ring flange and the first base achieve a fixed connection by the bolt being plugged in the first mounting hole, on the upper surface of insulating base and ring flange, correspondence offers the second mounting hole, the second mounting hole correspondence is arranged in the gap between adjacent described protuberance, the lower surface of ring flange and the lower surface of insulating base achieve a fixed connection by the bolt being plugged in the second mounting hole, the lower end of inner shield is installed with the second base of annular, the upper surface of the lower surface of insulating base and the second base is bolted to connection.
7. lightning arrester electric test frock according to claim 4, it is characterized in that: grading ring is annular tubular structure, grading ring comprises grading ring and lower uniform pressure ring, upper and lower grading ring distributes along the vertical direction, on upper cover plate, be fixed with upper and lower support by bolt, upper and lower grading ring is welded to connect with upper bracket and lower carriage respectively, and upper and lower grading ring is fixedly assemblied on upper cover plate by upper and lower support respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197520.1A CN104133161A (en) | 2013-05-24 | 2013-05-24 | electrical test fixture for lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310197520.1A CN104133161A (en) | 2013-05-24 | 2013-05-24 | electrical test fixture for lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104133161A true CN104133161A (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310197520.1A Pending CN104133161A (en) | 2013-05-24 | 2013-05-24 | electrical test fixture for lightning arrester |
Country Status (1)
| Country | Link |
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| CN (1) | CN104133161A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569100A (en) * | 2016-10-12 | 2017-04-19 | 河南平高通用电气有限公司 | Lightning arrester testing tool |
| CN108802585A (en) * | 2018-08-23 | 2018-11-13 | 上海腾炎新材料有限公司 | A kind of test tool for insulating of electric measurement of high pressure part lightning impulse test |
| CN109799433A (en) * | 2019-03-01 | 2019-05-24 | 江苏神马电力股份有限公司 | A kind of electrical performance test device and method of insulating materials |
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| CN2896629Y (en) * | 2006-03-20 | 2007-05-02 | 西安西开高压电气股份有限公司 | Air-inflation type lead-in-out casing tube |
| CN101116156A (en) * | 2004-12-10 | 2008-01-30 | 日本Ae帕瓦株式会社 | Arrestor and method of measuring leakage current of arrestor |
| CN101807459A (en) * | 2010-03-10 | 2010-08-18 | 中国电力科学研究院 | Ultrahigh-pressure gas insulated porcelain sleeve pipe |
| CN102004201A (en) * | 2010-12-22 | 2011-04-06 | 江苏省电力公司无锡供电公司 | Cable gas insulated switchgear (GIS) terminal tester |
| CN201812516U (en) * | 2010-09-04 | 2011-04-27 | 仝志红 | Transition insertion type capacitance insulation wire outlet bus |
| CN201853872U (en) * | 2010-10-13 | 2011-06-01 | 平高集团有限公司 | Intershield conducting rod |
| CN201904598U (en) * | 2010-12-22 | 2011-07-20 | 江苏省电力公司无锡供电公司 | Insulating cylinder |
| CN102969096A (en) * | 2012-12-06 | 2013-03-13 | 山东彼岸电力科技有限公司 | High-voltage outgoing line composite bushing |
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2013
- 2013-05-24 CN CN201310197520.1A patent/CN104133161A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116156A (en) * | 2004-12-10 | 2008-01-30 | 日本Ae帕瓦株式会社 | Arrestor and method of measuring leakage current of arrestor |
| CN2896629Y (en) * | 2006-03-20 | 2007-05-02 | 西安西开高压电气股份有限公司 | Air-inflation type lead-in-out casing tube |
| CN101807459A (en) * | 2010-03-10 | 2010-08-18 | 中国电力科学研究院 | Ultrahigh-pressure gas insulated porcelain sleeve pipe |
| CN201812516U (en) * | 2010-09-04 | 2011-04-27 | 仝志红 | Transition insertion type capacitance insulation wire outlet bus |
| CN201853872U (en) * | 2010-10-13 | 2011-06-01 | 平高集团有限公司 | Intershield conducting rod |
| CN102004201A (en) * | 2010-12-22 | 2011-04-06 | 江苏省电力公司无锡供电公司 | Cable gas insulated switchgear (GIS) terminal tester |
| CN201904598U (en) * | 2010-12-22 | 2011-07-20 | 江苏省电力公司无锡供电公司 | Insulating cylinder |
| CN102969096A (en) * | 2012-12-06 | 2013-03-13 | 山东彼岸电力科技有限公司 | High-voltage outgoing line composite bushing |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569100A (en) * | 2016-10-12 | 2017-04-19 | 河南平高通用电气有限公司 | Lightning arrester testing tool |
| CN108802585A (en) * | 2018-08-23 | 2018-11-13 | 上海腾炎新材料有限公司 | A kind of test tool for insulating of electric measurement of high pressure part lightning impulse test |
| CN109799433A (en) * | 2019-03-01 | 2019-05-24 | 江苏神马电力股份有限公司 | A kind of electrical performance test device and method of insulating materials |
| CN109799433B (en) * | 2019-03-01 | 2021-01-15 | 江苏神马电力股份有限公司 | Device and method for testing electrical performance of insulating material |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141105 |