CN108538524A - A kind of transformer neutral point test of lightning arrester electrode insulation - Google Patents
A kind of transformer neutral point test of lightning arrester electrode insulation Download PDFInfo
- Publication number
- CN108538524A CN108538524A CN201810349488.7A CN201810349488A CN108538524A CN 108538524 A CN108538524 A CN 108538524A CN 201810349488 A CN201810349488 A CN 201810349488A CN 108538524 A CN108538524 A CN 108538524A
- Authority
- CN
- China
- Prior art keywords
- telescopic rods
- neutral point
- insulating boot
- insulated telescopic
- lightning arrester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 238000009413 insulation Methods 0.000 title claims abstract description 30
- 230000007935 neutral effect Effects 0.000 title claims abstract description 30
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 210000000003 hoof Anatomy 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 2
- 238000002474 experimental method Methods 0.000 abstract description 11
- 230000009194 climbing Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000013264 metal-organic assembly Substances 0.000 description 3
- 206010073131 oligoastrocytoma Diseases 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/60—Composite insulating bodies
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/62—Testing of transformers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to the technical fields of power distribution station ancillary equipment, more specifically, it is related to a kind of transformer neutral point test of lightning arrester electrode insulation, including insulated telescopic rods and insulating boot, the insulating boot is removably connected in insulated telescopic rods, one end of the insulating boot is closed, and one end is equipped with the hatch frame that can accommodate clearance electrode insertion；The junction of the insulating boot and insulated telescopic rods is equipped with connecting seat, and the connecting seat is flexibly connected with insulated telescopic rods.Insulating boot is installed on clearance electrode by the present invention before the test, by insulated telescopic rods, keeps away climbing insulating ladder, using of seat belts carries out working at height, reduction operating risk, shortening test period, raising working efficiency.During experiment, due to the safety protection function of insulating boot, discharging gap does not puncture, and guarantee test smoothly completes, and does not influence the judgement of DC leakage test data.
Description
Technical field
The present invention relates to the technical fields of power distribution station ancillary equipment, lightning-arrest more particularly, to a kind of transformer neutral point
Device experiment electrode insulation.
Background technology
With the expansion of power grid scale, substation 220kV and the above main transformer quantity increase increasingly, every three-winding transformer
Two neutral point MOAs are at least installed, above-mentioned neutral point MOA is installed in parallel discharging gap.Since neutral point is lightning-arrest
Device does not have live testing condition, is required periodically carry out power failure experiment according to testing regulations.One of which DC leakage test,
Hundreds of Kilovolt Direct Current pressures need to be applied.Since test voltage is higher, arrester must be detached with discharging gap before experiment, or adopt
Take fully enough insulating protection measures.
Currently, there are mainly two types of the measures taken：First, removing arrester lead or discharging gap, directly arrester is added
Pressure experiment；Second is that not removing lead, barrier is arranged to electrode with insulating glove, insulating boot etc., prevents gap breakdown, elimination spuious
Influence of the leakage current to test data.However, the former needs operating personnel to fasten one's safety belt, arrester base is climbed up using insulating ladder
Plinth is removed, restores lead and discharging gap operation, and standing place is narrow, and safety belt is fixed difficult, and lead is time-consuming takes for assembly and disassembly
Power；The latter needs operating personnel to fasten one's safety belt, and climbs up arrester basis using insulating ladder, places, removes insulating glove, insulating boot
Equal objects.Two methods are both needed to use insulating ladder, are ascended a height twice altogether operation before the test, after experiment, operation process risk
Height, and operation process is less efficient.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of transformer neutral point test of lightning arrester electricity consumptions
Pole seal carries out insulating protection to neutral point clearance electrode, prevents gap breakdown, and ensure that not influencing test data sentences
It is disconnected.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of transformer neutral point test of lightning arrester electrode insulation is provided, electric discharge has been installed in parallel between neutral point MOA
Gap is equipped with clearance electrode at the discharging gap；Electrode insulation includes insulated telescopic rods and insulating boot, the insulating boot
It is removably connected in insulated telescopic rods, one end closing of the insulating boot, one end, which is equipped with, can accommodate clearance electrode insertion
Hatch frame；The junction of the insulating boot and insulated telescopic rods is equipped with connecting seat, the connecting seat and insulated telescopic rods activity
Connection.
The transformer neutral point test of lightning arrester electrode insulation of the present invention is carrying out transformer neutral point arrester
Direct current leakage has a power failure before experiment, and insulating boot is fixed on to one end of insulated telescopic rods, installs insulating boot by insulated telescopic rods
On clearance electrode, keep away climbing insulating ladder, use of seat belts carry out working at height, reduce operating risk, shorten test period, carry
High working efficiency.During experiment, due to the safety protection function of insulating boot, discharging gap does not puncture, and guarantee test is suitable
Profit is completed, and does not influence the judgement of DC leakage test data.
Further, the insulated telescopic rods include the telescoping tube of several sockets, and the socket place of adjacent expansion pipe, which is equipped with, to be used
In the buckle structure of locking insulated telescopic rods height.By adjusting the height of insulated telescopic rods, will insulate by insulated telescopic rods
Cover is installed on clearance electrode；The telescopic design of insulated telescopic rods can be suitable for the clearance electrode of different height, avoid
Climbing insulating ladder, using of seat belts carries out working at height.
Further, the buckle structure includes including by folder and set on by the drawing pin on folder, described to stretch by being located in
The end in the outside of the draw, the telescoping tube is equipped with and draws the location hole for selling cooperation.When will be pressed to telescoping tube direction by folder, draw
Pin is detached from location hole, can adjust the height of insulated telescopic rods on demand；When will be pulled to separate telescoping tube direction by folder, draws pin and determine
Positioning is realized in the cooperation of position hole.
Further, the insulated telescopic rods include at least two groups of telescoping tubes being connected through a screw thread, one group of telescoping tube
Outer wall is equipped with external screw thread, and another group of telescoping tube is equipped with the screw hole coordinated with external screw thread.Two groups of telescoping tubes being threadedly coupled so that
The height of insulated telescopic rods can consecutive variations, can widen the present invention the scope of application.
Further, the insulating boot includes conical shell, and the conical shell is wrapped around equipped with by metal material
Manufactured grading shield.On the one hand the setting of grading shield presses the realization of higher test voltage, improve field distribution, prevent electric field
Distortion reduces influence of the leakage current to DC leakage test data, prevents insulating boot from creeping discharge or breakdown occurs；Another party
It is protected in face of insulation cover opening, insulation cover structure is reinforced, the service life of insulating boot is improved.
Further, the first cavity and the second cavity are equipped in insulating boot, the side of first cavity is equipped with cambered surface knot
The width of structure, second cavity gradually uniformly reduces from left to right.The size of first cavity and the second cavity is according to transformer
Electrode can be quick and precisely inserted in insulation casing body by the size design of neutral point clearance electrode convenient for personnel in terrestrial operation
Portion；On the one hand the setting of the structure of second cavity is fixed convenient for the position of clearance electrode, realize insulating boot on telescopic insulating bar
Height and position electrodeless adjustment；On the other hand reduce shared spatial volume and weight, it is easy to carry.
Further, the hatch frame shape of a hoof card slot mouth and rectangular card slot mouth, the opening of the rectangular card slot mouth
Area is less than the opening area of shape of a hoof card slot mouth.It is open larger, it, can be quick and precisely by gap electricity convenient for personnel in terrestrial operation
It is inserted in insulating boot enclosure interior in pole.
Further, the connecting seat includes fixed bottom plate and the adjustable fixed ring of opening size, and the fixed plate is solid
Surely it is set to the side of insulating boot, the fixed ring is set in fixed plate, and the fixed ring is equipped with the card coordinated with insulated telescopic rods
Maintenance.Connecting seat is used to connect insulating boot and insulated telescopic rods, and insulating boot is fixed in insulated telescopic rods in the horizontal direction, and
It can be slided in insulated telescopic rods vertical direction, after the fixation of insulated telescopic rods extension elongation, not met such as using height,
Can relative position of the electrodeless adjustment insulating boot in insulated telescopic rods in vertical direction, ensure that height is suitable.
Further, at the cooperation of the fixed ring and insulated telescopic rods be equipped with insulation non-slip mat, increase fixed ring with absolutely
Frictional force between edge telescopic rod prevents insulating boot is caused under the effect of gravity from gliding.
Further, the fixed ring includes the first velcro and the second velcro, first velcro and second
Velcro is arranged in parallel, and first velcro, the second velcro are arranged in fixed plate.Using the first velcro and the second evil spirit
Insulating boot is fixed in insulated telescopic rods by art patch, and easy to operate, stable connection is reliable.
Compared with prior art, the beneficial effects of the invention are as follows：
（1）Insulating boot is installed on clearance electrode by the present invention before the test, by insulated telescopic rods, is kept away climbing insulating ladder, is made
Working at height is carried out with safety belt, reduces operating risk, shortens test period, improves working efficiency.During experiment, due to exhausted
The safety protection function of edge cover, discharging gap do not puncture, and guarantee test smoothly completes, and do not influence DC leakage test data
Judge.
（2）Grading shield is arranged in the present invention, presses the realization of higher test voltage, improves field distribution, prevent electric field abnormal
Become, reduces influence of the leakage current to DC leakage test data, prevent insulating boot from creeping discharge or breakdown occurs；And it can be right
Insulation cover structure is reinforced, and the service life of insulating boot is improved.
（3）The width of the second cavity of the present invention gradually uniformly reduces from left to right, is on the one hand convenient for the position of clearance electrode
Fixation is set, realizes height and position electrodeless adjustment of the insulating boot on telescopic insulating bar；On the other hand reduce shared spatial volume and
Weight, it is easy to carry.
Description of the drawings
Fig. 1 is the structural schematic diagram of transformer neutral point test of lightning arrester electrode insulation.
Specific implementation mode
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is indicated is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；In retouching for the present invention
In stating, it is to be understood that if it is based on attached drawing to have the orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right"
Shown in orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated
Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore position relationship described in attached drawing
Term only for illustration, should not be understood as the limitation to this patent, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
Embodiment 1
It is as shown in Figure 1 the transformer neutral point test of lightning arrester electrode insulation of the present invention, between neutral point MOA simultaneously
Connection is equipped with discharging gap, and clearance electrode 6 is equipped at discharging gap；Electrode insulation includes insulated telescopic rods 1 and insulating boot
2, insulating boot 2 is removably connected in insulated telescopic rods 1, and one end closing of insulating boot 2, one end, which is equipped with, can accommodate clearance electrode
6 hatch frames 3 being inserted into；The junction of insulating boot 2 and insulated telescopic rods 1 is equipped with connecting seat 4, connecting seat 4 and insulated telescopic rods 1
Flexible connection.
Insulating boot 2 is fixed on absolutely by the present embodiment before carrying out the power failure experiment of transformer neutral point arrester direct current leakage
Insulating boot 2 is installed on clearance electrode 6 by one end of edge telescopic rod 1 by insulated telescopic rods 1, keeps away climbing insulating ladder, using peace
Full band carries out working at height, reduces operating risk, shortens test period, improves working efficiency.During experiment, due to insulating boot
2 safety protection function, discharging gap do not puncture, and guarantee test smoothly completes, and do not influence DC leakage test data and sentence
It is disconnected.
Specifically, insulated telescopic rods 1 include the telescoping tube 11 of several sockets, and the socket place of adjacent expansion pipe 11, which is equipped with, to be used for
The buckle structure of 1 height of locking insulated telescopic rods adjusts the height of insulated telescopic rods 1, is suitable for the clearance electrode of different height
6, avoid climbing insulating ladder, use of seat belts progress working at height.Wherein, buckle structure includes including by folder and set on by folder
On drawing pin, by the outside for being located in telescoping tube 11, the end of telescoping tube 11 is equipped with and draws the location hole of pin cooperation, will by folder to
When 11 direction of telescoping tube is pressed, draws pin to be detached from location hole, the height of insulated telescopic rods 1 can be adjusted on demand；It will be stretched to separate by folder
When 11 direction of the draw pulls, pin is drawn to realize positioning with location hole cooperation.In addition, insulated telescopic rods 1 pass through spiral shell including at least two groups
The outer wall of the telescoping tube 11 of line connection, one group of telescoping tube 11 is equipped with external screw thread, and another group of telescoping tube 11 is equipped with matches with external screw thread
The screw hole of conjunction so that the height of insulated telescopic rods 1 can consecutive variations, can widen the present invention the scope of application.
As shown in Figure 1, insulating boot 2 includes conical shell, conical shell is wrapped around equipped with made of metal
On the one hand grading shield 5 presses the realization of higher test voltage, improves field distribution, prevent electric field distortion, reduces leakage current
Influence to DC leakage test data prevents insulating boot 2 from creeping discharge or breakdown occurs；On the other hand it is open to insulating boot 2
It is protected, 2 structure of insulating boot is reinforced, improve the service life of insulating boot 2.Wherein, the first chamber is equipped in insulating boot 2
The side of body and the second cavity, the first cavity is equipped with globoidal structure, and the width of the second cavity gradually uniformly reduces from left to right, and one
Aspect is fixed convenient for the position of clearance electrode 6, realizes height and position electrodeless adjustment of the insulating boot 2 on telescopic insulating bar；It is another
Aspect reduces shared spatial volume and weight, easy to carry.
As shown in Figure 1,3 shape of a hoof card slot mouth 31 of hatch frame and rectangular card slot mouth 32, the opening of rectangular card slot mouth 32
Area is less than the opening area of shape of a hoof card slot mouth 31, convenient for personnel in terrestrial operation, can electrode be quick and precisely inserted in insulation
Cover 2 enclosure interiors.
As shown in Figure 1, connecting seat 4 includes fixed bottom plate 41 and the adjustable fixed ring of opening size, fixed plate fixation is set
In the side of insulating boot 2, fixed ring is set in fixed plate, and fixed ring is equipped with the fixing position 42 coordinated with insulated telescopic rods 1, fixed
It is equipped with insulation non-slip mat at ring and the cooperation of insulated telescopic rods 1, increases the frictional force between fixed ring and insulated telescopic rods 1, prevents
Only insulating boot 2 is caused under the effect of gravity glides.The present embodiment kind, fixed ring include the first velcro 43 and the second magic
Patch 44, the first velcro 43 is arranged in parallel with the second velcro 44, and the first velcro 43, the second velcro 44 are arranged in fixed plate
On, easy to operate, stable connection is reliable.
The specific implementation process of the present embodiment is as follows：
Insulating boot 2 by the first velcro 43, the second velcro 44, push up in the horizontal direction by the fixed insulated telescopic rods 1 that are bonded in
Portion, insulated telescopic rods 1 stand on ground, stretch height along Y direction towards clearance electrode 6, between 2 hatch frame 3 of insulating boot reaches
When gap 6 position of electrode, by 2 hatch frame 3 of insulating boot, along X-axis negative direction, all set on the electrode, ensures that electrode touches insulating boot 2
2 aperture position of insulating boot is moved in bottom along Z axis negative direction, ensures that clearance electrode 6 is fixed on inside rectangular card slot；Continue to extend
Insulated telescopic rods 1 are until adjacent 11 socket place buckle structure of telescoping tube is locked, after length is fixed, by telescopic insulating bar, insulation
Cover 2 leans against on neutral point clearance electrode 6, trim locations, and it is X-axis negative direction to make 2 horizontal direction force direction of insulating boot, between
6 root of gap electrode, insulating boot 2 is not fallen off during guarantee test, and insulated telescopic rods 1 are not toppled over.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (10)
1. a kind of transformer neutral point test of lightning arrester electrode insulation, it has been installed in parallel between electric discharge between neutral point MOA
Gap is equipped with clearance electrode at the discharging gap；It is characterised in that it includes insulated telescopic rods（1）And insulating boot（2）, described exhausted
Edge cover（2）It is removably connected to insulated telescopic rods（1）On, the insulating boot（2）One end closing, one end be equipped with can accommodate between
The hatch frame that gap electrode is inserted into（3）；The insulating boot（2）With insulated telescopic rods（1）Junction be equipped with connecting seat（4）, institute
State connecting seat（4）With insulated telescopic rods（1）Flexible connection.
2. transformer neutral point test of lightning arrester electrode insulation according to claim 1, which is characterized in that described
Insulated telescopic rods（1）Include the telescoping tube of several sockets（11）, adjacent expansion pipe（11）Socket place be equipped with for locking insulate
The buckle structure of telescopic rod height.
3. transformer neutral point test of lightning arrester electrode insulation according to claim 2, which is characterized in that described
Buckle structure includes including by folder and set on by the drawing pin on folder, described by the outside for being located in telescoping tube, the telescoping tube
End be equipped with and draw pin cooperation location hole.
4. transformer neutral point test of lightning arrester electrode insulation according to claim 2, which is characterized in that described
Insulated telescopic rods（1）The telescoping tube being connected through a screw thread including at least two groups（11）, the outer wall of one group of telescoping tube is equipped with external screw thread,
Another group of telescoping tube is equipped with the screw hole coordinated with external screw thread.
5. transformer neutral point test of lightning arrester electrode insulation according to any one of claims 1 to 4, feature
It is, the insulating boot（2）Including conical shell, wrapping around for the conical shell is pressed equipped with made of metal
Cover（5）.
6. transformer neutral point test of lightning arrester electrode insulation according to claim 5, the insulating boot（2）It is interior
Equipped with the first cavity and the second cavity, the side of first cavity is equipped with globoidal structure（21）, the width of second cavity
Gradually uniformly reduce from left to right.
7. transformer neutral point test of lightning arrester electrode insulation according to claim 1, which is characterized in that described
Hatch frame（3）Shape of a hoof card slot mouth（31）And rectangular card slot mouth（32）, the rectangular card slot mouth（32）Opening area it is small
In shape of a hoof card slot mouth（31）Opening area.
8. transformer neutral point test of lightning arrester electrode insulation according to claim 1, which is characterized in that described
Connecting seat（4）Including fixed bottom plate（41）And the adjustable fixed ring of opening size, the fixed plate（41）It is fixed at insulation
Cover（2）Side, the fixed ring be set to fixed plate on, the fixed ring is equipped with and insulated telescopic rods（1）The fixing position of cooperation
（42）.
9. transformer neutral point test of lightning arrester electrode insulation according to claim 8, which is characterized in that described
Fixed ring and insulated telescopic rods（1）Cooperation at be equipped with insulation non-slip mat.
10. transformer neutral point test of lightning arrester electrode insulation according to claim 8, which is characterized in that institute
It includes the first velcro to state fixed ring（43）And second velcro（44）, first velcro（43）With the second velcro
（44）It is arranged in parallel, first velcro（43）, the second velcro（44）It is arranged in fixed plate（41）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349488.7A CN108538524B (en) | 2018-04-18 | 2018-04-18 | Electrode insulation device for transformer neutral point lightning arrester test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349488.7A CN108538524B (en) | 2018-04-18 | 2018-04-18 | Electrode insulation device for transformer neutral point lightning arrester test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108538524A true CN108538524A (en) | 2018-09-14 |
| CN108538524B CN108538524B (en) | 2024-04-30 |
Family
ID=63477741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810349488.7A Active CN108538524B (en) | 2018-04-18 | 2018-04-18 | Electrode insulation device for transformer neutral point lightning arrester test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108538524B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180226A (en) * | 2020-09-24 | 2021-01-05 | 广东电网有限责任公司佛山供电局 | A appurtenance for arrester high-voltage testing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0387865A1 (en) * | 1989-03-17 | 1990-09-19 | Oy Sekko Ab | Spark protection device for insulated conductors, particularly for air lines |
| CN103515918A (en) * | 2012-06-26 | 2014-01-15 | 3M创新有限公司 | Voltage-sharing cover assembly |
| CN204101590U (en) * | 2014-10-22 | 2015-01-14 | 广西电网有限责任公司桂林供电局 | Transformer neutral point test of lightning arrester insulating shielding device |
| CN206819820U (en) * | 2017-06-22 | 2017-12-29 | 广州供电局有限公司 | The insulation protective hood of arrester |
| CN208014456U (en) * | 2018-04-18 | 2018-10-26 | 广东电网有限责任公司 | A kind of transformer neutral point test of lightning arrester electrode insulation |
-
2018
- 2018-04-18 CN CN201810349488.7A patent/CN108538524B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0387865A1 (en) * | 1989-03-17 | 1990-09-19 | Oy Sekko Ab | Spark protection device for insulated conductors, particularly for air lines |
| CN103515918A (en) * | 2012-06-26 | 2014-01-15 | 3M创新有限公司 | Voltage-sharing cover assembly |
| CN204101590U (en) * | 2014-10-22 | 2015-01-14 | 广西电网有限责任公司桂林供电局 | Transformer neutral point test of lightning arrester insulating shielding device |
| CN206819820U (en) * | 2017-06-22 | 2017-12-29 | 广州供电局有限公司 | The insulation protective hood of arrester |
| CN208014456U (en) * | 2018-04-18 | 2018-10-26 | 广东电网有限责任公司 | A kind of transformer neutral point test of lightning arrester electrode insulation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180226A (en) * | 2020-09-24 | 2021-01-05 | 广东电网有限责任公司佛山供电局 | A appurtenance for arrester high-voltage testing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108538524B (en) | 2024-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208014456U (en) | A kind of transformer neutral point test of lightning arrester electrode insulation | |
| CN108538524A (en) | A kind of transformer neutral point test of lightning arrester electrode insulation | |
| CN103383400B (en) | A kind of insulation safety device preventability test device | |
| CN106025888A (en) | 10-220kV multifunctional insulating operating rod | |
| CN202748389U (en) | Shielding cover for lightning arrester test with voltage no less than 110kV | |
| CN209607932U (en) | A kind of ground line electroscopic device | |
| CN209199693U (en) | A kind of test of lightning arrester protective device | |
| CN208795830U (en) | Magnetic field detection component, switchgear and distribution system | |
| CN207069098U (en) | The raising maintenance person screws the closely electric early warning grounding wire device of type with equipment safety | |
| CN207513288U (en) | A kind of Portable supporting device for electric pole | |
| CN209471257U (en) | A kind of transmission facility weak node prospecting instrument | |
| CN107834412A (en) | Adjusting insulation protective cover and its installation method | |
| CN209561868U (en) | Manual elevating type lightning rod | |
| CN107243143A (en) | A kind of adjustable multifunction power maintenance safety protector | |
| CN209387835U (en) | A kind of portable quantization inside battery aerogenesis apparatus | |
| CN208860333U (en) | One kind is fixed for coating thickness detector and measuring device | |
| CN207010194U (en) | Line flashover protector | |
| CN207830356U (en) | Multi-angle adjustable high-voltage grounding wire adapter | |
| CN108429132B (en) | Adjustable substation dress table bracket | |
| KR101029294B1 (en) | Electric transformer for high tension generation | |
| Wang et al. | Study on the discharge characteristics of combined air gap with floating potential conductor under DC high voltage | |
| CN207038809U (en) | A kind of European rear joint | |
| CN206849597U (en) | A kind of drop-type arrester insulating shield | |
| CN208767214U (en) | A kind of vacuum circuit breaker protective device of easy access | |
| CN204760759U (en) | Lightning protection switch board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |