CN206546752U - Arrester and lightning-arrest core body - Google Patents
Arrester and lightning-arrest core body Download PDFInfo
- Publication number
- CN206546752U CN206546752U CN201720068385.4U CN201720068385U CN206546752U CN 206546752 U CN206546752 U CN 206546752U CN 201720068385 U CN201720068385 U CN 201720068385U CN 206546752 U CN206546752 U CN 206546752U
- Authority
- CN
- China
- Prior art keywords
- resistor disc
- lightning
- insulating
- core body
- 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.)
- Active
Links
Landscapes
- Thermistors And Varistors (AREA)
Abstract
The utility model is related to a kind of arrester and lightning-arrest core body, including resistor disc post, the insulating barrier and at least two insulating support rods located at insulating barrier periphery that are wrapped in resistor disc outer surface of column, and insulating support rod is axially arranged along resistor disc post.In the overall layer insulating in the outer surface of resistor disc post, increase the dielectric strength of resistor disc post, it is to avoid side flashover problem caused by arrester causes resistor disc post side insulation not enough under overvoltage, it is ensured that the safe operation of arrester；And at least two insulating support rods are arranged in the periphery of insulating barrier, support and position-limiting action are risen to resistor disc post, prevent resistor disc post to be shifted in use, be further ensured that the operation safety of arrester.
Description
Technical field
The utility model is related to transmission of electricity lightning-protecting engineering field, more particularly to a kind of arrester and lightning-arrest core body.
Background technology
China had built many high pressure strings and mended on the premise of improving power transmission quality and advocating flexible transmission in recent years
Stand, but a lot of accidents are there occurs during station is put into operation going here and there to mend, especially 500kV strings mend MOV pressure relieving events, serious shadow
The normal of series compensation device has been rung to use.Wherein main fault type is exactly to be broken down under power-frequency overvoltage, its failure
The form of expression is generally the resistor-piece side flashover of core body, and when arrester is by power-frequency overvoltage, resistor disc heating can cause resistance
The dielectric strength of piece side glaze layer declines, it is impossible to ensure the safe operation of arrester.
Utility model content
The purpose of this utility model is to provide a kind of arrester and lightning-arrest core body, by increasing capacitance it is possible to increase the insulation of resistor disc post is strong
Degree, it is ensured that the safe operation of arrester.
To realize the purpose of this utility model, adopt the technical scheme that：
A kind of lightning-arrest core body, including resistor disc post, it is wrapped in the insulating barrier of resistor disc outer surface of column and outside insulating barrier
At least two insulating support rods in week, insulating support rod is axially arranged along resistor disc post.
In the overall layer insulating in the outer surface of resistor disc post, increase the dielectric strength of resistor disc post, it is to avoid arrester exists
Side flashover problem caused by causing resistor disc post side insulation not enough under overvoltage, it is ensured that the safe operation of arrester；And
At least two insulating support rods are arranged in the periphery of insulating barrier, play support and position-limiting action to resistor disc post, prevent resistor disc
Post is shifted in use, is further ensured that the operation safety of arrester.
Technical scheme is further illustrated below：
It is further, insulating support rod at least three that insulating support rod surrounds the periphery of insulating support rod circumferentially
It is evenly arranged.Make support and limit effect of the insulating support rod to resistor disc post more preferable, it is ensured that the operation safety of arrester.
It is further that resistor disc post includes the resistor disc of multiple series connection closed assemblies.
It is further that resistor disc is metal oxide varistors piece.
It is further that insulating barrier is composite silicone rubber layer.When resistor disc post is by power-frequency overvoltage, resistor disc column temperature
Degree improve, silastic material will not moment heat conduction cause the medium temperature of silicon rubber and air part to improve, further increase take shelter from the thunder
The dielectric strength of core body, it is ensured that the operation safety of arrester.
It is further that the thickness of insulating barrier is 3-5mm.
It is further that insulating support rod is expoxy glass bar.Expoxy glass material bearing capacity is good, and with heat resistance
Can, in the presence of enhancing is supported to resistor disc post, and will not be because resistor disc post generates heat and softens.
The utility model also improves a kind of arrester, insulating coating and above-mentioned lightning-arrest core body, and lightning-arrest core body is sealed in absolutely
In edge overcoat.It is further ensured that the operation safety of arrester.
It is further, full skirt of the periphery provided with the arrangement of spacing side by side vertically of insulating coating.Improve the dirt of arrester
Lightning pressure, is further ensured that the operation safety of arrester.
Compared with prior art, the utility model has the advantages that：
The utility model increases the dielectric strength of resistor disc post, kept away in the overall layer insulating in outer surface of resistor disc post
Exempt from arrester causes side flashover problem caused by resistor disc post side insulation deficiency under overvoltage, it is ensured that the peace of arrester
Row for the national games；And at least two insulating support rods are arranged in the periphery of insulating barrier, support and position-limiting action are played to resistor disc post, prevented
Only resistor disc post is shifted in use, is further ensured that the operation safety of arrester.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment arrester；
Fig. 2 is the structural representation of the lightning-arrest core body of the utility model embodiment.
Description of reference numerals：
10. insulating coating, 20. lightning-arrest core bodys, 210. resistor disc posts, 220. insulating barriers, 230. insulating support rods, 30. umbrellas
Skirt.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, a kind of arrester, including insulating coating 10 and lightning-arrest core body 20, core body 20 of taking shelter from the thunder include electricity
Hinder piece post 210, be wrapped in the insulating barrier 220 of the outer surface of resistor disc post 210 and at least two eradications located at the periphery of insulating barrier 220
Edge support bar 230, axial direction extension of the insulating support rod 230 along resistor disc post 210.
In the overall layer insulating 220 in the outer surface of resistor disc post 210, the dielectric strength of increase resistor disc post 210, it is to avoid
Side flashover problem caused by arrester causes the side insulation of resistor disc post 210 not enough under overvoltage, it is ensured that arrester
Safe operation；And at least two insulating support rods 230 are arranged in the periphery of insulating barrier 220, to the support of 210, resistor disc post and
Position-limiting action, prevents resistor disc post 210 to be shifted in use, is further ensured that the operation safety of arrester.
In the present embodiment, insulating barrier 220 is composite silicone rubber layer, forms the lightning-arrest core body 20 for meeting outer glaze, this is exhausted
The thickness of edge layer 220 is 3-5mm.When resistor disc post 210 is by power-frequency overvoltage, the temperature of resistor disc post 210 is improved, silicon rubber
Material will not moment heat conduction cause the medium temperature of silicon rubber and air part to improve, further the insulation of the lightning-arrest core body 20 of increase is strong
Degree, it is ensured that the operation safety of arrester.
As shown in Fig. 2 insulating support rod 230 at least three, preferably 4-12 roots, insulating support rod 230 is around insulation
The periphery of support bar 230 is circumferentially evenly arranged, and makes support and limit effect of the insulating support rod 230 to resistor disc post 210 more
It is good, it is ensured that the operation safety of arrester.Insulating support rod 230 can also set two according to the actual size of resistor disc post 210
More than, when insulating support rod 230 is set to two, two insulating support rods 320 are preferably to be arranged symmetrically.
Insulating support rod 230 is expoxy glass bar, and expoxy glass material bearing capacity is good, and with heat resistance, in enhancing
In the presence of being supported to resistor disc post 210, and it will not soften because generating heat resistor disc post 210.Insulating support rod 230 can be with root
Other materials are used according to being actually needed.
Resistor disc post 210 includes the resistor disc of multiple series connection closed assemblies, and the resistor disc is metal oxide varistors piece.
As shown in figure 1, full skirt 30 of the periphery of insulating coating 10 provided with the arrangement of spacing side by side vertically, improves arrester
Pollution flashover voltage, is further ensured that the operation safety of arrester.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (8)
1. a kind of lightning-arrest core body, it is characterised in that including resistor disc post, be wrapped in the resistor disc outer surface of column insulating barrier,
And at least two insulating support rods located at the insulating barrier periphery, axial direction of the insulating support rod along the resistor disc post is set
Put, the resistor disc post includes the resistor disc of multiple series connection closed assemblies.
2. lightning-arrest core body according to claim 1, it is characterised in that the insulating support rod at least three, described exhausted
Edge support bar is circumferentially evenly arranged around the periphery of the insulating support rod.
3. lightning-arrest core body according to claim 1, it is characterised in that the resistor disc is metal oxide varistors
Piece.
4. lightning-arrest core body according to claim 1, it is characterised in that the insulating barrier is composite silicone rubber layer.
5. lightning-arrest core body according to claim 4, it is characterised in that the thickness of the insulating barrier is 3-5mm.
6. the lightning-arrest core body according to any one of claim 1 to 5, it is characterised in that the insulating support rod is epoxy glass
Glass bar.
7. a kind of arrester, it is characterised in that including the lightning-arrest core body described in insulating coating and any one of claim 1 to 6, institute
Lightning-arrest core body is stated to be sealed in the insulating coating.
8. arrester according to claim 7, it is characterised in that the periphery of the insulating coating provided with vertically side by side between
Every the full skirt of arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720068385.4U CN206546752U (en) | 2017-01-18 | 2017-01-18 | Arrester and lightning-arrest core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720068385.4U CN206546752U (en) | 2017-01-18 | 2017-01-18 | Arrester and lightning-arrest core body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206546752U true CN206546752U (en) | 2017-10-10 |
Family
ID=59992767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720068385.4U Active CN206546752U (en) | 2017-01-18 | 2017-01-18 | Arrester and lightning-arrest core body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206546752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594092A (en) * | 2018-05-09 | 2018-09-28 | 国网河南省电力公司电力科学研究院 | A kind of metal oxide arrester defects simulation experimental rig |
| CN113393987A (en) * | 2021-06-03 | 2021-09-14 | 中国电力科学研究院有限公司 | Arrester core body with insulating layer, arrester body and multi-column parallel arrester |
-
2017
- 2017-01-18 CN CN201720068385.4U patent/CN206546752U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594092A (en) * | 2018-05-09 | 2018-09-28 | 国网河南省电力公司电力科学研究院 | A kind of metal oxide arrester defects simulation experimental rig |
| CN113393987A (en) * | 2021-06-03 | 2021-09-14 | 中国电力科学研究院有限公司 | Arrester core body with insulating layer, arrester body and multi-column parallel arrester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206546752U (en) | Arrester and lightning-arrest core body | |
| CN107369508A (en) | A kind of arrester | |
| CN207052386U (en) | A kind of Novel lightning-proof pillar insulator | |
| CN203950671U (en) | A kind of dry type hollow series reactor safe operation safeguard structure | |
| CN205984482U (en) | MOA (metal oxide arrester) | |
| CN206877775U (en) | A kind of new 500kv Transmission Line Arrestors core group structure | |
| Cao et al. | Development and application of lightning flashover limited equipment for 220 kV AC transmission line | |
| CN204143985U (en) | A kind of explosion-proof lightning arrester | |
| CN204316064U (en) | A kind of insulative distributing line lightning protection device | |
| CN212257053U (en) | 10KV automatic-adjustment lightning-protection ice porcelain insulator with pressure-sensitive device | |
| CN107393666A (en) | A kind of Split high pressure series compensation damps MOV | |
| CN203573767U (en) | Metallic oxide lightning arrester | |
| CN203573766U (en) | Lightning arrester | |
| CN204517400U (en) | The external interstitial structure zinc oxide arrester of low residual voltage | |
| CN206282670U (en) | Rural power grids 10kV lightning protection needle type composite insulators | |
| CN205945045U (en) | Active single -phase thunder case that disappears | |
| CN206877774U (en) | A kind of Novel lightning arrester core group device | |
| CN113393987A (en) | Arrester core body with insulating layer, arrester body and multi-column parallel arrester | |
| CN217008812U (en) | Be suitable for high wind speed environment current collection circuit insulator lightning stroke overvoltage protector | |
| CN214068468U (en) | Suspension type explosion-proof insulator composite lightning arrester | |
| CN103714962A (en) | Protection method for safe operation of dry-type air-core series reactor | |
| CN206412160U (en) | Forceful electric power semiconductor arrester | |
| CN203351321U (en) | Voltage limiter for extra-high voltage series compensation device | |
| CN218631540U (en) | Lightning arrester | |
| CN203966704U (en) | Gapless metal-oxide lighting arrester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |