CN106158181A - Metal oxide arrester - Google Patents
Metal oxide arrester Download PDFInfo
- Publication number
- CN106158181A CN106158181A CN201610761843.2A CN201610761843A CN106158181A CN 106158181 A CN106158181 A CN 106158181A CN 201610761843 A CN201610761843 A CN 201610761843A CN 106158181 A CN106158181 A CN 106158181A
- Authority
- CN
- China
- Prior art keywords
- metal oxide
- oxide arrester
- insulating cylinder
- hollow insulating
- conductive pole
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
- H01C1/024—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being hermetically sealed
- H01C1/026—Housing; Enclosing; Embedding; Filling the housing or enclosure the housing or enclosure being hermetically sealed with gaseous or vacuum spacing between the resistive element and the housing or casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a kind of metal oxide arrester, including hollow insulating cylinder, the upper metal shrouding of hollow insulating cylinder upper end, the lower metal shrouding of hollow insulating cylinder lower end, the conductive pole being axially disposed within hollow insulating cylinder, it is coated on the cluster parachute of hollow insulating cylinder outer surface, there is gap diametrically in described hollow insulating cylinder and conductive pole, the upper end of described conductive pole contacts with upper metal shrouding, the lower end of described conductive pole contacts with lower metal shrouding, and described conductive pole is alternately superimposed on forming by zinc oxide resistance sheet and metallic conductor.The invention provides the metal oxide arrester of a kind of high heat dispersion, solve existing structure metal oxide arrester and the defect of thermal runaway and thermal explosion easily occurs.
Description
Technical field
The present invention relates to a kind of metal oxide arrester, belong to electrical equipment technical field.
Background technology
Spark gap is for protecting the insulating properties of electrical equipment in power system from the infringement of Lightning Over-voltage or to keep away
Exempt from the protection equipment that the internal overvoltage caused by equipment operates damages, be to be related to the weight that power system safety and stability runs
Want link of protection.Along with the raising of electric pressure, system overvoltage problem becomes to become increasingly conspicuous, and improves the runnability of spark gap
It is particularly important.
The metal oxide arrester of prior art is structurally by multiple in the insulating vessel being provided with upper and lower electrode
Non-linear resistor with zinc oxide as main constituent stacks together.It has high resistance thus in absolutely when voltage is normal
Edge state, and when overvoltage occurs in system, dash current enters ground through resistor disc, the pressure drop (residual voltage) of resistor disc itself due to
Its nonlinear characteristic is then maintained within a certain range, so that the Overvoltage Amplitude on equipment in parallel with spark gap is limited,
Equipment is protected.But, this structured metal oxide spark gap bears power frequency in addition to bearing power-frequency voltage for a long time the most discontinuously
The effect of the transient overvoltages such as overvoltage, lightning surge and switching overvoltage, easily causes internal oxidation zinc resistor disc temperature
Rising, and heat can not get effectively distributing, and will cause the heat damage (heat of spark gap when temperature exceedes a certain ultimate value for a long time
Collapse).Additionally, thunderstorm season, when spark gap suffers fiercely to be struck by lightning, lightning impulse big current flowing resistance sheet so that it is absorb
The biggest impact energy, because this energy can not the most quickly conduct and discharge so that spark gap internal gas pressure and temperature
Drastically increase, frequently result in explosion accident and occur, have a strong impact on power system safety and stability and run.
Summary of the invention
It is an object of the invention to provide a kind of metal oxide arrester, for existing structure metal oxide arrester
Easily there is thermal runaway and the defect of thermal explosion, it is provided that the metal oxide arrester of a kind of high heat dispersion.
The purpose of the present invention is achieved by the following technical programs:
A kind of metal oxide arrester, including hollow insulating cylinder 2, the upper metal shrouding 3 of hollow insulating cylinder 2 upper end, sky
The lower metal shrouding 4 of core insulation cylinder 2 lower end, the conductive pole 5 being axially disposed within hollow insulating cylinder 2, it is coated on hollow insulating cylinder 2
The cluster parachute 6 of outer surface, there is gap 7 in described hollow insulating cylinder 2 and conductive pole 5, the upper end of described conductive pole 5 with upper diametrically
Metal shrouding 3 contacts, and the lower end of described conductive pole 5 contacts with lower metal shrouding 4, and described conductive pole 5 is by zinc oxide resistance sheet 8 He
Metallic conductor 9 is alternately superimposed on forming.
The purpose of the present invention can also be realized further by techniques below measure:
Aforementioned metal oxides spark gap, wherein metallic conductor 9 is I-shaped structure.
Aforementioned metal oxides spark gap, wherein the material of metallic conductor 9 is aluminum or copper.
Aforementioned metal oxides spark gap, is filled with fluid insulating material 10, described fluid insulating material in its intermediate gap 7
10 is insulating properties gas or insulating liquid.
Aforementioned metal oxides spark gap, the material of its hollow core insulating cylinder 2 is epoxy resin, the base of described epoxy resin
Body is evenly distributed with conductive particles.
Aforementioned metal oxides spark gap, wherein the material of cluster parachute 6 is silicone rubber, and the matrix of described silicone rubber is uniformly distributed
There is conductive particles.
Aforementioned metal oxides spark gap, wherein metallic conductor 9 is being radially provided with through hole 11.
Aforementioned metal oxides spark gap, wherein metallic conductor 9 offers through hole radially at the middle part of I-shaped structure
11。
Aforementioned metal oxides spark gap, wherein conductive particles is aluminium oxide, silicon oxide, zinc oxide, aluminium nitride, nitridation
Boron, carborundum, the combination of graphite or one of which.
Compared with prior art, the invention has the beneficial effects as follows:
One, use metallic conductor, utilize the heat conductivility that the metal material such as copper or aluminum is excellent, accelerate heat transmission, at oxygen
When change zinc resistor disc bears overvoltage and flows through thunderbolt big electric current, it is to avoid the thermal runaway caused because heat concentrates or thermal explosion,
Metallic conductor uses I-shaped structure to be conducive to increasing and surrounding medium contact area simultaneously, reduces volume weight.
Two, insulating properties gas or insulating liquid is used to accelerate heat as filled media, the mobility of available fluid
Conduction and diffusion.
Three, use the conductive particles in insulating cylinder and cluster parachute material, the heat conductivity of material can be increased, promote spark gap with
The heat-exchange capacity of external environment, promotes integral heat sink effect.
Four, using the through-hole structure on I-shaped metallic conductor, can increase the flow path of fluid, heat radiation is imitated
Really.
Accompanying drawing explanation
Fig. 1 is the structural representation of the metal oxide arrester of the present invention；
Fig. 2 is that I-shaped metallic conductor offers through-hole structure schematic diagram.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the structure of its a kind of metal oxide arrester 1 provided by the preferred embodiment for the present invention is shown
It is intended to.This metal oxide arrester 1 includes hollow insulating cylinder 2, the upper metal shrouding 3 of hollow insulating cylinder 2 upper end, hollow insulation
The lower metal shrouding 4 of cylinder 2 lower ends, it is axially disposed within the conductive pole 5 at hollow insulating cylinder 2 center, is coated on outside hollow insulating cylinder 2
Cluster parachute 6.There is gap 7 in hollow insulating cylinder 2 and conductive pole 5, conductive pole 5 by zinc oxide resistance sheet 8 and " work " word diametrically
The metallic conductor 9 of shape is alternately superimposed on forming, and the upper end of conductive pole 5 contacts with upper metal shrouding 3, the lower end of conductive pole 5 and lower gold
Belong to shrouding 4 to contact.
The material of the metallic conductor 9 of I-shaped can be any one in aluminum or copper, utilizes the heat conductivility of its excellence,
Heat conduction can be accelerated.
Fluid insulating material 10 can be filled further in its intermediate gap 7.Fluid insulating material 10 can be insulating properties gas
Any one in body or insulating liquid.Above-mentioned insulating properties gas can be dry air, nitrogen, or sulfur hexafluoride gas.
Above-mentioned insulating liquid can be aromatic hydrocarbons artificial oil, silicone oil, Esters oil or ethers and sulfone class artificial oil.Above-mentioned material exists
While ensureing the electrical insulation properties in gap 7, utilize the mobility of fluid can accelerate heat conduction and diffusion.
Hollow insulating cylinder 2 is the cylindrical glass fiber reinforced epoxy resin pipe that hollow-core construction is Wrapping formed.In this enforcement
In example, as the epoxy resin of matrix material is evenly distributed with conductive particles.Above-mentioned conductive particles can be aluminium oxide, oxidation
Silicon, zinc oxide, aluminium nitride, boron nitride, carborundum, the combination of graphite or one therein.At the electricity ensureing hollow insulating cylinder 2
While gas insulating properties, improve its heat conductivity.
Described cluster parachute 6 is in the outside of hollow insulating cylinder 2 by silicon rubber vulcanization (solidification) forming covered.Above-mentioned silicone rubber can
To be high-temperature silicon disulfide rubber, room temperature vulcanized silicone rubber or liquid silastic.In the present embodiment, as matrix material
Silicone rubber in be evenly distributed with conductive particles.Above-mentioned conductive particles can be aluminium oxide, silicon oxide, zinc oxide, aluminium nitride, nitrogen
Change boron, carborundum, the one of graphite or combination.While ensureing the electrical insulation properties of cluster parachute 6, improve its heat conductivity.
As in figure 2 it is shown, offer through hole 11 on the axis of I-shaped metallic conductor 9 further, fluid insulation can be increased
The flow path of material 10, further improving radiating effect.
In addition to the implementation, the present invention can also have other embodiments, all employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (10)
1. a metal oxide arrester, including hollow insulating cylinder, the upper metal shrouding of hollow insulating cylinder upper end, hollow insulation
The cylinder lower metal shrouding of lower end, the conductive pole being axially disposed within hollow insulating cylinder, it is coated on the umbrella of hollow insulating cylinder outer surface
Group, there is gap in described hollow insulating cylinder and conductive pole, the upper end of described conductive pole contacts with upper metal shrouding, institute diametrically
The lower end stating conductive pole contacts with lower metal shrouding, it is characterised in that described conductive pole is by zinc oxide resistance sheet and metallic conductor
It is alternately superimposed on forming.
2. metal oxide arrester as claimed in claim 1, it is characterised in that described metallic conductor is I-shaped knot
Structure.
3. metal oxide arrester as claimed in claim 1, it is characterised in that the material of described metallic conductor be aluminum or
Copper.
4. metal oxide arrester as claimed in claim 1, it is characterised in that be filled with fluid insulation material in described gap
Material, described fluid insulating material is insulating properties gas or insulating liquid.
5. metal oxide arrester as claimed in claim 1, it is characterised in that the material of described hollow insulating cylinder is epoxy
Resin, the matrix of described epoxy resin is evenly distributed with conductive particles.
6. metal oxide arrester as claimed in claim 1, it is characterised in that the material of described cluster parachute is silicone rubber, institute
The matrix stating silicone rubber is evenly distributed with conductive particles.
7. metal oxide arrester as claimed in claim 1, it is characterised in that described metallic conductor be radially provided with logical
Hole.
8. metal oxide arrester as claimed in claim 2, it is characterised in that described metallic conductor is in I-shaped structure
Middle part offer radial direction through hole.
9. metal oxide arrester as claimed in claim 5, it is characterised in that described conductive particles is aluminium oxide, oxidation
Silicon, zinc oxide, aluminium nitride, boron nitride, carborundum, the combination of graphite or one of which.
10. metal oxide arrester as claimed in claim 6, it is characterised in that described conductive particles is aluminium oxide, oxidation
Silicon, zinc oxide, aluminium nitride, boron nitride, carborundum, the combination of graphite or one of which.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761843.2A CN106158181A (en) | 2016-08-29 | 2016-08-29 | Metal oxide arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761843.2A CN106158181A (en) | 2016-08-29 | 2016-08-29 | Metal oxide arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106158181A true CN106158181A (en) | 2016-11-23 |
Family
ID=57344129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610761843.2A Pending CN106158181A (en) | 2016-08-29 | 2016-08-29 | Metal oxide arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106158181A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053958A (en) * | 2017-12-20 | 2018-05-18 | 国网湖南省电力有限公司 | A kind of arrester |
| CN108565084A (en) * | 2018-06-13 | 2018-09-21 | 泰州学院 | A kind of novel series gap composite insulating metal oxide lightning arrester |
| CN108766697A (en) * | 2018-06-13 | 2018-11-06 | 泰州学院 | A kind of composite insulating metal oxide lightning arrester |
| CN108922704A (en) * | 2018-07-31 | 2018-11-30 | 芜湖市凯鑫避雷器有限责任公司 | A kind of metal oxide arrester with heat sinking function |
| CN109817403A (en) * | 2019-03-14 | 2019-05-28 | 合肥格威特电气技术有限公司 | A kind of metal oxide arrester that thermal diffusivity is strong |
| WO2020043452A1 (en) * | 2018-08-30 | 2020-03-05 | Siemens Aktiengesellschaft | Item of electrical equipment and production method for an item of electrical equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11135306A (en) * | 1997-10-27 | 1999-05-21 | Fuji Electric Co Ltd | Zinc oxide arrester |
| CN102648501A (en) * | 2009-12-04 | 2012-08-22 | Abb研究有限公司 | A high voltage surge arrester |
| CN205354788U (en) * | 2016-01-26 | 2016-06-29 | 河南省三禾电气有限公司 | Novel zinc oxide arrester with cooling function |
| CN205984482U (en) * | 2016-08-29 | 2017-02-22 | 国网江苏省电力公司镇江供电公司 | MOA (metal oxide arrester) |
-
2016
- 2016-08-29 CN CN201610761843.2A patent/CN106158181A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11135306A (en) * | 1997-10-27 | 1999-05-21 | Fuji Electric Co Ltd | Zinc oxide arrester |
| CN102648501A (en) * | 2009-12-04 | 2012-08-22 | Abb研究有限公司 | A high voltage surge arrester |
| CN205354788U (en) * | 2016-01-26 | 2016-06-29 | 河南省三禾电气有限公司 | Novel zinc oxide arrester with cooling function |
| CN205984482U (en) * | 2016-08-29 | 2017-02-22 | 国网江苏省电力公司镇江供电公司 | MOA (metal oxide arrester) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053958A (en) * | 2017-12-20 | 2018-05-18 | 国网湖南省电力有限公司 | A kind of arrester |
| CN108565084A (en) * | 2018-06-13 | 2018-09-21 | 泰州学院 | A kind of novel series gap composite insulating metal oxide lightning arrester |
| CN108766697A (en) * | 2018-06-13 | 2018-11-06 | 泰州学院 | A kind of composite insulating metal oxide lightning arrester |
| CN108766697B (en) * | 2018-06-13 | 2023-10-03 | 泰州学院 | Composite insulating metal oxide lightning arrester |
| CN108565084B (en) * | 2018-06-13 | 2024-04-12 | 泰州学院 | Novel series gap composite insulation metal oxide lightning arrester |
| CN108922704A (en) * | 2018-07-31 | 2018-11-30 | 芜湖市凯鑫避雷器有限责任公司 | A kind of metal oxide arrester with heat sinking function |
| CN108922704B (en) * | 2018-07-31 | 2019-12-24 | 芜湖市凯鑫避雷器有限责任公司 | Metal oxide arrester with heat dissipation function |
| WO2020043452A1 (en) * | 2018-08-30 | 2020-03-05 | Siemens Aktiengesellschaft | Item of electrical equipment and production method for an item of electrical equipment |
| US11636960B2 (en) | 2018-08-30 | 2023-04-25 | Siemens Energy Global GmbH & Co. KG | Surge arrester and production method for a surge arrester |
| CN109817403A (en) * | 2019-03-14 | 2019-05-28 | 合肥格威特电气技术有限公司 | A kind of metal oxide arrester that thermal diffusivity is strong |
| CN109817403B (en) * | 2019-03-14 | 2020-12-29 | 合肥格威特电气技术有限公司 | Metal oxide lightning arrester with high heat dissipation performance |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |