CN201215749Y - surge arrester - Google Patents
surge arrester Download PDFInfo
- Publication number
- CN201215749Y CN201215749Y CNU2008200042201U CN200820004220U CN201215749Y CN 201215749 Y CN201215749 Y CN 201215749Y CN U2008200042201 U CNU2008200042201 U CN U2008200042201U CN 200820004220 U CN200820004220 U CN 200820004220U CN 201215749 Y CN201215749 Y CN 201215749Y
- Authority
- CN
- China
- Prior art keywords
- surge arrester
- varistor
- electrically insulating
- basalt
- insulating member
- 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.)
- Expired - Lifetime
Links
- 229920002748 Basalt fiber Polymers 0.000 claims description 25
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 abstract description 4
- 238000010292 electrical insulation Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 3
- 229960001296 zinc oxide Drugs 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006241 epoxy vinyl ester resin Polymers 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- -1 zinc oxide Chemical class 0.000 description 1
Images
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
- H01C7/126—Means for protecting against excessive pressure or for disconnecting in case of failure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model relates to a surge arrester (1), which comprises a first end electrode (2), a second end electrode (3), a laminated piece (4) which is formed by a plurality of voltage dependent resistor blocks (5), and the voltage dependent resistor blocks (5) are successively arranged between the first end electrode and the second end electrode along the axial direction of the voltage dependent resistor blocks (5), and at least an electrical insulation component (6,7,8) which comprises basalt.
Description
Technical field
The utility model relates to a kind of surge arrester.Specifically, the utility model relates to a kind of mesohigh surge arrester that comprises insulating component.
Background technology
Surge arrester is used for preventing the electric equipment overvoltage of electric power system.The universal product that is used for this purpose is the cylindrical piece of making such as metal oxides such as zinc oxide, promptly so-called piezo-resistance.These piezo-resistances have resistance height when low-voltage and the low characteristic of resistance during at high voltage.
In this specification and following claim, " mesohigh " is meant 1kV and higher voltage.
Can bear than a single piezo-resistance and still can present high-resistance voltage when big when operating voltage, several varistor blocks are serially connected in laminates.For making big electric current flow through this laminates, must between piece, realize enough contact pressures.This realizes first termination electrode by providing with the clamping component that second termination electrode is connected.
US 5,291, and 366 disclose a kind of surge arrester, and this surge arrester has by means of clamping component and is clamped in two formed laminates of the zinc-oxide block between the termination electrode, and this clamping component is made up of two insulation components that connect two termination electrodes.Clamping component is made by the made rigid plastics of glass-fiber reinforced epoxy resin.
The size that limits surge arrester is comparatively crucial, and because surge arrester means its bearing great current at short notice for the defencive function of for example transformer etc., so can not get rid of breakdown risk fully forever.For example, can this thing happens when discharging in varistor block or around the varistor block: increase owing to produce the pressure that gas caused, this discharge may make the housing explosion of surge arrester.
EP 0683496 B1 discloses a kind of surge arrester, piezo-resistance laminates and be the explosion-proof band that the clamping component of compression ring form made by insulating material and radially center on wherein, and explosion-proof band is provided with the open portion that is used for release pressure.Explosion-proof band can be made up of a plurality of tubular rings, and these a plurality of tubular rings are set to that specific axial distance is arranged therebetween.The shell of being made by for example rubber etc. is cast on explosion-proof being with, and makes this material also fill the gap between piezo-resistance laminates and the ring.Explosion-proof band or compression ring can be included in glass fibre or the aramid fiber such as continuous reeling in the thermosetting resins such as epoxy resin, vinyl ester resin or mylar.
EP 0355480 B1 discloses a kind of surge arrester, and wherein clamping component and explosion-proof band are arranged to the cage structure of cross winding, and this cage structure is arranged on around the surge arrester and has the open portion that is used for release pressure.This cage structure is made by the glass fibre of wet epoxy coating, and this glass fibre is wound into cage structure, solidifies then.
Surge arrester is provided with aluminium matter pedestal usually to support surge arrester at its second end place.Load and motion that the pedestal of surge arrester also must bear the load of surge arrester and bear incoming line sometimes.Sometimes surge arrester comprises that several are arranged on the discharger unit on the top of each other, makes surge arrester become the heavy load on the pedestal that also further increased like this.For with surge arrester and the earth insulation, between the earth and aluminium matter pedestal, the made footing of a plurality of insulating material is set.
Existing surge arrester all needs to be improved aspect some, for example improves the mechanical strength of surge arrester, more for example as the substitute of the saving cost of existing surge arrester.
The utility model content
The purpose of this utility model provides a kind of surge arrester, and it comprises: first termination electrode and second termination electrode; The formed laminates of a plurality of varistor blocks, described a plurality of varistor blocks axially one after the other are provided with between described first termination electrode and described second termination electrode along described varistor block; And at least one electric insulation component.Described surge arrester is compared with the surge arrester of prior art and is had improved or similar performance.
According to first aspect of the present utility model, this purpose is realized that by the aforementioned electric electronic surge arrester wherein, the electric insulation component of described surge arrester comprises basalt.According to following description and dependent claims, favourable execution mode of the present utility model will be more obvious.
According to an execution mode of the present utility model, surge arrester comprises: first termination electrode and second termination electrode; The formed laminates of a plurality of cylindrical varistor blocks, described a plurality of varistor blocks axially one after the other are provided with between described first termination electrode and described second termination electrode along varistor block; And at least one comprises basaltic electric insulation component.By in described at least one electric insulation component, using basalt, make and using when being used for, being improved of insulating component such as mechanical strengths such as tensile strength according to the insulating component identical materials amount in the surge arrester of prior art.
According to an execution mode of the present utility model, electric insulation component comprises the basalt that is the basalt fibre form.By at least one electric insulation component of surge arrester, using basalt fibre to substitute previously used material, with the insulating component of same size in the surge arrester of foundation prior art comparatively speaking, the tensile strength of member has improved.
According to an execution mode of the present utility model, electric insulation component comprises the basalt fibre in the embedded resin.Resin is preferably thermosetting resin, for example epoxy resin, vinyl ester resin or mylar etc.
According to an execution mode of the present utility model, electric insulation component is the explosion-proof band that is provided with around described varistor block.For example, explosion-proof band is arranged to the ring around the piezo-resistance laminates, and the open portion that explosion-proof band has between ring is allowed release pressure under with the situation in short circuit.By making explosion-proof band by the material that comprises basalt fibre, explosion-proof band will have high-tensile very good mechanical properties.
According to an execution mode of the present utility model, electric insulation component is with interconnected at least one clamping component of described electrode, and making provides axial contact pressure between varistor block and electrode.By making clamping component by the material that comprises basalt fibre, clamping component will have high-tensile very good mechanical properties.
According to an execution mode of the present utility model, described clamping component is a compression ring, and it centers on the laminates and the electrode of varistor block vertically.
According to an execution mode of the present utility model, described compression ring comprises the multi-turn winding that basalt fibre is made.By making compression ring by the material that comprises the multi-turn winding that basalt fibre is made, described compression ring will have high-tensile very good mechanical properties.
According to an execution mode of the present utility model, electric insulation component is arranged on the second end place of surge arrester and is used to support the insulating base of surge arrester.According to an execution mode of the present utility model, described pedestal comprises the casting epoxy resin that comprises basalt fibre.By making pedestal, because pedestal itself is with regard to insulation, so eliminated previous needs to the insulation footing between pedestal and the earth with the basalt fibre that is cast in the epoxy resin.And the pedestal that comprises basalt fibre and epoxy resin also has required intensity to bear from the load on the first end of the load of surge arrester or surge arrester.
According to an execution mode of the present utility model, electric insulation component comprises the epoxy resin of 10-60% percentage by weight and the basalt fibre of 40-90% percentage by weight, is preferably the epoxy resin of 20-50% percentage by weight and the basalt fibre of 50-80% percentage by weight.
According to second aspect of the present utility model, by using basalt fibre to realize the purpose of this utility model at the electric insulation component that is used for surge arrester.
Description of drawings
Describe the utility model in detail by embodiment below with reference to accompanying drawings, among the figure:
The schematically illustrated surge arrester that is embedded in the electric insulation shell of Fig. 1 according to the utility model execution mode;
Fig. 2 is shown schematically in the surge arrester that is embedded among electric insulation shell Fig. 1 before; And
The insulating base of the schematically illustrated foundation of Fig. 3 surge arrester of the present utility model.
Embodiment
The schematically illustrated surge arrester 1 of Fig. 1, it has first termination electrode 2 and second termination electrode 3, first end 11 places that first termination electrode 2 is arranged in surge arrester are connected to line voltage distribution, and the second end 12 places that second termination electrode 3 is arranged in surge arrester are connected to the earth.Insulating base 8 is arranged on the second end 12 places of surge arrester and is connected with the second end 12, with support surge arrester and bear the load of surge arrester 1 or the first end 11 of surge arrester on load.Pedestal is made by the basalt fibre that embeds in the epoxy resin.Electric insulation shell 10 is around the internal structure of surge arrester 1.The electric insulation shell is poured on the discharger unit, and is preferably elastomer, for example silicon rubber or Ethylene Propylene Terpolymer (EPDM) rubber etc.
Fig. 2 illustrates the surge arrester 1 that does not have electric insulation shell 10 and pedestal 8.Constitute a plurality of cylindrical varistor block 5 axially between first termination electrode 2 and second termination electrode 3, one after the other being provided with of laminates 4 along varistor block 5.Varistor block 5 is made by zinc oxide, and is circular cross section.The symmetry axis of varistor block 5 overlaps to form vertical basically laminates.The quantity and the size of varistor block are decided according to the applicable cases of surge arrester.
The clamping component 7 that is a plurality of compression ring forms is connected to each other electrode 2,3, and making provides required axial contact pressure between varistor block 5 and electrode 2,3.Compression ring is round through the shoulder 13 of first termination electrode 2 and the shoulder 14 of second termination electrode 3, and clamping electrode 2,3, makes its laminates that abuts against varistor block 54.
Continuous basalt fiber is nonmetal and inorfil.This continuous basalt fiber is by the natural basalt of fusion when about 1400 ℃ very high-temperature, and---slag that solidifies---made.By small mould the basalt of fusion is squeezed into fiber, this fiber has the diameter in the micrometer range (1-100 μ m) usually.
Explosion-proofly be provided with around varistor block 5 with the forms of a plurality of rings 6 with 6.In Fig. 2, two in the ring 6 for the sake of clarity only are shown, but in fact all are provided with this ring along whole piezo-resistance laminates 4.Ring 6 is arranged on the middle place of the height of each varistor block 5 basically.These rings are made by the basalt fibre that with epoxy resin is matrix.The size of these rings---particularly thickness---is according to the amount of the type of surge arrester and the energy that produces under the situation of electrical breakdown surge arrester and decide.Opposite with the contact surface between two adjacent varistor blocks, exist annular open portion to allow release pressure under the situation in short circuit between two adjacent ring 6.These rings comprise the epoxy resin of 20-30% percentage by weight and the basalt fibre of 70-80% percentage by weight.
The schematically illustrated insulating base 8 that is arranged on the second end 12 places of surge arrester 1 of Fig. 3 supports surge arrester when being used for having load on the first end 11 of surge arrester.Pedestal 8 is made by the basalt fibre that with epoxy resin is matrix.Pedestal comprises the epoxy resin of 10-60% percentage by weight and the basalt fibre of 40-90% percentage by weight.
In any case the utility model is not limited to above-mentioned preferred implementation.On the contrary, under the situation of the basic thought of the present utility model that does not depart from claims and limited, concerning affiliated technical field technical staff, the possible scheme of the remodeling of above-mentioned preferred implementation should be clearly.For example some surge arresters do not comprise pedestal, and should be appreciated that, surge arrester can be manufactured the pedestal that does not have Fig. 1 according to execution mode of the utility model.And explosion-proof band can be another known design, rather than above-mentioned ring.Clamping component can be the design that is different from above-mentioned compression ring.For example, clamping component can be at least one pole stock that is arranged between first termination electrode and second termination electrode.In addition, blast ring and clamping component can be merged into an independent unit according to mentioned EP 0355480 B1 in " background technology ", and can be according at least one electric insulation component in the surge arrester of the present utility model.
Claims (9)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE07002629 | 2007-02-01 | ||
| SE0700262 | 2007-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201215749Y true CN201215749Y (en) | 2009-04-01 |
Family
ID=39670273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200042201U Expired - Lifetime CN201215749Y (en) | 2007-02-01 | 2008-02-01 | surge arrester |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201215749Y (en) |
| DE (1) | DE102008005678B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058376A1 (en) * | 2016-09-28 | 2018-04-05 | Abb Schweiz Ag | Surge arrester and associated manufacturing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010043655B4 (en) * | 2010-11-09 | 2012-08-30 | Siemens Aktiengesellschaft | Surge arrester with elastic cuff |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7404517A (en) | 1973-04-09 | 1974-10-11 | ||
| DE3827531A1 (en) | 1988-08-13 | 1990-02-22 | Bayer Ag | METHOD FOR PRODUCING N-METHYLBENZAMIDE |
| CH682858A5 (en) | 1991-12-04 | 1993-11-30 | Asea Brown Boveri | Surge arresters. |
| SE516123C2 (en) | 1994-05-13 | 2001-11-19 | Abb Ab | Valve diverter, method of making such and use |
-
2008
- 2008-01-23 DE DE102008005678.2A patent/DE102008005678B4/en active Active
- 2008-02-01 CN CNU2008200042201U patent/CN201215749Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058376A1 (en) * | 2016-09-28 | 2018-04-05 | Abb Schweiz Ag | Surge arrester and associated manufacturing method |
| CN109196607A (en) * | 2016-09-28 | 2019-01-11 | Abb瑞士股份有限公司 | Arrester and relative manufacturing process |
| RU2705203C1 (en) * | 2016-09-28 | 2019-11-06 | Абб Швайц Аг | Pulse discharger and method of its manufacturing |
| US10910135B2 (en) | 2016-09-28 | 2021-02-02 | Abb Power Grids Switzerland Ag | Surge arrester and associated manufacturing method |
| CN109196607B (en) * | 2016-09-28 | 2021-06-08 | Abb电网瑞士股份公司 | Lightning arrester and related manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008005678A1 (en) | 2008-09-04 |
| DE102008005678B4 (en) | 2021-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090401 |
|
| CX01 | Expiry of patent term |