CN105122386A - Encapsulated surge arrester - Google Patents
Encapsulated surge arrester Download PDFInfo
- Publication number
- CN105122386A CN105122386A CN201380075741.XA CN201380075741A CN105122386A CN 105122386 A CN105122386 A CN 105122386A CN 201380075741 A CN201380075741 A CN 201380075741A CN 105122386 A CN105122386 A CN 105122386A
- Authority
- CN
- China
- Prior art keywords
- post
- stacking
- middleware
- housing
- surge 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.)
- Pending
Links
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
Abstract
The invention relates to a surge arrester (1) having a fluid-tight housing (2) and an active part (6) arranged in the housing (2) for discharging an overvoltage. The active part (6) comprises arrester elements (8) arranged in stacks (7), wherein a plurality of stacks (7) which are arranged above one another and are separated from one another by insulating intermediate pieces (9) form a column (10). The active part (6) has a plurality of such columns (10), wherein stacks (7) of adjacent columns (10) are electrically connected to one another in such a way that the flow path (11) is routed in a meandering shape through the active part (6). According to the invention, the columns (10) are arranged next to one another in a row. Such a surge arrester (1) has particularly compact dimensions and is thus particularly well adapted to the confined space conditions in high-voltage switchgear.
Description
Technical field
The present invention relates to a kind of surge arrester of the packaging shell by Fluid Sealing of the preamble according to claim 1.
Background technology
Surge arrester is such as the protection system of switchgear, and this overvoltage is directed to the earth when there is the overvoltage caused by the fault of lightning or other subsystems and the miscellaneous part of protection switch equipment thus by it.
Such surge arrester comprises one or more effective member (Aktivteile), and it has the rheostat post constructed by each air-cylinder type varistor element.The feature of varistor element is the resistance depending on voltage.Under low voltage condition, it is as insulator work.From the specific threshold voltage depending on material, varistor element shows good conductivity.Usual varistor element is by the metal oxide manufacture of such as zinc oxide.Arresting element limits two ends by end accessories (Endarmaturen), and described end fitting is set up and switchgear and the electrical contact with the earth.In order to also ensure good electrical contact under mechanical load, rheostat post must be bound together under stress.This can carry out by the following, that is, preferably such as managed by the stretching element of the constructed in plastic material of glass fiber reinforcement, to restrict or rod is tensioned under tension in end fitting.Stretching element at this around rheostat post.
For the application in gas isolated switchgear, surge arrester has the fluid-tight housing of encapsulation, and described housing surrounds arresting element.Housing in this case raising resistance to sparking energy and utilize liquid, normally sulphur hexafluoride to fill.Housing is such as made up of and electrical grounding metal electric conducting material.The contact that the end fitting of discharge column (Ableitsaeule) guides through housing through one and ground connection.Another end fitting is connected with the contact electrical on the outside being positioned at housing by sleeve pipe, and described contact is used for being connected to switchgear.
Such as known such surge arrester from DE102011077394A1.The effective member of there single-column is arranged in the housing of Fluid Sealing.But for high voltage, effective member can until several meters long.
From the known a kind of surge arrester with the effective member be made up of four posts of US4814936A1.Described post is symmetrically arranged in square around housing axle (Gehauseachse).Although this structure is shorter than above-mentioned in longitudinal size, in lateral dimension, need more structure spaces for this reason.
Summary of the invention
Task of the present invention is, proposes a kind of surge arrester, and it mates with the locational requirement of switchgear better.
This task utilizes and solves according to apparatus of the present invention of claim 1.
Have the housing of the Fluid Sealing with housing wall at this surge arrester, described housing wall extends between lower cover and upper cover along housing axle.In addition surge arrester also has the layout effective member for overvoltage being discharged in the housing, and it comprises the arresting element by stacked arrangement, wherein multiple stacked up and down and by the middleware of insulation stacking formation post disconnected from each other.Effective member has multiple post, and its longitudinal axis is arranged in housing axle, and the stacking of wherein adjacent post is electrically connected mutually as making current path be guided by effective member circuitously.Described being connected such as is undertaken by the band being arranged in cable in the outer cover of arresting element or conduction, but carry out preferably by connector, then described connector arrange between the middleware that two heaps superimposition of two adjacent posts is adjacent with it respectively and two adjacent to be stackingly electrically connected mutually.According to the present invention, post is arranged side by side in rows.Relative to the surge arrester of effective member with a single-column, obviously shorter according to surge arrester of the present invention.Relative to the surge arrester of the effective member post had according to arranged in squares, narrower due to the layout in a row of post according to surge arrester of the present invention.Usually not have identical many positions in all directions in switchgear.According to surge arrester of the present invention can in switchgear such orientation, make its narrow side that the direction that there is less position is shown.
In a kind of favorable structure, housing wall has elliptic cross-section facial contour along housing axle in a fragment, and described profile has major axis and minor axis, and the row of its center pillar is along long axis.Oval housing is matched with the layout in a row of post best and however also has high withstand voltage properties.
In addition preferably, in adjacent post according to the identical height placement middleware of post and middleware and and adjacent stacking in the both sides of middleware between arrange connector, one of a post stacking with adjacent post to be stackingly electrically connected by respectively.By this layout, for a middleware, can set up and be electrically connected with stacking two of adjacent post.Middleware can be saved thus and post becomes shorter thus.
In another favorable structure, a middleware and the middleware arranged on identical height of adjacent post of a post are configured to the end of the supporting bracket (Stuezplatte) of single-piece.The additional mechanical that middleware can be used as between two adjacent posts thus connects, and this improves the mechanical stability of effective member.
In addition a kind of favorable structure of the present invention is set to, and connector is the layer of the upper side and lower side being coated in supporting bracket.Installation is made to become easy thus, because only need utilize parts instead of utilize three component workings.
Accompanying drawing explanation
The present invention is explained in detail below in conjunction with accompanying drawing.At this
Fig. 1 shows according to surge arrester of the present invention according to vertical section,
Fig. 2 shows the surge arrester of Fig. 1 according to vertical view.
Corresponding parts utilize identical Reference numeral to represent mutually in the accompanying drawings.The Reference numeral with additional letter represents similar element.If Reference numeral does not use additional letter, then refer to all corresponding elements.
Embodiment
Fig. 1 shows according to surge arrester 1 of the present invention according to vertical section.Fig. 2 shows same surge arrester according to vertical view.The post 10a of effective member 6,10b and 10c can be shown through lid 5 at this with having an X-rayed.Surge arrester 1 have Fluid Sealing, usually by electric conducting material form and the housing 2 of electrical grounding.Housing 2 has lower cover 4 and upper cover 5.Between lid 4,5, housing wall 3 extends along housing axle 30.Housing in ready state with insulation liquid as oil or sulphur hexafluoride fill.In housing 2, be furnished with effective member 6, it is for discharging overvoltage.Effective member 6 is limited by upper end accessory 20 on high-tension side end 26 place.This upper end accessory and high-voltage contact 16 are electrically connected, and electrical connection is outwards guided through upper cover 5 by bushing 25 again by high-voltage contact.Described electrical connection can be utilized connection at this unshowned high voltage switchgear is established in housing 2 outside.On the end 27 of the ground side of effective member 6, this end limits by this three bottom accessory 21 partly illustrated.But the end fitting 21 of single-piece is also fine.Bottom accessory 21 can be constructed by electric conducting material, so grounding connection line outwards can be guided from effective member 6 through bottom accessory 21 and lower cover 4.Can by this grounding connection line ground connection in housing 2 outside.Alternatively, bottom accessory 21 can electric insulation ground structure.So effective member 6 can by Fluid Sealing and relative to lower cover 4 electric insulation, be connected to the ground in housing 3 outside at this unshowned earthing contact.Usual effective member 6 binds together by this unshowned stretching element.It is cage type around effective member arrange or around effective member as single cast stretching element.So stretching element or multiple stretching element are on a side in upper end accessory 20, tensioning and being bound together by effective member in bottom accessory 21 or lower cover 4 on another side.
Effective member 6 has three post 10a at this, 10b and 10c.By two, the replacement of a four or more post 10 arranges feasible too.Preferably, there is according to surge arrester of the present invention the effective member 6 constructed by three or more posts 10.Post 10 extends along the longitudinal axis 31 being parallel to housing axle 30 and is arranged side by side in rows respectively.Two outer post 10a, 10c are in the post 10b both sides of centre.Post 10 is made up of multiple stacking 7 of arresting element 8 respectively.Stacking 7 is disconnected from each other by the middleware 9 of insulation.Arresting element 8 this only example utilize Reference numeral to represent and be usually made up of the row of the varistor blocks of dish type.Described structure to be explained in detail for post 10a.Post 10a is made up of 18 arresting elements 8 altogether, and described arresting element is stacked up and down in four stacking 7a, 7b, 7c and 7d, and wherein stacking 7a comprises three arresting elements 8, and stacking 7b, 7c and 7d comprise five arresting elements respectively.Four stacking 7a, 7b, 7c and 7d are isolated mutually by middleware 9a, 9b and 9c of three insulation and at a post inside electric insulation relative to each other.Stacking 7b and 7c such as isolates mutually and it is relative to each other insulated by middleware 9b.At end 27 place of the ground side of effective member 6, the middleware 9d that post is terminated is adjacent to stacking 7d, and this middleware makes stacking 7d insulate relative to end fitting 21.Post 10b and 10c like configurations, even if stacking 7, arresting element 8 and the middleware 9 with varying number.Preferably, outer post 10a, 10c construct in the same manner, but symmetrically arrange.In preferred implementation shown here, stacking 7 of inner post 10b, or the post 10 of inside, all having the arresting element 8 of equal number, is two at this.In preferred flexible program preferably, inner post 10b only have with n arresting element stacking 7 and outer post 10a, 10c have with 2n+1 arresting element stacking 7, wherein outer post 10a, 10c in side respectively by the stacking end with n+1 arresting element 8.
Between stacking 7 and adjacent middleware 9, arrange a connector 9 respectively.Two stacking 7 of adjacent post 10 are electrically connected mutually by this connector 9.So such as arrange connector 14c between stacking 7c and middleware 9b adjacent with it in post 10.This connector 14c guides from post 10a perpendicular to its longitudinal axis 31 until adjacent post 10b, and in described adjacent post, this connector is arranged between stacking 7i and middleware 9f adjacent with it.So post 10a with 10b is connected by connector 14c on identical height.Electrical connection is set up between stacking 7c and 7i.Stacking 7c and 7i connects thus.Namely interrupted at this middleware 9c by electric insulation by the current path 11 of post 10a and guide through post 10b.Current path 11 is started at upper end accessory 20 place by effective member 6, stacking 7a further by post 10a on the direction of the end 27 of ground side guides, the stacking 7e of post 10b is directed to through connector 14a, there on the direction of on high-tension side end 26, the stacking 7g of post 10c is directed to further by connector 14d, there again towards the end 27 of ground side, return the stacking 7c being directed to post 10a through stacking 7f, connector 14b finally by connector 14e.In a similar manner, so current path 11 indentation ground to be to the last directed to the stacking 7h of post 10c by stacking 7 of mutual series connection by whole effective member 6.It is drawn from housing 2 through bottom accessory 21 or earthing contact as already mentioned there.Due to the illustrated reason of general view, the level connection joint line of current path 11 illustrates on connector 14 side.In fact, yes extends through connector 14 for the electric current of current path 11.
At Liang Chu, middleware is configured to the supporting bracket 15a of single-piece, the end of 15b.So the middleware of two adjacent posts is comprehensively supporting bracket 15a, the 15b of a single-piece.So the middleware between stacking 7c and 7d of post 10b is comprehensively supporting bracket 15a together with the middleware between stacking 7j and 7k of post 10b.Post 10a with 10b is connected and is used for improving the mechanical stability of effective member 6 by supporting bracket 15a on phase co-altitude.Middleware 9 and supporting bracket 15 can by the material manufactures of the solid of such as epoxy resin, casting resin or other electric insulations.When clearly not mentioning supporting bracket 15, below for being also suitable for supporting bracket 15 described by middleware 9.
Except being positioned at the middleware 9 of end of stacking 10, for all middlewares 9, side and downside are arranged respectively a connector 14 in middleware 9 and both sides with it between adjacent stacking 7 thereon.Namely for each of these middlewares 9, set up and be electrically connected with two of adjacent post 10.Middleware 9 and connector 14 are configured in its gauge, and post 10 has identical height, even if it comprises the middleware 9 and stacking 7 of varying number.Inner at post 10, between two stacking 7 of a post 10, arrange a middleware and two connectors 14 respectively, the gross thickness of middleware 9 and two connectors 14 is corresponding to the thickness of an arresting element 8.In the end of post 10, the gross thickness of middleware 9 and a connector 14 is corresponding to the thickness of an arresting element.Connector 14 can be thin sheet metal, or is be coated to the metal level on the upper side and lower side of supporting bracket 15 when supporting bracket 15.
Along housing axle 30, by fragment 17, housing wall 3 has elliptic cross-section facial contour, wherein the oval shape comprising ellipse, avette or egg type.Housing 2 has major axis 12 and minor axis 13 at this, and wherein major axis 12 is longer than minor axis 13.The arrangement of post 10 is arranged along major axis 12.
Housing 2 can have pipe box 22 in addition, and it can utilize manhole cover 23 to close.The exhaust outlet sealed with film can be arranged in manhole cover, tear in the pressure increase situation that its fault in housing 2 causes and pressure is discharged.The liquid stream of formation can be directed to following direction at this by exhaust protection 24, in said direction, does not have other equipments unit can be subject to liquid stream impact.
Claims (5)
1. a surge arrester (1), it has the housing (2) with the Fluid Sealing of housing wall (3), described housing wall extends between lower cover (4) and upper cover (5) along housing axle (30), also there is the effective member (6) for overvoltage being discharged be arranged in housing (2), it comprises the arresting element (8) arranged by stacking (7), wherein multiple stacked up and down and form a post (10) by stacking (7) that the middleware (9) of insulation is disconnected from each other, and wherein effective member (6) has multiple post (10), its longitudinal axis (31) is parallel to housing axle (30) and arranges, stacking (7) of wherein adjacent post (10) are electrically connected mutually as making current path (11) be guided by effective member (6) circuitously,
It is characterized in that, described post (10) is arranged side by side in rows.
2. surge arrester according to claim 1 (1), is characterized in that,
Described housing wall (3) has elliptic cross-section facial contour along housing axle (30) in a fragment (17), described profile has major axis (12) and minor axis (13), and the row of its center pillar (10) arranges along major axis (12).
3. surge arrester according to claim 1 and 2 (1), is characterized in that,
In adjacent post (10) according to identical height placement middleware (9) and middleware (9) and and adjacent stacking (7), the both sides of middleware between arrange connector (14), one of a post (10) stacking (7) one stacking (7) with adjacent post (10) are electrically connected by respectively.
4. surge arrester according to any one of claim 1 to 3 (1), is characterized in that,
A middleware (9) of a post (10) is configured to the end of the supporting bracket (15) of single-piece with the middleware (9) arranged on identical height of adjacent post (10).
5. surge arrester according to claim 4 (1), is characterized in that,
Described connector (14) is the layer of the upper side and lower side being coated in supporting bracket (15).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2013/058782 WO2014173462A1 (en) | 2013-04-26 | 2013-04-26 | Encapsulated surge arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105122386A true CN105122386A (en) | 2015-12-02 |
Family
ID=48326286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380075741.XA Pending CN105122386A (en) | 2013-04-26 | 2013-04-26 | Encapsulated surge arrester |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2976773A1 (en) |
| JP (1) | JP6324488B2 (en) |
| KR (1) | KR20150135486A (en) |
| CN (1) | CN105122386A (en) |
| WO (1) | WO2014173462A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU183133U1 (en) * | 2017-10-26 | 2018-09-12 | Закрытое акционерное общество "Завод электротехнического оборудования" (ЗАО "ЗЭТО") | OVERVOLTAGE LIMITER |
| RU224983U1 (en) * | 2024-01-10 | 2024-04-11 | Общество с ограниченной ответственностью "КОМПЛЕКСНЫЕ РЕШЕНИЯ" (ООО "КОМПЛЕКСНЫЕ РЕШЕНИЯ") | SURGE LIMITER |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3082136B1 (en) * | 2015-04-14 | 2017-11-01 | Siemens Aktiengesellschaft | Gas-insulated surge arrestor |
| EP3131098B1 (en) | 2015-08-12 | 2018-02-28 | Siemens Aktiengesellschaft | Enclosed surge voltage protector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3412273A (en) * | 1964-10-28 | 1968-11-19 | Westinghouse Electric Corp | High voltage lightning arrester having a plurality of arrester elements |
| CN1707705A (en) * | 2004-06-04 | 2005-12-14 | Abb技术有限公司 | Gas-insulated surge arrester |
| WO2009068384A1 (en) * | 2007-11-26 | 2009-06-04 | Siemens Aktiengesellschaft | Insulator arrangement |
| CN102568725A (en) * | 2010-12-01 | 2012-07-11 | 日本Ae帕瓦株式会社 | Lightning arrester |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58186183A (en) * | 1982-04-24 | 1983-10-31 | 株式会社日立製作所 | Arrester |
| JPH0773085B2 (en) | 1987-04-07 | 1995-08-02 | 株式会社日立製作所 | Ground tank type arrester |
| DE102011077394A1 (en) | 2011-06-10 | 2012-12-13 | Siemens Aktiengesellschaft | Surge arresters |
-
2013
- 2013-04-26 KR KR1020157030782A patent/KR20150135486A/en active Search and Examination
- 2013-04-26 EP EP13721317.9A patent/EP2976773A1/en not_active Withdrawn
- 2013-04-26 CN CN201380075741.XA patent/CN105122386A/en active Pending
- 2013-04-26 WO PCT/EP2013/058782 patent/WO2014173462A1/en active Application Filing
- 2013-04-26 JP JP2016509307A patent/JP6324488B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3412273A (en) * | 1964-10-28 | 1968-11-19 | Westinghouse Electric Corp | High voltage lightning arrester having a plurality of arrester elements |
| CN1707705A (en) * | 2004-06-04 | 2005-12-14 | Abb技术有限公司 | Gas-insulated surge arrester |
| WO2009068384A1 (en) * | 2007-11-26 | 2009-06-04 | Siemens Aktiengesellschaft | Insulator arrangement |
| CN102568725A (en) * | 2010-12-01 | 2012-07-11 | 日本Ae帕瓦株式会社 | Lightning arrester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU183133U1 (en) * | 2017-10-26 | 2018-09-12 | Закрытое акционерное общество "Завод электротехнического оборудования" (ЗАО "ЗЭТО") | OVERVOLTAGE LIMITER |
| RU224983U1 (en) * | 2024-01-10 | 2024-04-11 | Общество с ограниченной ответственностью "КОМПЛЕКСНЫЕ РЕШЕНИЯ" (ООО "КОМПЛЕКСНЫЕ РЕШЕНИЯ") | SURGE LIMITER |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016521003A (en) | 2016-07-14 |
| EP2976773A1 (en) | 2016-01-27 |
| KR20150135486A (en) | 2015-12-02 |
| JP6324488B2 (en) | 2018-05-16 |
| WO2014173462A1 (en) | 2014-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
|
| RJ01 | Rejection of invention patent application after publication |