WO2010023193A1 - Überspannungsableiter mit mindestens einem ableitelement - Google Patents
Überspannungsableiter mit mindestens einem ableitelement Download PDFInfo
- Publication number
- WO2010023193A1 WO2010023193A1 PCT/EP2009/060900 EP2009060900W WO2010023193A1 WO 2010023193 A1 WO2010023193 A1 WO 2010023193A1 EP 2009060900 W EP2009060900 W EP 2009060900W WO 2010023193 A1 WO2010023193 A1 WO 2010023193A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bridge
- movable
- surge arrester
- short
- path
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it 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
-
- 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
Definitions
- the invention relates to a surge arrester having at least one diverting element, for example a varistor, as well as a disconnecting device for disconnecting the diverter element (s) from the mains, wherein the divider device comprises a thermal separation point which is integrated in the electrical connection path inside the diverter, wherein the Trennstelle a movable conductor portion or a movable conductive bridge with the diverter on the one hand and the conductor portion or the bridge on the other hand connected to a first electrical external terminal of the arrester, and comprising a biasing force generating means, such as a spring, wherein the relevant force vector directly or indirectly via a movable separating block acts on the conductor portion or the bridge in the separation direction, further in or at the end of the path of movement of the conductor portion or the bridge, a conductive element is arranged, which is triggered when Separating device comes into contact with the conductor portion or the bridge and which is in communication with a second external electrical connection to form a short-circuiting, according to the pre
- the low-impedance short circuit path connected in this way can be z. B. be used to actuate an upstream switching element, which is set to the short-circuit current of the relevant network, or to produce a defined continuous short circuit, which is defined in certain applications as a so-called fail-safe state.
- an upstream switching element which is set to the short-circuit current of the relevant network
- a defined continuous short circuit which is defined in certain applications as a so-called fail-safe state.
- EP 0 860 927 A1 to this prior art.
- This document describes a very complicated electromechanical device which monitors the current via a varistor and which switches the short circuit in the bypass to the varistor path via electromechanical contacts when a predetermined limit value is exceeded.
- the switching element is a changeover contact.
- the changeover contact closes the varistor circuit in a known manner via a soldering point. If the switching element is triggered, another contact is closed, which can be connected either as an internal or external defect indicator or just via a corresponding external connection as a short circuit.
- the characteristic of the feeding source of the local operating current is approximately equal to the short-circuit current.
- DE 10 2006 052 955 A1 discloses a further developed surge arrester having a housing and at least one diverting element, for example a varistor, where a disconnecting device is present and it is possible to retrofit the arrester in such a way that it ensures a short-circuit current can lead.
- a diverting element for example a varistor
- known separation devices for surge arresters are equipped with an additional connection, which extends the existing separation function by a short-circuit function.
- the additional connection can be configured in various ways, so that it is also possible to activate from outside on the correspondingly realized surge arrester as required.
- at least one conductive element is arranged in the path of movement of a spring-biased conductor or a spring-biased bridge, the first end of which comes into contact with the conductor section or the bridge when the disconnecting device is triggered.
- the second end of the conductive element is in communication with a second external electrical connection.
- means are provided for protecting the contact point between the conductor section or bridge and the conductive element before re-splitting Lotresten or solder material or melting material ien.
- this route still does not have sufficient dielectric strength due to the previous arc load, it will ignite again as a result of the voltage load and an arc will again be created in the arrester. In this case, the separation device has failed.
- the object of the invention is achieved by a surge arrester with at least one diverting element, in particular a varistor, as well as a separating device according to the feature combination according to claim 1, wherein the subclaims comprise at least expedient refinements and developments.
- a surge arrester with at least one diverting element for example a varistor, as well as a separating device, wherein the separating device serves to separate the at least one diverting element from the network.
- the separating device comprises a per se known thermal separation point, which is integrated into the electrical connection path within the arrester.
- a per se known thermal separation point is integrated into the electrical connection path within the arrester.
- a movable conductor portion or a movable conductive bridge with the diverter on the one hand and the conductor portion or the bridge on the other hand connected to a first electrical external terminal of the arrester.
- biasing force generating means for example, at least one spring present, wherein the force vector of the spring acts directly or indirectly via a movable separating block on the conductor section or the bridge in the separation direction.
- a conductive element is arranged, which comes into contact with the conductor portion or the bridge when triggered disconnecting device and which is in communication with a second external electrical connection to form a short-circuiter. Furthermore, means for r interruption of the short circuit in the short circuit branch, z. As a backup, be present.
- a movable insulating part is provided, which immediately before or with the achievement of the kruz gleichands in the path of movement of the conductor portion or the bridge dips u m reignition of the arc between the conductive element and the separation point to counteract or suppress or suppress.
- the movable insulating part may be formed as a plate whose longitudinal extent extends into the path of movement in the rest position.
- the plate In the actual separation process, the plate is taken from the movable bridge from its rest position. Upon reaching the short-circuit position of the movable bridge, the plate jumps back to its rest position, whereby the separation distance is extended accordingly. The separation distance is securely blocked in this case by the isolation part.
- the aforementioned wafer according to the first embodiment of the invention can be fixedly mounted at one end and have bending elastic properties.
- the platelet can be made rigid but rotatably supported at one end.
- the storage is preferably carried out so that the plate is held spring-assisted in its rest position.
- the moving out of the plate from the rest position is effected by the kinetic energy of the movable bridge in the separation process, which this energy is supplied by a corresponding spring bias.
- the movable separating block acts on the bridge in the separation case, wherein the separating block comprises the insulating part or comprises such a part.
- the isolation trestle with insulating part may have a boomerang-like shape with two legs, wherein the biasing force generating means acts on a first leg, the second leg forms the insulating part and an axis of rotation is located between the two legs.
- the movable separating block cooperates with a rotary valve as an insulating part, wherein the rotary Slider is taken in the separation process from the separation block and penetrates into theinciswegverlauf upon reaching the short-circuit state.
- the rotary valve is mounted on an axis of rotation, which differs from the pivot point of the Abtrennbocks.
- the above-described surge arrester is characterized in particular by its use in DC voltage systems with high system voltages and operating currents at short-circuit current level, in particular for photovoltaic installations.
- Fig. 1 is a schematic diagram of the first embodiment with an insulation wafer
- FIG. Fig. 2a is an illustration of the second embodiment of the invention with a specially shaped separating block having an integral insulating member in the pre-separation condition;
- Fig. 2b is a representation similar to that of FIG. 2a, but in the state after the separation and realization of the short circuit;
- Fig. 3a shows a further embodiment of the invention with a rotary valve, which is at least partially entrained by a rotatable Abtrennbock, in the state before the separation;
- Fig. 3b shows a representation similar to that of FIG. 3a, but in the state of separation and reached short circuit;
- Fig. 4a shows a fourth embodiment of the invention with an insulating part designed as a slide in the state before the separation and
- FIG. 4b is a diagram similar to that of FIG. 4a, but in the separated and short-circuited state.
- the embodiments are common, for the purpose of increasing the dielectric strength of the separation distance before switching off an external switching device in the short circuit path to use an insulating part or a slider.
- This insulating part or the slider is preferably introduced only when the movable tongue 3 has reached the short-circuit contact b. This ensures that the slider is not damaged by the arc and the arc provides a possible alternative way of reignition by burning or bridging the slider sideways. For this purpose, a timely coordinated introduction of the insulating part or the slider in conjunction with the movement of the switching tongue 3 is essential.
- the slide or the insulating part should block the separation path as safely as possible and significantly lengthen the path between part 3 and c.
- a varistor arrester 2 which has two connection points or connection paths A and B.
- a movable conductor portion or a movable conductive bridge 3 is pivotally movable about the contact point a.
- a solid varistor terminal c is connected to a corresponding end of the tongue 3 z. B. connected by a low melting solder, so that here the desired thermal separation point results.
- this separation point melts and it moves the tongue 3 and the movable Liche conductive bridge 3 (as indicated by the arrow) in the position 3 '. Then, when the free end of the tongue 3 reaches the conductive member b, which is connected to the connection path B, the desired short circuit is achieved.
- Fig. 1 is located in the path of movement of the movable conductive bridge 3, a z. B. elastic insulation plate 100, the z. B. at the position 101 can be fastened.
- a fixed insulating plate 100 which is fixed in a spring-biased or resettable manner at the position 101.
- the plate 100 is displaced or slightly bent. Shortly before or when the switching tongue releases the short-circuiter, d. H. reaches the conductive element b, the plate 100 moves at high speed back to its rest position or initial position, between the parts b and c, so that there is no direct path between these two contacts for a possible arc.
- a separating block 13 which is pivotable about a fixed point (arrow depiction within the part 13).
- This separation block 13 has a boomerang-like shape.
- a first end of the Abtrennbocks 13 is standing with a spring 1 u nter bias.
- the second end of the Abtrennbocks 13 forms the actual insulating part 102nd
- the bridge 3 moves towards the conductive element b (position 3 '), so that the desired short-circuiting occurs.
- the insulating part 102 dips into the path between c and b with the result of the desired blocking of the present separation line.
- the insulating part 102 of the separation block 13 may be guided by grooves, so that no continuous sliding surfaces between the parts c and b remain.
- the parts c and b or the bridge 3 can also be raised relative to the surface of insulating material which serves to cover the varistor 2 (not shown).
- the achieved position of the insulating part 102 in the case of short circuiting and disconnection shows the illustration according to FIG. 2b.
- the separating block 13 is biased by a spring, not shown there, wherein the biasing force, shown in the direction of the arrow within the part 13 results.
- a rotary valve 103 is between the Abtrennbock 13 and the bridge 3 as an insulating part.
- This rotary valve is rotatably supported on a rotation axis whose axis position is different from the rotation axis of the Abtrennbocks 13.
- the bridge 3 moves from position c to position b, d. H. to the conductive element b with the result that the desired short-circuit state occurs (positional representation according to 3 ').
- the short circuit condition and the then changed position of the rotary valve 103 is shown in FIG. 3b.
- the rotary valve dips here again in the distance between the parts c and b and increases the separation distance.
- the position relative to the parts 13 and 103 can also be made resettable.
- the movement of the rotary valve 103 is coordinated to the movement of the Abtrennbocks 13 and its action on the bridge. 3
- the rotary valve can also be designed scoop-like or U-shaped to allow lateral sealing off of the contact area.
- Fig. 4a and 4b show an embodiment in which the insulating part is attached as a slider 104 directly on or on the bridge 3.
- the movable part 104 is connected in a form-fitting manner to the disconnecting block 13 so that its rotational movement (arrow depiction within the part 13) is transmitted and converted into a longitudinal sliding movement.
- the insulating member 104 When the shorting position of the bridge 3 is reached, the insulating member 104 has moved down in the figure representation, with a projecting end penetrates into the separation distance between the parts b and c and increases the separation distance.
- the insulating member 104 may be formed as a pipe or tube with a recess which is pushed completely or only partially over the bridge 3 after the contact separation immediately or delayed in time.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Emergency Protection Circuit Devices (AREA)
- Fuses (AREA)
- Thermally Actuated Switches (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/737,852 US8861157B2 (en) | 2008-08-25 | 2009-08-25 | Surge arrestor comprising at least one arrester element |
EP09782137A EP2319143B1 (de) | 2008-08-25 | 2009-08-25 | Überspannungsableiter mit mindestens einem ableitelement |
PL09782137T PL2319143T3 (pl) | 2008-08-25 | 2009-08-25 | Ochronnik przepięciowy z przynajmniej jednym elementem odprowadzającym |
CN200980133073.5A CN102132467B (zh) | 2008-08-25 | 2009-08-25 | 具有至少一个放电元件的过电压放电器 |
SI200930586T SI2319143T1 (sl) | 2008-08-25 | 2009-08-25 | Prednapetostni odvodnik z najmanj enim odvodniškim elementom |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008039626 | 2008-08-25 | ||
DE102008039626.5 | 2008-08-25 | ||
DE102009004703.4 | 2009-01-15 | ||
DE102009004703.4A DE102009004703B4 (de) | 2008-08-25 | 2009-01-15 | Überspannungsableiter mit mindestens einem Ableitelement |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010023193A1 true WO2010023193A1 (de) | 2010-03-04 |
Family
ID=41211706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/060900 WO2010023193A1 (de) | 2008-08-25 | 2009-08-25 | Überspannungsableiter mit mindestens einem ableitelement |
Country Status (7)
Country | Link |
---|---|
US (1) | US8861157B2 (de) |
EP (1) | EP2319143B1 (de) |
CN (1) | CN102132467B (de) |
DE (2) | DE102009004703B4 (de) |
PL (1) | PL2319143T3 (de) |
SI (1) | SI2319143T1 (de) |
WO (1) | WO2010023193A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012014595A1 (de) * | 2012-07-24 | 2014-01-30 | Phoenix Contact Gmbh & Co. Kg | Vorrichtung zum Schutz vor thermischer Überlastung eines zu schützenden Bauteils |
SI24213A (sl) * | 2012-10-24 | 2014-04-30 | Razvojni Center Enem Novi Materiali D.O.O. | Prenapetostni zaĺ äśitni modul |
CN103198984B (zh) | 2013-04-10 | 2015-05-27 | 四川中光防雷科技股份有限公司 | 一种高安全性电涌保护器 |
US10376181B2 (en) | 2015-02-17 | 2019-08-13 | Endochoice, Inc. | System for detecting the location of an endoscopic device during a medical procedure |
DE102016102968A1 (de) * | 2016-02-19 | 2017-08-24 | Epcos Ag | Varistor-Komponente und Verfahren zum Sichern einer Varistor-Komponente |
CN107301909B (zh) | 2016-04-14 | 2021-05-14 | 爱普科斯公司 | 变阻器组件和用于保护变阻器组件的方法 |
DE202016107504U1 (de) | 2016-06-22 | 2017-03-02 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsschutzanordnung mit mindestens einem, auf einer ersten Seite einer n-eckigen Trägerplatte angeordneten, scheibenförmigen Varistor |
DE202017000117U1 (de) | 2016-06-22 | 2017-01-23 | DEHN + SÖHNE GmbH + Co. KG. | Überspannungsschutzanordnung mit mindestens einem, auf einer ersten Seite einer n-eckigen Trägerplatte angeordneten, scheibenförmigen Varistor |
DE202017006818U1 (de) * | 2017-04-11 | 2018-07-06 | Dehn + Söhne Gmbh + Co. Kg | Abtrenn- und Umschaltvorrichtung für den Überspannungsschutz insbesondere für DC-Systeme |
DE102017112429B4 (de) * | 2017-06-06 | 2019-07-18 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzelement |
CN110024054B (zh) * | 2017-10-13 | 2021-06-29 | 东莞令特电子有限公司 | 热保护金属氧化物压敏电阻器 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005112050A1 (fr) * | 2004-04-19 | 2005-11-24 | Soule Protection Surtensions | Dispositif de protection contre les surtensions pourvu de moyens de coupure d’arc |
WO2006040418A1 (fr) * | 2004-10-08 | 2006-04-20 | Abb France | Dispositif de protection contre les surtensions pourvu de moyens de cisaillement d’arc et procede correspondant |
FR2877156A1 (fr) * | 2004-10-25 | 2006-04-28 | Soule Prot Surtensions Sa | Dispostif de protection contre les surtensions a capacite de deconnexion amelioree |
DE102006052955A1 (de) * | 2006-09-07 | 2008-03-27 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsableiter mit einem Gehäuse und mit mindestens einem Ableitelement |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE536746A (de) * | 1954-03-23 | |||
DE3734214A1 (de) | 1987-10-09 | 1989-04-20 | Dehn & Soehne | Anordnung zur abschaltung eines varistors |
AT405350B (de) | 1997-02-12 | 1999-07-26 | Felten & Guilleaume Ag Oester | Schutzschaltungsanordnung für überspannungsableiter |
US7371963B2 (en) * | 2002-07-31 | 2008-05-13 | Kyocera Corporation | Photovoltaic power generation system |
-
2009
- 2009-01-15 DE DE102009004703.4A patent/DE102009004703B4/de active Active
- 2009-01-15 DE DE202009018118U patent/DE202009018118U1/de not_active Expired - Lifetime
- 2009-08-25 EP EP09782137A patent/EP2319143B1/de active Active
- 2009-08-25 WO PCT/EP2009/060900 patent/WO2010023193A1/de active Application Filing
- 2009-08-25 CN CN200980133073.5A patent/CN102132467B/zh not_active Expired - Fee Related
- 2009-08-25 PL PL09782137T patent/PL2319143T3/pl unknown
- 2009-08-25 SI SI200930586T patent/SI2319143T1/sl unknown
- 2009-08-25 US US12/737,852 patent/US8861157B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005112050A1 (fr) * | 2004-04-19 | 2005-11-24 | Soule Protection Surtensions | Dispositif de protection contre les surtensions pourvu de moyens de coupure d’arc |
WO2006040418A1 (fr) * | 2004-10-08 | 2006-04-20 | Abb France | Dispositif de protection contre les surtensions pourvu de moyens de cisaillement d’arc et procede correspondant |
FR2877156A1 (fr) * | 2004-10-25 | 2006-04-28 | Soule Prot Surtensions Sa | Dispostif de protection contre les surtensions a capacite de deconnexion amelioree |
DE102006052955A1 (de) * | 2006-09-07 | 2008-03-27 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsableiter mit einem Gehäuse und mit mindestens einem Ableitelement |
Also Published As
Publication number | Publication date |
---|---|
CN102132467A (zh) | 2011-07-20 |
PL2319143T3 (pl) | 2013-08-30 |
EP2319143A1 (de) | 2011-05-11 |
US8861157B2 (en) | 2014-10-14 |
DE102009004703A1 (de) | 2010-04-08 |
CN102132467B (zh) | 2014-03-05 |
US20110211287A1 (en) | 2011-09-01 |
DE102009004703B4 (de) | 2014-05-28 |
EP2319143B1 (de) | 2013-03-06 |
SI2319143T1 (sl) | 2013-07-31 |
DE202009018118U1 (de) | 2011-02-10 |
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