EP1357649A1 - Trennvorrichtung - Google Patents
Trennvorrichtung Download PDFInfo
- Publication number
- EP1357649A1 EP1357649A1 EP03405217A EP03405217A EP1357649A1 EP 1357649 A1 EP1357649 A1 EP 1357649A1 EP 03405217 A EP03405217 A EP 03405217A EP 03405217 A EP03405217 A EP 03405217A EP 1357649 A1 EP1357649 A1 EP 1357649A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- propellant
- current
- interior
- arc
- 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.)
- Granted
Links
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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
- H01T1/12—Means structurally associated with spark gap for recording operation thereof
-
- 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
Definitions
- the invention is based on a device for separating a current-carrying electrical conductor according to the preamble of claim 1.
- This device contains a housing and two out of the housing Power connections. Inside the housing are the two power connections provided electrically conductive connecting conductor section and a Blowing agent which is above a predefinable current-dependent limit separating the electrical conductor. The separation takes place in general depending on the shape, height and duration of an im electrical conductor of current. As a means of disconnecting the electrical Typically, fuse wires, spring mechanisms or explosive-filled primers used.
- the electrical conductor provides in general a connection between a surge arrester and earth or High-voltage potential. Accordingly, the surge arrester by disconnecting the conductor from earth or high voltage potential separated.
- the invention takes on a prior art Separating devices reference, as described for example in US 5,434,550 A. is.
- One of the separation devices described is used to separate one Surge arrester from earth potential and has an insulating housing, from which two power connections are led out. Are inside the case one cartridge filled with explosive and two in parallel between the two Switched current paths provided. A low impedance the both current paths contains a coil-shaped fuse wire, on the other hand, a high-resistance design of both current paths, one between two Rings arranged spark gap. In normal operation of the arrester only flows a very low and only a permissible heating of the separating device causing leakage current through the fuse wire.
- the network flows, for example as a result of a switching operation or as a result of lightning briefly a high current through the separator. This current commutates with arcing in the current path containing the spark gap. Lasts the overvoltage due to a faulty condition of the network, however, is relative long, the safety wire is melted and it forms in the An arc from inside the housing activates the cartridge. This will the housing explodes and becomes the surge arrester for earth potential separated. The same effect is achieved if due to a faulty one State of the surge arrester in the safety wire is too high a leakage current to be led.
- a separation device of the type mentioned for one Surge arrester is also described in DE 100 30 669 A1.
- the device is a gas generator based on an airbag in a blind bore a conductor section of a leakage current path.
- a The airbag is given a long-lasting fault current by an electrical signal ignited, which in an inductive converter through which the fault current flows is produced.
- Such a device is comparatively complex.
- the invention solves the problem Specify separating device of the type mentioned, which is characterized by a sufficient response characteristics to solve most protection tasks distinguished and yet manufactured, transported and assembled completely safely can be.
- the blowing agent is free of ignitable Substances kept and is selected such that the necessary for the separation Compressed gas quantity by the current work of the fault current thermally from the Propellant can be released.
- the propellant is heated and by the electricity work thermally decomposed by supplying heat until the desired amount of compressed gas is present in the housing.
- the compressed gas is through an endothermic and therefore good process to be controlled.
- the separation device according to the invention can therefore be manufactured, distributed, assembled and serviced without in this case, those for handling ignitable substances, especially explosives, prescribed precautionary measures are to be observed. This will not only an otherwise existing hazard potential during manufacture, transport, Installation and maintenance avoided, but there are costs and time at the same time saved the use of explosives for the sake of a Reduction of security risks and compliance with security regulations attack.
- the blowing agent has one due to evaporation gas-developing additive, which is advantageous Liquid, such as water in particular, but possibly also an alcohol.
- This liquid can be very convenient and in a comparatively large amount of an adsorber. For reasons of economy and around To be able to operate the separating device reliably and safely, it is recommended to provide water as a liquid.
- the adsorber then advantageously has capillary and / or Crystal structure and can then in a dielectrically harmless manner store large amounts of water.
- Substances which have a silicate, aluminate and / or aluminosilicate structure, and such as talc (soapstone), zeolite and / or moist earth (clay, Sand) in cavities, such as capillaries or intermediate layers, in physical bound form contain large amounts of water.
- the water can be chemically incorporated into the blowing agent in the form of water of crystallization his.
- Particularly preferred examples of this are crystallized hydroxides, such as for example hydrargillite.
- a blowing agent used which contains a gas-forming material that is above a Limit temperature is mainly decomposed endothermically.
- a gas-forming material that is above a Limit temperature
- PMMA Polymethyl methacrylates
- PUR polyurethanes
- silicones silicone gels
- Silicone oils mineral oils or organic oils or fats.
- the propellant should expediently respond inside the housing be arranged. If the separation device with a possibly relatively large Respond delay time, the separator should one to the conductor section spark gap connected in parallel and arranged inside the housing Recording of an arc formed when the electrical conductor is disconnected should have one of the two electrodes of the spark gap as a hollow electrode and the interior of the hollow electrode should then be the blowing agent take up.
- a well reproducible response characteristic is achieved if the hollow electrode in a base of the arc receiving Section has a wall thickness which is above a predetermined value the arc work the gas-forming effect of the arc on the Blowing agent enables.
- a particularly effective arrangement of the propellant is achieved when the Conductor section designed like a coil is integrated into the housing wall, since the exposed interior of the housing is then filled with propellant can and only take up the parallel spark plug got to.
- Figures 1 to 4 each show a top view of one of four Separating devices according to the invention, in each of which the front of a axially symmetrical housing each after execution of a Axial cut was removed.
- the Separating devices shown by way of example in FIGS. 1 to 4 each have essentially in an axially symmetrical arrangement two axially from each other spaced-apart power connections 1, 2 and one of the two power connections fixing housing 3 made of an insulating material, such as porcelain or a thermoset or thermoplastic polymer.
- the housing can, for example Potting the insulating material, be made in one piece, but can also be made of two or more parts are made.
- the housing 3 has a cylindrical shape Interior 4, the two end faces of each of a surface 5 or 6 each one of the two power connections 1 and 2 are formed and its outer surface is formed by the housing 3.
- the two power connections form one low-resistance current path with the aid of a between the two surfaces 5, 6 switched conductor section 7 electrically connected to each other.
- this conductor section has an interior 4 arranged ohmic resistor 8, in the embodiments according to Fig.2 an inductor 9 arranged in the interior 4, in the embodiment according to FIG 3 shows a fuse element 10 arranged in the interior and at Embodiment according to Figure 4 integrated into the housing 3 by pouring Inductance 11.
- the embodiments according to FIGS. 1, 2 and 4 also have one high-resistance current path with an arc 12 made, axially symmetrical spark gap.
- An electrode of the Spark gap is formed by surface 5, another electrode 13 by one Tip of a pin inserted into the power connection 2 on the surface 6.
- the high-resistance current path lies parallel to that through the conductor section 7 represented low-resistance current path.
- FIG. 1 there is explosive-free propellant, typically moist earth, in the hollow electrode 13.
- a receiving a base point of the arc 12 Section of the electrode 13 has a wall thickness which is above a specified value of the arc work the gas-forming effect of the Arc on the blowing agent allows.
- Arcing With through transitory processes, such as especially by switching operations or lightning strikes, in a Overvoltage resulting from the network containing the surge conductor is sufficient Arcing generally does not work to activate the propellant.
- an inductance 9 is used in the conductor section 7. This is the commutation the current from the low-impedance current path into the one containing the spark gap higher-impedance current path when queuing through a transitory Surges caused by short-term current surges are facilitated.
- the inductance is advantageously designed as a fuse wire. Low fault currents can thus be interrupted by melting the wire of the inductor 9 become. An arc formed here is particularly effective with immediate provided in the interior 4 and suppressing blowing agent acting as an extinguishing agent.
- the blowing agent can all or only a part of the Fill in interior 4. For example, it can be used as an envelope on the Fusible conductor 10 can be applied. By suitable dimensioning of the blowing agent in this separating device, the housing 3 can only burst open can be achieved when a formed after melting the wire 10 Arc does a large enough job.
Landscapes
- Fuses (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Centrifugal Separators (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
Description
- 1, 2
- Stromanschlüsse
- 3
- Gehäuse
- 4
- Innenraum
- 5, 6
- Flächen
- 7
- Leiterabschnitt
- 8
- Widerstand
- 9, 11
- Induktivitäten
- 10
- Schmelzleiter
- 12
- Lichtbogen
- 13
- Elektrode
Claims (12)
- Vorrichtung zum Auftrennen eines stromführenden elektrischen Leiters mit einem Gehäuse (3), zwei aus dem Gehäuse (3) geführten Stromanschlüssen (1, 2), einem die beiden Stromanschlüsse (1, 2) im Gehäuseinneren (4) elektrisch leitend miteinander verbindenden Leiterabschnitt (7) und mit einem im Gehäuseinneren (4) angeordneten Treibmittel zur Erzeugung von Druckgas in einer Menge, die ausreicht, um beim Auftreten eines Fehlerstroms den Leiterabschnitt (7) aufzutrennen, dadurch gekennzeichnet, dass das Treibmittel frei von zündbaren Stoffen gehalten und derart ausgewählt ist, dass die zur Auftrennung erforderliche Druckgasmenge durch die Stromarbeit des Fehlerstroms thermisch aus dem Treibmittel freisetzbar ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Treibmittel einen infolge Verdampfung gasentwickelnden Zusatz aufweist.
- Vorrichtung nach einem der Anspruch 2, dadurch gekennzeichnet, dass der Zusatz eine Flüssigkeit, insbesondere Wasser oder ein Alkohol, ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Treibmittel einen die Flüssigkeit aufnehmenden Adsorber aufweist.
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass als Flüssigkeit Wasser vorgesehen ist, und dass der Adsorber Kapillar- und/oder Kristallstruktur aufweist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Adsorber Silicat-, Aluminat- und/oder Aluminosilicatstruktur aufweist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Absorber Talk, Zeolith und/oder Erde enthält.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Treibmittel ein infolge chemischer Zersetzung gasbildendes Material aufweist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Material einen Kunststoff, Fett und/oder Öl, insbesondere PMMA, PUR, Silicon, Silicongel, Siliconöl, Mineralöl oder ein organisches Öl oder Fett, enthält.
- Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Treibmittel im Gehäuseinneren (4) angeordnet ist oder im Innenraum einer hohl ausgebildeten Elektrode (13) einer im Gehäuseinneren (4) vorgesehenen und parallel zum Leiterabschnitt (7) geschalteten Funkenstrecke.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass bei Ausbildung der Vorrichtung mit einer Hohlelektrode (13) ein einen Fusspunkt eines Lichtbogens (12) aufnehmender Abschnitt der Hohlelektrode (13) eine Wandstärke aufweist, welche oberhalb eines vorgegebenen Grenzwertes der Lichtbogenarbeit die gasbildende Einwirkung des Lichtbogens (10) auf das Treibmittel ermöglicht.
- Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass der nach Art einer Spule ausgebildete Leiterabschnitt (7) in die Wand des Gehäuses (3) integriert ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03405217A EP1357649B1 (de) | 2002-04-25 | 2003-04-01 | Trennvorrichtung |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02405342 | 2002-04-25 | ||
EP02405342 | 2002-04-25 | ||
EP03405217A EP1357649B1 (de) | 2002-04-25 | 2003-04-01 | Trennvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1357649A1 true EP1357649A1 (de) | 2003-10-29 |
EP1357649B1 EP1357649B1 (de) | 2005-11-09 |
Family
ID=29266031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03405217A Expired - Lifetime EP1357649B1 (de) | 2002-04-25 | 2003-04-01 | Trennvorrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US7289309B2 (de) |
EP (1) | EP1357649B1 (de) |
JP (1) | JP4138564B2 (de) |
CN (1) | CN100423391C (de) |
AT (1) | ATE309635T1 (de) |
DE (1) | DE50301587D1 (de) |
ES (1) | ES2252645T3 (de) |
RU (1) | RU2310958C2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9793701B2 (en) | 2012-08-16 | 2017-10-17 | Siemens Aktiengesellschaft | Surge arrester |
DE102019207465A1 (de) * | 2019-05-22 | 2020-11-26 | Siemens Aktiengesellschaft | Abtrennvorrichtung für einen Überspannungsableiter und Anordnung |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060287934A1 (en) * | 2005-06-20 | 2006-12-21 | Rowe Marshall R Iii | Method of and system for monitoring real time market data |
DE102011053414B4 (de) * | 2011-09-08 | 2016-11-17 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzgerät mit einer thermischen Abtrennvorrichtung |
CN106796856B (zh) * | 2014-10-03 | 2020-03-06 | 管理科学有限公司 | 防止电气导管中电弧故障的方法、系统和装置 |
EP3227902B1 (de) | 2014-12-02 | 2021-08-11 | Eaton Intelligent Power Limited | Stromsicherung und herstellungsverfahren mit verbesserter lichtbogenabschwächungs- und wärmeverwaltung |
CN107564767B (zh) * | 2017-09-20 | 2019-04-12 | 南京理工大学 | 一种可实现多次开关动作的金属丝阵开关 |
CN110853994B (zh) * | 2019-11-28 | 2021-12-28 | 浦江利浩电子科技有限公司 | 一种可重复使用的连断式熔断器 |
US20220077673A1 (en) * | 2020-09-09 | 2022-03-10 | Abb Power Grids Switzerland Ag | Chargeless interrupter device for surge arrester |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01159984A (ja) * | 1987-12-17 | 1989-06-22 | Mitsubishi Electric Corp | 避雷器切り離し装置 |
JPH03165479A (ja) * | 1989-11-22 | 1991-07-17 | Mitsubishi Electric Corp | 避雷器の故障動作装置 |
US5434550A (en) * | 1994-04-07 | 1995-07-18 | Hubbell Incorporated | Arrester disconnector |
DE10030669A1 (de) * | 2000-06-23 | 2002-01-10 | Siemens Ag | Vorrichtung zum Erfassen eines Fehlers in der Ableitstrombahn eines Hochspannungs-Überspannungsableiters |
DE10047503A1 (de) * | 2000-09-21 | 2002-04-18 | Disa Tech Technologie Entwickl | Sorptionsreaktor |
Family Cites Families (16)
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US2757261A (en) * | 1951-07-19 | 1956-07-31 | Westinghouse Electric Corp | Circuit interrupters |
US2694123A (en) * | 1953-09-21 | 1954-11-09 | Gen Electric | Gas blast fuse |
US3268690A (en) * | 1963-10-11 | 1966-08-23 | Westinghouse Electric Corp | Fuse constructions including a gas filled reservoir |
US3265838A (en) * | 1963-11-14 | 1966-08-09 | Westinghouse Electric Corp | Gas propelled fuse link |
US3305656A (en) * | 1963-12-26 | 1967-02-21 | Gen Electric | Electrical insulation containing a molecular sieve having adsorbed perhalogenated fluid |
US3227642A (en) * | 1964-02-26 | 1966-01-04 | Jerome H Lemelson | Fluid processing apparatus and method |
US3909570A (en) * | 1973-10-11 | 1975-09-30 | S & C Electric Co | High voltage circuit interrupter switch arrangement |
US4250365A (en) * | 1978-03-22 | 1981-02-10 | Electric Power Research Institute, Inc. | Current interrupter for fault current limiter and method |
US4342978A (en) * | 1979-03-19 | 1982-08-03 | S&C Electric Company | Explosively-actuated switch and current limiting, high voltage fuse using same |
US4434336A (en) * | 1981-08-12 | 1984-02-28 | Brown Boveri Electric, Inc. | Liquid SF6 interrupter with arc energy driven piston and contact |
US4566401A (en) * | 1983-04-04 | 1986-01-28 | Kinki Denki Co., Ltd. | Dynamic current interruption-type indicators and method therefor |
US4663692A (en) * | 1985-06-27 | 1987-05-05 | Westinghouse Electric Corp. | Electrical surge arrester and disconnector |
US5113167A (en) * | 1991-02-15 | 1992-05-12 | Hubbell Incorporated | Lightning arrester isolator |
US5471185A (en) * | 1994-12-06 | 1995-11-28 | Eaton Corporation | Electrical circuit protection devices comprising conductive liquid compositions |
WO1997043812A1 (de) * | 1996-05-15 | 1997-11-20 | Friwo Gerätebau Gmbh | Vorrichtung zum schutz einer elektronischen schaltung |
US5952910A (en) * | 1997-12-04 | 1999-09-14 | Hubbell Incorporated | Isolator device for arrester |
-
2003
- 2003-04-01 AT AT03405217T patent/ATE309635T1/de not_active IP Right Cessation
- 2003-04-01 ES ES03405217T patent/ES2252645T3/es not_active Expired - Lifetime
- 2003-04-01 EP EP03405217A patent/EP1357649B1/de not_active Expired - Lifetime
- 2003-04-01 DE DE50301587T patent/DE50301587D1/de not_active Expired - Lifetime
- 2003-04-18 JP JP2003113727A patent/JP4138564B2/ja not_active Expired - Fee Related
- 2003-04-24 RU RU2003112058/09A patent/RU2310958C2/ru not_active IP Right Cessation
- 2003-04-25 US US10/422,939 patent/US7289309B2/en not_active Expired - Lifetime
- 2003-04-25 CN CNB031224245A patent/CN100423391C/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01159984A (ja) * | 1987-12-17 | 1989-06-22 | Mitsubishi Electric Corp | 避雷器切り離し装置 |
JPH03165479A (ja) * | 1989-11-22 | 1991-07-17 | Mitsubishi Electric Corp | 避雷器の故障動作装置 |
US5434550A (en) * | 1994-04-07 | 1995-07-18 | Hubbell Incorporated | Arrester disconnector |
DE10030669A1 (de) * | 2000-06-23 | 2002-01-10 | Siemens Ag | Vorrichtung zum Erfassen eines Fehlers in der Ableitstrombahn eines Hochspannungs-Überspannungsableiters |
DE10047503A1 (de) * | 2000-09-21 | 2002-04-18 | Disa Tech Technologie Entwickl | Sorptionsreaktor |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 013, no. 429 (E - 823) 25 September 1989 (1989-09-25) * |
PATENT ABSTRACTS OF JAPAN vol. 015, no. 405 (E - 1122) 16 October 1991 (1991-10-16) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9793701B2 (en) | 2012-08-16 | 2017-10-17 | Siemens Aktiengesellschaft | Surge arrester |
DE102019207465A1 (de) * | 2019-05-22 | 2020-11-26 | Siemens Aktiengesellschaft | Abtrennvorrichtung für einen Überspannungsableiter und Anordnung |
Also Published As
Publication number | Publication date |
---|---|
JP2003332019A (ja) | 2003-11-21 |
ES2252645T3 (es) | 2006-05-16 |
CN1453912A (zh) | 2003-11-05 |
EP1357649B1 (de) | 2005-11-09 |
DE50301587D1 (de) | 2005-12-15 |
US20030210508A1 (en) | 2003-11-13 |
RU2310958C2 (ru) | 2007-11-20 |
US7289309B2 (en) | 2007-10-30 |
JP4138564B2 (ja) | 2008-08-27 |
ATE309635T1 (de) | 2005-11-15 |
CN100423391C (zh) | 2008-10-01 |
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