EP0750788B1 - Schalter zur strombegrenzung - Google Patents
Schalter zur strombegrenzung Download PDFInfo
- Publication number
- EP0750788B1 EP0750788B1 EP94921596A EP94921596A EP0750788B1 EP 0750788 B1 EP0750788 B1 EP 0750788B1 EP 94921596 A EP94921596 A EP 94921596A EP 94921596 A EP94921596 A EP 94921596A EP 0750788 B1 EP0750788 B1 EP 0750788B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch according
- current
- switch
- contacts
- moving contact
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H2077/025—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with pneumatic means, e.g. by arc pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/127—Automatic release mechanisms with or without manual release using piezoelectric, electrostrictive or magnetostrictive trip units
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/04—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrothermal opening
Definitions
- the invention relates to a switch for current limitation, with power connections and contacts, of which the one is a fixed contact and the other is a moving contact, and with an associated mechanical switching energy Drive for opening the moving contact when exceeded a predetermined electrical current.
- WO-A-91/12643 and EP-A-0 487 920 are current-limiting Arrangements known as ballasts for switches, the specifically the so-called PTC effect (positive temperature coefficient).
- PTC effect positive temperature coefficient
- High current resistors are used, which essentially consist of a with soot-filled polyethylene layer, which the Has PTC effect.
- the polymer resistance body with its base areas be connected to an electrode, wherein a printing device is present, which is a pressure perpendicular to the Electrodes and the bases of the resistance body of the conductive polymer layer.
- the object of the invention is a switch for Current limit to indicate the according to another principle is working.
- the task is according to the invention with a switch of the beginning mentioned type in that the drive a is such a thermoelectric drive, in which the mechanical Switching energy through high-current discharges on one Resistance material between fixed contact and moving contact and a resulting pressure wave is produced.
- the resistance material can be made of graphite Plastic, for example based on polyethylene, or from a conductive, non-organic material, such as polycrystalline silicon carbide, consist. In both cases, however, a chemical Decomposition of the material to build up the pressure wave arise.
- the contacts are closed Insulated housing arranged and between the contacts disc-shaped resistance body arranged.
- the resistance body can also be through a variety of carbon fibers be formed into a foil or felt-like Brought consistency.
- the invention the mechanical required for contact separation Switching energy applied electrothermally.
- a high-current discharge occurs first an enclosed gas volume.
- the resulting pressure wave acts on a movable piston and performs him the mechanical contact opening work.
- the switch according to the invention is used in power distribution networks used in the low voltage range. It must in Malfunction, especially in the event of short circuits, on parts of the network parent branches can be switched off. To damage the Limit the location of the fault as well as in the area of the network or to avoid switching off as soon as possible, especially within the first affected Half wave.
- a limitation of the Short-circuit current required if the shutdown is not recognized quickly enough or undertaken by suitable measures can be.
- the limitation of the short-circuit current is continue to limit the amplitudes at shutdown generated voltage peaks due to the inductive Share of load in the network and at the consumer and reduced thus the risk of further damage due to insulation faults, caused by such surges can. Especially in building installations, but also in other cases, the requirements for the required increase Components that therefore have a high selectivity have to.
- Such a switch according to the invention is closed Lockable condition and by a suitable Lift mechanism to a response threshold which is above the the maximum current to be expected in the high-load range is adjustable.
- the contact resistance is in the locked state so low that the nominal current losses are negligible are.
- the limiter's self-response threshold lies in the magnitude of the prospective short-circuit current. in the unlocked state, the contact resistance and rise thus the energy turnover in the area of the switch contacts. Alike the self-response threshold drops to one Value in the nominal current range.
- the unlocking can advantageously be carried out by an electronic Short-circuit early detection can be triggered.
- This behavior is advantageously supported in that a second Lift mechanism is used, which is tensioned in the locked state is and can be constructed so that it is unlocked Condition for mechanical opening of the moving electrode of the Limiter leads.
- this second energy store becomes automatic curious; excited.
- the current limiter according to the invention even able to cut the current not just to limit, but to completely interrupt, i.e. so to work as an opening switch.
- a second locking unit is provided, the working as a quick switch Limiter locked when open. The limiter is prevented from doing so after a successful power cut automatically in the closed state again to pass over. A real bistable behavior is thus achieved.
- a passive Circuit with RLC elements can be achieved that in the case of Separation of the current during the current half-wave none harmful surge peaks are generated. You can do this also voltage-limiting elements such as zener diodes, varistors, Surge arrester or the like.
- the figure is an insulating housing with 1, the for example, a rotationally symmetrical hollow cylinder forms an axis I.
- the hollow cylindrical insulating material housing 1 is completed by a flange 6.
- a fixed contact 2 which has a power connection 2a in the axial direction.
- a moving contact 3 whose power connection 3a also in the axial direction I runs, longitudinally movable into the insulating housing 1.
- a disk-shaped resistance body 4 is arranged in such a way that he has no space on the surface of the fixed contact 2 is present.
- the outer contour of the resistance body 4 is precisely fitted into the insulating housing 1.
- a separating surface 8 which characterizes a variable space.
- an expansion volume 9 all around.
- the moving contact 3 is through with its power connection 3a a bellows 5 on the interface 8 of the resistance body 4 pressed.
- the spring body 5 defines one mechanical preload, when overcome the moving contact 3 is moved in the horizontal direction.
- the postponement can thereby by a rotating in the insulating housing 1 Ring 10 are limited, with appropriate Dimensioning of an annular extension part 3b on Moving contact 3 on the one hand and the circumferential ring 10 on the other can specify a suitable stroke distance d.
- the power connection 3a points in the figure on its outer End a notch 7a which engage an associated pawl 7b can. This is a means of locking the moving contact realized in the open state.
- the switch described can be used in conventional power distribution networks be switched on.
- the current overflows the power connection 2a, the fixed contact 2, the resistance body 4 on the moving contact 3 and from there via the power connection 3a further on the net.
- the high-current heats up Discharge via the fixed contact 2 and the adjacent contact disk-shaped resistance bodies initially flat the enclosed gas volume.
- the resulting The pressure wave moves the moving contact 3 as far as it will go, locking over the pawl 7a and notch 7b done in the open state.
- the response threshold of the monostable shown in Figure 1 Switch is so by the pressure of the spring 5th fixed. So the switch is self-triggering, however not controllable.
- the contact pressure spring 5 is attached to an axially movable part 6b of the housing cover 6 with the Share 6a and 6b.
- Part 6b acting as a spring abutment is in position a via a locking mechanism 11a and 11b locked so that the spring 5 is biased and the pressure force necessary for the closed state the moving electrode 3 is generated on the resistance body.
- the opening process provided spring 12 biased.
- unlocking the Latching 11 by an actuator 13 becomes the spring abutment 6b of the springs 5 and 12 in the axial direction of the housing 1 accelerated away, so that the pressure force within a very short time between moving electrode 3 and resistance body 4 drops to very low values. This increases the Contact resistance very strong and the response threshold of electrothermal drive drops to a value within the nominal current range of the switch.
- the electrothermal drive triggers off and the switch limits and interrupts or opens the electricity within a very short time, i.e. far below the prospective short-circuit current.
- Mechanism 3a and 7a and 7b lock the state Moving electrode 3 and thereby prevents an unwanted new Closing the switch.
- the actuator 13 is, for example controlled by electronic short-circuit detection and triggered.
- the Opening spring 12 directly on the moving electrode 3 and supported thus the opening through direct mechanical acceleration. This will further accelerate the opening process and achieved a stronger current limitation. The same effect can be achieved if the opening spring 12 not on the electrode 3, but on the guide element 3b or mechanically with the moving electrode 3 coupled power supply 3a attaches.
- Figure 3 is the energy store 5 by a piezoelectric actuator 14 replaced, which simultaneously with the unlocking actuator 13 is controlled. The actuator 14 decreases when activated its length, so that the contact pressure force is already reduced is before the moving electrode 3 from the opening force accumulator is moved.
- the piezoelectric Actuator 14 arranged parallel to the opening spring 12 and extended itself when activated. This will make the contact pressure force the pressure spring 5 briefly overcompensated and the Spring action supported in the initial phase of the opening process.
- Curve 51 describes the time course of the prospective short-circuit current.
- Curve 52 describes the current through the uncontrolled limiting element of conventional design, the value A indicating the fixed response threshold.
- Curve 53 describes the current through the new bistable limiter or rapid switch, the response threshold B of the locked limiter being at or even above the prospective short-circuit current maximum.
- the threshold C of the limiter is unlocked call within the rated current range I, so that a very early initiation can occur at hazardous current values. It is triggered by active unlocking via the short-circuit early detection electronics and the unlocking actuator 13.
- the short-circuit early detection electronics detect short circuits within a few microseconds after zero current. Due to the small moving masses in the actuator 13 and in the locking mechanism 11a and 11b becomes very early Current limit and opening in the switch reached, so that currents actually occurring to innocuous values within of the nominal current range.
- the selectivity is determined by the threshold value setting of the short-circuit early detection reached and is therefore for a single "BISTABILER" electromechanical switching element LIMITER "adjustable within wide limits.
- the resistance body 4 can consist of conductive plastic, for example, the well-known made electrically conductive Polyethylene.
- conductive plastic for example, the well-known made electrically conductive Polyethylene.
- graphite is used for filling in question.
- the resistance body 4 can also be made of graphite fibers be formed by appropriate processing brought into a foil or felt-like consistency were.
- a defined, non-organic one can also be used Material instead of the previously used conductive made organic material, such as soot filled Polyethylene.
- conductive made organic material such as soot filled Polyethylene.
- semiconductor materials such as in particular polycrystalline silicon carbide, in question.
- the spatial shape can be of the rotational symmetry deviate and for example rectangular with areal resistance bodies are present. It can several resistance bodies can also be connected in series. Corresponding means for ventilation of the Housing interior of the insulating housing 1 may be provided.
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Thermally Actuated Switches (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
- Figur 1
- einen elektrothermischen Schalter für Niederspannungsanwendungen,
- Figuren
- 2 bis 4 drei alternative Weiterbildungen eines solchen Schalters zur Auslegung bistabiler Limiter und
- Figur 5
- ein Strom-Zeitdiagramm zur Verdeutlichung des vorteilhaften Schaltverhaltens.
Claims (21)
- Schalter zur Strombegrenzung, mit Stromanschlüssen (2a, 3a) und Kontakten(2, 3), von denen der eine ein Festkontakt(2) und der andere ein Bewegkontakt (3) ist, und mit einem zugehörigen, mechanische Schaltenergie bereitstellenden Antrieb zum Öffnen des Bewegkontaktes (3) bei Überschreiten einer vorgegebenen elektrischen Stromstärke , dadurch gekennzeichnet, daß der Antrieb ein solcher thermoelektrischer Antrieb ist, bei dem die mechanische Schaltenergie durch stromstarke Entladungen an einem Widerstandsmaterial (4) zwischen Festkontakt (2) und Bewegkontakt (3) und eine dadurch entstehende Druckwelle erzeugt wird.
- Schalter nach Anspruch 2, dadurch gekennzeichnet, daß das Widerstandsmaterial (4) aus graphithaltigem Kunststoff, beispielsweise auf der Basis von Polyethylen, besteht.
- Schalter nach Anspruch 1, dadurch gekennzeichnet, daß das Widerstandsmaterial (4) aus einem gut leitenden, nichtorganischen Werkstoff, beispielsweise aus polykristallinem Siliciumcarbid, besteht.
- Schalter nach Anspruch 1, dadurch gekennzeichnet, daß die Kontakte (2, 3) in einem abgeschlossenen Isolierstoffgehäuse (1) angeordnet sind und daß zwischen den Kontakten (2, 3) ein scheibenförmiger Körper (4)aus dem Widerstandsmaterial vorhanden ist.
- Schalter nach Anspruch 4, dadurch gekennzeichnet, daß zwischen Widerstandskörper (4) und Bewegkontakt (3) im Isolierstoffgehäuse (1) ein Expansionsvolumen (9) vorhanden ist.
- Schalter nach Anspruch 4, dadurch gekennzeichnet, daß der Widerstandskörper (4) durch eine Vielzahl von Kohlenstoffasern gebildet ist, die in eine folien- oder filzartige Konsistenz gebracht sind.
- Schalter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Isolierstoffgehäuse (1), Kontakte (2, 3) und Widerstandskörper (4) jeweils einen rotationssymmetrischem Querschnitt haben.
- Schalter nach Anspruch 6, dadurch gekennzeichnet, daß Isolierstoffgehäuse (1), Kontakte (2, 3) und Widerstandskörper rotationssymmetrisch und kolinear zu den Stromanschlüssen (2a, 3a) angeordnet sind.
- Schalter nach einem der vorhergehenden Ansprüche, gekennzeichnet durch Mittel (5) zur Einstellung der Federkraft des Bewegkontaktes (3).
- Schalter nach einem der vorhergehenden Ansprüche, gekennzeichnet durch Mittel (5) zur Hubbegrenzung und Arretierung des Bewegkontaktes.
- Schalter nach einem der vorhergehenden Ansprüche, gekennzeichnet durch Mittel zur Belüftung des Gehäuseinneren.
- Schalter nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine bistabile Auslegung.
- Schalter nach Anspruch 12, gekennzeichnet durch Mittel (6b, 11a, 11b) zur Verriegelung des Schalters im geschlossenen Zustand.
- Schalter nach Anspruch 13, dadurch gekennzeichnet, daß den Mitteln (6b, 11a, 11b) zur Verriegelung ein Kraftspeicher (5) zugeordnet ist, der auf eine Stromansprechschwelle einstellbar ist, welche über den im Hochlastbereich zu erwartenden Strömen liegt.
- Schalter nach Anspruch 14, dadurch gekennzeichnet, daß der Kraftspeicher eine Andruckfeder (5) ist.
- Schalter nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, daß daß die Entriegelung durch eine elektronische Kurzschlußfrüherkennung auslösbar ist.
- Schalter nach Anspruch 16, dadurch gekennzeichnet, daß den Mitteln zur Entriegelung ein zweiter Kraftspeicher (12) zugeordnet ist.
- Schalter nach Anspruch 17, dadurch gekennzeichnet, daß zur Entriegelung Aktoren (13, 14) vorhanden sind.
- Schalter nach einem der Ansprüche 12 bis 18, dadurch gekennzeichnet, daß die Aktoren Piezoaktoren (14) sind.
- Schalter nach einem der Ansprüche 12 bis 19, gekennzeichnet durch eine passive Beschaltung mit RLC-Gliedern.
- Schalter nach einem der Ansprüche 12 bis 20, gekennzeichnet durch eine Beschaltung mit spannungsbegrenzenden Elementen, beispielsweise Zenerdiode, Varistor, Überspannungsableiter od. dgl..
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934325030 DE4325030A1 (de) | 1993-07-26 | 1993-07-26 | Schalter zur Strombegrenzung |
DE4325030 | 1993-07-26 | ||
DE4425330 | 1994-07-18 | ||
DE4425330A DE4425330A1 (de) | 1993-07-26 | 1994-07-18 | Schalter zur Strombegrenzung |
PCT/DE1994/000862 WO1995003619A1 (de) | 1993-07-26 | 1994-07-25 | Schalter zur strombegrenzung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0750788A1 EP0750788A1 (de) | 1997-01-02 |
EP0750788B1 true EP0750788B1 (de) | 1998-03-25 |
Family
ID=25928039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94921596A Expired - Lifetime EP0750788B1 (de) | 1993-07-26 | 1994-07-25 | Schalter zur strombegrenzung |
Country Status (5)
Country | Link |
---|---|
US (1) | US5859579A (de) |
EP (1) | EP0750788B1 (de) |
JP (1) | JP3636461B2 (de) |
DE (2) | DE4425330A1 (de) |
WO (1) | WO1995003619A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4446045A1 (de) * | 1994-12-22 | 1996-06-27 | Siemens Ag | Schalter zur Strombegrenzung |
DE19912713A1 (de) * | 1999-03-20 | 2000-09-21 | Abb Research Ltd | Stromleitersperreinrichtung |
US8155096B1 (en) | 2000-12-01 | 2012-04-10 | Ipr Licensing Inc. | Antenna control system and method |
DE102004036279A1 (de) * | 2004-07-27 | 2006-03-23 | Siemens Ag | Schaltgerät für Niederspannungsanwendungen |
KR100697917B1 (ko) * | 2005-01-12 | 2007-03-20 | 엘에스전선 주식회사 | Ptc 한류기 |
FR2884962A1 (fr) * | 2005-04-22 | 2006-10-27 | Norbert Roger Beyrard | Contacteur disjoncteur a ouverture par declenchement a l'aide d'un actuateur piezo electrique. |
DE202011110339U1 (de) * | 2011-07-29 | 2013-08-29 | Ceramtec Gmbh | Elektromagnetisches Relais |
TW201511058A (zh) * | 2013-09-03 | 2015-03-16 | Chuan-Sheng Wang | 過熱破壞式安全構造及過熱破壞式安全插座與插頭 |
EP3061130B1 (de) * | 2013-12-17 | 2020-11-04 | Siemens Aktiengesellschaft | Elektronisches schutzmodul für einen hvdc-umformer |
US9627821B1 (en) * | 2016-07-27 | 2017-04-18 | Atom Technology Inc. | Power connector having a transparent observation portion to view the status of a contact limiting member |
US20180286617A1 (en) * | 2017-03-28 | 2018-10-04 | Management Sciences, Inc. | Method, System, and Apparatus to Prevent Electrical or Thermal-Based Hazards in Conduits |
CN109959050A (zh) * | 2017-12-22 | 2019-07-02 | 北京绿能嘉业新能源有限公司 | 一种过热保护电暖坑板 |
CN108962702A (zh) * | 2018-08-14 | 2018-12-07 | 李涵 | 一种调压式熔断器 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3356808A (en) * | 1966-02-28 | 1967-12-05 | Westinghouse Electric Corp | Circuit-interrupting devices having pressure-operated contacts |
US3743993A (en) * | 1972-02-02 | 1973-07-03 | Gen Electric | Thermal overload protective device |
US3848213A (en) * | 1973-10-15 | 1974-11-12 | Therm O Disc Inc | Time delay relay |
CH574676A5 (de) * | 1974-08-29 | 1976-04-15 | Bbc Brown Boveri & Cie | |
GB2042265B (en) * | 1979-02-15 | 1983-02-16 | Standard Telephones Cables Ltd | Electrical overload cut-out device |
US4419650A (en) * | 1979-08-23 | 1983-12-06 | Georgina Chrystall Hirtle | Liquid contact relay incorporating gas-containing finely reticular solid motor element for moving conductive liquid |
IT1148325B (it) * | 1981-06-09 | 1986-12-03 | Ranco Inc | Complesso ad interruttore termostatico con dispositivo di abbassamento di temperatura |
US4481498A (en) * | 1982-02-17 | 1984-11-06 | Raychem Corporation | PTC Circuit protection device |
US4549161A (en) * | 1982-02-17 | 1985-10-22 | Raychem Corporation | PTC Circuit protection device |
US4550301A (en) * | 1982-02-17 | 1985-10-29 | Raychem Corporation | PTC Circuit protection device |
US4542365A (en) * | 1982-02-17 | 1985-09-17 | Raychem Corporation | PTC Circuit protection device |
DE3231136C2 (de) * | 1982-08-21 | 1984-08-23 | Limitor AG, 8022 Zürich | Bimetallschutzschalter |
JPS60262303A (ja) * | 1984-06-11 | 1985-12-25 | 株式会社東芝 | Ptcセラミツク組成物 |
SE465524B (sv) * | 1990-02-08 | 1991-09-23 | Asea Brown Boveri | Anordning foer oeverlast- och kortslutningsskydd i elektriska anlaeggningar |
US5382938A (en) * | 1990-10-30 | 1995-01-17 | Asea Brown Boveri Ab | PTC element |
-
1994
- 1994-07-18 DE DE4425330A patent/DE4425330A1/de not_active Ceased
- 1994-07-25 DE DE59405547T patent/DE59405547D1/de not_active Expired - Fee Related
- 1994-07-25 WO PCT/DE1994/000862 patent/WO1995003619A1/de active IP Right Grant
- 1994-07-25 EP EP94921596A patent/EP0750788B1/de not_active Expired - Lifetime
- 1994-07-25 US US08/586,705 patent/US5859579A/en not_active Expired - Lifetime
- 1994-07-25 JP JP50486195A patent/JP3636461B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH09501003A (ja) | 1997-01-28 |
US5859579A (en) | 1999-01-12 |
DE4425330A1 (de) | 1996-01-25 |
DE59405547D1 (de) | 1998-04-30 |
WO1995003619A1 (de) | 1995-02-02 |
JP3636461B2 (ja) | 2005-04-06 |
EP0750788A1 (de) | 1997-01-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0750788B1 (de) | Schalter zur strombegrenzung | |
DE69103135T2 (de) | Vorrichtung zum motor- und kurzschlussschutz. | |
EP2553691B1 (de) | Überspannungsschutzeinrichtung, umfassend mindestens einen überspannungsableiter | |
DE202006020737U1 (de) | Passive oder aktive Kurzschließeinrichtung für den Einsatz in Nieder- und Mittelspannungsanlagen zum Sach- und Personenschutz | |
WO2008049777A1 (de) | Abtrennanordnung und verfahren zum betätigen einer abtrennanordnung | |
EP3061111B1 (de) | Vorrichtung und verfahren zum schalten eines gleichstromes | |
DE69013300T2 (de) | Überspannungsbegrenzender Schalter. | |
EP1644951B1 (de) | Verfahren und vorrichtung zur strombegrenzung mit einem flüssigmetall-strombegrenzer | |
DE69931744T2 (de) | Vakuumschaltgerät | |
EP1014403A1 (de) | Strombegrenzender Schalter | |
DE19856939A1 (de) | Schaltungsanordnung zum Schutz von elektrischen Installationen gegen Überspannungsereignisse | |
EP1644952B1 (de) | Verfahren und vorrichtung zur strombegrenzung mit einem selbstbetätigten strombegrenzer | |
EP3953957B1 (de) | Verfahren zur unterbrechungsfreien anpassung von parametern eines stromkreises | |
EP3959734B1 (de) | Elektrischer schalter | |
EP2063524A1 (de) | Entregungselement für die Aufnahme eines Entregungsstroms von einer induktiven elektrischen Last | |
DE102020121589A1 (de) | Überspannungsschutzanordnung | |
DE102020205784A1 (de) | Schaltgerät mit Kommutierungsstrompfad | |
DE102020206250B3 (de) | Überspannungsschutz | |
EP0231469B1 (de) | Leistungsschalter | |
EP0087642B1 (de) | Leitungsschutzschalteranordnung, geeignet als Vorautomat | |
WO2017012799A1 (de) | Strombegrenzereinrichtung mit spule und schalter | |
WO2023213934A1 (de) | Hybridschutzschaltervorrichtung, hybridschütz und verfahren | |
EP1496533A1 (de) | Flüssigmetall-Stromschalter mit Piezo-Fluidantrieb | |
EP1022755B1 (de) | Strombegrenzender Schalter | |
EP0210495B1 (de) | Freilaufschaltung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19951204 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19970804 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980325 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: MAIER, REINHARD Inventor name: HARTMANN, WERNER Inventor name: KIESER, JOERG Inventor name: BRANSTON, DAVID, WALTER |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: SIEMENS SCHWEIZ AG Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 59405547 Country of ref document: DE Date of ref document: 19980430 |
|
ET | Fr: translation filed | ||
ITF | It: translation for a ep patent filed |
Owner name: STUDIO JAUMANN P. & C. S.N.C. |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19980625 |
|
GBV | Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed] |
Effective date: 19980325 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20031010 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040731 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050725 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20060918 Year of fee payment: 13 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080201 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20070720 Year of fee payment: 14 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20090331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20080731 |