[go: up one dir, main page]

EP0012451A1 - Dispositif de protection sélective - Google Patents

Dispositif de protection sélective Download PDF

Info

Publication number
EP0012451A1
EP0012451A1 EP79105258A EP79105258A EP0012451A1 EP 0012451 A1 EP0012451 A1 EP 0012451A1 EP 79105258 A EP79105258 A EP 79105258A EP 79105258 A EP79105258 A EP 79105258A EP 0012451 A1 EP0012451 A1 EP 0012451A1
Authority
EP
European Patent Office
Prior art keywords
current
circuit breaker
point
coil
parallel
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
Application number
EP79105258A
Other languages
German (de)
English (en)
Other versions
EP0012451B1 (fr
Inventor
Klaus Dipl.-Ing. Greefe
Lutz Dr. Niemeyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Germany
Original Assignee
BBC Brown Boveri AG Germany
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri AG Germany filed Critical BBC Brown Boveri AG Germany
Priority to AT79105258T priority Critical patent/ATE2917T1/de
Publication of EP0012451A1 publication Critical patent/EP0012451A1/fr
Application granted granted Critical
Publication of EP0012451B1 publication Critical patent/EP0012451B1/fr
Expired legal-status Critical Current

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
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker

Definitions

  • the invention relates to a selective protection device for the selective shutdown of consumers, optionally with an upstream main fuse, at least one main circuit breaker in series with this and connected downstream with a first tripping characteristic, and with at least one circuit breaker assigned to a consumer group with a second tripping characteristic below the first Tripping characteristic is, the main line circuit breaker is a disconnection point, which can be opened by an impact armature when an overcurrent or short-circuit current occurs and has a thermal release.
  • circuit breakers For overcurrent and short-circuit protection, in addition to fuses, circuit breakers have been used more and more frequently, which have a thermal release for tripping in the event of an overcurrent and a magnetic release for tripping in the event of a short-circuit current.
  • a bimetal is usually used as a thermal trigger, which bends when an overcurrent occurs, thereby unlatching the switching mechanism and thus separating the contact lever or the movable contact piece from the fixed contact piece.
  • This thermal release is a so-called delayed release because it only responds to an overcurrent due to the heating up after a certain time.
  • a magnetic armature system is provided as the magnetic trigger, which responds practically without delay and without delay — opens the contact point or unlatches the switch lock.
  • the line circuit breaker can be connected downstream of a back-up fuse, and its tripping must take place in the event of a short circuit in front of the consumer so that the back-up fuse does not respond either in the overcurrent range or in the short-circuit current range.
  • the triggers currently customary, one can generally achieve that an automaton is "selective" against a fuse, the nominal current of which is two steps higher than that of the circuit breaker.
  • the opening device being designed in such a way that it quickly opens the switch contacts through which the overcurrent flows at the various stages. It is also designed in such a way that it enables the contacts to be switched on again quickly when the current value falls below a predetermined value.
  • the trigger control has a counter which counts the successive opening and closing sequences of the contacts and which can trigger after a predetermined number of sequences, so as to keep the contacts of the corresponding switch open after the predetermined number of sequences. This means that the switch that is directly assigned to the consumer opened after a single opening, the higher-level switch remains open after opening twice, and the switch above it opens after three times, and so on.
  • the object of the invention is to provide a significantly simplified and cheaper trigger control that does not require resettable counting devices and still enables the desired selectivity in a self-switching cascade.
  • a switching device is provided in the current path of the main circuit breaker, which at least partially switches the current to a parallel branch provided with a magnetic release when a short-circuit current occurs, and in that the parallel branch contains a device which, after passing through, provides a predetermined value Value of ⁇ i 2 dt increases the current through the coil of the magnetic release so that it triggers a switching lock, which finally opens the separation point.
  • a particularly advantageous embodiment is based on the fact that the switching process of the switching device is controlled by the opening movement of the disconnection point; the switchover device can have an auxiliary disconnection point which, when the separation point is opened, is mechanically and / or electrically opened by it and the current on the parallel branch at least partially commutated, the parallel branch being connected in parallel to the auxiliary isolating point.
  • the auxiliary separation point can be in series with the separation point or a further auxiliary separation point can be connected in parallel in the parallel branch to the auxiliary separation point, whereby when the separation point is opened the further auxiliary separation point closes and when triggered by a lever linkage both the separation point and the auxiliary separation points can be moved to the off position are.
  • an NTC resistor can be connected in the parallel branch in series with the coil, or a PTC resistor can be connected parallel to the coil of the magnetic release and, if appropriate, to the NTC resistor.
  • NTC resistor in series with the coil and a PTC resistor in parallel with the coil and the NTC resistor.
  • thermobimetal is arranged as a device for increasing the current through the coil of the magnetic release parallel to the coil of the magnetic release, which forms a current path parallel to the auxiliary disconnection point, with a contact being attached to the bending-out end of the thermobimetal forms a contact point with the end of the coil, which is open in the de-energized state and is closed when an overcurrent flows through it, so that at least part of the current then flows through the coil to trigger the trigger.
  • a particularly advantageous design can be that two circuit breakers are arranged next to one another, each having a magnetic release, the separation points of which are in series with one another, a thermobimetal being connected in parallel with the coil of the first circuit breaker, and an intermediate part is provided which is parallel to the Disconnection point of the first circuit breaker lying device for increasing the breaking current.
  • FIG. 2 Reference is first made to FIG. 2.
  • FIG. 3 shows the main current path 16, in which there is a switching device 40 and the main disconnection point 42 of the circuit breaker 14.
  • a parallel branch 44 is connected to the switching device 40 and opens into the main current path between the switching device 40 and the separation point.
  • a series resistor 46 and a tripping device 48 are switched on, which acts on a switching lock 50, which opens the separation point 42 via the line of action 52 causes.
  • the triggering device 48 is shown in FIGS. 4a, 4b, c and d. It consists of a conventional tripping coil 54 with a tripping pin (not shown), which acts on the switching mechanism 50 and in series with an NTC resistor 56.
  • a PTC resistor 58 can also be connected in parallel with the coil 54 (cf. FIG. 4b) or a PTC resistor can be connected in parallel with the coil 54 and an NTC resistor 56 in series with the coil (see FIG. 4c).
  • the opening movement of the separation point 42 controls the switching of the switching device via the line of action 60 in such a way that at least part of the current is switched to the parallel branch 44 when the separation point 42 opens.
  • the switching device 40 will commutate the current to the Aisllös owned 48 when a short-circuit current occurs and thus when the disconnection point 42 is opened, and because of the action of the resistors 56 and 58 Fig. A, b and c only after passage of a certain one
  • the current through the trip coil 54 is increased so far that a trip is possible.
  • the single current variable resistors 56, 58 is obtained a change of the tripping characteristic K 14 as meaning that the lower tip portion ( Vietnamese - drawn.) Cut off and is replaced by the horizontal portion K 14MA.
  • the trip coil 54 is increased in current by the NTC resistor 56 being sufficiently low-resistance due to heating . and thus the current flow through the coil is increased.
  • the PTC resistor 56 becomes sufficiently high-resistance by heating and thus commutates the current into the coil.
  • both effects are combined with one another.
  • the resistance-changing effect of the PTC or NTC resistors can also be achieved according to FIG. 4d by a bimetal 53, on the one free end of which a contact 55 is attached, which cooperates with a fixed contact 57.
  • the bimetal 53 bends out and opens the contact point at 55 and 57; the circuit can also be designed such that the bimetal 53 bends and closes a contact point (not shown).
  • the switching device 40 is now designed in principle as shown in Figures 5a, b, c.
  • Figures 5a and b serves. as a switching device, an auxiliary contact point 61, the triggering device 48 of the auxiliary contact point 61 being connected in parallel at 5a and, in the embodiment according to FIG. 5b, a closing auxiliary contact point 62 (hereinafter referred to as the auxiliary contact point and auxiliary disconnecting points), which is connected in series with the triggering device 48 , wherein the series connection of tripping device or tripping device 48 and auxiliary separation point 62 of the auxiliary separation point 61 is connected in parallel.
  • the operative connection between the main separation point 42 and the auxiliary separation point 62 can be made mechanically, in a suitable manner, which is not to be shown further here.
  • the auxiliary separation point 62 also closes at the same time, as a result of which part of the current is commutated to the tripping device 48 (FIG. 5b).
  • the mechanical coupling of the main separation point 42 and the auxiliary separation point 62 is such that, after the switching lock 50 has been triggered, both the main separation point 42 and the auxiliary separation point 62 are opened, in contrast to the pure opening. For example can be effected with an additional lever device (not shown) on which the switching lock acts.
  • the switching device 40 is practically realized by tapping one of the quenching plates of the arc quenching plate stack 64, which is assigned to the separation point 42, and utilizing the arc current when switching off.
  • the arc current commutates at least partially onto the tripping device 48; and after two or possibly multiple tripping or opening of the contact and current flow through the tripping device the transmission value Q 14 ( ⁇ i 2. dt) is reached, the tripping device 48 finally triggers the switching lock 50 and the separation points remain open.
  • the tripping device 48 has a tripping coil 72 and a thermobimetal 76 parallel to the tripping coil. The thermobimetal is clamped in place at point 78 and can bend in the direction of arrow F under the action of a current.
  • the free end of the thermobimetal 76 is designed as a contact point 79, which is also formed with the contact point 80 Free end 82 of the coil 72 can cooperate (see. Dashed line 84 in FIG. 6).
  • a delay mass 86 can be provided (see FIG. 7).
  • this mass can consist of soft iron in the case of the embodiment according to FIG. 7.
  • a soft iron yoke 88 is switched on, which magnetically accelerates the switching or thermal bending of the bimetal and thus the closing of the contacts 78 and 90 at very high short-circuit currents, so that after a single opening operation the Tennstellen 42 and 61 the switching lock 50 is unlatched.
  • FIG. 8 A further embodiment is shown in FIG. 8.
  • the main current path 18 can be seen again, in which two isolating points 90 and 92 connected in series are switched on. Furthermore, there are a first coil 94 and a second coil 96 in the main current path 18, each of which acts on the contact points or separating points 90 and 92, respectively, via an impact armature shown as the effective line 98 and 100, respectively.
  • the trigger device 48 is again connected, which is designed in the form that is similar to the embodiment according to FIG. 6.
  • a thermobimetal 102 which is matched to the nominal current is connected in parallel with the coil 96 and can also be connected in series with the coil 94 (but not here), which acts on a first switching mechanism 104.
  • the coil 72 of an arrangement according to FIG. 4b also acts simultaneously on this first switching lock.
  • the PTC resistor in FIG. 8 which is parallel to the coil 72, is again with the reference number 74 referred to represent the similarities.
  • a PTC resistor in series with the coil has the reference number 46 and the secondary branch has the reference number 44.
  • the circuit arrangement according to FIG. 8 has a further switch lock 106 which is mechanically coupled to the switch lock 104 and can act on the separation point 90 (via the line of action 108) and 92 (via the line of action 110 or 112).
  • the PTC resistor 74 has a low resistance to the coil 72, so that it carries the major part of the total shunt current IN when the contact or the isolating point 92 has opened.
  • the resistor 74 has heated up sufficiently (possibly after switching the disconnection points 92 and 90 again if necessary), it becomes high-resistance so that a sufficient current can flow through the coil 72 so that it responds, triggers the switch locks 104 and 106 and avoids further heating of the resistor 74.
  • the two separation points 90 and 92 can be seen. While the separation point 92 practically acts as a switching device, the separation point 90 has the task of opening in a current-interrupting and - particularly importantly - current-limiting manner. In the event of a trip, the disconnection point must also open and, triggered by the switching mechanism 106, must remain open in order to switch off the current which still flows through the coil 72 when the disconnection point 92 is open.
  • the trigger (coil 72) responds and acts on the switch lock 104 for the final opening of the separation point 92 and thus on the switch lock 106 for the final opening of the separation point 90. This process expires when the short-circuit current is in the range which is limited by the horizontal line K 14MA . At higher short-circuit currents, triggers 96 and 94 release practically immediately.
  • Fig. 8 The arrangement of Fig. 8 can be practically divided into three parts.
  • a total of three framed elements can be seen, a dashed I, a dash-dotted III and a part II .. - ruling.
  • the dashed part is designated I and practically forms a first automatic circuit breaker with thermobimetal, while the - .. framed part forms a second automatic circuit breaker without thermobimetal and is identified with II.
  • the dash-dotted section III is to be regarded as an intermediate part, which corresponds to the triggering device 48 (see FIG. 3).
  • thermobimetal 76 that is to say in the region of the contact 79, is connected to the line of the parallel branch 44 by means of a strand 77 so that the bimetal 76 can move freely.

Landscapes

  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP79105258A 1978-12-18 1979-12-18 Dispositif de protection sélective Expired EP0012451B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79105258T ATE2917T1 (de) 1978-12-18 1979-12-18 Selektivschutzeinrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2854616 1978-12-18
DE2854616A DE2854616C2 (de) 1978-12-18 1978-12-18 Selektivschutzeinrichtung

Publications (2)

Publication Number Publication Date
EP0012451A1 true EP0012451A1 (fr) 1980-06-25
EP0012451B1 EP0012451B1 (fr) 1983-03-30

Family

ID=6057528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79105258A Expired EP0012451B1 (fr) 1978-12-18 1979-12-18 Dispositif de protection sélective

Country Status (3)

Country Link
EP (1) EP0012451B1 (fr)
AT (1) ATE2917T1 (fr)
DE (1) DE2854616C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350824A2 (fr) * 1988-07-15 1990-01-17 Asea Brown Boveri Aktiengesellschaft Dispositif de protection sélective contre la surintensité
EP0550927A1 (fr) * 1991-12-10 1993-07-14 Holec Systemen En Componenten B.V. Interrupteur de sécurité automatique sélectif
EP1137146A2 (fr) * 2000-03-17 2001-09-26 AEG Niederspannungstechnik GmbH & Co. KG Disjoncteur sélectif
WO2003065398A1 (fr) * 2002-01-30 2003-08-07 Abb Patent Gmbh Appareil de distribution electrique
DE10244759B4 (de) * 2002-09-26 2005-12-08 Bauer, Walter, Dr.-Ing. Spannfutter zum thermischen Einschrumpfen von Schäften
US7202205B1 (en) * 1999-09-01 2007-04-10 Daniel Stedman Connor Processes for making surfactants via adsorptive separation and products thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930960A1 (de) * 1979-07-31 1981-02-19 Bbc Brown Boveri & Cie Selektivschutzeinrichtung
DE2944619C2 (de) * 1979-11-05 1984-03-29 Brown, Boveri & Cie Ag, 6800 Mannheim Selbstschalter
DE3016435A1 (de) * 1980-04-29 1981-11-19 Christian Geyer GmbH & Co, 8500 Nürnberg Elektrisches schaltgeraet
DE3021867A1 (de) * 1980-06-11 1981-12-17 Brown, Boveri & Cie Ag, 6800 Mannheim Selbstschalter
DE3133200A1 (de) * 1981-08-21 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Leitungsschutzschalter, geeignet als vorautomat
DE3840482A1 (de) * 1988-12-01 1990-06-07 Asea Brown Boveri Elektrischer selbstschalter
DE10354505B4 (de) * 2003-11-21 2006-01-12 Eti Elektroelement D.D. Elektrischer Selbstschalter
DE102006037234A1 (de) * 2006-08-09 2008-02-14 Siemens Ag Schalt-Einheit
DE102006037227B3 (de) * 2006-08-09 2008-02-14 Siemens Ag Schutzschalter und Schutzschalteranordnung
DE102006042383A1 (de) * 2006-09-08 2008-03-27 Siemens Ag Selektiver Hauptleitungsschutzschalter
DE102008026813B4 (de) * 2008-06-05 2016-11-17 Hager Electro S.A.S. Elektrischer selektiver Selbstschalter

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2008086A1 (de) * 1969-02-24 1970-10-08 General Electric Company, Schenectady, N.Y. (V.St.A.) Elektrisches Energieverteilungssystern
DE1563837B2 (de) * 1966-12-27 1971-08-15 Stotz Kontakt GmbH, 6800 Mannheim Magnetischer ausloeser
DE2017168A1 (de) * 1970-04-10 1971-10-28 Bbc Brown Boveri & Cie Elektrische Energieverteilungsanlage
DE1563836B2 (de) * 1966-12-17 1973-04-12 Allgemeine Elektricitäts-Gesellschaft, AEG-Telefunken, 1000 Berlin u. 6000 Frankfurt Elektrische energieverteilungsanlage mit mehreren in reihe liegenden schaltgeraeten
DD106745A1 (fr) * 1973-07-13 1974-06-20
DE2553546A1 (de) * 1974-12-10 1976-06-16 Westinghouse Electric Corp Ueberstromschutzschalter
DE2412035B2 (de) * 1973-05-31 1976-08-26 Kombinat VEB Elektro-Apparate-Werke Berlin-Treptow, χ 1193 Berlin-Treptow Verteilungsanlage mit mehreren in reihe liegenden, selektiv gestaffelten, strombegrenzenden leistungsschaltern
DE2525192A1 (de) * 1973-12-20 1976-12-23 Merlin Gerin Selektivschutzvorrichtung
DD133503A1 (de) * 1977-09-19 1979-01-03 Keitel,Juergen,Dd Einrichtung zum selektiven kurzschlussschutz

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR879757A (fr) * 1941-08-21 1943-03-04 Limiteur rapide de courant de court-circuit
DE737514C (de) * 1941-11-12 1943-07-15 Aeg Einrichtung zur Begrenzung von Kurzschlussstroemen
FR2201566B1 (fr) * 1972-09-28 1975-03-14 Merlin Gerin

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1563836B2 (de) * 1966-12-17 1973-04-12 Allgemeine Elektricitäts-Gesellschaft, AEG-Telefunken, 1000 Berlin u. 6000 Frankfurt Elektrische energieverteilungsanlage mit mehreren in reihe liegenden schaltgeraeten
DE1563837B2 (de) * 1966-12-27 1971-08-15 Stotz Kontakt GmbH, 6800 Mannheim Magnetischer ausloeser
DE2008086A1 (de) * 1969-02-24 1970-10-08 General Electric Company, Schenectady, N.Y. (V.St.A.) Elektrisches Energieverteilungssystern
DE2017168A1 (de) * 1970-04-10 1971-10-28 Bbc Brown Boveri & Cie Elektrische Energieverteilungsanlage
DE2412035B2 (de) * 1973-05-31 1976-08-26 Kombinat VEB Elektro-Apparate-Werke Berlin-Treptow, χ 1193 Berlin-Treptow Verteilungsanlage mit mehreren in reihe liegenden, selektiv gestaffelten, strombegrenzenden leistungsschaltern
DD106745A1 (fr) * 1973-07-13 1974-06-20
DE2525192A1 (de) * 1973-12-20 1976-12-23 Merlin Gerin Selektivschutzvorrichtung
DE2553546A1 (de) * 1974-12-10 1976-06-16 Westinghouse Electric Corp Ueberstromschutzschalter
DD133503A1 (de) * 1977-09-19 1979-01-03 Keitel,Juergen,Dd Einrichtung zum selektiven kurzschlussschutz

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350824A2 (fr) * 1988-07-15 1990-01-17 Asea Brown Boveri Aktiengesellschaft Dispositif de protection sélective contre la surintensité
EP0350824A3 (fr) * 1988-07-15 1991-07-17 Asea Brown Boveri Aktiengesellschaft Dispositif de protection sélective contre la surintensité
EP0550927A1 (fr) * 1991-12-10 1993-07-14 Holec Systemen En Componenten B.V. Interrupteur de sécurité automatique sélectif
US7202205B1 (en) * 1999-09-01 2007-04-10 Daniel Stedman Connor Processes for making surfactants via adsorptive separation and products thereof
EP1137146A2 (fr) * 2000-03-17 2001-09-26 AEG Niederspannungstechnik GmbH & Co. KG Disjoncteur sélectif
EP1137146A3 (fr) * 2000-03-17 2005-10-05 AEG Niederspannungstechnik GmbH & Co. KG Disjoncteur sélectif
WO2003065398A1 (fr) * 2002-01-30 2003-08-07 Abb Patent Gmbh Appareil de distribution electrique
DE10244759B4 (de) * 2002-09-26 2005-12-08 Bauer, Walter, Dr.-Ing. Spannfutter zum thermischen Einschrumpfen von Schäften

Also Published As

Publication number Publication date
EP0012451B1 (fr) 1983-03-30
ATE2917T1 (de) 1983-04-15
DE2854616A1 (de) 1980-06-19
DE2854616C2 (de) 1984-03-22

Similar Documents

Publication Publication Date Title
EP0012451B1 (fr) Dispositif de protection sélective
EP0042113B1 (fr) Interrupteur automatique
CH653188A5 (de) Selektive sicherheitsschalteinrichtung zum schutz einer leistungsverteilungsanlage.
DE2854711C2 (de) Selektivschutzeinrichtung
DE2930960C2 (fr)
EP2769399B1 (fr) Série de disjoncteurs multipolaires
EP0013320B1 (fr) Interrupteur de protection de ligne principale utilisé comme interrupteur de protection de groupe
DE2700989A1 (de) Ausloesevorrichtung mit thermischer verzoegerung
EP0350829B1 (fr) Dispositif sélectif de protection contre les courants de court-circuit
DE4424125C1 (de) Hauptsicherungsautomat
EP0453776B1 (fr) Mécanisme de couplage avec disjoncteur ou sectionneur de charge et fusible
DE2854623C2 (de) Selektiver Hauptsicherungsautomat
DE3316230A1 (de) Leitungs- und/oder geraeteschutzschalter gegen ueberstrom und kurzschluss
DE102009031138B4 (de) Schalteinrichtung
DE2751451A1 (de) Elektrisches schaltgeraet
DE3133200A1 (de) Leitungsschutzschalter, geeignet als vorautomat
EP0043020A1 (fr) Appareillage d'installation électrique, notamment disjoncteur automatique
DE850018C (de) Unterbrechungseinrichtung
DE69734277T2 (de) Nullstromkreisunterbrechung
DE2610951A1 (de) Schutzschalter
DE1197967B (de) Mehrpoliger Netzschutzschalter fuer Nieder-spannungs-Hochstrom-Mehrphasenanlagen
DE2945683A1 (de) Leitungsschalter
CH660647A5 (de) Leitungs- und/oder geraeteschutzschalter gegen ueberstrom und kurzschluss.
DE2407134C2 (de) Strombegrenzender Leitungsschutzschalter
DE2720736A1 (de) Hoechststrombegrenzer fuer eine elektrische schaltanlage

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

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT NL SE

17P Request for examination filed
ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT NL SE

REF Corresponds to:

Ref document number: 2917

Country of ref document: AT

Date of ref document: 19830415

Kind code of ref document: T

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19841231

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19881219

ITTA It: last paid annual fee
EUG Se: european patent has lapsed

Ref document number: 79105258.2

Effective date: 19891205

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19961014

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19961021

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961024

Year of fee payment: 18

Ref country code: AT

Payment date: 19961024

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19961029

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19961114

Year of fee payment: 18

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 NON-PAYMENT OF DUE FEES

Effective date: 19971218

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971231

BERE Be: lapsed

Owner name: BROWN BOVERI & CIE A.G. MANNHEIM

Effective date: 19971231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19971218

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19980701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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