EP0951045A2 - Disjoncteur à courant de défaut - Google Patents

Disjoncteur à courant de défaut Download PDF

Info

Publication number
EP0951045A2
EP0951045A2 EP99106744A EP99106744A EP0951045A2 EP 0951045 A2 EP0951045 A2 EP 0951045A2 EP 99106744 A EP99106744 A EP 99106744A EP 99106744 A EP99106744 A EP 99106744A EP 0951045 A2 EP0951045 A2 EP 0951045A2
Authority
EP
European Patent Office
Prior art keywords
release
circuit breaker
trigger
spring
plunger
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.)
Withdrawn
Application number
EP99106744A
Other languages
German (de)
English (en)
Other versions
EP0951045A3 (fr
Inventor
Ralf Dipl.-Ing. Wieland
Klaus-Peter Dipl.-Ing. Eppe
Rolf Ing. Goehle
Volker Schmitt
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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
Priority claimed from DE19912416A external-priority patent/DE19912416A1/de
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0951045A2 publication Critical patent/EP0951045A2/fr
Publication of EP0951045A3 publication Critical patent/EP0951045A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents

Definitions

  • the invention relates to a residual current circuit breaker according to the preamble of the claim 1.
  • FI fault current
  • Overcurrents and short-circuit currents are detected with a circuit breaker and lead to a shutdown, a so-called overcurrent, i.e. H. a stream that one determine percentage above the rated current, through a bimetal, and a Short-circuit current can be detected by an electromagnetic release; the movement Both triggers unlatch a latch lock point in a switch lock of the circuit breaker and thus a permanent switch-off the contact point.
  • the release forces that are equal to or greater than 1 N, both of the electromagnetic as well as the thermal release are sufficient to unlatch the latching point in the switch lock of the circuit breaker, since they are caused by the mains electricity and are generated with mains electricity energy.
  • a residual current circuit breaker monitors residual currents in the milliampere range lie. This is done using a summation current transformer, which is supplied by the network conductors is interposed as the primary winding, in the event of a residual current in a secondary winding Generates secondary current, which drives a residual current release, the triggering forces are very low. These low trigger forces are not enough to get one for one Unlock the circuit breaker suitable and designed switch lock. Therefore, a switch lock commonly used in circuit breakers not be used with a residual current circuit breaker.
  • a residual current circuit breaker has become known (EP 0 495 771 B1), in which the line fault current is detected as a function of voltage, with a in the secondary circuit Relay is located, which closes a switch in a trip circuit in which there is a shunt release located.
  • the trip circuit is with one leg on a phase conductor and connected with the other leg to the neutral conductor, so that the shunt release triggers depending on the mains voltage.
  • a shunt trip a circuit breaker are used, so that here the switch lock a circuit breaker can be used.
  • a residual current circuit breaker of the type mentioned is known from DE 37 33 595 A1 become.
  • This residual current circuit breaker has a switch lock with a first one Interlocking point, which is referred to as the main switchgear.
  • This main switch lock with the first latching point is an auxiliary switch with a second latching point assigned, which is actuated by a residual current release.
  • both the main switchgear and the auxiliary switchgear are installed independently of each other in the housing of the circuit breaker, which means an increased assembly effort.
  • the object of the invention is to provide a residual current circuit breaker in which Switch lock also uses a switch lock designed for miniature circuit breakers can be, but in which the assembly is considerably simplified.
  • both the trigger and the auxiliary switching mechanism are on a common one Carrier attached or attached.
  • the latching point which is assigned to the residual current release, acts like an amplifier. It is released with the low tripping force of the residual current release, whereby an energy storage device is released, its energy on the trigger element is transmitted, which is then designed for a circuit breaker latch latch opens. So there are two latching points, from some by the weak release force and the other by a strong one Release force is released.
  • a plate is provided, on which is formed perpendicular to it Arms are attached to which the trip relay can be fixed.
  • a flat retaining wall which is approximately a rectangular, is also formed on the plate Has shape and runs parallel to the plate; there are two L-shaped ones on the retaining wall Holding arms attached to which a circuit board running parallel to the holding wall is fixed is, in the space between the circuit board and the retaining wall, the auxiliary switch is arranged.
  • first release lever It can be between the retaining wall and the board, on this and perpendicular to both a rotatable first release lever can be provided on which the plunger of the trigger acts and pivots it against the force of a spring.
  • first Release lever With the first Release lever, the spring-loaded release element is latched, such that by Swiveling the first release lever the spring-loaded release element for unlatching the latch lock point can be released.
  • the trigger element acts on the key switch release lever.
  • the movement of the ram can of the residual current circuit breaker perpendicular to the path of movement of the tripping element run.
  • the key switch 10 is e.g. B. is shown in DE 196 53 266 A1.
  • the contact lever 11 is mounted in a contact shaft 14, on the eccentrically a transmission bracket 15 is hinged, the other end is against a stop surface 16 on a push button-like actuating element 17 and on a stop surface 18 a ratchet lever 19 is present.
  • This pawl lever 19 is on an axis of rotation 20 Actuator 17 pivotally mounted; the free end has a nose 21 which is supported behind a stop 22 on a ratchet lever 23; the two components 21 and 22 form the latching point of the key switch 10.
  • a trigger unit 24 is assigned to this switch lock, which has a trigger 25 which is a permanent magnet release, from whose housing a plunger 26 protrudes, which (as shown below) in the event of tripping in the direction of arrow P slides out or is pushed out of the housing of the trigger 25.
  • the trigger unit 24 has a carrier element or carrier 27 which is shown in FIGS. 8 and 9 is shown in more detail.
  • the carrier 27 has a rectangular, flat plate 40, on the Narrow side edges 41, 42 L-shaped arms 43 and 44 are formed, the free Give perpendicular to the plane of the plate 40 and in the ears 45 and 46 of the Trigger 25 can be inserted, so that on the plate 40 with the perpendicular to it Legs of arms 43 and 44 of trigger 25 is fixed.
  • a holding wall 48 is formed on the plate 40 on one longitudinal side edge 47 thereof, on which two holding arms 49 and 50 are formed perpendicularly, the holding arm 49 runs parallel to the leg 44a of the arm 44 approximately in alignment with this.
  • the support arm 50 is aligned perpendicular to the holding wall 48 and to the support arm 49 and on the support arms 49 and 50 a board 51 is fixed, which is perpendicular to each other extending edges has tabs 52 and 53 which contain eyelets 54 and 55, into which the support arms 49 and 50 are inserted and therein in a manner known per se be jammed, so that this is between the holding wall 48 and the circuit board 51 results in a receiving space 56 for an auxiliary switching mechanism.
  • guide slots 57 and 58 are introduced, the guide slot 57 opens into the edge of the carrier wall 48 opposite the tab 52, whereas the guide slot 58 approximately midway between the guide slot 57 and the tab 52 having edge runs.
  • FIG. 7 shows a top view in the direction of arrow VII of FIG. 8 with the trigger 25 and ears 45, 46.
  • a sliding carriage 28 is guided to reciprocate in the double arrow direction P 1 as a triggering element.
  • This sliding carriage 28 is under the pressure of a spring 29 which wants to move it to the left (in the embodiment and representation according to FIG. 2).
  • a transmission lever 31 is rotatably mounted about an axis 32 (see FIG. 2), this being by means of a spring 33 Transmission lever 31 is continuously applied clockwise around the axis 32.
  • the transmission lever 31 is a double arm lever, one arm 34 of which is connected to the spring 33, while the other arm 35 covers the plunger 26. With a nose 36, the transmission lever 31 bears against the stop 30, so that here a stop and a latching point is formed for the sliding carriage 28.
  • the carrier 27 therefore has two functions; on the one hand, it serves Holding the trigger 25 and on the other hand for guiding and holding the auxiliary switching mechanism, in which the trigger is attached to the plate 40 and the auxiliary switch in Intermediate space 56 is arranged between the holding wall 48 and the circuit board 51.
  • a modular Tripping unit created that the magnetic trigger 25 and the associated Auxiliary switch contains; this trip unit can be prefabricated and from the manufacturing site to a final assembly point for the finished residual current circuit breaker as a unit be transported.
  • An L-shaped lever 80 is formed on the carrier 27; by means of this lever 80 the Carrier 27 with auxiliary switch and trigger 25 on the main circuit breaker of the circuit breaker be connected.
  • FIGS. 7 and 8 Associated with the test arrangement, which has a test button 70, which has an extension 71 presses on a spring so that a test resistor 72, which is in a test circuit 73rd lies, can be switched on, whereby a fault current is simulated, the trigger 25 triggers.
  • a test arrangement is known as such.

Landscapes

  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP99106744A 1998-04-14 1999-04-03 Disjoncteur à courant de défaut Withdrawn EP0951045A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19816459 1998-04-14
DE19816459 1998-04-14
DE19912416A DE19912416A1 (de) 1998-04-14 1999-03-19 Fehlerstromschutzschalter
DE19912416 1999-03-19

Publications (2)

Publication Number Publication Date
EP0951045A2 true EP0951045A2 (fr) 1999-10-20
EP0951045A3 EP0951045A3 (fr) 2000-07-12

Family

ID=26045466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99106744A Withdrawn EP0951045A3 (fr) 1998-04-14 1999-04-03 Disjoncteur à courant de défaut

Country Status (1)

Country Link
EP (1) EP0951045A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113192798A (zh) * 2021-02-07 2021-07-30 浙江世隆电气科技有限公司 一种电子式和热磁式塑壳断路器通用安装的脱扣器结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1802115A1 (de) * 1967-10-13 1969-05-08 Airpax Electronics Fernbedienbarer elektrischer Schutzschalter
US3919674A (en) * 1974-11-26 1975-11-11 Gen Electric Accessory apparatus for tripping an electric circuit breaker
EP0241412A1 (fr) * 1986-04-08 1987-10-14 Siemens Aktiengesellschaft Dispositif pour le montage de déclencheurs auxiliaires
DE3733595A1 (de) * 1987-10-05 1989-04-20 Asea Brown Boveri Elektrisches schaltgeraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1802115A1 (de) * 1967-10-13 1969-05-08 Airpax Electronics Fernbedienbarer elektrischer Schutzschalter
US3919674A (en) * 1974-11-26 1975-11-11 Gen Electric Accessory apparatus for tripping an electric circuit breaker
EP0241412A1 (fr) * 1986-04-08 1987-10-14 Siemens Aktiengesellschaft Dispositif pour le montage de déclencheurs auxiliaires
DE3733595A1 (de) * 1987-10-05 1989-04-20 Asea Brown Boveri Elektrisches schaltgeraet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113192798A (zh) * 2021-02-07 2021-07-30 浙江世隆电气科技有限公司 一种电子式和热磁式塑壳断路器通用安装的脱扣器结构
CN113192798B (zh) * 2021-02-07 2024-05-10 浙江世隆电气科技有限公司 一种电子式和热磁式塑壳断路器通用安装的脱扣器结构

Also Published As

Publication number Publication date
EP0951045A3 (fr) 2000-07-12

Similar Documents

Publication Publication Date Title
DE68912738T2 (de) Modulschützschalter mit Hilfsauslöseblock mit einer automatischen oder unabhängigen Wiedereinschaltung.
DE3688033T2 (de) Ausschalter mit klinke.
EP1760747B1 (fr) Disjoncteur électrique
EP2634787B1 (fr) Mécanisme de verrouillage d'un disjoncteur
EP0231732B1 (fr) Disjoncteur de protection contre le courant de défaut et de fuite à la terre
EP0103167B1 (fr) Interrupteur avec déclenchement par un courant de fuite
EP0303965A2 (fr) Appareil de commutation électrique
EP2769399B1 (fr) Série de disjoncteurs multipolaires
DE2115034A1 (de) Elektrischer Schutzschalter zum Fehlerstrom-, Überstrom- und Kurzschluß-Schutz
DE10357691A1 (de) Fehlerstromschutzschalter
EP0091040B1 (fr) Disjoncteur de protection à courant excessif
DE3119165C2 (de) Selbstschalter als Baueinheit aus einem Leitungsschutzschalter sowie Hilfs- und Signalschaltern
DE2343908C2 (de) Stromunterbrecher mit Überstrom- und Hilfs-Auslösung
DE9302254U1 (de) Meldevorrichtung zur Signalisierung einer Kurzschluß und/oder Überstromauslösung
EP0279363A2 (fr) Disjoncteur de protection pour courant de défaut
DE19534612C2 (de) Stromkreisunterbrecher
EP0951045A2 (fr) Disjoncteur à courant de défaut
EP0310943B1 (fr) Appareil de commutation électrique
EP0849759B1 (fr) Appareil de coupure pour une installation électrique
EP1243013B1 (fr) Commutateur de simulation
DE3023512A1 (de) Elektrisches installationsgeraet, insbesondere selbstschalter
EP1488438B1 (fr) Disjoncteur avec interruption bipolaire
EP0014871B1 (fr) Disjoncteur de courant de fuite couplé à un interrupteur de circuit
DE19912416A1 (de) Fehlerstromschutzschalter
EP0851449B1 (fr) Appareil de commutation pour une installation électrique

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

Kind code of ref document: A2

Designated state(s): AT BE DE ES FR GB IT PT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI PAYMENT 19990414

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI PAYMENT 19990414

RIC1 Information provided on ipc code assigned before grant

Free format text: 7H 01H 83/02 A, 7H 01H 83/20 B

17P Request for examination filed

Effective date: 20000810

AKX Designation fees paid

Free format text: AT BE DE ES FR GB IT PT

AXX Extension fees paid

Free format text: SI PAYMENT 19990414

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ABB PATENT GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060530