EP1237171A2 - Dispositif pour le déclenchement sélectif - Google Patents

Dispositif pour le déclenchement sélectif Download PDF

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Publication number
EP1237171A2
EP1237171A2 EP02003395A EP02003395A EP1237171A2 EP 1237171 A2 EP1237171 A2 EP 1237171A2 EP 02003395 A EP02003395 A EP 02003395A EP 02003395 A EP02003395 A EP 02003395A EP 1237171 A2 EP1237171 A2 EP 1237171A2
Authority
EP
European Patent Office
Prior art keywords
magnetic yoke
circuit
hinged armature
short
circuit breaker
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
EP02003395A
Other languages
German (de)
English (en)
Other versions
EP1237171A3 (fr
EP1237171B1 (fr
Inventor
Kurt Händler
Klaus Dieter Nürenberg
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.)
Eaton Industries GmbH
Original Assignee
Moeller 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
Application filed by Moeller GmbH filed Critical Moeller GmbH
Publication of EP1237171A2 publication Critical patent/EP1237171A2/fr
Publication of EP1237171A3 publication Critical patent/EP1237171A3/fr
Application granted granted Critical
Publication of EP1237171B1 publication Critical patent/EP1237171B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • 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 an arrangement for selective triggering from one another horizontal, selectively staggered circuit breakers, especially circuit breakers and circuit breakers.
  • the duration of action of the restraint system is determined by a timer.
  • the Document EP 0 406 130 B1 shows an electromagnetic restraining system.
  • Known arrangements for generating the blocking signal e.g. according to document DE 195 45 928 A1, requires means for status detection and for current detection of the circuit breaker directly affected by the short circuit, which in general as a complex electronic trigger and space-taking air coils around the main current paths are realized. Such Arrangements are therefore not for small and inexpensive circuit breakers suitable.
  • EP 0 455 564 B1 discloses an overpressure release for a circuit breaker that detects an overpressure in the contact space appeals to the electric arcing in the electrodynamic Contact opening due to a short-circuit current flowing across the switch contacts arises.
  • the circuit breaker further includes an operating mechanism with a latching device that has a release shaft by a thermally delayed overload release or an electromagnetic Short-circuit release can be released, which means that the trigger Operating mechanism of the circuit breaker transferred to the off state becomes.
  • the overpressure release is activated to ensure selective triggering the trigger shaft with regard to the effect on the actuating mechanism with a time delay.
  • this solution is not for selective tripping at small short-circuit currents where no noticeable arcing due to an electrodynamic contact opening occurs, suitable.
  • the spring-loaded hinged anchor at rest a setting element for setting the tripping current is present and in Short-circuit case is attracted by a current-carrying magnetic yoke, and between the hinged armature and the magnetic yoke with signal connections formed contact element for outputting the blocking signal, that thanks to the attracting hinged anchor from the open to the closed Condition is transferable.
  • the spring-loaded hinged anchor at rest a setting element for setting the tripping current is present and in Short-circuit case is attracted by a current-carrying magnetic yoke, outside the air gap area between the hinged anchor and the magnetic yoke spring-loaded auxiliary anchor arranged in the rest position between himself and leaves the magnetic yoke an air gap and in the event of a short circuit from the magnetic yoke is tightened, and between the auxiliary anchor and the magnetic yoke one connected to signal connections for outputting the blocking signal Contact element formed by the attracting auxiliary anchor from the open can be converted into the closed state.
  • That per main circuit of the circuit breaker from the magnet armature of an electromagnetic Short-circuit release actuated contact element provides a simple arrangement without selective electronic means Trip represents the output signal in the event of a short circuit as Blocking signal is passed to the upstream circuit breaker.
  • the Signaling occurs through the interaction with the quick-release short-circuit release very fast and is independent of a contact opening or arcing in the associated contact space.
  • Training The contact element as a normally open contact has the advantages that the arrangement does not require electrical energy in the non-triggering state and so that the susceptibility to interference is kept to a minimum.
  • the invention Solution can be found in any circuit breaker with one or more Integrate short-circuit releases. A separate adjustment of the arrangement is not necessary as each short-circuit release itself via the setting element adjustable and the function of the arrangement is coupled to it. With the inventive arrangement equipped for selective triggering Circuit breakers can be easily converted into modules with several main current paths combine.
  • an electromagnetic short-circuit release 10 is provided in the first embodiment according to FIGS. 1 and 2, there is one main current path of a circuit breaker, an electromagnetic short-circuit release 10 is provided. Its hinged anchor 11, which is acted upon by a tension spring 3, is in the rest position - i.e. if no short-circuit current flows through the main current path - on a sliding adjustment element responsible for all main current paths 4 to set the tripping current.
  • a magnetic yoke 12 is from a current winding 5 arranged in the associated main current path.
  • the hinged armature 11 counteracts the force of the tension spring 3 by the magnetic yoke 12 around which the short-circuit current flows attracted and thereby overcomes the main air gap 9.
  • the tightened Folding anchor 11 acts on a person responsible for all main current paths, mechanical transmission element 6. In the event of a short circuit according to FIG. 1 to the right shifted transmission element 6 in turn acts on the Latching device of an actuating mechanism of the circuit breaker, which triggers the actuation mechanism and thus the main current paths to be interrupted.
  • the hinged anchor 11 is at its base 19 pivotally mounted in a bearing 13 of the magnetic yoke 12. On opposite standing points of the base point 19 and the magnetic yoke 12 is a Contact element 14 formed.
  • the contact element 14 is with a Magnetic yoke 12 arranged fixed contact 15 and one at the base 19 of the hinged anchor 11 arranged movable contact 16 is provided.
  • the contacts 15 and 16 are with signal connections leading to the outside 7 and 8 connected to receive a blocking signal.
  • the hinged armature 11 and the magnetic yoke 12 with plastic parts 17 or 18 covered to magnetic decoupling in this area to achieve. If a short-circuit current occurs through the associated Main current path is the base point 19 of the hinged anchor 11 from Magnet yoke 12 attracted before the hinged armature 11 completely the main air gap 9 overcomes. This is leading before the actuation mechanism is triggered a blocking signal is output to the higher-level circuit breaker.
  • the contact elements 14 for output a common blocking signal are to be connected in parallel.
  • the short-circuit release 20 of the second embodiment according to FIG. 3 to FIG. 5 also has one with its base 29 in a bearing 23 of one Magnet yoke 22 mounted and acted upon by a tension spring 3 hinged anchor 21 on.
  • the magnetic yoke 22 is also surrounded here by a current winding 5, and the hinged anchor 22 acts again with an adjusting element 4 and a transmission element 6 together.
  • the hinged anchor 21 is in the area its base 29 executed as a plastic part 27.
  • auxiliary anchor 30 arranged in the rest position between itself and the Magnet yoke 22 leaves an air gap and in the event of a short circuit from the magnet yoke 22 is attracted.
  • signal terminals 7, 8 Between the auxiliary anchor 30 and the magnetic yoke 22 is connected to signal terminals 7, 8 for outputting the blocking signal Contact element 24 formed by the attracting auxiliary anchor 30 can be converted from the open to the closed state.
  • the contact element 24 has fixed contacts 25 attached to the magnetic yoke 22 and movable contacts attached to the auxiliary anchor 30 via a contact bridge 32 26.
  • the two magnetic systems consisting of hinged anchors 21 and magnetic yoke 22 on the one hand and from auxiliary anchor 30 and magnetic yoke 22 on the other hand, are with regard to the masses of the hinged anchor 21 and the auxiliary anchor 30 and their existing air gaps in the rest position to the magnetic yoke 22 in dimensioned such that when a short-circuit current occurs through the main circuit of the circuit breaker belonging to the magnetic release 20 the auxiliary anchor 30 is prematurely tightened in front of the hinged anchor 21 becomes.

Landscapes

  • Breakers (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
EP20020003395 2001-03-01 2002-02-14 Dispositif pour le déclenchement sélectif Expired - Lifetime EP1237171B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10109951 2001-03-01
DE2001109951 DE10109951A1 (de) 2001-03-01 2001-03-01 Anordnung zur selektiven Auslösung

Publications (3)

Publication Number Publication Date
EP1237171A2 true EP1237171A2 (fr) 2002-09-04
EP1237171A3 EP1237171A3 (fr) 2004-03-17
EP1237171B1 EP1237171B1 (fr) 2006-06-07

Family

ID=7675983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020003395 Expired - Lifetime EP1237171B1 (fr) 2001-03-01 2002-02-14 Dispositif pour le déclenchement sélectif

Country Status (2)

Country Link
EP (1) EP1237171B1 (fr)
DE (2) DE10109951A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE480308C (de) * 1926-05-19 1929-08-13 Aeg UEberstromwaermeausloeser
DE1087680B (de) * 1958-02-04 1960-08-25 Elektroschaltgeraete Goerlitz Elektromagnetischer UEberstromausloeser
DD106745A1 (fr) * 1973-07-13 1974-06-20
US5301083A (en) * 1991-09-30 1994-04-05 Eaton Corporation Remote control residential circuit breaker
DE19930089A1 (de) * 1999-06-30 2001-01-04 Moeller Gmbh Anordnung zur selektiven Auslösung

Also Published As

Publication number Publication date
EP1237171A3 (fr) 2004-03-17
EP1237171B1 (fr) 2006-06-07
DE50207049D1 (de) 2006-07-20
DE10109951A1 (de) 2002-09-05

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