EP1470565B1 - Elektrisches schaltgerät - Google Patents

Elektrisches schaltgerät Download PDF

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Publication number
EP1470565B1
EP1470565B1 EP03702406A EP03702406A EP1470565B1 EP 1470565 B1 EP1470565 B1 EP 1470565B1 EP 03702406 A EP03702406 A EP 03702406A EP 03702406 A EP03702406 A EP 03702406A EP 1470565 B1 EP1470565 B1 EP 1470565B1
Authority
EP
European Patent Office
Prior art keywords
contact point
switching device
resistor body
resistor
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.)
Expired - Lifetime
Application number
EP03702406A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1470565A1 (de
Inventor
Peter Schick
Joachim Majewski
Erwin Muders
Klaus Zimmer
Joachim Becker
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
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1470565A1 publication Critical patent/EP1470565A1/de
Application granted granted Critical
Publication of EP1470565B1 publication Critical patent/EP1470565B1/de
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
    • H01H71/1081—Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker
    • 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
    • H01H71/40—Combined electrothermal and electromagnetic mechanisms

Definitions

  • the invention relates to an electrical switching device, in particular a main circuit breaker according to the preamble of claim 1.
  • Such a switch has become known from DE 28 54 711. It has a first contact point, to which a parallel current path is connected, in which a current limiting resistor is inserted.
  • the resistor there is made as a resistance wire, for example made of CrAl255, Cu or other alloys, wherein the wire is wound into a coil, which claims a relatively large amount of space due to their design and the required resistance value.
  • a coil-shaped resistor generates a large magnetic field, so that the coil must be wound consuming anti-parallel.
  • the coil When using bare wires, the coil must be wound on a high temperature resistant support body to prevent the windings attract when energized and thus cause a Windungsschluß. If the resistance wire is insulated, then come as insulating expensive and poorly manageable materials such. B. glass silk used.
  • the object of the invention is to provide a switch of the type mentioned, in which the disadvantages of the known arrangement are avoided.
  • a resistor body which consists of doped ceramic whose temperature coefficient is the same or negative is located in the parallel current path parallel to the first contact point.
  • the resistor material for forming the resistor body is commercially available. It consists of a mixture of clay, aluminum and carbon, which is subjected to a sintering process after being pressed to its final shape.
  • the circuit breaker is provided with a housing composed of two shell halves, the shell halves have perpendicular to the inner surface of the broad side extending strips which define after assembly of the shell halves a space in which the resistance body is received and supported.
  • a circuit breaker has a housing 10 which may be formed either of a cup-shaped housing lower part and a lid or two approximately the same shell halves.
  • a housing 10 Within this housing 10 is a first contact point 11 with a fixed contact piece 12 and a movable contact piece 13; the movable contact piece 13, which is arranged on a pivotable contact lever 14, is pivoted by an electromagnet when a short-circuit current occurs, so that the contact point 11 is opened.
  • This contact point 11 is associated with a parallel current path 15, in which a resistance body 16 is located; when the contact point 11 is opened, there arises an arc which migrates into an arc splitter stack 17;
  • the current is commutated in the secondary current path 15 and limited by the electrical resistance of the resistor body 16.
  • FIG. 5 An electrical equivalent circuit diagram of this switching device is shown in Fig. 5.
  • the first contact point 11 is as a second contact point 19.
  • Parallel to the first contact point 11 of the parallel-current path 15 is connected, in which the resistance body 16 is arranged.
  • Electrically in series with the resistor body 16 is a not shown in detail in Fig.
  • the main current path 18 is another bimetallic strip 36, which is also not shown in FIG. 1; This bimetallic also acts on the switching mechanism 21, wherein the switching mechanism 21 is connected via the line of action 23 with the contact point 19.
  • the lines of action of the thermostatic bimetal 20, 36 on the switch lock are designated by the reference numerals 24 and 25.
  • the housing 10 is here formed of a cup-shaped housing lower part 10 a and a cup-shaped upper part 10 b, on which respective strips 26, 27; 28, 29 are formed, which are also visible in FIG. 1. Through the strips 26 to 29, a space 30 is formed, in which the resistance body 16 is housed.
  • the conductor 31 is designed as a straight component, whereas the conductor 32 in the region of the contacting surface 16 a of the resistance body 16 has a contact surface 16 a convex portion 33.
  • At least one of the two conductor pieces 31, 32 is resilient. In the embodiment of FIG. 3, this is the conductor 32, whereas in the embodiment of FIG. 4, the conductor 31 a is formed resiliently.
  • the conductor 32 may be shaped so that it holds the resistance body 16 with a bend 34 and a bend or angling 35.
  • the resistor body 16 had a positive temperature coefficient, then the current would be limited so far that the armature of the trigger 40 drops and the contact point 11 closes, which would be unfavorable. Due to the approximately constant or negative temperature coefficient, the current through the trigger 40 remains the same or is slightly larger, so that the contact point can be kept sufficiently long in the open position.
  • the resistor body may be made of a carbon-doped ceramic; there is also the possibility to use a carbon carbide doped silicon carbide.
  • the resistor body 16 may also be doped with other conductive materials.
  • the resistance body as needed any shape, eg. B. cylinder, hollow cylinder, cube or prism shape.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Thermally Actuated Switches (AREA)
  • Saccharide Compounds (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Glass Compositions (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Relay Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP03702406A 2002-01-30 2003-01-09 Elektrisches schaltgerät Expired - Lifetime EP1470565B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10203443A DE10203443A1 (de) 2002-01-30 2002-01-30 Elektrisches Schaltgerät
DE10203443 2002-01-30
PCT/EP2003/000121 WO2003065398A1 (de) 2002-01-30 2003-01-09 Elektrisches schaltgerät

Publications (2)

Publication Number Publication Date
EP1470565A1 EP1470565A1 (de) 2004-10-27
EP1470565B1 true EP1470565B1 (de) 2006-04-12

Family

ID=7713329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03702406A Expired - Lifetime EP1470565B1 (de) 2002-01-30 2003-01-09 Elektrisches schaltgerät

Country Status (6)

Country Link
EP (1) EP1470565B1 (pl)
CN (1) CN1327465C (pl)
AT (1) ATE323324T1 (pl)
DE (3) DE10203443A1 (pl)
PL (1) PL200064B1 (pl)
WO (1) WO2003065398A1 (pl)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10354505B4 (de) * 2003-11-21 2006-01-12 Eti Elektroelement D.D. Elektrischer Selbstschalter
DE102004019175A1 (de) * 2004-04-16 2005-11-03 Abb Patent Gmbh Installationsschaltgerät
DE102004019178A1 (de) * 2004-04-16 2005-11-03 Abb Patent Gmbh Installationsschaltgerät
DE102006037234A1 (de) * 2006-08-09 2008-02-14 Siemens Ag Schalt-Einheit
DE102007004092A1 (de) 2007-01-26 2008-08-07 Siemens Ag Leitungsschutzschalter
DE102008017932A1 (de) 2007-04-13 2008-10-16 Abb Ag Installationsschalter und Stromzählersystem
EP1981055A1 (de) 2007-04-13 2008-10-15 Abb Ag Installationsschalter und Stromzählersystem
SI2223321T1 (sl) * 2007-12-24 2015-10-30 Eti Elektroelement D.D. Električno avtomatsko stikalo
DE102008017273B4 (de) 2008-04-04 2024-12-12 Eti Elektroelement D.D. Elektrischer Selbstschalter
DE102008038244B4 (de) 2008-08-18 2016-09-29 Hager Electro S.A.S. Selektivauslöser für Hauptsicherungsautomat
DE102009036227B4 (de) 2009-08-05 2015-02-05 Abb Ag Elektrischer Widerstand, Verfahren zu seiner Herstellung und Installationsschaltgerät mit elektrischem Widerstand
DE102011008078A1 (de) 2011-01-08 2012-07-12 Peter Flohr Fernschaltbarer selektiver Hauptleitungsschutzschalter
DE102012023914A1 (de) 2012-12-06 2014-06-12 Peter Flohr Zentral sperr-und freischaltbarer Hauptsicherungsautomat
DE102014001997B4 (de) 2014-02-17 2020-01-09 Abb Ag Hilfsschalter mit Test-Taste

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE467116A (pl) * 1945-08-07
DE947813C (de) * 1952-11-13 1956-08-23 Licentia Gmbh Schmelzsicherung zur Ausloesung von Schaltern
DE2854711C2 (de) * 1978-12-18 1984-04-26 Brown, Boveri & Cie Ag, 6800 Mannheim Selektivschutzeinrichtung
DE2854616C2 (de) * 1978-12-18 1984-03-22 Brown, Boveri & Cie Ag, 6800 Mannheim Selektivschutzeinrichtung
DE3021867A1 (de) * 1980-06-11 1981-12-17 Brown, Boveri & Cie Ag, 6800 Mannheim Selbstschalter
DE4221309A1 (de) * 1992-06-29 1994-01-05 Abb Research Ltd Strombegrenzendes Element
DE19500125A1 (de) * 1995-01-04 1996-07-11 Licentia Gmbh Strombegrenzer
DE19651298C2 (de) * 1996-12-10 1999-04-01 Fein C & E Reihenschlußmotor mit Kommutator und Bremswicklung
DE29918351U1 (de) * 1999-10-18 2000-02-10 Chern, Der-Luh, Chung-Ho, Taipeh Vorrichtung zum Schutz gegen Blitzschlag für ein elektrisches Gerät

Also Published As

Publication number Publication date
PL200064B1 (pl) 2008-12-31
EP1470565A1 (de) 2004-10-27
DE10261994A1 (de) 2004-02-05
DE50302958D1 (de) 2006-05-24
CN1537316A (zh) 2004-10-13
PL369824A1 (pl) 2005-05-02
WO2003065398A1 (de) 2003-08-07
DE10203443A1 (de) 2003-07-31
ATE323324T1 (de) 2006-04-15
CN1327465C (zh) 2007-07-18

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