EP0427826B1 - Leitungsschutzschalter - Google Patents

Leitungsschutzschalter Download PDF

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Publication number
EP0427826B1
EP0427826B1 EP90906852A EP90906852A EP0427826B1 EP 0427826 B1 EP0427826 B1 EP 0427826B1 EP 90906852 A EP90906852 A EP 90906852A EP 90906852 A EP90906852 A EP 90906852A EP 0427826 B1 EP0427826 B1 EP 0427826B1
Authority
EP
European Patent Office
Prior art keywords
movable contact
arc
contact
circuit breaker
bearing
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
EP90906852A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0427826A1 (de
Inventor
Peter Flohr
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.)
Heinrich Kopp GmbH and Co KG
Original Assignee
Heinrich Kopp GmbH and Co KG
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 Heinrich Kopp GmbH and Co KG filed Critical Heinrich Kopp GmbH and Co KG
Publication of EP0427826A1 publication Critical patent/EP0427826A1/de
Application granted granted Critical
Publication of EP0427826B1 publication Critical patent/EP0427826B1/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
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • 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
    • H01H71/08—Terminals; Connections
    • 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
    • H01H77/10—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 electrodynamic opening
    • H01H77/101—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 electrodynamic opening with increasing of contact pressure by electrodynamic forces before opening
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure

Definitions

  • the invention relates to a circuit breaker according to the preamble of claim 1.
  • a circuit breaker has the task of shortening the current interruption in the event of a trip caused by a short circuit or line overload and in the event of a short circuit limiting the current to a minimum that the line to be protected cannot be damaged in the event of an error.
  • Such miniature circuit breakers are now produced in large quantities, partly fully automatically, so that the number of individual parts required for the function of the miniature circuit breaker, but also their ease of installation, are decisive for the economic success of this series product.
  • the adjustment effort for the calibration of the overcurrent release, but also the connections of the individual components through which the current flows, designed as a welding or soldering point delay the production process.
  • the object of the invention is therefore to provide a strongly current-limiting circuit breaker of the type mentioned in the introduction, in which any stranded connection can be dispensed with, which manages with only two welded or soldered connections and which does not require any adjustment effort.
  • the illustration shows schematically a circuit breaker with arc extinguishing device, switching mechanism and overcurrent release.
  • the arc chamber 1 there are, parallel to the chamber bottom wall, quenching plates 2, a contact arrangement 3, 4 and arc guide rails 5, 6.
  • the arc guide rail 6, on which the stationary contact piece 3 is attached, stands on the one hand with the coil of the overcurrent release 7 via the welding point 8 in connection, which in turn is connected at its other end via the welding point 9 to a connecting terminal 10.
  • the arc guide rail 5 flanks the lower quenching plate of the stack and forms a bearing 11 for the movable contact 4 with a rear extension 5a.
  • the arc guide rail 5 is arranged vertically in front of the quenching plates with an extension 5b which carries the connecting terminal 12.
  • the contact spring 13 is supported at one end in the housing 14 and presses the movable contact 4 against the fixed contact 3 in the switched-on state.
  • FIG. 1 shows this state and the force acting on the bearing point in the direction of the arrow and caused by the current flow.
  • the switching mechanism 15 is only shown for better understanding, it is of no importance for the short-circuit shutdown.
  • the current runs with closed contacts along the arrows shown from the terminal 12 via the arc guide rail 5 and the bearing 11, the movable contact 4 to the fixed contact 3 and from there via the coil of the overcurrent release 7 to the terminal 10.
  • the movable contact 4 flung away from the fixed contact 3 and the current interrupted.
  • the movable contact 4 goes into the position shown in FIG. 2, the arc drawn between the movable contact and the fixed contact jumping over from the movable contact to the arc guide rail 5 after reaching the open position. Due to the blowing effect of the power supply lines, the arc is driven into the quenching plate stack and extinguished there.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Keying Circuit Devices (AREA)
  • Fuses (AREA)
  • Electronic Switches (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP90906852A 1989-05-09 1990-05-02 Leitungsschutzschalter Expired - Lifetime EP0427826B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3915127 1989-05-09
DE3915127A DE3915127C1 (enrdf_load_stackoverflow) 1989-05-09 1989-05-09
PCT/DE1990/000316 WO1990013903A1 (de) 1989-05-09 1990-05-02 Leitungsschutzschalter

Publications (2)

Publication Number Publication Date
EP0427826A1 EP0427826A1 (de) 1991-05-22
EP0427826B1 true EP0427826B1 (de) 1995-04-19

Family

ID=6380319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90906852A Expired - Lifetime EP0427826B1 (de) 1989-05-09 1990-05-02 Leitungsschutzschalter

Country Status (8)

Country Link
US (1) US5151674A (enrdf_load_stackoverflow)
EP (1) EP0427826B1 (enrdf_load_stackoverflow)
AT (1) ATE121562T1 (enrdf_load_stackoverflow)
DE (1) DE3915127C1 (enrdf_load_stackoverflow)
DK (1) DK0427826T3 (enrdf_load_stackoverflow)
ES (1) ES2071819T3 (enrdf_load_stackoverflow)
HK (1) HK12196A (enrdf_load_stackoverflow)
WO (1) WO1990013903A1 (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313207A1 (de) * 1993-04-22 1994-10-27 Kopp Heinrich Ag Leitungsschutzschalter
DE4406670C3 (de) * 1994-03-01 1999-09-09 Kopp Heinrich Ag Leitungsschutzschalter
DE4424125C1 (de) * 1994-07-08 1995-07-13 Flohr Peter Hauptsicherungsautomat
DE4424332B4 (de) * 1994-07-11 2005-10-20 Kopp Heinrich Ag Leitungsschutzschalter
US5629662A (en) * 1995-02-01 1997-05-13 Siemens Energy & Automation, Inc. Low energy memory metal actuated latch
DE29620519U1 (de) * 1996-11-25 1997-02-06 Heinrich Kopp Ag, 63796 Kahl Kontaktanordnung für Fehlerstromschutzschalter
DE102005041231B4 (de) * 2005-08-31 2009-11-26 Abb Ag Elektrisches Schaltgerät
DE102005041232B4 (de) * 2005-08-31 2009-11-26 Abb Ag Elektrisches Schaltgerät
US7863534B2 (en) 2008-04-15 2011-01-04 General Electric Company Spring discharge mechanism for circuit breaker
CN102789931B (zh) * 2012-07-27 2015-03-25 法泰电器（江苏）股份有限公司 带逆向电流保护的断路器灭弧装置
SI25414B (sl) * 2017-04-13 2021-04-30 Nela Razvojni Center Za Elektroindustrijo In Elektroniko, D.O.O. Varnostno električno stikalo z izboljšanim kontaktnim sklopom
CN114496676B (zh) * 2020-10-26 2024-06-18 西门子能源国际公司 弧触头组件以及断路器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3342469A1 (de) * 1983-11-24 1985-06-05 Bbc Brown Boveri & Cie Elektrischer schalter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7508649U (de) * 1974-05-14 1975-08-28 Kopp H Hochleistungs-Selbstschalter
DE2841004C2 (de) * 1978-09-21 1980-10-02 Licentia Gmbh Leitungsschutzschalter mit zusätzlicher Blasschleife
DE3446041A1 (de) * 1984-12-18 1986-06-19 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer leitungsschutzschalter
US4654614A (en) * 1985-03-04 1987-03-31 Westinghouse Electric Corp. Current limiting solenoid operated circuit breaker
US4636760A (en) * 1985-04-10 1987-01-13 Westinghouse Electric Corp. Low voltage circuit breaker with remote switching function
DE3619239A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Schnellausloeser fuer leitungsschutzschalter
US4725799A (en) * 1986-09-30 1988-02-16 Westinghouse Electric Corp. Circuit breaker with remote control
DE3637275C1 (en) * 1986-11-03 1988-05-05 Flohr Peter Overcurrent trip device for protection switching apparatuses
DE3803849C1 (en) * 1988-02-09 1989-08-10 Flohr, Peter, Dipl.-Ing., 7790 Messkirch, De High-power switching path for protective switching devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3342469A1 (de) * 1983-11-24 1985-06-05 Bbc Brown Boveri & Cie Elektrischer schalter

Also Published As

Publication number Publication date
US5151674A (en) 1992-09-29
ATE121562T1 (de) 1995-05-15
ES2071819T3 (es) 1995-07-01
HK12196A (en) 1996-02-02
EP0427826A1 (de) 1991-05-22
DE3915127C1 (enrdf_load_stackoverflow) 1990-09-06
WO1990013903A1 (de) 1990-11-15
DK0427826T3 (da) 1995-06-26

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