EP0948020A3 - A trip unit for an hydraulic/magnetic circuit breaker - Google Patents

A trip unit for an hydraulic/magnetic circuit breaker Download PDF

Info

Publication number
EP0948020A3
EP0948020A3 EP99302511A EP99302511A EP0948020A3 EP 0948020 A3 EP0948020 A3 EP 0948020A3 EP 99302511 A EP99302511 A EP 99302511A EP 99302511 A EP99302511 A EP 99302511A EP 0948020 A3 EP0948020 A3 EP 0948020A3
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
hydraulic
trip unit
magnetic circuit
modular
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Withdrawn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
EP99302511A
Other languages
German (de)
French (fr)
Other versions
EP0948020A2 (en
Inventor
Wolfgang Weber
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.)
Circuit Breakers Ind Ltd
Original Assignee
Circuit Breakers Ind Ltd
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 Circuit Breakers Ind Ltd filed Critical Circuit Breakers Ind Ltd
Publication of EP0948020A2 publication Critical patent/EP0948020A2/en
Publication of EP0948020A3 publication Critical patent/EP0948020A3/en
Withdrawn legal-status Critical Current

Links

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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding
    • H01H71/345—Electromagnetic mechanisms having two or more armatures controlled by a common winding having a delayed movable core and a movable armature
    • 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
    • H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
    • H01H71/7409—Interchangeable elements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

An hydraulic/magnetic trip unit (10) for a circuit breaker (18) is modular and removable from the circuit breaker. The invention also relates to a circuit breaker including a modular and removable hydraulic/magnetic trip unit.
EP99302511A 1998-04-02 1999-03-31 A trip unit for an hydraulic/magnetic circuit breaker Withdrawn EP0948020A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA9802814 1998-04-02
ZA982814 1998-04-02

Publications (2)

Publication Number Publication Date
EP0948020A2 EP0948020A2 (en) 1999-10-06
EP0948020A3 true EP0948020A3 (en) 2000-06-07

Family

ID=25586932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99302511A Withdrawn EP0948020A3 (en) 1998-04-02 1999-03-31 A trip unit for an hydraulic/magnetic circuit breaker

Country Status (2)

Country Link
EP (1) EP0948020A3 (en)
JP (1) JPH11329200A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6956452B2 (en) 2003-09-24 2005-10-18 General Electric Company Apparatus and method for circuit breaker trip unit adjustment
US6980071B2 (en) 2003-09-24 2005-12-27 General Electric Company Apparatus and method for circuit breaker trip unit adjustment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729696A (en) * 1972-04-26 1973-04-24 Heinemann Electric Co Time delay actuator
DE2719053A1 (en) * 1976-04-28 1977-11-10 Gould Inc ENGINE STARTER
US4129843A (en) * 1976-10-05 1978-12-12 I-T-E Imperial Corporation Magnetic trip means for circuit breaker
EP0064906A1 (en) * 1981-05-07 1982-11-17 Merlin Gerin Multi-pole circuit breaker with an interchangeable thermal-magnetic trip unit
US4622530A (en) * 1983-06-02 1986-11-11 General Electric Company Circuit breaker assembly for high speed manufacture
EP0255955A2 (en) * 1986-08-07 1988-02-17 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
WO1996019007A1 (en) * 1994-12-15 1996-06-20 Siemens Energy & Automation, Inc. Interface connection for a circuit breaker plug-in trip unit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729696A (en) * 1972-04-26 1973-04-24 Heinemann Electric Co Time delay actuator
DE2719053A1 (en) * 1976-04-28 1977-11-10 Gould Inc ENGINE STARTER
US4129843A (en) * 1976-10-05 1978-12-12 I-T-E Imperial Corporation Magnetic trip means for circuit breaker
EP0064906A1 (en) * 1981-05-07 1982-11-17 Merlin Gerin Multi-pole circuit breaker with an interchangeable thermal-magnetic trip unit
US4622530A (en) * 1983-06-02 1986-11-11 General Electric Company Circuit breaker assembly for high speed manufacture
EP0255955A2 (en) * 1986-08-07 1988-02-17 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
WO1996019007A1 (en) * 1994-12-15 1996-06-20 Siemens Energy & Automation, Inc. Interface connection for a circuit breaker plug-in trip unit

Also Published As

Publication number Publication date
EP0948020A2 (en) 1999-10-06
JPH11329200A (en) 1999-11-30

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