EP0386768A3 - Circuit device having circuit breaking and leakage current detecting functions - Google Patents

Circuit device having circuit breaking and leakage current detecting functions Download PDF

Info

Publication number
EP0386768A3
EP0386768A3 EP19900104459 EP90104459A EP0386768A3 EP 0386768 A3 EP0386768 A3 EP 0386768A3 EP 19900104459 EP19900104459 EP 19900104459 EP 90104459 A EP90104459 A EP 90104459A EP 0386768 A3 EP0386768 A3 EP 0386768A3
Authority
EP
European Patent Office
Prior art keywords
circuit
leakage current
current detecting
leakage
circuit device
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Withdrawn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
EP19900104459
Other languages
German (de)
French (fr)
Other versions
EP0386768A2 (en
Inventor
Shigeru Matsumoto
Eiichi Sato
Toshihiro Akiyama
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 JP5853089A external-priority patent/JPH02239533A/en
Priority claimed from JP6021489A external-priority patent/JPH02239535A/en
Priority claimed from JP6021389A external-priority patent/JPH02239534A/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP0386768A2 publication Critical patent/EP0386768A2/en
Publication of EP0386768A3 publication Critical patent/EP0386768A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • 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
    • H01H73/12—Means for indicating condition of the switch
    • H01H73/14—Indicating lamp structurally associated with the switch
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/1054—Means for avoiding unauthorised release
    • 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
    • H01H83/04—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 with testing means for indicating the ability of the switch or relay to function properly

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A circuit device including a leakage alarm function by incorporating in the breaker case (2) a zero-phase current transformer (7) for detecting a leakage current and a leakage relay (22) for issuing leakage alarm at reception of detection signal from said zero-phase current transformer which is mounted at a remote location from main parts of the circuit breaker of the casing. Provision is also made for a particularly advantageous arrangement of indicators (28) and switch actuating mechanism.
EP19900104459 1989-03-10 1990-03-08 Circuit device having circuit breaking and leakage current detecting functions Withdrawn EP0386768A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP5853089A JPH02239533A (en) 1989-03-10 1989-03-10 Breaker for wiring with earth leakage alarming function
JP58530/89 1989-03-10
JP6021489A JPH02239535A (en) 1989-03-13 1989-03-13 Breaker for wiring with earth leakage alarming function
JP6021389A JPH02239534A (en) 1989-03-13 1989-03-13 Breaker for wiring with earth leakage alarming function
JP60214/89 1989-03-13
JP60213/89 1989-03-13

Publications (2)

Publication Number Publication Date
EP0386768A2 EP0386768A2 (en) 1990-09-12
EP0386768A3 true EP0386768A3 (en) 1992-04-29

Family

ID=27296609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900104459 Withdrawn EP0386768A3 (en) 1989-03-10 1990-03-08 Circuit device having circuit breaking and leakage current detecting functions

Country Status (2)

Country Link
EP (1) EP0386768A3 (en)
KR (1) KR900015203A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303113A (en) * 1992-03-30 1994-04-12 General Electric Company Digital circuit interrupter with RFI and EMI shielding
DE10029001C2 (en) * 2000-06-17 2003-03-27 Rainer Seidel Automatic warning device before a critical inclination of the ship e.g. with wave formation or heeling
DE10196713D2 (en) * 2001-07-12 2004-05-27 Neidhardt Claus William Automatic anchor and heeling guard
KR20020010730A (en) * 2002-01-11 2002-02-04 홍성권 Circuit breaker with lamp of leakage of electricity
KR20030065195A (en) * 2002-01-31 2003-08-06 동일계기주식회사 A Earth Leakage Detector and Alarm
JP2008159456A (en) * 2006-12-25 2008-07-10 Fuji Electric Fa Components & Systems Co Ltd Ground-fault interrupter
CN101281837B (en) * 2007-04-05 2011-06-29 浙江正泰电器股份有限公司 Modularization aftercurrent actuating protector
JP5070949B2 (en) * 2007-06-19 2012-11-14 富士電機機器制御株式会社 Circuit breaker with leakage alarm
CN111162457B (en) * 2020-01-14 2021-10-29 益阳玲智工程技术有限公司 Pre-alarm device for low-voltage power distribution cabinet

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1563831B2 (en) * 1966-08-30 1971-06-09 Stotz Kontakt GmbH 6800 Mannheim ELECTRIC CIRCUIT BREAKER WITH OVERCURRENT SHORT CIRCUIT AND FAULT CURRENT RELEASE
DE1538334B2 (en) * 1966-05-06 1972-08-17 Brown, Boveri & Cie Ag, 6800 Mannheim FAULT CIRCUIT BREAKER
US3984736A (en) * 1975-02-04 1976-10-05 Thin Fay Rai Leakage protective device
GB2162002A (en) * 1984-07-20 1986-01-22 Hsieh Teng Jui Circuit breaker with load alarm
EP0275750A1 (en) * 1986-12-29 1988-07-27 Merlin Gerin Bipolar differential interrupter with fault indicator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538334B2 (en) * 1966-05-06 1972-08-17 Brown, Boveri & Cie Ag, 6800 Mannheim FAULT CIRCUIT BREAKER
DE1563831B2 (en) * 1966-08-30 1971-06-09 Stotz Kontakt GmbH 6800 Mannheim ELECTRIC CIRCUIT BREAKER WITH OVERCURRENT SHORT CIRCUIT AND FAULT CURRENT RELEASE
US3984736A (en) * 1975-02-04 1976-10-05 Thin Fay Rai Leakage protective device
GB2162002A (en) * 1984-07-20 1986-01-22 Hsieh Teng Jui Circuit breaker with load alarm
EP0275750A1 (en) * 1986-12-29 1988-07-27 Merlin Gerin Bipolar differential interrupter with fault indicator

Also Published As

Publication number Publication date
EP0386768A2 (en) 1990-09-12
KR900015203A (en) 1990-10-26

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