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TW200707875A - Ground fault circuit interrupter - Google Patents

Ground fault circuit interrupter

Info

Publication number
TW200707875A
TW200707875A TW095113986A TW95113986A TW200707875A TW 200707875 A TW200707875 A TW 200707875A TW 095113986 A TW095113986 A TW 095113986A TW 95113986 A TW95113986 A TW 95113986A TW 200707875 A TW200707875 A TW 200707875A
Authority
TW
Taiwan
Prior art keywords
ground fault
circuit
alternating current
power supply
current
Prior art date
Application number
TW095113986A
Other languages
Chinese (zh)
Other versions
TWI368371B (en
Inventor
Takahiro Kudo
Hisanobu Asano
Original Assignee
Fuji Electric Holdings
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 Fuji Electric Holdings filed Critical Fuji Electric Holdings
Publication of TW200707875A publication Critical patent/TW200707875A/en
Application granted granted Critical
Publication of TWI368371B publication Critical patent/TWI368371B/en

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
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
    • H02H3/335—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
    • 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)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

To obtain a highly reliably ground fault circuit interrupter that can reliably conduct a ground fault test even when an open phase or a minute ground fault current occurs in an alternating current electrical path. A ground fault circuit interrupter is disposed with a power supply circuit 5 that is supplied with electrical power from electrical paths of all phases of multiphase alternating current electrical paths 1 and forms a predetermined output voltage. A test circuit 7 is disposed with an oscillation circuit 7c, which uses the powder supply circuit 5 as a power supply to oscillate at a frequency different from the frequency of an alternating current power supply added to an alternating current electrical path that generates a simulated ground fault current, and a test switch 7b, which operates the opening/closing of the circuit that supplies the simulated ground fault current to a zero-phase current transformer 3 from the oscillation circuit 7c.
TW095113986A 2005-04-19 2006-04-19 Ground fault circuit interrupter TWI368371B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005121052A JP4742232B2 (en) 2005-04-19 2005-04-19 Earth leakage breaker

Publications (2)

Publication Number Publication Date
TW200707875A true TW200707875A (en) 2007-02-16
TWI368371B TWI368371B (en) 2012-07-11

Family

ID=37057433

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095113986A TWI368371B (en) 2005-04-19 2006-04-19 Ground fault circuit interrupter

Country Status (5)

Country Link
JP (1) JP4742232B2 (en)
KR (1) KR100972274B1 (en)
CN (1) CN1855341B (en)
FR (1) FR2884644B1 (en)
TW (1) TWI368371B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4369417B2 (en) * 2005-11-30 2009-11-18 三菱電機株式会社 Earth leakage breaker
KR100803379B1 (en) * 2007-05-23 2008-02-15 주식회사 대일프로텍 Control and monitoring apparatus for street light cabinet panel
KR100902683B1 (en) 2007-06-08 2009-06-15 주식회사 대륙 Circuit breaker
KR100924726B1 (en) * 2007-11-15 2009-11-04 주식회사 대륙 Electric reverse connection circuit of electric leakage breaker
CN101888082B (en) * 2010-07-09 2013-05-01 上海诺雅克电气有限公司 Residual current protector
CN103026578B (en) * 2010-07-30 2016-01-20 松下知识产权经营株式会社 Electric driving force automobile battery-charging device and be applied to the electric leakage confirmation method of this electric driving force automobile battery-charging device
KR101326418B1 (en) 2012-06-05 2013-11-11 엘에스산전 주식회사 A test circuit for earth leakage breaker under phase fault
JP6137982B2 (en) * 2013-08-01 2017-05-31 三菱電機株式会社 Earth leakage breaker
CN103399236B (en) * 2013-08-01 2015-12-02 德力西电气有限公司 A kind of hookup of residual current protecting
KR101889535B1 (en) 2016-09-21 2018-08-22 주식회사 이진스 Earth Leakage Breaker
CN107332201A (en) * 2017-08-23 2017-11-07 浙江夏兴电子科技股份有限公司 One kind is applied to three-phase circuit simulated leakage current generating circuit
KR102485205B1 (en) * 2018-01-30 2023-01-05 엘에스일렉트릭(주) Electric leakage circuit breaker

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920008243Y1 (en) * 1989-03-10 1992-11-14 시끼 모리야 Circuit device having circuit breaking and current detecting functions
KR100277921B1 (en) 1998-07-07 2001-01-15 이종수 Earth leakage cutoff inspection device and method
IT1319714B1 (en) * 2000-12-28 2003-11-03 Abb Ricerca Spa LOW VOLTAGE ELECTRONIC DIFFERENTIAL SWITCH WITH IMPROVED FUNCTIONALITY
JP4534373B2 (en) * 2001-03-26 2010-09-01 三菱電機株式会社 Circuit breaker with leakage current display unit
JP2004015961A (en) * 2002-06-10 2004-01-15 Kawamura Electric Inc Ground fault interrupter with three-phase phase-failure protector
GB0226111D0 (en) * 2002-11-08 2002-12-18 Delta Electrical Ltd Residual current devices
JP4253700B2 (en) * 2002-12-16 2009-04-15 富士電機機器制御株式会社 Earth leakage breaker
JP4264817B2 (en) * 2003-11-27 2009-05-20 富士電機機器制御株式会社 Earth leakage breaker
JP4400255B2 (en) * 2004-03-01 2010-01-20 富士電機機器制御株式会社 Earth leakage breaker

Also Published As

Publication number Publication date
CN1855341B (en) 2010-10-06
JP2006302601A (en) 2006-11-02
FR2884644B1 (en) 2019-06-28
FR2884644A1 (en) 2006-10-20
KR20060110749A (en) 2006-10-25
TWI368371B (en) 2012-07-11
CN1855341A (en) 2006-11-01
KR100972274B1 (en) 2010-07-23
JP4742232B2 (en) 2011-08-10

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