GB1460310A - Earth fault detector - Google Patents

Earth fault detector

Info

Publication number
GB1460310A
GB1460310A GB3587474A GB3587474A GB1460310A GB 1460310 A GB1460310 A GB 1460310A GB 3587474 A GB3587474 A GB 3587474A GB 3587474 A GB3587474 A GB 3587474A GB 1460310 A GB1460310 A GB 1460310A
Authority
GB
United Kingdom
Prior art keywords
switch
contact blade
earth fault
reset button
contact
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
Application number
GB3587474A
Other languages
English (en)
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin SA
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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of GB1460310A publication Critical patent/GB1460310A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
GB3587474A 1973-08-20 1974-08-14 Earth fault detector Expired GB1460310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7330237A FR2241868B1 (xx) 1973-08-20 1973-08-20

Publications (1)

Publication Number Publication Date
GB1460310A true GB1460310A (en) 1977-01-06

Family

ID=9124133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3587474A Expired GB1460310A (en) 1973-08-20 1974-08-14 Earth fault detector

Country Status (7)

Country Link
BE (1) BE819008A (xx)
CH (1) CH589939A5 (xx)
DE (1) DE2438314C2 (xx)
FR (1) FR2241868B1 (xx)
GB (1) GB1460310A (xx)
IT (1) IT1016821B (xx)
NL (1) NL7410954A (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200083013A1 (en) * 2018-09-06 2020-03-12 Carling Technologies, Inc. Circuit Breaker With Slide To Test Function

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437692A1 (fr) * 1978-09-28 1980-04-25 Merlin Gerin Dispositif de protection differentielle a bloc differentiel accouple au bloc disjoncteur
FR2526995A1 (fr) * 1982-05-11 1983-11-18 Merlin Gerin Bouton test pour un declencheur differentiel
FR2604295B1 (fr) * 1986-09-23 1988-12-02 Merlin Gerin Appareil electrique de protection differentielle a circuit test
US6114641A (en) 1998-05-29 2000-09-05 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6037555A (en) 1999-01-05 2000-03-14 General Electric Company Rotary contact circuit breaker venting arrangement including current transformer
US6166344A (en) 1999-03-23 2000-12-26 General Electric Company Circuit breaker handle block
US6262872B1 (en) 1999-06-03 2001-07-17 General Electric Company Electronic trip unit with user-adjustable sensitivity to current spikes
US6268991B1 (en) 1999-06-25 2001-07-31 General Electric Company Method and arrangement for customizing electronic circuit interrupters
US6710988B1 (en) 1999-08-17 2004-03-23 General Electric Company Small-sized industrial rated electric motor starter switch unit
US6252365B1 (en) 1999-08-17 2001-06-26 General Electric Company Breaker/starter with auto-configurable trip unit
US6175288B1 (en) 1999-08-27 2001-01-16 General Electric Company Supplemental trip unit for rotary circuit interrupters
US6396369B1 (en) 1999-08-27 2002-05-28 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers
US6232570B1 (en) 1999-09-16 2001-05-15 General Electric Company Arcing contact arrangement
US6239395B1 (en) 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
US6229413B1 (en) 1999-10-19 2001-05-08 General Electric Company Support of stationary conductors for a circuit breaker
US6232856B1 (en) 1999-11-02 2001-05-15 General Electric Company Magnetic shunt assembly
ES2249875T3 (es) 1999-11-03 2006-04-01 AEG NIEDERSPANNUNGSTECHNIK GMBH & CO. KG Disposicion de brazo de contacto rotatorio para disyuntor.
US6172584B1 (en) 1999-12-20 2001-01-09 General Electric Company Circuit breaker accessory reset system
US6215379B1 (en) 1999-12-23 2001-04-10 General Electric Company Shunt for indirectly heated bimetallic strip
US6346869B1 (en) 1999-12-28 2002-02-12 General Electric Company Rating plug for circuit breakers
US6211758B1 (en) 2000-01-11 2001-04-03 General Electric Company Circuit breaker accessory gap control mechanism
US6239677B1 (en) 2000-02-10 2001-05-29 General Electric Company Circuit breaker thermal magnetic trip unit
US6429759B1 (en) 2000-02-14 2002-08-06 General Electric Company Split and angled contacts
US6313425B1 (en) 2000-02-24 2001-11-06 General Electric Company Cassette assembly with rejection features
US6404314B1 (en) 2000-02-29 2002-06-11 General Electric Company Adjustable trip solenoid
US6204743B1 (en) 2000-02-29 2001-03-20 General Electric Company Dual connector strap for a rotary contact circuit breaker
US6346868B1 (en) 2000-03-01 2002-02-12 General Electric Company Circuit interrupter operating mechanism
US6379196B1 (en) 2000-03-01 2002-04-30 General Electric Company Terminal connector for a circuit breaker
US6340925B1 (en) 2000-03-01 2002-01-22 General Electric Company Circuit breaker mechanism tripping cam
US6448521B1 (en) 2000-03-01 2002-09-10 General Electric Company Blocking apparatus for circuit breaker contact structure
US6459349B1 (en) 2000-03-06 2002-10-01 General Electric Company Circuit breaker comprising a current transformer with a partial air gap
US6496347B1 (en) 2000-03-08 2002-12-17 General Electric Company System and method for optimization of a circuit breaker mechanism
US6429659B1 (en) 2000-03-09 2002-08-06 General Electric Company Connection tester for an electronic trip unit
US6366188B1 (en) 2000-03-15 2002-04-02 General Electric Company Accessory and recess identification system for circuit breakers
US6218919B1 (en) 2000-03-15 2001-04-17 General Electric Company Circuit breaker latch mechanism with decreased trip time
US6232859B1 (en) 2000-03-15 2001-05-15 General Electric Company Auxiliary switch mounting configuration for use in a molded case circuit breaker
US6459059B1 (en) 2000-03-16 2002-10-01 General Electric Company Return spring for a circuit interrupter operating mechanism
FR2806548B1 (fr) 2000-03-17 2002-08-23 Ge Power Controls France Mecanisme extractible pour disjoncteurs
US6373010B1 (en) 2000-03-17 2002-04-16 General Electric Company Adjustable energy storage mechanism for a circuit breaker motor operator
US6559743B2 (en) 2000-03-17 2003-05-06 General Electric Company Stored energy system for breaker operating mechanism
US6639168B1 (en) 2000-03-17 2003-10-28 General Electric Company Energy absorbing contact arm stop
US6472620B2 (en) 2000-03-17 2002-10-29 Ge Power Controls France Sas Locking arrangement for circuit breaker draw-out mechanism
US6388213B1 (en) 2000-03-17 2002-05-14 General Electric Company Locking device for molded case circuit breakers
US6476698B1 (en) 2000-03-17 2002-11-05 General Electric Company Convertible locking arrangement on breakers
US6479774B1 (en) 2000-03-17 2002-11-12 General Electric Company High energy closing mechanism for circuit breakers
US6747535B2 (en) 2000-03-27 2004-06-08 General Electric Company Precision location system between actuator accessory and mechanism
US6373357B1 (en) 2000-05-16 2002-04-16 General Electric Company Pressure sensitive trip mechanism for a rotary breaker
US6400245B1 (en) 2000-10-13 2002-06-04 General Electric Company Draw out interlock for circuit breakers
US6806800B1 (en) 2000-10-19 2004-10-19 General Electric Company Assembly for mounting a motor operator on a circuit breaker
US6531941B1 (en) 2000-10-19 2003-03-11 General Electric Company Clip for a conductor in a rotary breaker
US6429760B1 (en) 2000-10-19 2002-08-06 General Electric Company Cross bar for a conductor in a rotary breaker
US6380829B1 (en) 2000-11-21 2002-04-30 General Electric Company Motor operator interlock and method for circuit breakers
US6448522B1 (en) 2001-01-30 2002-09-10 General Electric Company Compact high speed motor operator for a circuit breaker
US6476337B2 (en) 2001-02-26 2002-11-05 General Electric Company Auxiliary switch actuation arrangement
US6678135B2 (en) 2001-09-12 2004-01-13 General Electric Company Module plug for an electronic trip unit
US6469882B1 (en) 2001-10-31 2002-10-22 General Electric Company Current transformer initial condition correction
US6804101B2 (en) 2001-11-06 2004-10-12 General Electric Company Digital rating plug for electronic trip unit in circuit breakers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD63559A (xx) *
DE1723189U (de) * 1955-04-14 1956-05-30 Berker Und Fa Albrecht Jung Ge Schutzvorrichtung fuer den pruefstromkreis von schutzschaltern u. dgl.
DE1142946B (de) * 1961-07-01 1963-01-31 Busch Jaeger Duerener Metall Elektrischer Beruehrungsschutzschalter fuer den wahlweisen Anschluss von Netz und Verbraucher
DE2115034B2 (de) * 1971-03-29 1977-07-21 Brown, Boveri & Cie Ag, 6800 Mannheim Schutzschalter mit ueberstrom-, kurzschluss- und fehlerstromschutz
DE7126143U (de) * 1971-07-08 1971-11-04 Bbc Ag Elektrischer Schutzschalter mit Prüfvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200083013A1 (en) * 2018-09-06 2020-03-12 Carling Technologies, Inc. Circuit Breaker With Slide To Test Function
US10692678B2 (en) * 2018-09-06 2020-06-23 Carling Technologies, Inc. Circuit breaker with slide to test function

Also Published As

Publication number Publication date
IT1016821B (it) 1977-06-20
FR2241868B1 (xx) 1976-06-18
FR2241868A1 (xx) 1975-03-21
NL7410954A (nl) 1975-02-24
CH589939A5 (xx) 1977-07-29
DE2438314C2 (de) 1985-01-17
DE2438314A1 (de) 1975-03-06
BE819008A (fr) 1974-12-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee