GB981892A - Earth fault circuit-breaker - Google Patents

Earth fault circuit-breaker

Info

Publication number
GB981892A
GB981892A GB17633/61A GB1763361A GB981892A GB 981892 A GB981892 A GB 981892A GB 17633/61 A GB17633/61 A GB 17633/61A GB 1763361 A GB1763361 A GB 1763361A GB 981892 A GB981892 A GB 981892A
Authority
GB
United Kingdom
Prior art keywords
earth
electromagnet
breaker
earth fault
fault circuit
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
GB17633/61A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB981892A publication Critical patent/GB981892A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/167—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 fault current to earth, frame or mass combined with other earth-fault protective arrangements
    • 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
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • 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
    • H02H3/14—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 occurrence of voltage on parts normally at earth potential
    • 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
    • H02H3/34—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 of a three-phase system
    • H02H3/347—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 of a three-phase system using summation current transformers

Abstract

981,892. Protective arrangements; automatic circuit-breakers. E. SCHRACK. May 15, 1961 [July 7, 1960], No. 17633/61. Headings H2B and H2K. A protective arrangement comprises a circuitbreaker 2 having a latch 1 which may be released by an electromagnet 4 energized in accordance with the earth fault current derived from a core-balance transformer 3, or by an electromagnet 7 responsive to the voltage to earth of a neutral conductor 0 or any other fault voltage to earth. A variable resistor 8 may be connected between the conductor 0 and the coil of the electromagnet 7. A test switch 6 in series with a resistor 5 may be connected as shown.
GB17633/61A 1960-07-07 1961-05-15 Earth fault circuit-breaker Expired GB981892A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT523860A AT216609B (en) 1960-07-07 1960-07-07 Residual current circuit breaker

Publications (1)

Publication Number Publication Date
GB981892A true GB981892A (en) 1965-01-27

Family

ID=3573520

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17633/61A Expired GB981892A (en) 1960-07-07 1961-05-15 Earth fault circuit-breaker

Country Status (6)

Country Link
AT (1) AT216609B (en)
BE (1) BE605451A (en)
CH (1) CH389758A (en)
DE (1) DE1161632B (en)
FR (1) FR1291373A (en)
GB (1) GB981892A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135542A (en) * 1983-02-19 1984-08-30 Ashley Accessories Ltd Earth leakage circuit breaker
GB2150374A (en) * 1983-12-08 1985-06-26 Ashley Accessories Ltd Fault detection circuitry
GB2152775A (en) * 1983-11-28 1985-08-07 B & R Electrical Prod Ltd Reversed conductors auto-tripping system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199218B1 (en) * 1972-09-08 1975-03-07 Telemecanique Electrique
DE3247650A1 (en) * 1982-12-23 1984-06-28 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Protective-earth conductor contact monitor for a plug-in, mobile protection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB648207A (en) * 1948-12-16 1951-01-03 British Insulated Callenders Improvements in protective devices for electric circuits
DE1053080B (en) * 1955-02-04 1959-03-19 Felten & Guilleaume Carlswerk Residual current circuit breaker
AT201698B (en) * 1957-03-02 1959-01-10 Biegelmeier Gottfried Station protection circuit with fault voltage impulse release

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135542A (en) * 1983-02-19 1984-08-30 Ashley Accessories Ltd Earth leakage circuit breaker
GB2152775A (en) * 1983-11-28 1985-08-07 B & R Electrical Prod Ltd Reversed conductors auto-tripping system
GB2150374A (en) * 1983-12-08 1985-06-26 Ashley Accessories Ltd Fault detection circuitry

Also Published As

Publication number Publication date
BE605451A (en) 1961-10-16
AT216609B (en) 1961-08-10
DE1161632B (en) 1964-01-23
FR1291373A (en) 1962-04-20
CH389758A (en) 1965-03-31

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