IT1149680B - SAFETY SWITCH AGAINST FAULT CURRENTS - Google Patents

SAFETY SWITCH AGAINST FAULT CURRENTS

Info

Publication number
IT1149680B
IT1149680B IT19835/82A IT1983582A IT1149680B IT 1149680 B IT1149680 B IT 1149680B IT 19835/82 A IT19835/82 A IT 19835/82A IT 1983582 A IT1983582 A IT 1983582A IT 1149680 B IT1149680 B IT 1149680B
Authority
IT
Italy
Prior art keywords
safety switch
fault currents
switch against
against fault
currents
Prior art date
Application number
IT19835/82A
Other languages
Italian (it)
Other versions
IT8219835A0 (en
Inventor
Helmut Heindorf
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of IT8219835A0 publication Critical patent/IT8219835A0/en
Application granted granted Critical
Publication of IT1149680B publication Critical patent/IT1149680B/en

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
    • H02H3/26—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
    • 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
    • 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
    • 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
    • H02H3/006—Calibration or setting of parameters
IT19835/82A 1981-02-25 1982-02-24 SAFETY SWITCH AGAINST FAULT CURRENTS IT1149680B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813106960 DE3106960A1 (en) 1981-02-25 1981-02-25 Residual current device

Publications (2)

Publication Number Publication Date
IT8219835A0 IT8219835A0 (en) 1982-02-24
IT1149680B true IT1149680B (en) 1986-12-03

Family

ID=6125668

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19835/82A IT1149680B (en) 1981-02-25 1982-02-24 SAFETY SWITCH AGAINST FAULT CURRENTS

Country Status (3)

Country Link
DE (1) DE3106960A1 (en)
FR (1) FR2500682A1 (en)
IT (1) IT1149680B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT378444B (en) * 1983-02-24 1985-08-12 Biegelmeier Gottfried CIRCUIT BREAKER WITH A NEUTRAL CONDUCTOR AND FAULT CURRENT TRIP
FR2548841B1 (en) * 1983-07-07 1986-02-21 Merlin Gerin ELECTRONIC TRIGGER FOR DIFFERENTIAL CIRCUIT BREAKER EQUIPPED WITH A TRIGGER INDICATOR
DE4432643B4 (en) * 1994-09-14 2005-12-01 Aeg Niederspannungstechnik Gmbh & Co Kg Contact arrangement for a residual current circuit breaker
DE102005034645B4 (en) * 2005-07-25 2007-08-02 Siemens Ag Residual current circuit breaker for different operating frequencies

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE683966C (en) * 1937-11-12 1939-11-20 Berker Geb Electric switch with fault current release, especially as protection against contact
CH495627A (en) * 1970-08-04 1970-08-31 Carl Maier & Cie Elek Sche Sch Residual current circuit breaker
DE2043007A1 (en) * 1970-08-29 1972-03-02 Siemens Ag Residual current circuit breaker
IT1088165B (en) * 1977-10-31 1985-06-10 Elettrocondutture SAFETY DEVICE FOR ELECTRICAL SYSTEMS, OF THE DIFFERENTIAL TRANSFORMER TYPE WITH RELEASE
DE2825442A1 (en) * 1978-06-09 1979-12-13 Lauerer Friedrich Faulty current protective circuit breaker - has varistors inside housing coupled to PTC resistors and has externally controllable connection to neutral conductor
DE2938971A1 (en) * 1979-09-26 1981-04-09 Siemens AG, 1000 Berlin und 8000 München Fault current protection switch with pre-magnetized core

Also Published As

Publication number Publication date
DE3106960A1 (en) 1982-09-09
IT8219835A0 (en) 1982-02-24
FR2500682A1 (en) 1982-08-27
FR2500682B3 (en) 1983-12-16

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