ZA717897B - Improvements in or relating to fault current circuit breakers - Google Patents

Improvements in or relating to fault current circuit breakers

Info

Publication number
ZA717897B
ZA717897B ZA717897A ZA717897A ZA717897B ZA 717897 B ZA717897 B ZA 717897B ZA 717897 A ZA717897 A ZA 717897A ZA 717897 A ZA717897 A ZA 717897A ZA 717897 B ZA717897 B ZA 717897B
Authority
ZA
South Africa
Prior art keywords
relating
current circuit
circuit breakers
fault current
fault
Prior art date
Application number
ZA717897A
Other languages
English (en)
Inventor
R Scherbaum
H Rosch
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of ZA717897B publication Critical patent/ZA717897B/xx

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
    • H02H3/332—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 responsive to DC component in the fault current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Breakers (AREA)
ZA717897A 1970-12-01 1971-11-24 Improvements in or relating to fault current circuit breakers ZA717897B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702059054 DE2059054A1 (de) 1970-12-01 1970-12-01 Fehlerstromschutzschalter

Publications (1)

Publication Number Publication Date
ZA717897B true ZA717897B (en) 1972-08-30

Family

ID=5789636

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA717897A ZA717897B (en) 1970-12-01 1971-11-24 Improvements in or relating to fault current circuit breakers

Country Status (10)

Country Link
JP (1) JPS4728452A (enrdf_load_stackoverflow)
AT (1) AT310852B (enrdf_load_stackoverflow)
BE (1) BE775890A (enrdf_load_stackoverflow)
CH (1) CH532856A (enrdf_load_stackoverflow)
DE (1) DE2059054A1 (enrdf_load_stackoverflow)
ES (1) ES397526A1 (enrdf_load_stackoverflow)
FR (1) FR2116422A1 (enrdf_load_stackoverflow)
GB (1) GB1371654A (enrdf_load_stackoverflow)
IT (1) IT941390B (enrdf_load_stackoverflow)
ZA (1) ZA717897B (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5638728B2 (enrdf_load_stackoverflow) * 1973-07-04 1981-09-08
JPS5035912A (enrdf_load_stackoverflow) * 1973-08-01 1975-04-04
LU78075A1 (de) * 1977-09-02 1979-04-09 Gath N Fehlerstromschutzschalter
LU79817A1 (de) * 1978-06-15 1980-01-22 N Gath Fehlerstromschutzschalter
DE4215899C1 (de) * 1992-05-14 1993-11-25 Siemens Ag Anordnung zum Erfassen von Differenzströmen
DE4215900C1 (de) * 1992-05-14 1993-12-23 Siemens Ag Anordnung zum Erfassen von Differenzströmen
DE4314539C2 (de) * 1993-05-03 1998-11-05 Siemens Ag Magnetowiderstands-Sensor mit vertikaler Empfindlichkeit und Verwendung des Sensors

Also Published As

Publication number Publication date
JPS4728452A (enrdf_load_stackoverflow) 1972-11-01
AT310852B (de) 1973-10-25
GB1371654A (en) 1974-10-23
FR2116422A1 (enrdf_load_stackoverflow) 1972-07-13
IT941390B (it) 1973-03-01
ES397526A1 (es) 1974-05-16
CH532856A (de) 1973-01-15
DE2059054A1 (de) 1972-06-08
BE775890A (fr) 1972-05-26

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