IT1033879B - SAFETY SWITCH FOR FAULT CURRENTS - Google Patents

SAFETY SWITCH FOR FAULT CURRENTS

Info

Publication number
IT1033879B
IT1033879B IT1257175A IT1257175A IT1033879B IT 1033879 B IT1033879 B IT 1033879B IT 1257175 A IT1257175 A IT 1257175A IT 1257175 A IT1257175 A IT 1257175A IT 1033879 B IT1033879 B IT 1033879B
Authority
IT
Italy
Prior art keywords
safety switch
fault currents
currents
fault
safety
Prior art date
Application number
IT1257175A
Other languages
Italian (it)
Original Assignee
Condor Werk Frede Kg Geb
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
Priority claimed from DE19742440047 external-priority patent/DE2440047C2/en
Application filed by Condor Werk Frede Kg Geb filed Critical Condor Werk Frede Kg Geb
Application granted granted Critical
Publication of IT1033879B publication Critical patent/IT1033879B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
    • H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Synchronous Machinery (AREA)
  • Transformers For Measuring Instruments (AREA)
IT1257175A 1974-08-21 1975-04-16 SAFETY SWITCH FOR FAULT CURRENTS IT1033879B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742440047 DE2440047C2 (en) 1974-08-21 Residual current circuit breaker

Publications (1)

Publication Number Publication Date
IT1033879B true IT1033879B (en) 1979-08-10

Family

ID=5923713

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1257175A IT1033879B (en) 1974-08-21 1975-04-16 SAFETY SWITCH FOR FAULT CURRENTS

Country Status (3)

Country Link
ES (1) ES435986A1 (en)
FR (1) FR2282714A1 (en)
IT (1) IT1033879B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR379765A (en) *
DE1113027B (en) * 1960-05-25 1961-08-24 Schutzapp Ges Paris & Co M B H Residual current circuit breaker
US3321725A (en) * 1965-12-16 1967-05-23 Gen Electric Current transformers having multiturn primary windings
FR2030487A5 (en) * 1969-01-30 1970-11-13 Comp Generale Electricite

Also Published As

Publication number Publication date
DE2440047B1 (en) 1975-12-18
ES435986A1 (en) 1976-12-16
FR2282714A1 (en) 1976-03-19
DE2440047A1 (en) 1975-12-18
FR2282714B1 (en) 1978-09-22

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