IT1073771B - Perfezionamento nei circuiti elettrici di sicurezza - Google Patents

Perfezionamento nei circuiti elettrici di sicurezza

Info

Publication number
IT1073771B
IT1073771B IT5211176A IT5211176A IT1073771B IT 1073771 B IT1073771 B IT 1073771B IT 5211176 A IT5211176 A IT 5211176A IT 5211176 A IT5211176 A IT 5211176A IT 1073771 B IT1073771 B IT 1073771B
Authority
IT
Italy
Prior art keywords
improvement
electrical safety
safety circuits
circuits
electrical
Prior art date
Application number
IT5211176A
Other languages
English (en)
Original Assignee
Black & Decker Ltd
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 Black & Decker Ltd filed Critical Black & Decker Ltd
Application granted granted Critical
Publication of IT1073771B publication Critical patent/IT1073771B/it

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
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • 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)
  • Emergency Protection Circuit Devices (AREA)
  • Coils Or Transformers For Communication (AREA)
IT5211176A 1975-11-10 1976-11-10 Perfezionamento nei circuiti elettrici di sicurezza IT1073771B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4633175 1975-11-10

Publications (1)

Publication Number Publication Date
IT1073771B true IT1073771B (it) 1985-04-17

Family

ID=10440810

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5211176A IT1073771B (it) 1975-11-10 1976-11-10 Perfezionamento nei circuiti elettrici di sicurezza

Country Status (3)

Country Link
DE (1) DE2651245A1 (it)
FR (1) FR2331181A1 (it)
IT (1) IT1073771B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2924122C2 (de) * 1979-06-15 1984-07-05 Kommanditgesellschaft Ritz Messwandler Gmbh & Co, 2000 Hamburg Elektronische Fehlerstrom-Schutzeinrichtung
DE3048785A1 (de) * 1980-12-23 1982-07-15 Brown, Boveri & Cie Ag, 6800 Mannheim Schaltungsanordnung zur erfassung eines fehlerstromes
FR2520165B1 (fr) * 1982-01-18 1986-02-07 Claude Sa Interrupteur differentiel a usage domestique
DE3315190A1 (de) * 1983-04-27 1984-10-31 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Ausloesesystem fuer schutzschalter, insbesondere fuer fehlerstrom-schutzschalter
DE3409603A1 (de) * 1984-03-15 1985-09-19 Siemens AG, 1000 Berlin und 8000 München Fehlerstromschutzschalter

Also Published As

Publication number Publication date
DE2651245A1 (de) 1977-05-18
FR2331181A1 (fr) 1977-06-03
FR2331181B3 (it) 1979-07-27

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