NL7407470A - - Google Patents

Info

Publication number
NL7407470A
NL7407470A NL7407470A NL7407470A NL7407470A NL 7407470 A NL7407470 A NL 7407470A NL 7407470 A NL7407470 A NL 7407470A NL 7407470 A NL7407470 A NL 7407470A NL 7407470 A NL7407470 A NL 7407470A
Authority
NL
Netherlands
Application number
NL7407470A
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 filed Critical
Publication of NL7407470A publication Critical patent/NL7407470A/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
    • H02H3/16—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
    • H02H3/17—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 by means of an auxiliary voltage injected into the installation to be protected
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • H02H3/331—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 responsive to earthing of the neutral conductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
NL7407470A 1973-06-11 1974-06-04 NL7407470A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36866273A 1973-06-11 1973-06-11

Publications (1)

Publication Number Publication Date
NL7407470A true NL7407470A (enrdf_load_stackoverflow) 1974-12-13

Family

ID=23452208

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7407470A NL7407470A (enrdf_load_stackoverflow) 1973-06-11 1974-06-04

Country Status (7)

Country Link
JP (1) JPS5035646A (enrdf_load_stackoverflow)
AU (1) AU6982674A (enrdf_load_stackoverflow)
DE (1) DE2427920A1 (enrdf_load_stackoverflow)
FR (1) FR2232855B1 (enrdf_load_stackoverflow)
IT (1) IT1010294B (enrdf_load_stackoverflow)
NL (1) NL7407470A (enrdf_load_stackoverflow)
SE (1) SE7407451L (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508979C2 (de) * 1975-03-01 1984-07-12 Günter 4800 Bielefeld Reichensperger Anordnung für einen Schutzschalter mit einer Fehlerstrom-Überwachungseinheit und einer Erdungswiderstand-Überwachungseinheit
DE2611674A1 (de) * 1976-03-19 1977-09-22 Guenter Reichensperger Schutzschalter
DE3048785A1 (de) * 1980-12-23 1982-07-15 Brown, Boveri & Cie Ag, 6800 Mannheim Schaltungsanordnung zur erfassung eines fehlerstromes
US7193827B2 (en) * 2003-10-16 2007-03-20 Square D Company Single-sensor microcontroller-based approach for ground fault circuit interrupters

Also Published As

Publication number Publication date
FR2232855B1 (enrdf_load_stackoverflow) 1978-03-24
FR2232855A1 (enrdf_load_stackoverflow) 1975-01-03
SE7407451L (enrdf_load_stackoverflow) 1974-12-12
IT1010294B (it) 1977-01-10
JPS5035646A (enrdf_load_stackoverflow) 1975-04-04
AU6982674A (en) 1975-12-11
DE2427920A1 (de) 1975-01-02

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