ZA723226B - An improvement in or relating to ground fault interrupter apparatus with means for detecting a grounded neutral condition - Google Patents

An improvement in or relating to ground fault interrupter apparatus with means for detecting a grounded neutral condition

Info

Publication number
ZA723226B
ZA723226B ZA723226A ZA723226A ZA723226B ZA 723226 B ZA723226 B ZA 723226B ZA 723226 A ZA723226 A ZA 723226A ZA 723226 A ZA723226 A ZA 723226A ZA 723226 B ZA723226 B ZA 723226B
Authority
ZA
South Africa
Prior art keywords
relating
improvement
detecting
ground fault
neutral condition
Prior art date
Application number
ZA723226A
Other languages
English (en)
Inventor
K Coley
J Misencik
J Reeves
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ZA723226B publication Critical patent/ZA723226B/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
    • H02H3/331—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)
  • Emergency Protection Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
ZA723226A 1971-06-30 1972-05-12 An improvement in or relating to ground fault interrupter apparatus with means for detecting a grounded neutral condition ZA723226B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15833771A 1971-06-30 1971-06-30

Publications (1)

Publication Number Publication Date
ZA723226B true ZA723226B (en) 1973-03-28

Family

ID=22567662

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA723226A ZA723226B (en) 1971-06-30 1972-05-12 An improvement in or relating to ground fault interrupter apparatus with means for detecting a grounded neutral condition

Country Status (5)

Country Link
AT (1) AT311468B (de)
CA (1) CA968452A (de)
CH (1) CH543175A (de)
DE (1) DE2231432C2 (de)
ZA (1) ZA723226B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59107041D1 (de) * 1991-09-24 1996-01-18 Siemens Ag Schutzeinrichtung für Schutzmassnahmen gegen Fehlerströme.
DE19813568C1 (de) * 1998-03-27 1999-12-09 Bosch Gmbh Robert Vorrichtung zur Befestigung von Elementen an einem aus Drähten bestehenden Gitter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473091A (en) * 1967-04-14 1969-10-14 Hubbell Inc Harvey Ground leakage differential protective apparatus

Also Published As

Publication number Publication date
DE2231432C2 (de) 1982-09-09
DE2231432A1 (de) 1973-01-18
CA968452A (en) 1975-05-27
CH543175A (de) 1973-10-15
AT311468B (de) 1973-11-26

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