CA968452A - Ground fault interrupter apparatus with means for detecting a grounded neutral condition - Google Patents

Ground fault interrupter apparatus with means for detecting a grounded neutral condition

Info

Publication number
CA968452A
CA968452A CA140,696A CA140696A CA968452A CA 968452 A CA968452 A CA 968452A CA 140696 A CA140696 A CA 140696A CA 968452 A CA968452 A CA 968452A
Authority
CA
Canada
Prior art keywords
detecting
ground fault
neutral condition
fault interrupter
grounded neutral
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA140,696A
Other versions
CA140696S (en
Inventor
Kenneth R. Coley
John J. Misencik
John R. Reeves
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
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
Application granted granted Critical
Publication of CA968452A publication Critical patent/CA968452A/en
Expired legal-status Critical Current

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)
CA140,696A 1971-06-30 1972-04-27 Ground fault interrupter apparatus with means for detecting a grounded neutral condition Expired CA968452A (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
CA968452A true CA968452A (en) 1975-05-27

Family

ID=22567662

Family Applications (1)

Application Number Title Priority Date Filing Date
CA140,696A Expired CA968452A (en) 1971-06-30 1972-04-27 Ground fault interrupter apparatus with means for detecting a grounded neutral condition

Country Status (5)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59107041D1 (en) * 1991-09-24 1996-01-18 Siemens Ag Protective device for protective measures against fault currents.
DE19813568C1 (en) * 1998-03-27 1999-12-09 Bosch Gmbh Robert Device for fastening elements to a wire grid

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 (en) 1982-09-09
ZA723226B (en) 1973-03-28
DE2231432A1 (en) 1973-01-18
CH543175A (en) 1973-10-15
AT311468B (en) 1973-11-26

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