ZA754168B - Portable ground fault circuit interrupter - Google Patents

Portable ground fault circuit interrupter

Info

Publication number
ZA754168B
ZA754168B ZA00754168A ZA754168A ZA754168B ZA 754168 B ZA754168 B ZA 754168B ZA 00754168 A ZA00754168 A ZA 00754168A ZA 754168 A ZA754168 A ZA 754168A ZA 754168 B ZA754168 B ZA 754168B
Authority
ZA
South Africa
Prior art keywords
ground fault
circuit interrupter
fault circuit
portable ground
portable
Prior art date
Application number
ZA00754168A
Inventor
R Dietz
H Zylstra
Original Assignee
Square D Co
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 Square D Co filed Critical Square D Co
Publication of ZA754168B publication Critical patent/ZA754168B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • 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)
ZA00754168A 1974-07-05 1975-06-30 Portable ground fault circuit interrupter ZA754168B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48604574A 1974-07-05 1974-07-05

Publications (1)

Publication Number Publication Date
ZA754168B true ZA754168B (en) 1976-06-30

Family

ID=23930390

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00754168A ZA754168B (en) 1974-07-05 1975-06-30 Portable ground fault circuit interrupter

Country Status (6)

Country Link
CA (1) CA1058739A (en)
DE (1) DE2529713A1 (en)
FR (1) FR2277429A1 (en)
GB (1) GB1521082A (en)
IT (1) IT1036450B (en)
ZA (1) ZA754168B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144516A (en) * 1991-02-04 1992-09-01 Wing Shing Products Company, Ltd. Leakage current circuit interrupter device
NO304860B1 (en) * 1991-07-22 1999-02-22 Pdl Holdings Ltd A switching mechanism

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555360A (en) * 1969-03-20 1971-01-12 Hubbell Inc Harvey Phase controlled ground fault circuit interrupter

Also Published As

Publication number Publication date
FR2277429A1 (en) 1976-01-30
GB1521082A (en) 1978-08-09
FR2277429B1 (en) 1981-05-29
IT1036450B (en) 1979-10-30
CA1058739A (en) 1979-07-17
DE2529713A1 (en) 1976-01-22
DE2529713C2 (en) 1987-10-22

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