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GB2298095B - Ground fault circuit interrupter - Google Patents

Ground fault circuit interrupter

Info

Publication number
GB2298095B
GB2298095B GB9605949A GB9605949A GB2298095B GB 2298095 B GB2298095 B GB 2298095B GB 9605949 A GB9605949 A GB 9605949A GB 9605949 A GB9605949 A GB 9605949A GB 2298095 B GB2298095 B GB 2298095B
Authority
GB
United Kingdom
Prior art keywords
ground fault
circuit interrupter
fault circuit
interrupter
ground
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 - Fee Related
Application number
GB9605949A
Other versions
GB9605949D0 (en
GB2298095A (en
Inventor
Raymond H Legatti
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.)
Technology Research Corp
Original Assignee
Technology Research 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 Technology Research Corp filed Critical Technology Research Corp
Priority to GB9617829A priority Critical patent/GB2301498B/en
Priority claimed from GB9314619A external-priority patent/GB2269064B/en
Publication of GB9605949D0 publication Critical patent/GB9605949D0/en
Publication of GB2298095A publication Critical patent/GB2298095A/en
Application granted granted Critical
Publication of GB2298095B publication Critical patent/GB2298095B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H02H3/332—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 with means responsive to DC component in the fault current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of DC component by short circuits in AC networks
    • 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
    • H02H3/334—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 with means to produce an artificial imbalance for other protection or monitoring reasons or remote control
    • H02H3/335—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 with means to produce an artificial imbalance for other protection or monitoring reasons or remote control the main function being self testing of the device

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)
GB9605949A 1992-07-22 1993-07-14 Ground fault circuit interrupter Expired - Fee Related GB2298095B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9617829A GB2301498B (en) 1992-07-22 1993-07-14 Ground fault circuit interrupter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91866492A 1992-07-22 1992-07-22
GB9314619A GB2269064B (en) 1992-07-22 1993-07-14 Ground fault circuit interrupter

Publications (3)

Publication Number Publication Date
GB9605949D0 GB9605949D0 (en) 1996-05-22
GB2298095A GB2298095A (en) 1996-08-21
GB2298095B true GB2298095B (en) 1997-01-29

Family

ID=26303241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9605949A Expired - Fee Related GB2298095B (en) 1992-07-22 1993-07-14 Ground fault circuit interrupter

Country Status (1)

Country Link
GB (1) GB2298095B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091431A (en) * 1967-02-13 1978-05-23 Harbey Hubbell, Incorporated Ground leakage relay circuit
GB8404766D0 (en) * 1984-02-23 1984-03-28 Delta Electrical Holdings Earth leakage protective circuit
GB2244397B (en) * 1990-05-25 1994-02-16 Mk Electric Ltd Electrical protection devices
GB2268011B (en) * 1992-06-18 1995-11-29 Shakira Ltd A residual current device

Also Published As

Publication number Publication date
GB9605949D0 (en) 1996-05-22
GB2298095A (en) 1996-08-21

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Legal Events

Date Code Title Description
728V Application for restoration filed (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010714

728Y Application for restoration allowed (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050714