GB2162708B - Ground fault current interrupter circuit with open neutral, and ground lead protection - Google Patents

Ground fault current interrupter circuit with open neutral, and ground lead protection

Info

Publication number
GB2162708B
GB2162708B GB08503451A GB8503451A GB2162708B GB 2162708 B GB2162708 B GB 2162708B GB 08503451 A GB08503451 A GB 08503451A GB 8503451 A GB8503451 A GB 8503451A GB 2162708 B GB2162708 B GB 2162708B
Authority
GB
United Kingdom
Prior art keywords
ground
fault current
current interrupter
lead protection
interrupter circuit
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
GB08503451A
Other versions
GB8503451D0 (en
GB2162708A (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
Priority claimed from US06/635,434 external-priority patent/US4579601A/en
Priority claimed from US06/635,459 external-priority patent/US4598331A/en
Application filed by Technology Research Corp filed Critical Technology Research Corp
Publication of GB8503451D0 publication Critical patent/GB8503451D0/en
Publication of GB2162708A publication Critical patent/GB2162708A/en
Application granted granted Critical
Publication of GB2162708B publication Critical patent/GB2162708B/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
    • H02H3/338—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 also responsive to wiring error, e.g. loss of neutral, break
    • 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
    • H02H3/14—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 occurrence of voltage on parts normally at earth potential

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB08503451A 1984-07-27 1985-02-11 Ground fault current interrupter circuit with open neutral, and ground lead protection Expired GB2162708B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/635,434 US4579601A (en) 1983-07-29 1984-07-27 Method of growing a resistive epitaxial layer on a short lifetime epi-layer
US06/635,459 US4598331A (en) 1984-07-30 1984-07-30 Ground fault current interrupter circuit with open neutral and ground lead protection

Publications (3)

Publication Number Publication Date
GB8503451D0 GB8503451D0 (en) 1985-03-13
GB2162708A GB2162708A (en) 1986-02-05
GB2162708B true GB2162708B (en) 1988-12-14

Family

ID=27092378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08503451A Expired GB2162708B (en) 1984-07-27 1985-02-11 Ground fault current interrupter circuit with open neutral, and ground lead protection

Country Status (1)

Country Link
GB (1) GB2162708B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178916B (en) * 1985-06-22 1989-09-06 Ashley Accessories Ltd Detecting abnormal neutral line conditions in electrical circuits
IE880341L (en) * 1988-02-08 1989-08-08 Patrick Ward Ground fault current interrupter circuit
US4933801A (en) * 1989-04-19 1990-06-12 Square D Company Ground fault circuit interrupter
US4994933A (en) * 1989-04-19 1991-02-19 Square D Company Ground fault circuit interrupter having loss of neutral or loss of ground protection
EP0484341B1 (en) * 1989-04-19 1994-12-28 Square D Company A power supply
US4947278A (en) * 1989-06-23 1990-08-07 Smart House Limited Partnership Limited Remote sensing power disconnect circuit
CA2093061C (en) * 1992-07-22 2005-02-15 Raymond H. Legatti Leakage current protection device adapted to a wide variety of domestic and international applications
IES20010272A2 (en) * 2000-03-22 2001-10-03 Shakira Ltd Residual current device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2108339B (en) * 1981-07-07 1985-08-07 Secr Defence Electric protective circuits
GB8332815D0 (en) * 1983-12-08 1984-01-18 Ashley Accessories Ltd Electrical accessories

Also Published As

Publication number Publication date
GB8503451D0 (en) 1985-03-13
GB2162708A (en) 1986-02-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000211