GB2305315B - Residual current devices - Google Patents

Residual current devices

Info

Publication number
GB2305315B
GB2305315B GB9518927A GB9518927A GB2305315B GB 2305315 B GB2305315 B GB 2305315B GB 9518927 A GB9518927 A GB 9518927A GB 9518927 A GB9518927 A GB 9518927A GB 2305315 B GB2305315 B GB 2305315B
Authority
GB
United Kingdom
Prior art keywords
residual current
current devices
devices
residual
current
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 - Lifetime
Application number
GB9518927A
Other versions
GB9518927D0 (en
GB2305315A (en
Inventor
Paul Michael Weaver
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.)
Crabtree Electrical Industries Ltd
Original Assignee
Crabtree Electrical Industries Ltd
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 Crabtree Electrical Industries Ltd filed Critical Crabtree Electrical Industries Ltd
Priority to GB9518927A priority Critical patent/GB2305315B/en
Publication of GB9518927D0 publication Critical patent/GB9518927D0/en
Publication of GB2305315A publication Critical patent/GB2305315A/en
Application granted granted Critical
Publication of GB2305315B publication Critical patent/GB2305315B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H02H3/334—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 unbalance 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 unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB9518927A 1995-09-15 1995-09-15 Residual current devices Expired - Lifetime GB2305315B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9518927A GB2305315B (en) 1995-09-15 1995-09-15 Residual current devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9518927A GB2305315B (en) 1995-09-15 1995-09-15 Residual current devices

Publications (3)

Publication Number Publication Date
GB9518927D0 GB9518927D0 (en) 1995-11-15
GB2305315A GB2305315A (en) 1997-04-02
GB2305315B true GB2305315B (en) 1999-05-05

Family

ID=10780791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9518927A Expired - Lifetime GB2305315B (en) 1995-09-15 1995-09-15 Residual current devices

Country Status (1)

Country Link
GB (1) GB2305315B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1009293C2 (en) * 1998-05-29 1999-11-30 Holec Holland Nv Test circuit with time-limited fault current for a protection device.
CN2585242Y (en) * 2002-05-24 2003-11-05 丰叶电器制造厂有限公司 Load overcurrent alarming device and connector overtemperature alarming device
CN103399236B (en) * 2013-08-01 2015-12-02 德力西电气有限公司 A kind of hookup of residual current protecting

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409574A (en) * 1982-01-21 1983-10-11 Westinghouse Electric Corp. Ground fault circuit interrupter with a unified test and reset switch mechanism
GB2292491A (en) * 1994-08-16 1996-02-21 Crabtree Electrical Ind Ltd Residual current device with reset switch and test circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409574A (en) * 1982-01-21 1983-10-11 Westinghouse Electric Corp. Ground fault circuit interrupter with a unified test and reset switch mechanism
GB2292491A (en) * 1994-08-16 1996-02-21 Crabtree Electrical Ind Ltd Residual current device with reset switch and test circuit

Also Published As

Publication number Publication date
GB9518927D0 (en) 1995-11-15
GB2305315A (en) 1997-04-02

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20150914