GB2152775B - Reversed conductors auto-tripping system - Google Patents

Reversed conductors auto-tripping system

Info

Publication number
GB2152775B
GB2152775B GB08429895A GB8429895A GB2152775B GB 2152775 B GB2152775 B GB 2152775B GB 08429895 A GB08429895 A GB 08429895A GB 8429895 A GB8429895 A GB 8429895A GB 2152775 B GB2152775 B GB 2152775B
Authority
GB
United Kingdom
Prior art keywords
conductors
auto
reversed
tripping system
tripping
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
GB08429895A
Other versions
GB2152775A (en
GB8429895D0 (en
Inventor
Douglas Sydney Knights
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.)
B & R Electrical Prod Ltd
Original Assignee
B & R Electrical Prod 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 B & R Electrical Prod Ltd filed Critical B & R Electrical Prod Ltd
Publication of GB8429895D0 publication Critical patent/GB8429895D0/en
Publication of GB2152775A publication Critical patent/GB2152775A/en
Application granted granted Critical
Publication of GB2152775B publication Critical patent/GB2152775B/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
GB08429895A 1983-11-28 1984-11-27 Reversed conductors auto-tripping system Expired GB2152775B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838331724A GB8331724D0 (en) 1983-11-28 1983-11-28 Reverse polarity auto-tripping system

Publications (3)

Publication Number Publication Date
GB8429895D0 GB8429895D0 (en) 1985-01-03
GB2152775A GB2152775A (en) 1985-08-07
GB2152775B true GB2152775B (en) 1986-12-03

Family

ID=10552470

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838331724A Pending GB8331724D0 (en) 1983-11-28 1983-11-28 Reverse polarity auto-tripping system
GB08429895A Expired GB2152775B (en) 1983-11-28 1984-11-27 Reversed conductors auto-tripping system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838331724A Pending GB8331724D0 (en) 1983-11-28 1983-11-28 Reverse polarity auto-tripping system

Country Status (1)

Country Link
GB (2) GB8331724D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162003B (en) * 1984-05-05 1988-03-02 Ashley Accessories Ltd Earth leakage circuit breakers
US4598331A (en) * 1984-07-30 1986-07-01 Technology Research Corporation Ground fault current interrupter circuit with open neutral and ground lead protection
DE3604118A1 (en) * 1986-02-10 1987-06-11 Robert Birkmeyer PERSONAL PROTECTION CIRCUIT FOR ELECTRICAL DEVICES
IE930293A1 (en) * 1993-04-19 1994-10-19 Shakira Ltd A.C. mains monitoring circuit
JP2992449B2 (en) * 1994-11-15 1999-12-20 松下電工株式会社 Circuit breaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB830018A (en) * 1957-03-13 1960-03-09 Michael Cornelius Gerrard Protective device for electrical circuits and apparatus
GB880238A (en) * 1958-12-16 1961-10-18 Michael Cornelius Gerrard Protective arrangements for electric circuits and apparatus
AT216609B (en) * 1960-07-07 1961-08-10 Eduard Dr Schrack Residual current circuit breaker
GB1107879A (en) * 1964-04-17 1968-03-27 J A Crabtree Proprietary Ltd Improvements in or relating to earth leakage protection devices
AU7680374A (en) * 1974-01-03 1976-06-24 Selke H D Electrical safety device
GB2108339B (en) * 1981-07-07 1985-08-07 Secr Defence Electric protective circuits

Also Published As

Publication number Publication date
GB8331724D0 (en) 1984-01-04
GB2152775A (en) 1985-08-07
GB8429895D0 (en) 1985-01-03

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Legal Events

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

Effective date: 20011127