GB2178916B - Detecting abnormal neutral line conditions in electrical circuits - Google Patents

Detecting abnormal neutral line conditions in electrical circuits

Info

Publication number
GB2178916B
GB2178916B GB8615258A GB8615258A GB2178916B GB 2178916 B GB2178916 B GB 2178916B GB 8615258 A GB8615258 A GB 8615258A GB 8615258 A GB8615258 A GB 8615258A GB 2178916 B GB2178916 B GB 2178916B
Authority
GB
United Kingdom
Prior art keywords
electrical circuits
neutral line
detecting abnormal
line conditions
abnormal neutral
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
GB8615258A
Other versions
GB8615258D0 (en
GB2178916A (en
Inventor
George Arthur Lapinski
Kenneth Philip Parker
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.)
Ashley Accessories Ltd
Original Assignee
Ashley Accessories 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
Priority claimed from GB858515865A external-priority patent/GB8515865D0/en
Application filed by Ashley Accessories Ltd filed Critical Ashley Accessories Ltd
Priority to GB8615258A priority Critical patent/GB2178916B/en
Publication of GB8615258D0 publication Critical patent/GB8615258D0/en
Publication of GB2178916A publication Critical patent/GB2178916A/en
Application granted granted Critical
Publication of GB2178916B publication Critical patent/GB2178916B/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
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/06—Arrangements for supplying operative power

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
GB8615258A 1985-06-22 1986-06-23 Detecting abnormal neutral line conditions in electrical circuits Expired GB2178916B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8615258A GB2178916B (en) 1985-06-22 1986-06-23 Detecting abnormal neutral line conditions in electrical circuits

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858515865A GB8515865D0 (en) 1985-06-22 1985-06-22 Detecting abnormal neutral
GB8615258A GB2178916B (en) 1985-06-22 1986-06-23 Detecting abnormal neutral line conditions in electrical circuits

Publications (3)

Publication Number Publication Date
GB8615258D0 GB8615258D0 (en) 1986-07-30
GB2178916A GB2178916A (en) 1987-02-18
GB2178916B true GB2178916B (en) 1989-09-06

Family

ID=26289408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8615258A Expired GB2178916B (en) 1985-06-22 1986-06-23 Detecting abnormal neutral line conditions in electrical circuits

Country Status (1)

Country Link
GB (1) GB2178916B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE880341L (en) * 1988-02-08 1989-08-08 Patrick Ward Ground fault current interrupter circuit
GB2244398B (en) * 1990-05-25 1994-03-16 Mk Electric Ltd Electrical protection devices
IE64082B1 (en) * 1991-01-17 1995-07-12 Shakira Ltd A C mains monitoring circuit
IE930319A1 (en) * 1993-04-27 1994-11-02 Shakira Ltd Circuit for detecting a faulty mains neutral
CN100470984C (en) * 1999-11-30 2009-03-18 Ge克里普萨尔中国有限公司 Residual current circuit breaker
EP2097961A4 (en) 2006-11-24 2013-11-27 Jemena Asset Man 6 Pty Ltd Power supply monitoring system
CN104426128B (en) * 2013-09-05 2018-01-19 西门子公司 Broken neutral line detects circuit and corresponding residual current circuit breaker
CN203983940U (en) * 2014-05-04 2014-12-03 西门子公司 Earth leakage protective device
FR3059854B1 (en) * 2016-12-02 2020-02-07 Andre Pierronnet LINE CARRIER CURRENT FILTERING SYSTEM INCLUDING AUTOMATIC FAILURE DETECTION.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1107879A (en) * 1964-04-17 1968-03-27 J A Crabtree Proprietary Ltd Improvements in or relating to earth leakage protection devices
EP0154450A1 (en) * 1984-02-23 1985-09-11 Delta Electrical (Holdings) Limited Earth leakage protective circuit
GB2162003A (en) * 1984-05-05 1986-01-22 Ashley Accessories Ltd Earth leakage circuit breakers
GB2162708A (en) * 1984-07-27 1986-02-05 Technology Res Corp Ground fault current interrupter circuit with open neutral and open ground lead protection

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1107879A (en) * 1964-04-17 1968-03-27 J A Crabtree Proprietary Ltd Improvements in or relating to earth leakage protection devices
EP0154450A1 (en) * 1984-02-23 1985-09-11 Delta Electrical (Holdings) Limited Earth leakage protective circuit
GB2162003A (en) * 1984-05-05 1986-01-22 Ashley Accessories Ltd Earth leakage circuit breakers
GB2162708A (en) * 1984-07-27 1986-02-05 Technology Res Corp Ground fault current interrupter circuit with open neutral and open ground lead protection

Also Published As

Publication number Publication date
GB8615258D0 (en) 1986-07-30
GB2178916A (en) 1987-02-18

Similar Documents

Publication Publication Date Title
GB8605343D0 (en) Circuit breaker
GB8605344D0 (en) Circuit breaker
GB2162391B (en) Electric fault detection device
GB2178916B (en) Detecting abnormal neutral line conditions in electrical circuits
GB2176670B (en) Auto-pedestal level clamp circuit
GB2173072B (en) Current measuring circuit
GB2163624B (en) Line condition detection circuit
EP0208292A3 (en) Circuit breaker
EP0207458A3 (en) Circuit breaker
DE3477518D1 (en) Current detecting circuit
GB8601030D0 (en) Circuit breaker
DE3666306D1 (en) Circuit breaker
GB8601031D0 (en) Circuit breaker
GB2177262B (en) Electrical circuits
GB2172472B (en) Constant current line circuit
IL73207A (en) Fault detection circuit for ac loads
GB2172132B (en) Power line continuity monitoring circuit
GB8511592D0 (en) Electrical circuit arrangement
GB2165109B (en) Stop-lamp circuit failure detection system
ZA865195B (en) Circuit breaker
EP0206249A3 (en) Circuit breaker
GB8511496D0 (en) Electrical neutral abnormality detection
GB2169759B (en) Electrical circuit connection system
DE3460190D1 (en) Switch or circuit breaker with contact clamps
GB2172436B (en) Electrical circuit

Legal Events

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