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GB2247119B - Traction system earth fault protection - Google Patents

Traction system earth fault protection

Info

Publication number
GB2247119B
GB2247119B GB9115830A GB9115830A GB2247119B GB 2247119 B GB2247119 B GB 2247119B GB 9115830 A GB9115830 A GB 9115830A GB 9115830 A GB9115830 A GB 9115830A GB 2247119 B GB2247119 B GB 2247119B
Authority
GB
United Kingdom
Prior art keywords
earth fault
traction system
fault protection
system earth
traction
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
GB9115830A
Other versions
GB2247119A (en
GB9115830D0 (en
Inventor
Michael Antony Martin
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of GB9115830D0 publication Critical patent/GB9115830D0/en
Publication of GB2247119A publication Critical patent/GB2247119A/en
Application granted granted Critical
Publication of GB2247119B publication Critical patent/GB2247119B/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
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems
    • 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
GB9115830A 1990-07-27 1991-07-23 Traction system earth fault protection Expired - Fee Related GB2247119B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909016598A GB9016598D0 (en) 1990-07-27 1990-07-27 Traction system earth fault protection

Publications (3)

Publication Number Publication Date
GB9115830D0 GB9115830D0 (en) 1991-09-04
GB2247119A GB2247119A (en) 1992-02-19
GB2247119B true GB2247119B (en) 1994-06-01

Family

ID=10679809

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909016598A Pending GB9016598D0 (en) 1990-07-27 1990-07-27 Traction system earth fault protection
GB9115830A Expired - Fee Related GB2247119B (en) 1990-07-27 1991-07-23 Traction system earth fault protection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909016598A Pending GB9016598D0 (en) 1990-07-27 1990-07-27 Traction system earth fault protection

Country Status (1)

Country Link
GB (2) GB9016598D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317278A (en) * 1996-09-11 1998-03-18 Cegelec Controls Ltd Apparatus and method for monitoring an earth-leakage state of a power distribution system
CN103311910B (en) * 2013-05-29 2015-08-19 西南交通大学 A kind of DC traction power-supply system and guard method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1255795A (en) * 1968-04-24 1971-12-01 Servodan As Earth leakage protection devices
US4530024A (en) * 1981-06-23 1985-07-16 The United States Of America As Represented By The Secretary Of The Navy Computer-controlled system for protecting electric circuits
EP0157054A1 (en) * 1984-01-23 1985-10-09 Duraplug Electricals Limited Residual current circuit breaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1255795A (en) * 1968-04-24 1971-12-01 Servodan As Earth leakage protection devices
US4530024A (en) * 1981-06-23 1985-07-16 The United States Of America As Represented By The Secretary Of The Navy Computer-controlled system for protecting electric circuits
EP0157054A1 (en) * 1984-01-23 1985-10-09 Duraplug Electricals Limited Residual current circuit breaker

Also Published As

Publication number Publication date
GB2247119A (en) 1992-02-19
GB9115830D0 (en) 1991-09-04
GB9016598D0 (en) 1990-09-12

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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)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990723