GB1255401A - Improvements relating to circuit-breaker tripping means - Google Patents

Improvements relating to circuit-breaker tripping means

Info

Publication number
GB1255401A
GB1255401A GB2325069A GB2325069A GB1255401A GB 1255401 A GB1255401 A GB 1255401A GB 2325069 A GB2325069 A GB 2325069A GB 2325069 A GB2325069 A GB 2325069A GB 1255401 A GB1255401 A GB 1255401A
Authority
GB
United Kingdom
Prior art keywords
circuit
trip coil
breaker
improvements relating
breaker 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
GB2325069A
Inventor
George Francis Chrisp
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and Co 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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB2325069A priority Critical patent/GB1255401A/en
Publication of GB1255401A publication Critical patent/GB1255401A/en
Expired 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
    • H02H7/22—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 for distribution gear, e.g. bus-bar systems; for switching devices
    • H02H7/222—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 for distribution gear, e.g. bus-bar systems; for switching devices for switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • H01F38/023—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/121—Protection of release mechanisms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H02H9/021—Current limitation using saturable reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Breakers (AREA)

Abstract

1,255,401. Protective arrangements. A. REYROLLE & CO. Ltd. 31 July, 1970 [7 May, 1969], No. 23250/69. Heading H2K. An A.C. tripping circuit for a circuit-breaker 10, e.g. in a 250 MVA 11 kV A.C. system, comprises an A.C. trip coil 12 in series in the line protected by the circuit-breaker, and a saturable reactor 13 in parallel with the trip coil 12 to protect the latter from damage by fault currents. The reactor may comprise a stack of insulated laminations of annular form surrounding a single straight bar conductor clamped alongside the trip coil.
GB2325069A 1969-05-07 1969-05-07 Improvements relating to circuit-breaker tripping means Expired GB1255401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2325069A GB1255401A (en) 1969-05-07 1969-05-07 Improvements relating to circuit-breaker tripping means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2325069A GB1255401A (en) 1969-05-07 1969-05-07 Improvements relating to circuit-breaker tripping means

Publications (1)

Publication Number Publication Date
GB1255401A true GB1255401A (en) 1971-12-01

Family

ID=10192614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2325069A Expired GB1255401A (en) 1969-05-07 1969-05-07 Improvements relating to circuit-breaker tripping means

Country Status (1)

Country Link
GB (1) GB1255401A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330621A2 (en) * 1988-02-24 1989-08-30 Maier, Franz Dipl.-Ing. Dr. techn. Current-limiting device
WO1993004569A1 (en) * 1991-08-23 1993-03-04 Robert Bosch Gmbh Device for operating a gas-discharge lamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0330621A2 (en) * 1988-02-24 1989-08-30 Maier, Franz Dipl.-Ing. Dr. techn. Current-limiting device
EP0330621A3 (en) * 1988-02-24 1990-07-18 Maier, Franz Dipl.-Ing. Dr. techn. Current-limiting device
WO1993004569A1 (en) * 1991-08-23 1993-03-04 Robert Bosch Gmbh Device for operating a gas-discharge lamp
AU662755B2 (en) * 1991-08-23 1995-09-14 Robert Bosch Gmbh Device for operating a gas-discharge lamp
US5506479A (en) * 1991-08-23 1996-04-09 Robert Bosch Gmbh Device for operating a gas-discharge lamp

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