GB1240035A - Electric circuit breaker - Google Patents

Electric circuit breaker

Info

Publication number
GB1240035A
GB1240035A GB2914/69A GB291469A GB1240035A GB 1240035 A GB1240035 A GB 1240035A GB 2914/69 A GB2914/69 A GB 2914/69A GB 291469 A GB291469 A GB 291469A GB 1240035 A GB1240035 A GB 1240035A
Authority
GB
United Kingdom
Prior art keywords
jan
charge
current
circuits
currents
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
GB2914/69A
Inventor
Noroimi Miyoshi
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Manufacturing 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 Fuji Electric Co Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Publication of GB1240035A publication Critical patent/GB1240035A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/106—Adaptation for built-in fuses fuse and switch being connected in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/006—Opening by severing a conductor
    • 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
    • H02H3/02—Details
    • H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
    • 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
    • H02H3/08—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 excess current

Abstract

1,240,035. Protective arrangements; electric cut-outs. FUJI DENKI SEIZO K.K. 17 Jan., 1969 [20 Jan., 1968; 31 Jan., 1968], No. 2914/69. Headings H2G and H2K. A protective arrangement comprises a circuit opening device 9 with a current conducting member 11 which may be ruptured by an electrically-ignitable explosive charge 13 connected to an ignition circuit including a current transformer 21 having its primary winding connected in series with the device 9. A fuse 6 may be connected in parallel with the device 9. When the charge 13 is fired, the member 11 is broken at a shoulder 11a of small cross-section and the part 11c is driven into a connecting terminal member 12. The member 12 is shaped so as to deform the end of the part 11c into a groove 18 where it is retained. A cavity 11d containing the charge 13 is filled with an arcextinguishing medium 14, e.g. silicone grease, petroleum oil or powder. Various ignition circuits are described and shown, these circuits being arranged so that protection is effected in the event of excess currents or a high rate of rise of the current or to reverse currents and a time delay may be provided.
GB2914/69A 1968-01-20 1969-01-17 Electric circuit breaker Expired GB1240035A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP318368 1968-01-20
JP619368 1968-01-31
DE1904244A DE1904244C3 (en) 1968-01-20 1969-01-29 Switching device arranged in the course of a high-voltage conductor

Publications (1)

Publication Number Publication Date
GB1240035A true GB1240035A (en) 1971-07-21

Family

ID=27181757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2914/69A Expired GB1240035A (en) 1968-01-20 1969-01-17 Electric circuit breaker

Country Status (3)

Country Link
US (1) US3700970A (en)
DE (1) DE1904244C3 (en)
GB (1) GB1240035A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263367A (en) * 1992-01-15 1993-07-21 Gen Electric Apparatus for triggering chemically augmented electrical fuses

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275431A (en) * 1978-02-27 1981-06-23 Westinghouse Electric Corp. High-voltage single-shot circuit-protecting device with fuse-like characteristics and having a chemical operating mechanism
DE2905747A1 (en) * 1979-01-25 1980-08-07 Bbc Brown Boveri & Cie CURRENT LIMITATION DEVICE FOR HIGH VOLTAGE SWITCHGEAR
DE2909252A1 (en) * 1979-02-15 1980-08-28 Bbc Brown Boveri & Cie POWER SWITCH
US4342978A (en) * 1979-03-19 1982-08-03 S&C Electric Company Explosively-actuated switch and current limiting, high voltage fuse using same
DE2915373C2 (en) * 1979-04-14 1985-08-01 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Device for the rapid interruption of short-circuit currents
FR2471662A1 (en) * 1979-12-12 1981-06-19 Ferraz & Cie Lucien IMPROVEMENTS IN PYROTECHNIC DESTRUCIBLE-CONDUCTIVE CUTTING DEVICES WITH FUSE-IN-LEFT SYSTEM
US4597025A (en) * 1980-07-10 1986-06-24 Eaton Corporation Minimum size, integral, A.C. overload current sensing, remote power controller
US4434415A (en) * 1982-11-05 1984-02-28 S&C Electric Company Electrical control module for a current-limiting fuse
US4920446A (en) * 1986-04-18 1990-04-24 G & W Electric Co. Pyrotechnically-assisted current interrupter
CA1266289A (en) * 1986-04-18 1990-02-27 Herbert M. Pflanz Pyrotechnically-assisted current interrupter
DE4422249A1 (en) 1994-06-24 1996-02-15 Temic Bayern Chem Airbag Gmbh Device for interrupting the current flow in the ground cable of a motor vehicle battery
DE4422177A1 (en) * 1994-06-28 1996-01-04 Dynamit Nobel Ag High-voltage pyrotechnic fuse element
DE19528918A1 (en) * 1995-08-07 1997-02-13 Rainer Dipl Phys Berthold Earth leakage circuit breaker with automatic monitoring function - compares measured fault current response threshold and response time with stored values to operate alarm or open main current contacts
US5990572A (en) * 1997-02-28 1999-11-23 Harness System Technologies Research, Ltd. Electric circuit breaker for vehicle
SE9702335D0 (en) * 1997-06-18 1997-06-18 Asea Brown Boveri Current limiting device and protection against faults in a current
JP4118964B2 (en) * 1998-03-18 2008-07-16 新電元工業株式会社 Arc extinguishing circuit and arc extinguishing method
DE10052545A1 (en) * 2000-10-23 2002-05-02 Peter Lell Pyrotechnic security element
DE10345502A1 (en) * 2003-09-30 2005-06-02 Siemens Ag Drive for a switching device
DE102008044774A1 (en) * 2008-08-28 2009-10-15 Audi Ag Motor vehicle e.g. car, has crash sensor for generating breaker signal, and electric power source and electrical load that are electrically connected via safety fuse that is parallel connected to pyrotechnic fuse
DE102010035684A1 (en) 2010-08-27 2012-03-01 Auto-Kabel Managementgesellschaft Mbh Electric disconnecting device and method for electrically disconnecting connecting parts by means of a separating device
DE102017203851B4 (en) * 2016-11-28 2018-06-14 Volkswagen Aktiengesellschaft Electrical fuse, method of operating an electrical fuse and electric traction network
US10971275B2 (en) * 2018-10-31 2021-04-06 Ge-Hitachi Nuclear Energy Americas Llc Passive electrical component for safety system shutdown using Ampere's Law
DE102019210234B3 (en) 2019-05-09 2020-10-15 Dehn Se + Co Kg Lightning protection spark gap arrangement and method for operating a lightning protection spark gap arrangement
GB2595313A (en) * 2020-05-14 2021-11-24 Eaton Intelligent Power Ltd Disconnect device with magnetic switch

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1304236A (en) * 1919-05-20 wordingham
US1147448A (en) * 1912-02-19 1915-07-20 Edmund O Schweitzer Fuse device.
US2023070A (en) * 1932-06-10 1935-12-03 Westinghouse Electric & Mfg Co Protective system
DE1097016B (en) * 1955-01-15 1961-01-12 Calor Emag Elektrizitaets Ag Device for the rapid interruption of short-circuit currents
FR1267270A (en) * 1960-06-09 1961-07-21 Electronique Et D Automatique Control device for a protection relay for an electrical power supply circuit
US3202902A (en) * 1962-01-10 1965-08-24 Floyd M Glass Transistorized regulated high voltage supply
US3118986A (en) * 1962-04-23 1964-01-21 Henry W Lewis Explosive actuated circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263367A (en) * 1992-01-15 1993-07-21 Gen Electric Apparatus for triggering chemically augmented electrical fuses
US5406438A (en) * 1992-01-15 1995-04-11 General Electric Company Apparatus for triggering chemically augmented electrical fuses
GB2263367B (en) * 1992-01-15 1996-01-24 Gen Electric Apparatus for triggering chemically augmented electrical fuses

Also Published As

Publication number Publication date
DE1904244A1 (en) 1970-08-06
DE1904244C3 (en) 1980-01-10
DE1904244B2 (en) 1975-06-26
US3700970A (en) 1972-10-24

Similar Documents

Publication Publication Date Title
GB1240035A (en) Electric circuit breaker
US1795972A (en) Charging device for electrical fuses
GB788208A (en) Improvements in devices for interrupting electric currents by explosive means
GB1197299A (en) Improvements in Short-Circuiting Means for Current Transformers
GB1486448A (en) Low voltage protection network
GB1256780A (en)
GB1128572A (en) Electric fuse arrangements
GB1115467A (en) Improvements in or relating to electrical circuit protection devices
GB927169A (en) Improvements in or relating to high speed current cut-off devices
US2408124A (en) Means for safeguarding electric igniters of blasting detonators against accidental firing
US3524408A (en) Electrostatic discharge dissipator for a heater bridgewire circuit of an electro-explosive device
GB987386A (en) Current limiting fuse with a striker pin
ES356407A1 (en) Circuit breaker having improved flashover characteristics
GB1020997A (en) Protective device for use in transistorised circuits
GB936537A (en) Multi-contact short circuit fuse
GB860473A (en) Insulating socket for connecting electrical conductors
GB555969A (en) Improvements in means for safeguarding electric igniters of blasting detonators against accidental firing
US1918594A (en) Electrically ignited torpedo
GB1232339A (en)
GB1200706A (en) Circuit interrupter of the dual bore type
GB947831A (en) Electrical delay blasting device
FR2269181A1 (en) Combustion engine spark-plug cut-out - has plunger to separate tags and to interrupt or earth circuit
GB568373A (en) Improvements in and relating to electrical circuit opening devices
FR2382787A1 (en) Transmission line overvoltage protection circuit - uses threshold device to control fuse ignition
GB904646A (en) Electric blasting cap