GB2473569A - Circuit breaker - Google Patents

Circuit breaker Download PDF

Info

Publication number
GB2473569A
GB2473569A GB201021403A GB201021403A GB2473569A GB 2473569 A GB2473569 A GB 2473569A GB 201021403 A GB201021403 A GB 201021403A GB 201021403 A GB201021403 A GB 201021403A GB 2473569 A GB2473569 A GB 2473569A
Authority
GB
United Kingdom
Prior art keywords
circuit breaker
operating
threshold
trip
warrant
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.)
Granted
Application number
GB201021403A
Other versions
GB201021403D0 (en
GB2473569B (en
Inventor
Timothy Rupert Charles Jarman
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.)
Qinetiq Ltd
Original Assignee
Qinetiq 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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of GB201021403D0 publication Critical patent/GB201021403D0/en
Publication of GB2473569A publication Critical patent/GB2473569A/en
Application granted granted Critical
Publication of GB2473569B publication Critical patent/GB2473569B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H02H3/08—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
    • H02H3/093—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 with timing means
    • H02H3/0935—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 with timing means the timing being determined by numerical means
    • 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
    • H02H3/093—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 with timing means
    • 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
    • H02H3/006—Calibration or setting of parameters
    • 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
    • H02H3/087—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 for dc applications

Abstract

An electronic circuit breaker including a two stage detection mechanism; an instantaneous trip operating at a first threshold and a delayed trip such operating at a second lower threshold. This is advantageous in maintaining operation during very short transient load peaks, which do not warrant isolation from the supply. The breaker can be line powered, can be reset remotely by controlling the line power, and can be implemented entirely in solid state electronics. As such it requires little or no service or maintenance.
GB201021403A 2008-07-05 2009-07-01 Circuit breaker Expired - Fee Related GB2473569B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0812335A GB0812335D0 (en) 2008-07-05 2008-07-05 Circuit breaker
PCT/GB2009/001650 WO2010004260A1 (en) 2008-07-05 2009-07-01 Circuit breaker

Publications (3)

Publication Number Publication Date
GB201021403D0 GB201021403D0 (en) 2011-01-26
GB2473569A true GB2473569A (en) 2011-03-16
GB2473569B GB2473569B (en) 2013-02-27

Family

ID=39718036

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0812335A Ceased GB0812335D0 (en) 2008-07-05 2008-07-05 Circuit breaker
GB201021403A Expired - Fee Related GB2473569B (en) 2008-07-05 2009-07-01 Circuit breaker

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0812335A Ceased GB0812335D0 (en) 2008-07-05 2008-07-05 Circuit breaker

Country Status (4)

Country Link
US (1) US8810986B2 (en)
EP (1) EP2301126A1 (en)
GB (2) GB0812335D0 (en)
WO (1) WO2010004260A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9343880B2 (en) * 2012-04-28 2016-05-17 Schneider Electric Industries Sas Modular subsea electrical distribution system having subsea cable harness assembly and method for assembling same
US11165242B2 (en) 2015-12-18 2021-11-02 Hewlett Packard Enterprise Development Lp Variable soft start device for an electronic fuse
DE102016207014A1 (en) * 2016-04-26 2017-10-26 Robert Bosch Gmbh Electronic fuse for a vehicle
CN107437888B (en) * 2016-05-26 2019-11-01 登丰微电子股份有限公司 Power switch circuit and applied power circuit
DE102016210058A1 (en) 2016-06-08 2017-12-14 Robert Bosch Gmbh Power distributor and safety system for a vehicle
WO2018158793A1 (en) * 2017-02-28 2018-09-07 三菱電機株式会社 Electronic circuit breaker
US20210072303A1 (en) * 2017-06-16 2021-03-11 Florida Power & Light Company Power distribution fault location estimation using transient analysis
WO2019234927A1 (en) * 2018-06-08 2019-12-12 三菱電機株式会社 Electronic circuit breaker
CN110752580B (en) * 2018-07-23 2021-06-01 中国科学院沈阳自动化研究所 Connection box power supply system and method for submarine observation network
US11493976B2 (en) * 2019-03-27 2022-11-08 Texas Instruments Incorporated Methods and apparatus to dynamically limit current
CN110829389A (en) * 2019-11-18 2020-02-21 珠海格力电器股份有限公司 Breaker peak switching protection device and method and air conditioner
JP2021197799A (en) * 2020-06-12 2021-12-27 株式会社オートネットワーク技術研究所 Protective device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152305A (en) * 1983-12-22 1985-07-31 Bosch Gmbh Robert Circuit arrangement for controlling and monitoring electrical loads
EP0300078A1 (en) * 1987-07-23 1989-01-25 Mitsubishi Denki Kabushiki Kaisha Overcurrent detector and circuit breaker
US5994790A (en) * 1997-04-04 1999-11-30 Yazaki Corporation Method of detecting abnormal electric current in vehicle apparatus for detecting abnormal electric current in vehicle and power supply apparatus for vehicle
EP1150410A2 (en) * 2000-04-26 2001-10-31 Eaton Corporation Solid state protection circuit for electrical apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412267A (en) * 1980-02-06 1983-10-25 Eaton Corporation Time-delay current sensing circuit breaker relay
US4789848A (en) * 1987-09-03 1988-12-06 General Electric Company Molded case circuit breaker latch and operating mechanism assembly
US4860157A (en) * 1988-04-25 1989-08-22 General Electric Company Molded case circuit breaker actuator-accessory module
JPH02266712A (en) * 1989-04-07 1990-10-31 Fuji Electric Co Ltd Semiconductor device
US6972937B1 (en) 2000-02-17 2005-12-06 Pass & Seymour, Inc. Arc fault circuit detector having two arc fault detection levels
US6628495B2 (en) * 2001-07-09 2003-09-30 Sten R. Gerfast Fast acting, re-settable circuit breaker without moving parts
US7157813B2 (en) * 2003-10-03 2007-01-02 Power Integrations, Inc. Method and apparatus for mode selection for high voltage integrated circuits
US20050135034A1 (en) * 2003-12-19 2005-06-23 Caterpillar, Inc. Resettable circuit breaker
US7161775B2 (en) 2004-05-21 2007-01-09 Eaton Corporation Arc fault circuit breaker and apparatus for detecting wet track arc fault
US20080180866A1 (en) * 2007-01-29 2008-07-31 Honor Tone, Ltd. Combined arc fault circuit interrupter and leakage current detector interrupter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152305A (en) * 1983-12-22 1985-07-31 Bosch Gmbh Robert Circuit arrangement for controlling and monitoring electrical loads
EP0300078A1 (en) * 1987-07-23 1989-01-25 Mitsubishi Denki Kabushiki Kaisha Overcurrent detector and circuit breaker
US5994790A (en) * 1997-04-04 1999-11-30 Yazaki Corporation Method of detecting abnormal electric current in vehicle apparatus for detecting abnormal electric current in vehicle and power supply apparatus for vehicle
EP1150410A2 (en) * 2000-04-26 2001-10-31 Eaton Corporation Solid state protection circuit for electrical apparatus

Also Published As

Publication number Publication date
GB0812335D0 (en) 2008-08-13
GB201021403D0 (en) 2011-01-26
US20110085274A1 (en) 2011-04-14
US8810986B2 (en) 2014-08-19
GB2473569B (en) 2013-02-27
WO2010004260A1 (en) 2010-01-14
EP2301126A1 (en) 2011-03-30

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Legal Events

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

Effective date: 20220701