CN1049074C - 断路器 - Google Patents

断路器 Download PDF

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Publication number
CN1049074C
CN1049074C CN97115343A CN97115343A CN1049074C CN 1049074 C CN1049074 C CN 1049074C CN 97115343 A CN97115343 A CN 97115343A CN 97115343 A CN97115343 A CN 97115343A CN 1049074 C CN1049074 C CN 1049074C
Authority
CN
China
Prior art keywords
time
order
lag action
action characteristic
circuit breaker
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
CN97115343A
Other languages
English (en)
Chinese (zh)
Other versions
CN1172374A (zh
Inventor
佐藤荣悦
山田幸英
横山孝一
蓝原和哉
関口俊广
藤田英隆
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of CN1172374A publication Critical patent/CN1172374A/zh
Application granted granted Critical
Publication of CN1049074C publication Critical patent/CN1049074C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • H02H3/006—Calibration or setting of parameters
    • 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
    • H02H7/08—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 dynamo-electric motors
    • H02H7/085—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 dynamo-electric motors against excessive load
    • H02H7/0855—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 dynamo-electric motors against excessive load avoiding response to transient overloads, e.g. during starting

Landscapes

  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
CN97115343A 1996-07-25 1997-07-25 断路器 Expired - Fee Related CN1049074C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP196212/96 1996-07-25
JP19621296A JPH1042452A (ja) 1996-07-25 1996-07-25 回路遮断器

Publications (2)

Publication Number Publication Date
CN1172374A CN1172374A (zh) 1998-02-04
CN1049074C true CN1049074C (zh) 2000-02-02

Family

ID=16354076

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97115343A Expired - Fee Related CN1049074C (zh) 1996-07-25 1997-07-25 断路器

Country Status (3)

Country Link
JP (1) JPH1042452A (ja)
CN (1) CN1049074C (ja)
FR (1) FR2751784B1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4096668B2 (ja) * 2002-09-06 2008-06-04 三菱電機株式会社 回路遮断器
AU2003222829A1 (en) * 2003-04-17 2004-11-04 Enel Distribuzione S.P.A. Electric circuit breaker
DE102006025607A1 (de) * 2006-05-24 2007-11-29 Friedrich Lütze Gmbh & Co. Kg Vorrichtung zum selbsttätigen Abschalten oder Schalten eines elektrischen Verbrauchers
JP5289070B2 (ja) * 2009-01-19 2013-09-11 中国電力株式会社 過電流継電装置
KR101513210B1 (ko) 2013-11-11 2015-04-17 엘에스산전 주식회사 과전류 계전기
GB2570331B (en) * 2018-01-22 2020-08-12 Camlin Tech Limited Electrical power supply system for buildings and electrical load protection device for use in same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347541A (en) * 1981-01-14 1982-08-31 Gte Laboratories Incorporated Circuit breaker
US4685024A (en) * 1985-11-19 1987-08-04 General Electric Company Overcurrent circuit interrupter using RMS sampling

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57500313A (ja) * 1980-02-23 1982-02-18
US4827369A (en) * 1987-02-20 1989-05-02 Westinghouse Electric Corp. Circuit interrupter apparatus with a selectable display means

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347541A (en) * 1981-01-14 1982-08-31 Gte Laboratories Incorporated Circuit breaker
US4685024A (en) * 1985-11-19 1987-08-04 General Electric Company Overcurrent circuit interrupter using RMS sampling

Also Published As

Publication number Publication date
CN1172374A (zh) 1998-02-04
FR2751784A1 (fr) 1998-01-30
JPH1042452A (ja) 1998-02-13
FR2751784B1 (fr) 2001-02-02

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SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee