SE9804496D0 - Electrical protection device - Google Patents

Electrical protection device

Info

Publication number
SE9804496D0
SE9804496D0 SE9804496A SE9804496A SE9804496D0 SE 9804496 D0 SE9804496 D0 SE 9804496D0 SE 9804496 A SE9804496 A SE 9804496A SE 9804496 A SE9804496 A SE 9804496A SE 9804496 D0 SE9804496 D0 SE 9804496D0
Authority
SE
Sweden
Prior art keywords
current
protection device
electrical protection
current level
relates
Prior art date
Application number
SE9804496A
Other languages
Swedish (sv)
Other versions
SE9804496L (en
Inventor
Lars Liljestrand
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Priority to SE516373D priority Critical patent/SE516373C2/en
Priority to SE9804496A priority patent/SE9804496L/en
Publication of SE9804496D0 publication Critical patent/SE9804496D0/en
Priority to EP99965668A priority patent/EP1149450A1/en
Priority to PCT/SE1999/002430 priority patent/WO2000038292A1/en
Priority to JP2000590269A priority patent/JP2002534043A/en
Priority to AU21357/00A priority patent/AU2135700A/en
Publication of SE9804496L publication Critical patent/SE9804496L/en

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
    • H02H3/02—Details
    • H02H3/025—Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Keying Circuit Devices (AREA)

Abstract

The invention relates to an electric protective device which includes a current limiter (101). The current limiter is arranged to be activated if a predetermined current level above normal current level is reached. According to the invention, detecting means (102) detect whether the increased current level is a fault current or a load transient, and a circuit breaker (103) is arranged to open if there is a fault current, but remain closed otherwise. The invention also relates to a corresponding method, to a circuit provided with the device and to a use of the device.
SE9804496A 1998-12-22 1998-12-22 Electrical protection device SE9804496L (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE516373D SE516373C2 (en) 1998-12-22 1998-12-22 Electrical protective device has detector to sense false increase in current level transient increase in current level to activate current limiter
SE9804496A SE9804496L (en) 1998-12-22 1998-12-22 Electrical protection device
EP99965668A EP1149450A1 (en) 1998-12-22 1999-12-20 An electric device
PCT/SE1999/002430 WO2000038292A1 (en) 1998-12-22 1999-12-20 An electric device
JP2000590269A JP2002534043A (en) 1998-12-22 1999-12-20 Electrical equipment
AU21357/00A AU2135700A (en) 1998-12-22 1999-12-20 An electric device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804496A SE9804496L (en) 1998-12-22 1998-12-22 Electrical protection device

Publications (2)

Publication Number Publication Date
SE9804496D0 true SE9804496D0 (en) 1998-12-22
SE9804496L SE9804496L (en) 2000-06-23

Family

ID=20413818

Family Applications (2)

Application Number Title Priority Date Filing Date
SE516373D SE516373C2 (en) 1998-12-22 1998-12-22 Electrical protective device has detector to sense false increase in current level transient increase in current level to activate current limiter
SE9804496A SE9804496L (en) 1998-12-22 1998-12-22 Electrical protection device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SE516373D SE516373C2 (en) 1998-12-22 1998-12-22 Electrical protective device has detector to sense false increase in current level transient increase in current level to activate current limiter

Country Status (5)

Country Link
EP (1) EP1149450A1 (en)
JP (1) JP2002534043A (en)
AU (1) AU2135700A (en)
SE (2) SE516373C2 (en)
WO (1) WO2000038292A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236186A (en) * 1979-01-17 1980-11-25 Mitsubishi Denki Kabushiki Kaisha Power breaker system
JPS6010413B2 (en) * 1981-08-13 1985-03-16 三菱電機株式会社 current limiting device
SE509270C2 (en) * 1997-04-14 1998-12-21 Asea Brown Boveri Variable electrical resistance and method for increasing and changing the resistance of an electrical resistance respectively

Also Published As

Publication number Publication date
AU2135700A (en) 2000-07-12
WO2000038292A1 (en) 2000-06-29
EP1149450A1 (en) 2001-10-31
SE9804496L (en) 2000-06-23
SE516373C2 (en) 2002-01-08
JP2002534043A (en) 2002-10-08

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Legal Events

Date Code Title Description
NUG Patent has lapsed