WO2011116488A8 - Method and apparatus for suppressing an inrush current of a trans former - Google Patents

Method and apparatus for suppressing an inrush current of a trans former Download PDF

Info

Publication number
WO2011116488A8
WO2011116488A8 PCT/CN2010/000344 CN2010000344W WO2011116488A8 WO 2011116488 A8 WO2011116488 A8 WO 2011116488A8 CN 2010000344 W CN2010000344 W CN 2010000344W WO 2011116488 A8 WO2011116488 A8 WO 2011116488A8
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
closing
transformer
suppressing
inrush current
Prior art date
Application number
PCT/CN2010/000344
Other languages
French (fr)
Other versions
WO2011116488A1 (en
Inventor
Ming Li
Jun Shi
Er Yu
Enrique GAXIOLA
Gerd Griepentrog
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to CN201080065713.6A priority Critical patent/CN102834994B/en
Priority to EP10848150.8A priority patent/EP2550715A4/en
Priority to PCT/CN2010/000344 priority patent/WO2011116488A1/en
Publication of WO2011116488A1 publication Critical patent/WO2011116488A1/en
Publication of WO2011116488A8 publication Critical patent/WO2011116488A8/en

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Classifications

    • 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
    • H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
    • H02H9/002—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off limiting inrush current on switching on of inductive loads subjected to remanence, e.g. transformers
    • 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
    • H02H7/04—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 transformers

Abstract

The invention relates to a method and apparatus for suppressing an inrush current of a three-phase transformer (15) connected to a three-phase power supply via a triple- pole circuit breaker (20), the transformer (15) being connected and disconnected from the power supply by closing and opening the circuit breaker (20), wherein the method comprises monitoring a property of at least two phases of the transformer (15), determining a residual flux pattern after the circuit breaker (20) is opened, computing an equivalent opening moment (60) of the circuit breaker (20) using the property monitored, wherein at the equivalent opening moment (60) of the circuit breaker (20), the phases of the transformer (15) are de-energized simultaneously, deriving a closing time window (64) for closing the circuit breaker (20) on the basis of the equivalent opening moment (60), and closing the poles of the circuit breaker (20) simultaneously within the closing time window (64).
PCT/CN2010/000344 2010-03-22 2010-03-22 Method and apparatus for suppressing an inrush current of a trans former WO2011116488A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080065713.6A CN102834994B (en) 2010-03-22 2010-03-22 Method and apparatus for suppressing an inrush current of a transformer
EP10848150.8A EP2550715A4 (en) 2010-03-22 2010-03-22 Method and apparatus for suppressing an inrush current of a trans former
PCT/CN2010/000344 WO2011116488A1 (en) 2010-03-22 2010-03-22 Method and apparatus for suppressing an inrush current of a trans former

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/000344 WO2011116488A1 (en) 2010-03-22 2010-03-22 Method and apparatus for suppressing an inrush current of a trans former

Publications (2)

Publication Number Publication Date
WO2011116488A1 WO2011116488A1 (en) 2011-09-29
WO2011116488A8 true WO2011116488A8 (en) 2013-05-02

Family

ID=44672418

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/000344 WO2011116488A1 (en) 2010-03-22 2010-03-22 Method and apparatus for suppressing an inrush current of a trans former

Country Status (3)

Country Link
EP (1) EP2550715A4 (en)
CN (1) CN102834994B (en)
WO (1) WO2011116488A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103078517A (en) * 2012-12-27 2013-05-01 保定天威集团有限公司 Generation device and method for magnetizing inrush current of three-phase transformer
US9590536B2 (en) * 2013-03-15 2017-03-07 Rockwell Automation Technolgies, Inc. Two-step connection of electric motors by means of electromagnetic switches
EP3078052A4 (en) * 2013-12-08 2017-12-06 Vizimax Inc. Controlled switching devices and method of using the same
CN106605344B (en) * 2014-07-02 2019-05-31 维齐马克斯有限公司 Controlled switch equipment and its application method
CN104300498B (en) * 2014-10-22 2017-05-03 江苏省电力公司扬州供电公司 Transformer magnetizing inrush current restraining and differential protection matching method
FR3044186B1 (en) * 2015-11-23 2017-12-22 General Electric Technology Gmbh METHOD AND DEVICE FOR POWERING A POWER TRANSFORMER
CN105449652B (en) * 2015-12-22 2017-11-21 南京国电南自电网自动化有限公司 A kind of positive sequence voltage phase control type excitation surge current suppressing method
CN105870897B (en) * 2016-06-02 2018-04-10 国网山东省电力公司莱芜供电公司 A kind of inrush phenomenon restraining device for jumping breaker altogether based on three-phase
DE102019006432A1 (en) * 2018-10-12 2020-04-16 Sew-Eurodrive Gmbh & Co Kg Method for monitoring the operation of an electric motor and hoist
EP3716432A1 (en) * 2019-03-29 2020-09-30 ABB Schweiz AG Operating a circuit breaker from a variable speed drive arrangement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001218354A (en) * 1999-11-25 2001-08-10 Mitsubishi Electric Corp Phase control switchgear
FI111200B (en) * 2001-05-25 2003-06-13 Abb Oy Method and arrangement to reduce strain on the power grid
CN101563744B (en) * 2006-11-29 2011-11-30 株式会社东芝 Apparatus and method for compressing exciting inrush current of transformer
CN101647169B (en) * 2007-04-20 2014-05-28 三菱电机株式会社 Phase control switch and switching pole control method in phase control switch
JP5055602B2 (en) * 2007-11-27 2012-10-24 三菱電機株式会社 Transformer operation control apparatus and method
EP2093853B1 (en) * 2008-02-22 2013-11-06 Balfour Beatty PLC A method and an apparatus for reducing inrush currents for railways
JP5208593B2 (en) * 2008-06-20 2013-06-12 株式会社東芝 Inrush current suppressing device for transformer and control method thereof

Also Published As

Publication number Publication date
EP2550715A1 (en) 2013-01-30
CN102834994B (en) 2015-05-20
CN102834994A (en) 2012-12-19
EP2550715A4 (en) 2016-11-09
WO2011116488A1 (en) 2011-09-29

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