IN2014DN09153A - - Google Patents

Info

Publication number
IN2014DN09153A
IN2014DN09153A IN9153DEN2014A IN2014DN09153A IN 2014DN09153 A IN2014DN09153 A IN 2014DN09153A IN 9153DEN2014 A IN9153DEN2014 A IN 9153DEN2014A IN 2014DN09153 A IN2014DN09153 A IN 2014DN09153A
Authority
IN
India
Prior art keywords
phase
isolated
power source
detected
circuit breaker
Prior art date
Application number
Inventor
Tadashi Koshizuka
Shiro Maruyama
Minoru Saito
Hiroyuki Maehara
Koji Suzuki
Original Assignee
Toshiba Kk
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 Toshiba Kk filed Critical Toshiba Kk
Publication of IN2014DN09153A publication Critical patent/IN2014DN09153A/en

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
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • 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
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle
    • H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle
    • H01H33/593—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle for ensuring operation of the switch at a predetermined point of the AC cycle
    • 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
    • H02H3/083—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 three-phase systems
    • 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
    • H02H7/045—Differential protection of transformers
    • H02H7/0455—Differential protection of transformers taking into account saturation of current transformers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Protection Of Transformers (AREA)
  • Keying Circuit Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

A magnetizing inrush current suppression device (6) controls a circuit breaker (2) that opens and closes a connection between a three phase transformer (3) and a power source bus (1) in a state where a load (7) is connected to the three phase transformer (3) such that a magnetizing inrush current is suppressed. The three phase alternating current voltage on the power source bus (1) side of the circuit breaker (2) is measured and the current for the three phase alternating current flowing in the load (7) from the power source bus (1) is measured. An isolated first phase that is the first isolated of the three phases is detected and a zero point phase (0c) that is passed through when the isolated first phase for the three phase alternating current voltage transitions from the same polarity as the polarity of the current just before isolation of the isolated first phase to the reverse polarity is detected. The circuit breaker (2) is turned on at a phase within 60° from the detected phase (0c).
IN9153DEN2014 2012-05-08 2013-04-16 IN2014DN09153A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012106618A JP5908336B2 (en) 2012-05-08 2012-05-08 Excitation inrush current suppression device and excitation inrush current suppression method
PCT/JP2013/061292 WO2013168519A1 (en) 2012-05-08 2013-04-16 Magnetizing inrush current suppression device

Publications (1)

Publication Number Publication Date
IN2014DN09153A true IN2014DN09153A (en) 2015-05-22

Family

ID=49550572

Family Applications (1)

Application Number Title Priority Date Filing Date
IN9153DEN2014 IN2014DN09153A (en) 2012-05-08 2013-04-16

Country Status (7)

Country Link
US (1) US9704664B2 (en)
JP (1) JP5908336B2 (en)
CN (1) CN104272418B (en)
BR (1) BR112014027652A2 (en)
CA (1) CA2872637A1 (en)
IN (1) IN2014DN09153A (en)
WO (1) WO2013168519A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105186490B (en) * 2015-08-17 2018-06-15 佛山电力设计院有限公司 Breaker and open-circuit system with zero curve and phase line burn out detection function
JP6875393B2 (en) 2015-12-02 2021-05-26 ダウ グローバル テクノロジーズ エルエルシー Addition Manufacturing Carbon Michael Addition Articles and Methods for Producing them
JP7192487B2 (en) * 2018-12-25 2022-12-20 東京電力ホールディングス株式会社 Inspection method and test equipment
WO2020136545A1 (en) * 2018-12-27 2020-07-02 Abb Schweiz Ag Method and device for monitoring operation of a switching device for controlled switching applications

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2685574B2 (en) * 1988-09-06 1997-12-03 中部電力株式会社 Transformer excitation surge suppressor
JP2001218354A (en) * 1999-11-25 2001-08-10 Mitsubishi Electric Corp Phase control switchgear
JP3804606B2 (en) * 2002-12-25 2006-08-02 三菱電機株式会社 Transformer excitation inrush current suppression device
CN100367595C (en) * 2004-01-15 2008-02-06 叶念国 Static exciter inrush current inhibition method and apparatus
JP4762073B2 (en) 2006-07-25 2011-08-31 東芝情報システム株式会社 Voice call terminal, program for voice call terminal, and voice communication system
EP2091058A4 (en) 2006-11-29 2017-07-26 Kabushiki Kaisha Toshiba Apparatus and method for compressing exciting inrush current of transformer
JP5055602B2 (en) 2007-11-27 2012-10-24 三菱電機株式会社 Transformer operation control apparatus and method
JP5148435B2 (en) * 2008-09-22 2013-02-20 北海道電力株式会社 Inrush current suppressing device for transformer and control method thereof
BRPI0919033A2 (en) 2008-09-26 2015-12-08 Mitsubishi Electric Corp transformer current surge suppression apparatus
JP5459666B2 (en) 2010-01-28 2014-04-02 株式会社東芝 Excitation current suppression device
JP4762378B1 (en) * 2010-12-17 2011-08-31 三菱電機株式会社 Inrush current suppression device
JP5713848B2 (en) 2011-09-14 2015-05-07 株式会社東芝 Excitation current suppression device

Also Published As

Publication number Publication date
JP2013235694A (en) 2013-11-21
US9704664B2 (en) 2017-07-11
JP5908336B2 (en) 2016-04-26
CN104272418A (en) 2015-01-07
US20150055266A1 (en) 2015-02-26
CN104272418B (en) 2016-08-24
BR112014027652A2 (en) 2018-04-10
WO2013168519A1 (en) 2013-11-14
CA2872637A1 (en) 2013-11-14

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