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MX2010003359A - Monitor para corriente de paso de falla en un transformador. - Google Patents

Monitor para corriente de paso de falla en un transformador.

Info

Publication number
MX2010003359A
MX2010003359A MX2010003359A MX2010003359A MX2010003359A MX 2010003359 A MX2010003359 A MX 2010003359A MX 2010003359 A MX2010003359 A MX 2010003359A MX 2010003359 A MX2010003359 A MX 2010003359A MX 2010003359 A MX2010003359 A MX 2010003359A
Authority
MX
Mexico
Prior art keywords
current
magnitude
transformer
fault energy
calculator
Prior art date
Application number
MX2010003359A
Other languages
English (en)
Inventor
Armando Guzman-Casillas
Normann Fischer
Original Assignee
Schweitzer Engineering Lab Inc
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 Schweitzer Engineering Lab Inc filed Critical Schweitzer Engineering Lab Inc
Publication of MX2010003359A publication Critical patent/MX2010003359A/es

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/088—Aspects of digital computing

Landscapes

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

Abstract

Se provee un dispositivo para monitorear la corriente de paso de falla en un transformador el?ctrico en un sistema de energ?a el?ctrica. El dispositivo incluye generalmente un calculador de magnitud para calcular la magnitud de la corriente (por ejemplo, un valor de media cuadr?tica de la corriente o magnitud de una fundamental de la corriente) con base en la corriente a trav?s del transformador el?ctrico. Se provee adicionalmente un calculador de energ?a de paso de falla el cual est? acoplado al calculador de magnitud para calcular un valor de energ?a de paso de falla con base en la magnitud de la corriente o la corriente calculada a trav?s del transformador. Un acumulador est? acoplado al calculador de energ?a de paso de falla para acumular una pluralidad de valores de energ?a de paso de falla, y una alarma est? acoplada al acumulador para indicar que los valores acumulados de energ?a de paso de falla exceden un umbral seleccionado.
MX2010003359A 2007-10-09 2008-10-08 Monitor para corriente de paso de falla en un transformador. MX2010003359A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97866007P 2007-10-09 2007-10-09
PCT/US2008/079232 WO2009048972A1 (en) 2007-10-09 2008-10-08 Transformer through-fault current monitor

Publications (1)

Publication Number Publication Date
MX2010003359A true MX2010003359A (es) 2010-04-14

Family

ID=40523034

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010003359A MX2010003359A (es) 2007-10-09 2008-10-08 Monitor para corriente de paso de falla en un transformador.

Country Status (4)

Country Link
US (1) US8031447B2 (es)
CA (1) CA2702210C (es)
MX (1) MX2010003359A (es)
WO (1) WO2009048972A1 (es)

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US11575253B2 (en) 2020-05-12 2023-02-07 Schweitzer Engineering Laboratories, Inc. Controlled three-pole close for transmission lines
US11233389B1 (en) 2020-10-30 2022-01-25 Schweitzer Engineering Laboratories, Inc. Controlled three-pole close for transformers
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Also Published As

Publication number Publication date
WO2009048972A1 (en) 2009-04-16
US20090091867A1 (en) 2009-04-09
CA2702210C (en) 2014-03-18
US8031447B2 (en) 2011-10-04
CA2702210A1 (en) 2009-04-16

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