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ES2005487A6 - Sensor de corriente. - Google Patents

Sensor de corriente.

Info

Publication number
ES2005487A6
ES2005487A6 ES8703664A ES8703664A ES2005487A6 ES 2005487 A6 ES2005487 A6 ES 2005487A6 ES 8703664 A ES8703664 A ES 8703664A ES 8703664 A ES8703664 A ES 8703664A ES 2005487 A6 ES2005487 A6 ES 2005487A6
Authority
ES
Spain
Prior art keywords
input switching
watthour meter
offset
time constant
voltage compensation
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
Application number
ES8703664A
Other languages
English (en)
Inventor
Thomas Andrew Jochum
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of ES2005487A6 publication Critical patent/ES2005487A6/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/30—Dynamo-electric motor meters
    • G01R11/32—Watt-hour meters
    • 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
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplifiers (AREA)

Abstract

UN CIRCUITO ELECTRONICO DE MEDICION INCLUYE UN TRANSFORMADOR DE INTENSIDAD CON REALIMENTACION ACTIVA PARA MANTENER CASI EN CERO EL FLUJO QUE ATRAVIESA EL NUCLEO. EN UN MODO DE REALIZACION DE LA INVENCION, LA COMPENSACION DE LA TENSION DE DESVIACION RESIDUAL DE CORRIENTE CONTINUA EN EL AMPLIFICADOR OPERACIONAL QUE SUMINISTRA LA SEÑAL DE REALIMENTACION ACTIVA, SE EFECTUA UTILIZANDO UN INTEGRADOR QUE TIENE UNA LARGA CONSTANTE DE TIEMPO EN COMPARACION CON LA CONSTANTE DE TIEMPO DE SEÑALES PERIODICAS. OTRO MODO DE REALIZACION DE LA INVENCION INTEGRA LAS FUNCIONES DE DETECCION DE CORRIENTE, COMPENSACION DE LA TENSION DE DESVIACION RESIDUAL DE CORRIENTE CONTINUA, Y PARTE DE LA FUNCION DE CONMUTACION NECESARIA EN EL CIRCUITO ELECTRONICO DE MEDICION.
ES8703664A 1986-12-22 1987-12-21 Sensor de corriente. Expired ES2005487A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/944,313 US4761605A (en) 1986-12-22 1986-12-22 Input switching in electronic watthour meter

Publications (1)

Publication Number Publication Date
ES2005487A6 true ES2005487A6 (es) 1989-03-01

Family

ID=25481174

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8703664A Expired ES2005487A6 (es) 1986-12-22 1987-12-21 Sensor de corriente.

Country Status (8)

Country Link
US (1) US4761605A (es)
KR (1) KR880008030A (es)
AU (1) AU588775B2 (es)
BR (1) BR8706970A (es)
ES (1) ES2005487A6 (es)
FR (1) FR2608774A1 (es)
GB (1) GB2199150A (es)
PH (1) PH24272A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2113292A1 (es) * 1994-08-10 1998-04-16 Gen Electric Sensor de corriente y procedimiento correspondiente utilizando realimentacion generada diferencialmente.

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952853A (en) * 1988-08-24 1990-08-28 General Electric Company Method and apparatus for sensing direct current of one polarity in a conductor and electronically commutated motor control responsive to sensed motor current
US5066904A (en) * 1988-10-18 1991-11-19 General Electric Company Coaxial current sensors
GB2225436A (en) * 1988-11-25 1990-05-30 Gen Electric Co Plc Alternating current sensors
US4970459A (en) * 1988-12-02 1990-11-13 General Electric Company Electronic meter chopper stabilization
US5017860A (en) * 1988-12-02 1991-05-21 General Electric Company Electronic meter digital phase compensation
GB2244142A (en) * 1990-05-16 1991-11-20 Westinghouse Brake & Signal Current transformer measuring circuits
JP3002310B2 (ja) * 1991-11-21 2000-01-24 株式会社東芝 電力量計
US5585716A (en) * 1993-01-20 1996-12-17 Schlumberger Industries, S.A. Multiple stage frequency modulated circuit
US5539354A (en) * 1993-08-18 1996-07-23 Carsten; Bruce W. Integrator for inductive current sensor
EP0686850A1 (de) * 1994-06-09 1995-12-13 Lem S.A. Schaltungsanordnung zur Messung von Gleichströmen mit Potentialtrennung zwischen Stromkreis und Messkreis
US5652505A (en) * 1995-12-18 1997-07-29 Neilsen-Kuljian, Inc. Power consumption measurement device for a multiphase alternating current system
US7541800B2 (en) * 2007-07-16 2009-06-02 General Electric Company Methods and systems for detecting DC influence in a current sensor
JP6625395B2 (ja) * 2015-10-26 2019-12-25 日置電機株式会社 電流センサおよび測定装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE397221B (sv) * 1973-06-05 1977-10-24 Siemens Ag Stromtransformator med elektronisk felkompensation, i synnerhet for elektroniska kwh-metare
US4182982A (en) * 1978-07-11 1980-01-08 Westinghouse Electric Corp. Current sensing transducer for power line current measurements
JPS571972A (en) * 1980-06-04 1982-01-07 Toshiba Corp Electronic type electric energy meter
US4482862A (en) * 1982-06-10 1984-11-13 The Charles Stark Draper Laboratory, Inc. Current sensor
SE434781B (sv) * 1982-12-21 1984-08-13 Ericsson Telefon Ab L M Sett att meta en likstrom eller en lagfrekvent vexelstrom
DK149238C (da) * 1983-09-15 1987-01-19 Danfysik As Detektorkredslaeb til brug ved straemmaaling
US4641105A (en) * 1985-10-07 1987-02-03 Burr-Brown Corporation Apparatus and method for noise reduction in a linear amplifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2113292A1 (es) * 1994-08-10 1998-04-16 Gen Electric Sensor de corriente y procedimiento correspondiente utilizando realimentacion generada diferencialmente.

Also Published As

Publication number Publication date
KR880008030A (ko) 1988-08-30
FR2608774A1 (fr) 1988-06-24
US4761605A (en) 1988-08-02
BR8706970A (pt) 1988-07-26
GB8729704D0 (en) 1988-02-03
PH24272A (en) 1990-05-29
GB2199150A (en) 1988-06-29
AU588775B2 (en) 1989-09-21
AU8290087A (en) 1988-06-23

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2007-12-21

FD1A Patent lapsed

Effective date: 20100528