ES2081786T1 - Aparato medidor de potencia. - Google Patents

Aparato medidor de potencia.

Info

Publication number
ES2081786T1
ES2081786T1 ES94909198T ES94909198T ES2081786T1 ES 2081786 T1 ES2081786 T1 ES 2081786T1 ES 94909198 T ES94909198 T ES 94909198T ES 94909198 T ES94909198 T ES 94909198T ES 2081786 T1 ES2081786 T1 ES 2081786T1
Authority
ES
Spain
Prior art keywords
signal
period
proportional
voltage
modulated
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.)
Pending
Application number
ES94909198T
Other languages
English (en)
Inventor
Kenneth Payne
David Alexander Watson
Roger Henry King
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.)
Landis and Gyr Ltd
Original Assignee
Ampy Automotion Digilog Ltd
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 Ampy Automotion Digilog Ltd filed Critical Ampy Automotion Digilog Ltd
Publication of ES2081786T1 publication Critical patent/ES2081786T1/es
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • 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
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/252—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with conversion of voltage or current into frequency and measuring of this frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • General Induction Heating (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

SE DESCRIBE UN APARATO PARA MEDIR LA POTENCIA ELECTRICA EN DONDE EL APARATO SE ENCUENTRA ADAPTADO PARA GENERAR UNA SEÑAL DE SALIDA PROPORCIONAL AL PRODUCTO DE UNA TENSION DE ALIMENTACION Y UNA CORRIENTE QUE FLUYE A TRAVES DE UNA CARGA CONECTADA AL MISMO. SE UTILIZAN UNA PRIMERA SEÑAL PROPORCIONAL A LA TENSION DE ALIMENTACION Y UNA SEGUNDA SEÑAL PROPORCIONAL A LA CORRIENTE DE CARGA PARA MODULAR EL PERIODO DE DOS SEÑALES DE PORTADORA DE FRECUENCIA CONSTANTE. SE PROMEDIA AL MENOS UNA DE LAS SEÑALES MODULADAS MEDIANTE UN ELEMENTO PROCESADOR DE SEÑALES PARA OBTENER UN VALOR DE REFERENCIA PARA EL APARATO. CON LA MULTIPLICACION DE LAS SEÑALES MODULADAS POR PARTE DEL MICROPROCESADOR SE OBTIENE LA SEÑAL DE SALIDA DEL PRODUCTO LAS POTENCIAS. SE ACUMULAN LOS VALORES SUCESIVOS DE LA SEÑAL RELACIONADA CON LA TENSION MODULADA EN PERIODO. EL VALOR ACUMULADO SE BLOQUEA PERIODICAMENTE Y SE INTRODUCE EN UN ORDENADOR. SE PUEDEN INCLUIR UN CONTADOR DE IMPULSOS Y UN TEMPORIZADOR PARA RECIBIR Y MEDIR LA SEÑAL VARIABLE EN PERIODO RELACIONADA CON LA TENSION.
ES94909198T 1993-03-13 1994-03-11 Aparato medidor de potencia. Pending ES2081786T1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9305230A GB2276011B (en) 1993-03-13 1993-03-13 Improvements in and relating to power meters

Publications (1)

Publication Number Publication Date
ES2081786T1 true ES2081786T1 (es) 1996-03-16

Family

ID=10732048

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94909198T Pending ES2081786T1 (es) 1993-03-13 1994-03-11 Aparato medidor de potencia.

Country Status (9)

Country Link
EP (1) EP0688434A1 (es)
JP (1) JPH08507609A (es)
AU (1) AU679729B2 (es)
ES (1) ES2081786T1 (es)
FI (1) FI954297A (es)
GB (3) GB2285693B (es)
GR (1) GR960300002T1 (es)
NO (1) NO953609D0 (es)
WO (1) WO1994022024A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276012B (en) * 1993-03-13 1997-05-21 Ampy Automation Digilog Improved power meter
GB2306677B (en) * 1995-11-02 2000-10-04 Siemens Measurements Ltd Improvements in or relating to electricity meters
JP3290946B2 (ja) 1998-03-10 2002-06-10 株式会社東芝 電力演算装置
JP2007147334A (ja) * 2005-11-24 2007-06-14 Jimbo Electric Co Ltd デジタル表示電流監視ユニット
CN103353545B (zh) * 2013-07-22 2015-06-10 国家电网公司 一种电压电流回路载波隔离衰减设备
CN103645457B (zh) * 2013-12-20 2016-06-01 国家电网公司 一种电能表现场检验装置
CN104459303B (zh) * 2014-12-24 2016-06-01 国家电网公司 一种双母线自适应采样选线装置
CN105487032A (zh) * 2016-01-04 2016-04-13 国网山东省电力公司青岛供电公司 一种检定装置
US11442087B2 (en) * 2019-04-25 2022-09-13 Microchip Technology Incorporated Adaptive power measurement accumulator with a changing sampling frequency
CN110297124B (zh) * 2019-08-06 2022-04-12 南方电网科学研究院有限责任公司 一种非接地式电压测量装置及方法
CN114942402B (zh) * 2022-07-20 2022-11-29 武汉格蓝若智能技术有限公司 一种异常电能表定位方法及系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH551013A (de) * 1972-06-07 1974-06-28 Landis & Gyr Ag Schaltungsanordnung zur produktbildung aus spannung und strom zwecks messung elektrischer energie.
DE2839123C2 (de) * 1978-09-08 1980-10-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Spannungs-Frequenz-Wandler
EP0446962A3 (en) * 1986-04-11 1992-06-03 Schlumberger Industries, Inc. Solid state electricity meter display
JPS63246025A (ja) * 1987-04-01 1988-10-13 Nec Corp パルス周波数変調回路
GB2217027A (en) * 1988-04-05 1989-10-18 Omega Electric Ltd Active power measurement
GB2286250B (en) * 1991-09-19 1996-04-03 Ampy Automation Digilog Improved power meter
GB9120011D0 (en) * 1991-09-19 1991-11-06 Ampy Automation Digilog Improvements in and relating to power meter
GB2276012B (en) * 1993-03-13 1997-05-21 Ampy Automation Digilog Improved power meter

Also Published As

Publication number Publication date
AU6212894A (en) 1994-10-11
AU679729B2 (en) 1997-07-10
GB2285693A (en) 1995-07-19
GB2285692A (en) 1995-07-19
WO1994022024A1 (en) 1994-09-29
GB9506331D0 (en) 1995-05-17
GB9305230D0 (en) 1993-04-28
FI954297A0 (fi) 1995-09-13
EP0688434A1 (en) 1995-12-27
GB2276011B (en) 1997-05-14
GB9506330D0 (en) 1995-05-17
GB2276011A (en) 1994-09-14
JPH08507609A (ja) 1996-08-13
FI954297A (fi) 1995-10-13
GB2285693B (en) 1997-05-21
NO953609L (no) 1995-09-13
GR960300002T1 (en) 1996-02-29
NO953609D0 (no) 1995-09-13

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