NO953609L - Fremgangsmåte og apparat for effektmåling - Google Patents

Fremgangsmåte og apparat for effektmåling

Info

Publication number
NO953609L
NO953609L NO953609A NO953609A NO953609L NO 953609 L NO953609 L NO 953609L NO 953609 A NO953609 A NO 953609A NO 953609 A NO953609 A NO 953609A NO 953609 L NO953609 L NO 953609L
Authority
NO
Norway
Prior art keywords
signal
proportional
period
voltage
collected
Prior art date
Application number
NO953609A
Other languages
English (en)
Other versions
NO953609D0 (no
Inventor
Kenneth Payne
David Alexander Watson
Roger Henry King
Original Assignee
Ampy Automation Digilog
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 Automation Digilog filed Critical Ampy Automation Digilog
Publication of NO953609L publication Critical patent/NO953609L/no
Publication of NO953609D0 publication Critical patent/NO953609D0/no

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

Det er beskrevet et apparat for måling av elektrisk effekt, og hvor apparatet er tilpasset for å frembringe et utgangssignal proporsjonalt med produktet av en forsyningsspenning (3) og strømmen (1) som flyter gjennom en tilkoblet belastning. Et første signal (10) proporsjonalt med forsyningsspenningen og et andre signal (9) proporsjonalt med belastningsstrømmen utnyttes for å modulere perioden av to bærebølgesignaler med konstant frekvens. Gjennomsnittet for i det minste ett av de modulerte signaler bestemmes ved hjelp av signalbehandlings- utstyr for å frembringe en referanseverdi for apparatet. Multiplisering av de modulerte signaler ved hjelp av mikroprosessoren frembringer effektproduktutgangssignalet. Påfølgende verdier av det periodemodulerte spenningsrelaterte signal oppsamles. Den oppsamlede verdi låses periodisk og mates til en datamaskin. En pulsteller og en tidsstyringskrets kan anordnes for å motta og måle det spenningsrelaterte periodevarierende signal.
NO953609A 1993-03-13 1995-09-13 Fremgangsmåte og apparat for effektmåling NO953609D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9305230A GB2276011B (en) 1993-03-13 1993-03-13 Improvements in and relating to power meters
PCT/GB1994/000492 WO1994022024A1 (en) 1993-03-13 1994-03-11 Power meter

Publications (2)

Publication Number Publication Date
NO953609L true NO953609L (no) 1995-09-13
NO953609D0 NO953609D0 (no) 1995-09-13

Family

ID=10732048

Family Applications (1)

Application Number Title Priority Date Filing Date
NO953609A NO953609D0 (no) 1993-03-13 1995-09-13 Fremgangsmåte og apparat for effektmåling

Country Status (9)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104459303A (zh) * 2014-12-24 2015-03-25 国家电网公司 一种双母线自适应采样选线装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285694B (en) * 1993-03-13 1997-05-21 Ampy Automation Digilog Power Measuring Method
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
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
GB9120011D0 (en) * 1991-09-19 1991-11-06 Ampy Automation Digilog Improvements in and relating to power meter
GB2286250B (en) * 1991-09-19 1996-04-03 Ampy Automation Digilog Improved power meter
GB2285694B (en) * 1993-03-13 1997-05-21 Ampy Automation Digilog Power Measuring Method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104459303A (zh) * 2014-12-24 2015-03-25 国家电网公司 一种双母线自适应采样选线装置

Also Published As

Publication number Publication date
FI954297A (fi) 1995-10-13
GB2276011A (en) 1994-09-14
GB9506331D0 (en) 1995-05-17
EP0688434A1 (en) 1995-12-27
FI954297A0 (fi) 1995-09-13
AU679729B2 (en) 1997-07-10
GB2285693B (en) 1997-05-21
GB2285693A (en) 1995-07-19
GB9506330D0 (en) 1995-05-17
JPH08507609A (ja) 1996-08-13
NO953609D0 (no) 1995-09-13
GB2285692A (en) 1995-07-19
WO1994022024A1 (en) 1994-09-29
AU6212894A (en) 1994-10-11
ES2081786T1 (es) 1996-03-16
GB9305230D0 (en) 1993-04-28
GR960300002T1 (en) 1996-02-29
GB2276011B (en) 1997-05-14

Similar Documents

Publication Publication Date Title
NO953609L (no) Fremgangsmåte og apparat for effektmåling
NO940846L (no) Fremgangsmåte og apparat for effektmåling
JPS571972A (en) Electronic type electric energy meter
EP0237171A3 (en) Inductance divider sensor
JPS559147A (en) Electric power meter
EP0296968A3 (en) Integrated poly-phase power meter
DE3573021D1 (en) Method, circuit and device for eliminating the dc-voltage component of a capacitive ac-voltage divider
EP0205924A3 (en) Monitoring system for detecting quench of superconductive coils
FR2563013B1 (fr) Compteur electronique de consommation d'energie et procede de mesure d'energie electrique avec un compteur de consommation d'energie
NO953608L (no) Fremgangsmåte og apparat for effektmåling
JPS54128382A (en) Tuning signal intensity detecting circuit
ES8702006A1 (es) Perfeccionamientos en una disposicion de conexiones para el control de la alimentacion de corrientes de un consumidor electrico
MY106186A (en) Image signal average picture level detecting apparatus.
MY113354A (en) Signal-receiving and signal-processing unit
JPS6454270A (en) Integration type multi-phase wattmeter
JPS5411054A (en) Monitoring for high frequency electric welding phenomenon and nomitor-control equipment
NO995174L (no) Anordning og fremgangsmåte ved posisjonsbestemmelse av forstyrrelser i elektriske fordelernett
JPS57120129A (en) Constant voltage device
JPS5535241A (en) Fault-point ranging unit for power cable
SU687392A1 (ru) Счетчик электрической энергии
JPS5529722A (en) Current measuring unit
SU757992A1 (ru) Автоматический измеритель переменных напряжений 1
RU2010249C1 (ru) Способ измерения напряженности электрического поля
SU1555675A2 (ru) Измеритель активной мощности
JPS56107162A (en) Periodical measurenent-type wind velocity measurement