NO940846L - Fremgangsmåte og apparat for effektmåling - Google Patents
Fremgangsmåte og apparat for effektmålingInfo
- Publication number
- NO940846L NO940846L NO940846A NO940846A NO940846L NO 940846 L NO940846 L NO 940846L NO 940846 A NO940846 A NO 940846A NO 940846 A NO940846 A NO 940846A NO 940846 L NO940846 L NO 940846L
- Authority
- NO
- Norway
- Prior art keywords
- signals
- proportional
- signal
- voltage
- power
- Prior art date
Links
Classifications
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
En fremgangsmåte for å frembringe et produkt av signaler som er proporsjonale med spenningen for en elektrisk kraftfor- syning og den strøm som flyter gjennom en belastning tilkoblet denne, idet det utledes et første signal som er proporsjonalt med kraftforsyningens spenning, det utledes et annet signal som er proporsjonalt med belastningsstrømmen, to bærebølge- signaler med konstant frekvens moduleres med henhv. det første og det annet signal for derved å frembringe henhv. tredje og fjerde signal, tredje og fjerde signal normaliseres med hensyn på de frekvenser som tilsvarer henhv. nullspenning og nullstrøm, og de to normaliserte tredje og fjerde signaler multipliseres innbyrdes for å danne et produktsignal som er proporsjonalt med den effekt som absorberes av den tilkoblede belastning til den elektriske kraftforsyning. Tredje og fjerde signal omfatter hvert sitt pulstog hvis øyeblikksverdi av pulsgjentagelsestakten er proporsjonal med nevnte spenning og strøm. Det er videre beskrevet et apparat for utførelse av denne fremgangsmåte. En tidsstyrende anordning av type 555 utnyttes for omforming av spenning til frekvens. Videre utnyttes en mikroprosessor for å multiplisere femte og sjette signal med hverandre, og denne mikroprosessor er programmert for å beregne ut ifra disse signaler ikke bare den tilsyne- latende effekt, men også efffektens tilsynelatende øyeblikksverdi, den reelle komponent av energi og effekt samt også de reaktive komponenter av energi og effekt som tilføres belastningen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9120012A GB2259779B (en) | 1991-09-19 | 1991-09-19 | Improved power meter |
PCT/GB1992/001664 WO1993006493A1 (en) | 1991-09-19 | 1992-09-11 | Method and apparatus for power measuring |
Publications (2)
Publication Number | Publication Date |
---|---|
NO940846D0 NO940846D0 (no) | 1994-03-10 |
NO940846L true NO940846L (no) | 1994-03-10 |
Family
ID=10701658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO940846A NO940846L (no) | 1991-09-19 | 1994-03-10 | Fremgangsmåte og apparat for effektmåling |
Country Status (13)
Country | Link |
---|---|
US (1) | US5450007A (no) |
EP (1) | EP0604493A1 (no) |
JP (1) | JPH06510857A (no) |
AU (2) | AU652667B2 (no) |
DE (1) | DE604493T1 (no) |
ES (1) | ES2058051T1 (no) |
FI (1) | FI935017A (no) |
GB (3) | GB2287544B (no) |
GR (1) | GR940300076T1 (no) |
HK (1) | HK120796A (no) |
NO (1) | NO940846L (no) |
WO (1) | WO1993006493A1 (no) |
ZA (1) | ZA927013B (no) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5483656A (en) * | 1993-01-14 | 1996-01-09 | Apple Computer, Inc. | System for managing power consumption of devices coupled to a common bus |
GB2285694B (en) * | 1993-03-13 | 1997-05-21 | Ampy Automation Digilog | Power Measuring Method |
GB2285693B (en) * | 1993-03-13 | 1997-05-21 | Ampy Automation Digilog | Power Measuring Methods |
AU4519596A (en) * | 1994-12-22 | 1996-07-10 | Intel Corporation | Power budgeting with device specific characterization of power consumption |
US6291985B1 (en) * | 1995-10-16 | 2001-09-18 | E. William Bush | Demand-relay-reporting electronic wattmeter without a current transformer sensor |
US5726901A (en) * | 1996-01-25 | 1998-03-10 | Dell Usa, L.P. | System for reporting computer energy consumption |
US5710503A (en) * | 1996-02-01 | 1998-01-20 | Aims Systems, Inc. | On-line battery monitoring system with defective cell detection capability |
GB2312962B (en) * | 1996-04-18 | 2000-11-15 | Siemens Measurements Ltd | Improvements in or relating to commodity meters |
US6067029A (en) * | 1997-03-04 | 2000-05-23 | Durston; Tom | Power check meter |
FR2766304B1 (fr) * | 1997-07-17 | 1999-10-01 | Schlumberger Ind Sa | Circuit d'alimentation pour un compteur d'electricite |
US6262672B1 (en) * | 1998-08-14 | 2001-07-17 | General Electric Company | Reduced cost automatic meter reading system and method using locally communicating utility meters |
IT1304989B1 (it) * | 1998-09-15 | 2001-04-05 | Urmet Costruzioni Elettro Tele | Perfezionamento ai sistemi per la trasmissione bidirezionale, senzacontatti, di dati ed energia tra un lettore ed una carta chip, |
FR2793030B1 (fr) * | 1999-04-30 | 2001-06-15 | Schneider Electric Ind Sa | Dispositif de controle d'energie a prepaiement comportant un shunt de mesure |
US6529883B1 (en) * | 1999-08-20 | 2003-03-04 | Motorola, Inc. | Prepayment energy metering system with two-way smart card communications |
CN2397497Y (zh) * | 1999-11-23 | 2000-09-20 | 北京科博智能仪表有限责任公司 | 具有新型电源模块的电度表 |
US6735535B1 (en) * | 2000-05-05 | 2004-05-11 | Electro Industries/Gauge Tech. | Power meter having an auto-calibration feature and data acquisition capabilities |
BG64684B1 (bg) * | 2001-05-08 | 2005-11-30 | "Уникоммикросистеми" Еоод | Устройство за измерване и контрол на консумацията на активна електроенергия |
EP1278073A1 (de) * | 2001-07-20 | 2003-01-22 | ENSECO GmbH | Einrichtung zur Messung des fliessenden elektrischen Stromes in mindestens einem elektrischen Leiter und Verfahren zur Fehlerkorrektur von solchen Einrichtungen |
EP1278071A3 (de) * | 2001-07-20 | 2004-02-11 | ENSECO GmbH | Einrichtung zur Messung des fliessenden elektrischen Stromes in mindestens einem elektrischen Leiter und Verfahren zur Fehlerkorrektur von solchen Einrichtungen |
KR100471181B1 (ko) * | 2002-08-20 | 2005-03-10 | 삼성전자주식회사 | 소모 전력에 따라 동작 성능을 최적화할 수 있는 집적회로 장치 |
US20050030015A1 (en) * | 2003-07-22 | 2005-02-10 | Airak, Inc. | System and method for distributed monitoring of surroundings using telemetry of data from remote sensors |
US9080894B2 (en) | 2004-10-20 | 2015-07-14 | Electro Industries/Gauge Tech | Intelligent electronic device for receiving and sending data at high speeds over a network |
US7304586B2 (en) | 2004-10-20 | 2007-12-04 | Electro Industries / Gauge Tech | On-line web accessed energy meter |
US7747733B2 (en) | 2004-10-25 | 2010-06-29 | Electro Industries/Gauge Tech | Power meter having multiple ethernet ports |
US7271996B2 (en) * | 2004-12-03 | 2007-09-18 | Electro Industries/Gauge Tech | Current inputs interface for an electrical device |
US8160824B2 (en) | 2005-01-27 | 2012-04-17 | Electro Industries/Gauge Tech | Intelligent electronic device with enhanced power quality monitoring and communication capabilities |
US8190381B2 (en) | 2005-01-27 | 2012-05-29 | Electro Industries/Gauge Tech | Intelligent electronic device with enhanced power quality monitoring and communications capabilities |
US8620608B2 (en) | 2005-01-27 | 2013-12-31 | Electro Industries/Gauge Tech | Intelligent electronic device and method thereof |
GB2424286B (en) * | 2005-03-18 | 2009-07-01 | Polymeters Response Internat L | Tamper proof utility metering |
GB2431475A (en) * | 2005-10-21 | 2007-04-25 | Areva T & D Uk Ltd | Power transmission system sampling module |
GB0624599D0 (en) * | 2006-12-09 | 2007-01-17 | Aeristech Ltd | Engine induction system |
US7920976B2 (en) | 2007-03-27 | 2011-04-05 | Electro Industries / Gauge Tech. | Averaging in an intelligent electronic device |
US9989618B2 (en) | 2007-04-03 | 2018-06-05 | Electro Industries/Gaugetech | Intelligent electronic device with constant calibration capabilities for high accuracy measurements |
US10845399B2 (en) | 2007-04-03 | 2020-11-24 | Electro Industries/Gaugetech | System and method for performing data transfers in an intelligent electronic device |
US20130275066A1 (en) | 2007-04-03 | 2013-10-17 | Electro Industries/Gaugetech | Digital power metering system |
US20100283453A1 (en) * | 2009-05-05 | 2010-11-11 | POWRtec | Methods for Calibrating an Electric Meter |
US8907658B2 (en) | 2012-04-19 | 2014-12-09 | Kohler, Inc. | System and method of measuring power produced by a power source |
RU2533746C2 (ru) * | 2013-02-27 | 2014-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Рыбинский государственный авиационный технический университет имени П.А. Соловьева" | Цифровой измеритель мощности |
US10161973B2 (en) * | 2014-04-25 | 2018-12-25 | Eurotherm Ltd | System and method for measuring active power in a load without a load voltage |
US9000753B1 (en) | 2014-07-14 | 2015-04-07 | International Technological University | Smart meter voltage and current sensing using optically coupled isolators |
US9383223B2 (en) | 2014-07-14 | 2016-07-05 | International Technological University | Smart meter system architecture |
US9612133B2 (en) | 2014-07-14 | 2017-04-04 | International Technological University | Smart meter system communication methods |
FR3028619A1 (fr) * | 2014-11-18 | 2016-05-20 | Sagemcom Energy & Telecom Sas | Compteur d'energie electrique comprenant un shunt de mesure |
CN110244116B (zh) * | 2018-03-19 | 2024-04-26 | 深圳市航智精密电子有限公司 | 直流瞬时功率的计量电路及其准同步计算方法 |
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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE791143A (fr) * | 1971-11-09 | 1973-03-01 | Landis & Gyr Ag | Circuit de mesure d'energie electrique |
CH551013A (de) * | 1972-06-07 | 1974-06-28 | Landis & Gyr Ag | Schaltungsanordnung zur produktbildung aus spannung und strom zwecks messung elektrischer energie. |
US4250449A (en) * | 1978-11-24 | 1981-02-10 | Westinghouse Electric Corp. | Digital electric energy measuring circuit |
JPS5994166A (ja) * | 1982-11-19 | 1984-05-30 | Casio Comput Co Ltd | 電子レジスタの登録方式 |
FR2551877B1 (fr) * | 1983-09-13 | 1986-01-31 | Enertec | Compteur d'energie electrique notamment pour la tres haute tension |
US4723212A (en) * | 1984-07-18 | 1988-02-02 | Catalina Marketing Corp. | Method and apparatus for dispensing discount coupons |
GB8426822D0 (en) * | 1984-10-23 | 1984-11-28 | Day S | Static electricity meter |
AU6425986A (en) * | 1985-10-18 | 1987-04-30 | Quantum Design Group Pty. Ltd. | Remote monitoring and surveillance system |
JPS62133596A (ja) * | 1985-12-05 | 1987-06-16 | 富士通株式会社 | 金銭登録機 |
US4801874A (en) * | 1987-02-27 | 1989-01-31 | Process Systems, Inc. | Method and apparatus for measuring electricity |
JPS6462795A (en) * | 1987-09-03 | 1989-03-09 | Tokyo Electric Co Ltd | Goods sales data processor |
-
1991
- 1991-09-19 GB GB9506912A patent/GB2287544B/en not_active Expired - Fee Related
- 1991-09-19 GB GB9120012A patent/GB2259779B/en not_active Expired - Fee Related
- 1991-09-19 GB GB9506913A patent/GB2286250B/en not_active Expired - Fee Related
-
1992
- 1992-09-11 AU AU25444/92A patent/AU652667B2/en not_active Ceased
- 1992-09-11 EP EP92919204A patent/EP0604493A1/en not_active Withdrawn
- 1992-09-11 US US08/122,503 patent/US5450007A/en not_active Expired - Fee Related
- 1992-09-11 WO PCT/GB1992/001664 patent/WO1993006493A1/en not_active Application Discontinuation
- 1992-09-11 JP JP5505870A patent/JPH06510857A/ja active Pending
- 1992-09-11 ES ES92919204T patent/ES2058051T1/es active Pending
- 1992-09-11 DE DE0604493T patent/DE604493T1/de active Pending
- 1992-09-14 ZA ZA927013A patent/ZA927013B/xx unknown
-
1993
- 1993-11-12 FI FI935017A patent/FI935017A/fi not_active Application Discontinuation
-
1994
- 1994-03-10 NO NO940846A patent/NO940846L/no unknown
- 1994-06-28 AU AU66020/94A patent/AU6602094A/en not_active Abandoned
- 1994-11-30 GR GR940300076T patent/GR940300076T1/el unknown
-
1996
- 1996-07-11 HK HK120796A patent/HK120796A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU652667B2 (en) | 1994-09-01 |
WO1993006493A1 (en) | 1993-04-01 |
FI935017A0 (fi) | 1993-11-12 |
NO940846D0 (no) | 1994-03-10 |
GB2286250A (en) | 1995-08-09 |
GB9120012D0 (en) | 1991-11-06 |
ES2058051T1 (es) | 1994-11-01 |
GR940300076T1 (en) | 1994-11-30 |
GB2259779B (en) | 1996-04-03 |
FI935017A (fi) | 1993-11-12 |
AU2544492A (en) | 1993-04-27 |
GB9506913D0 (en) | 1995-05-24 |
DE604493T1 (de) | 1995-06-14 |
US5450007A (en) | 1995-09-12 |
GB9506912D0 (en) | 1995-05-24 |
EP0604493A1 (en) | 1994-07-06 |
GB2287544A (en) | 1995-09-20 |
ZA927013B (en) | 1993-06-22 |
AU6602094A (en) | 1994-09-08 |
GB2287544B (en) | 1996-04-03 |
GB2259779A (en) | 1993-03-24 |
GB2286250B (en) | 1996-04-03 |
HK120796A (en) | 1996-07-19 |
JPH06510857A (ja) | 1994-12-01 |
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