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FI954297A7 - Power meter - Google Patents

Power meter Download PDF

Info

Publication number
FI954297A7
FI954297A7 FI954297A FI954297A FI954297A7 FI 954297 A7 FI954297 A7 FI 954297A7 FI 954297 A FI954297 A FI 954297A FI 954297 A FI954297 A FI 954297A FI 954297 A7 FI954297 A7 FI 954297A7
Authority
FI
Finland
Prior art keywords
power meter
meter
power
Prior art date
Application number
FI954297A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI954297A0 (en
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 FI954297A0 publication Critical patent/FI954297A0/en
Publication of FI954297A7 publication Critical patent/FI954297A7/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00Arrangements for measuring electric power or power factor
    • G01R21/133Arrangements for measuring electric power or power factor by using digital technique
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/252Arrangements 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)
FI954297A 1993-03-13 1995-09-13 Power meter FI954297A7 (en)

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
FI954297A0 FI954297A0 (en) 1995-09-13
FI954297A7 true FI954297A7 (en) 1995-10-13

Family

ID=10732048

Family Applications (1)

Application Number Title Priority Date Filing Date
FI954297A FI954297A7 (en) 1993-03-13 1995-09-13 Power meter

Country Status (9)

Country Link
EP (1) EP0688434A1 (en)
JP (1) JPH08507609A (en)
AU (1) AU679729B2 (en)
ES (1) ES2081786T1 (en)
FI (1) FI954297A7 (en)
GB (3) GB2276011B (en)
GR (1) GR960300002T1 (en)
NO (1) NO953609D0 (en)
WO (1) WO1994022024A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285695B (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 (en) 1998-03-10 2002-06-10 株式会社東芝 Power calculation device
JP2007147334A (en) * 2005-11-24 2007-06-14 Jimbo Electric Co Ltd Digital display current monitoring unit
CN103353545B (en) * 2013-07-22 2015-06-10 国家电网公司 Voltage and current loop carrier wave isolation and attenuation equipment
CN103645457B (en) * 2013-12-20 2016-06-01 国家电网公司 A kind of on-site inspection device for electric energy meter
CN104459303B (en) * 2014-12-24 2016-06-01 国家电网公司 A kind of adaptively sampled line selection apparatus of double-bus
CN105487032A (en) * 2016-01-04 2016-04-13 国网山东省电力公司青岛供电公司 Verification device
US11442087B2 (en) * 2019-04-25 2022-09-13 Microchip Technology Incorporated Adaptive power measurement accumulator with a changing sampling frequency
CN110297124B (en) * 2019-08-06 2022-04-12 南方电网科学研究院有限责任公司 A non-grounded voltage measuring device and method
CN114942402B (en) * 2022-07-20 2022-11-29 武汉格蓝若智能技术有限公司 Abnormal electric energy meter positioning method and system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH551013A (en) * 1972-06-07 1974-06-28 Landis & Gyr Ag CIRCUIT ARRANGEMENT FOR PRODUCT FORMATION FROM VOLTAGE AND CURRENT FOR THE PURPOSE OF MEASURING ELECTRICAL ENERGY.
DE2839123C2 (en) * 1978-09-08 1980-10-23 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Voltage-frequency converter
EP0446962A3 (en) * 1986-04-11 1992-06-03 Schlumberger Industries, Inc. Solid state electricity meter display
JPS63246025A (en) * 1987-04-01 1988-10-13 Nec Corp Pulse frequency modulating circuit
GB2217027A (en) * 1988-04-05 1989-10-18 Omega Electric Ltd Active power measurement
GB2259779B (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
GB2285695B (en) * 1993-03-13 1997-05-21 Ampy Automation Digilog Power Measuring Method

Also Published As

Publication number Publication date
GB9305230D0 (en) 1993-04-28
NO953609L (en) 1995-09-13
GB2276011A (en) 1994-09-14
FI954297A0 (en) 1995-09-13
WO1994022024A1 (en) 1994-09-29
JPH08507609A (en) 1996-08-13
GB9506330D0 (en) 1995-05-17
AU6212894A (en) 1994-10-11
NO953609D0 (en) 1995-09-13
GB2276011B (en) 1997-05-14
GB2285693A (en) 1995-07-19
GB2285693B (en) 1997-05-21
GR960300002T1 (en) 1996-02-29
GB9506331D0 (en) 1995-05-17
AU679729B2 (en) 1997-07-10
GB2285692A (en) 1995-07-19
ES2081786T1 (en) 1996-03-16
EP0688434A1 (en) 1995-12-27

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Legal Events

Date Code Title Description
FD Application lapsed