CA1253968A - Power metering system and method - Google Patents

Power metering system and method

Info

Publication number
CA1253968A
CA1253968A CA000460125A CA460125A CA1253968A CA 1253968 A CA1253968 A CA 1253968A CA 000460125 A CA000460125 A CA 000460125A CA 460125 A CA460125 A CA 460125A CA 1253968 A CA1253968 A CA 1253968A
Authority
CA
Canada
Prior art keywords
signal
clock
amplifier
output
input
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
CA000460125A
Other languages
English (en)
French (fr)
Inventor
Michael A. Robinton
Alan H. Starkie
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.)
ROBINTON PRODUCTS Inc
Original Assignee
ROBINTON PRODUCTS Inc
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
Priority claimed from US06/518,832 external-priority patent/US4573037A/en
Priority claimed from US06/518,820 external-priority patent/US4542354A/en
Priority claimed from US06/543,095 external-priority patent/US4709375A/en
Application filed by ROBINTON PRODUCTS Inc filed Critical ROBINTON PRODUCTS Inc
Application granted granted Critical
Publication of CA1253968A publication Critical patent/CA1253968A/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplitude Modulation (AREA)
CA000460125A 1983-08-01 1984-07-31 Power metering system and method Expired CA1253968A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US518,832 1983-08-01
US06/518,832 US4573037A (en) 1983-08-01 1983-08-01 Analog-to digital converter and method
US518,820 1983-08-01
US06/518,820 US4542354A (en) 1983-08-01 1983-08-01 Delta-sigma pulse modulator with offset compensation
US53655883A 1983-09-27 1983-09-27
US536,558 1983-09-27
US06/543,095 US4709375A (en) 1983-09-27 1983-10-18 Digital phase selection system for signal multipliers
US543,095 1983-10-18

Publications (1)

Publication Number Publication Date
CA1253968A true CA1253968A (en) 1989-05-09

Family

ID=27504546

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000460125A Expired CA1253968A (en) 1983-08-01 1984-07-31 Power metering system and method

Country Status (9)

Country Link
CA (1) CA1253968A (sv)
CH (1) CH672847A5 (sv)
DE (5) DE3448184C2 (sv)
FR (4) FR2555318B1 (sv)
GB (5) GB2154329B (sv)
IT (1) IT1176528B (sv)
NL (1) NL8420205A (sv)
SE (5) SE452516B (sv)
WO (1) WO1985000711A1 (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240102A3 (en) * 1986-03-31 1988-07-27 Robinton Products Inc. Power meter having self-test function
DE3772501D1 (de) * 1986-09-19 1991-10-02 Siemens Ag Elektronischer elektrizitaetszaehler.
US4951052A (en) * 1989-07-10 1990-08-21 General Electric Company Correction of systematic error in an oversampled analog-to-digital converter
US5200752A (en) * 1991-07-18 1993-04-06 Hewlett-Packard Company Integrating analog to digital converter run-up method and system
DE9406292U1 (de) * 1993-12-09 1994-06-16 Siemens Ag Klemmenblock für ein elektrisches Gerät
DE19630605A1 (de) * 1996-07-29 1998-02-05 Tech Gmbh Antriebstechnik Und Multiplikationsschaltung für Leistungs-Meßgerät
EP0942271A1 (en) * 1998-03-10 1999-09-15 Oxford Instruments (Uk) Limited Improvements in resistance thermometry
DE19938779B4 (de) * 1999-08-16 2007-06-21 Siemens Ag Schaltung und Verfahren zur Bestimmung des Offsetfehlers bei einer offsetfehlerbehafteten Messung des Spulenstroms eines elektromagnetischen Stellgerätes

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3070786A (en) 1958-08-21 1962-12-25 Thompson Ramo Wooldridge Inc Drift compensating circuits
DE1207436B (de) * 1964-06-03 1965-12-23 Standard Elektrik Lorenz Ag Nichtlineares Codier- bzw. Decodier-System
US3461406A (en) * 1966-07-05 1969-08-12 Motorola Inc Delta modulator using operational integration
US3470471A (en) * 1968-05-31 1969-09-30 Canadian Patents Dev Polarity coincidence correlation method and apparatus for measuring electrical energy
US3895376A (en) * 1971-10-26 1975-07-15 Iwatsu Electric Co Ltd Dual slope integrating analog to digital converter
US3794917A (en) * 1972-03-09 1974-02-26 Esterline Corp Electronic watt transducer
US3859654A (en) * 1972-10-11 1975-01-07 Ibm Analog to digital converter for electrical signals
GB1373581A (en) * 1973-01-05 1974-11-13 Hunter R D Wattmeters
US3875508A (en) * 1973-09-07 1975-04-01 Gen Electric Metering electrical energy (kWh) in single phase systems
DE2348667B2 (de) * 1973-09-27 1975-08-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektronischer kWh-Zähler
US3914591A (en) * 1974-04-19 1975-10-21 Bell Telephone Labor Inc Analog electronic multiplier
US3942110A (en) * 1974-05-08 1976-03-02 General Electric Company Analog to pulse rate converter
US3955138A (en) * 1974-11-06 1976-05-04 General Electric Company Electronic energy consumption meter with input transformer having single resistance terminated secondary winding coupled to C-MOS switches driven by pulse width modulated control signals
US4009475A (en) * 1974-12-05 1977-02-22 Hybrid Systems Corporation Delta-sigma converter and decoder
US3975682A (en) * 1974-12-13 1976-08-17 Esterline Corporation Watt/watthour transducer and integrator and current sources therefor
US4217545A (en) * 1975-06-20 1980-08-12 Nihon Denki Keiki Kenteisho Electronic type polyphase electric energy meter
US4031532A (en) * 1975-12-29 1977-06-21 First David J Voltage to frequency converter
US4083043A (en) * 1976-02-18 1978-04-04 Trw Inc. High speed monolithic a/d converter utilizing strobe comparator
JPS535678A (en) * 1976-07-03 1978-01-19 Shoei Denki Kk Device for measuring active and reactive components of aac current or power
US4298984A (en) * 1976-10-06 1981-11-03 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Method and apparatus for improving error rate on radio teletype circuits
DE2656975C3 (de) * 1976-12-16 1979-09-27 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Verfahren zur Übertragung von modulierten Datensignalen mittels adaptiver Deltamodulation
DE2747385C2 (de) * 1977-10-21 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Elektronischer Wechselstromzähler
SE7810662L (sv) * 1978-01-24 1979-07-25 Zolotenko Vladimir A Anordning for nollnivakorrigerande forsterkning av en pulsspenning
US4291409A (en) * 1978-06-20 1981-09-22 The Mitre Corporation Spread spectrum communications method and apparatus
JPS581388B2 (ja) * 1978-07-06 1983-01-11 株式会社東芝 電力量計
US4182983A (en) * 1978-07-11 1980-01-08 Westinghouse Electric Corp. Electronic AC electric energy measuring circuit
US4203071A (en) * 1978-08-08 1980-05-13 The Charles Stark Draper Laboratory, Inc. Pseudo-random-number-code-detection and tracking system
DE2846598A1 (de) * 1978-10-26 1980-04-30 Stepper & Co Time-division-multiplizierer insbesondere zur messung der elektrischen leistung und energie
US4217546A (en) * 1978-12-11 1980-08-12 General Electric Company Electronic energy consumption meter and system with automatic error correction
JPS5948571B2 (ja) * 1979-01-29 1984-11-27 タケダ理研工業株式会社 アナログデジタル変換装置
US4275349A (en) * 1979-05-11 1981-06-23 Westinghouse Electric Corp. Watt and var transducer
US4291300A (en) * 1979-11-01 1981-09-22 Burroughs Corporation Tracking analog-to-digital converter for AC signals
US4322687A (en) * 1980-05-19 1982-03-30 Bell Telephone Laboratories, Incorporated Operational amplifier with improved offset correction
US4463311A (en) * 1980-05-29 1984-07-31 Tokyo Shibaura Denki Kabushiki Kaisha Electronic electric-energy meter
JPS571972A (en) 1980-06-04 1982-01-07 Toshiba Corp Electronic type electric energy meter
CA1199070A (en) * 1980-10-06 1986-01-07 Prentice G. Moore Electronic watt/var transducer
DE3110119A1 (de) * 1981-03-16 1982-09-23 EM Elektro-Mechanik GmbH, 5620 Velbert Energierichtungsanzeiger
US4495463A (en) * 1982-02-24 1985-01-22 General Electric Company Electronic watt and/or watthour measuring circuit having active load terminated current sensor for sensing current and providing automatic zero-offset of current sensor DC offset error potentials
US4485353A (en) * 1982-05-28 1984-11-27 Rca Corporation PLL Oscillator synchronizing system with matrix for phase correction

Also Published As

Publication number Publication date
SE8504816L (sv) 1985-10-16
GB2154329B (en) 1988-05-05
FR2555318A1 (fr) 1985-05-24
GB2178260A (en) 1987-02-04
GB8507289D0 (en) 1985-05-01
FR2555382A1 (fr) 1985-05-24
SE8504814L (sv) 1985-10-16
DE3448182C2 (sv) 1988-09-29
SE8504816D0 (sv) 1985-10-16
DE3448183C2 (sv) 1988-07-21
SE8504813L (sv) 1985-10-16
GB2154329A (en) 1985-09-04
GB2178261B (en) 1988-05-05
NL8420205A (nl) 1985-06-03
SE452516B (sv) 1987-11-30
CH672847A5 (sv) 1989-12-29
SE8504815L (sv) 1985-10-16
SE8504815D0 (sv) 1985-10-16
GB2178260B (en) 1988-05-05
IT8422167A0 (it) 1984-08-01
SE8504814D0 (sv) 1985-10-16
DE3448185C2 (sv) 1988-03-24
DE3490349T1 (de) 1985-09-19
IT1176528B (it) 1987-08-18
FR2555318B1 (fr) 1989-03-03
GB8620426D0 (en) 1986-10-01
GB8620427D0 (en) 1986-10-01
GB2178261A (en) 1987-02-04
SE8504813D0 (sv) 1985-10-16
GB8620429D0 (en) 1986-10-01
GB2178545A (en) 1987-02-11
FR2555381A1 (fr) 1985-05-24
GB8620428D0 (en) 1986-10-01
SE8501603D0 (sv) 1985-04-01
FR2555379A1 (fr) 1985-05-24
WO1985000711A1 (en) 1985-02-14
SE8501603L (sv) 1985-04-01
DE3448184C2 (sv) 1989-11-23
SE453129B (sv) 1988-01-11
GB2178177B (en) 1988-05-05
GB2178545B (en) 1988-05-05
GB2178177A (en) 1987-02-04

Similar Documents

Publication Publication Date Title
US4542354A (en) Delta-sigma pulse modulator with offset compensation
US5017860A (en) Electronic meter digital phase compensation
US4182983A (en) Electronic AC electric energy measuring circuit
CA1246147A (en) Electronic circuit for measuring electrical energy
CA1246156A (en) Multiphase frequency selective phase locked loop with multiphase sinusoidal and digital outputs
CA1253968A (en) Power metering system and method
US4408283A (en) Time division multiplier transducer with digitally derived phase shift adjustment for reactive power and energy measurement
US4058768A (en) Two-way electronic kWh meter
US3976942A (en) Watt/watt hour transducer having current signals and a modulator therefor
US4204173A (en) Tuning circuit with provisions for reducing pulse width jitter
AU612574B2 (en) Gain switching device with reduced error for watt meter
EP0240102A2 (en) Power meter having self-test function
US4573037A (en) Analog-to digital converter and method
US4849704A (en) Duty cycle independent phase detector
GB2408808A (en) Electric power meter with phase shift compensation
US4800333A (en) Switched-capacitor watthour meter circuit having reduced capacitor ratio
US4808918A (en) Watthour meter comprising a Hall sensor and a voltage-frequency converter for very low voltages
US3961257A (en) Single phase 3-wire electronic electrical energy meter
EP0377282B1 (en) Electronic meter digital phase compensation
JP3026533B2 (ja) 無効電力量計
US4709375A (en) Digital phase selection system for signal multipliers
US5047915A (en) Unrestricted frequency converter for unbalanced loads
JPS6117071A (ja) 負荷の消費エネルギ−測定装置
EA001361B1 (ru) Схема умножения для устройства измерения мощности и способ измерения мгновенного значения мощности
JPH0711544B2 (ja) 電子式移相回路及び電子式無効電力量計

Legal Events

Date Code Title Description
MKEX Expiry