CH600344A5 - - Google Patents

Info

Publication number
CH600344A5
CH600344A5 CH1172975A CH1172975A CH600344A5 CH 600344 A5 CH600344 A5 CH 600344A5 CH 1172975 A CH1172975 A CH 1172975A CH 1172975 A CH1172975 A CH 1172975A CH 600344 A5 CH600344 A5 CH 600344A5
Authority
CH
Switzerland
Application number
CH1172975A
Inventor
Miran Milkovic
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of CH600344A5 publication Critical patent/CH600344A5/xx

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
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/08—Circuits for altering the measuring range
    • G01R15/09—Autoranging circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
CH1172975A 1974-09-13 1975-09-10 CH600344A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/505,721 US3976941A (en) 1974-09-13 1974-09-13 Auto-ranging system for an electronic energy meter

Publications (1)

Publication Number Publication Date
CH600344A5 true CH600344A5 (de) 1978-06-15

Family

ID=24011549

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1172975A CH600344A5 (de) 1974-09-13 1975-09-10

Country Status (5)

Country Link
US (1) US3976941A (de)
JP (1) JPS5154469A (de)
CA (1) CA1035840A (de)
CH (1) CH600344A5 (de)
DE (1) DE2539344A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056775A (en) * 1977-01-07 1977-11-01 General Electric Company Electronic kWh meter having internal power supply and error correction system
US4092592A (en) * 1977-01-07 1978-05-30 General Electric Company Electronic kWh meter having virtual ground isolation
US4079313A (en) * 1977-04-18 1978-03-14 Allen-Bradley Company Digital watts transducer
CH619543A5 (de) * 1978-01-25 1980-09-30 Electricite Neuchateloise Sa
DE2831407C3 (de) * 1978-07-17 1986-06-19 Siemens AG, 1000 Berlin und 8000 München Elektronische Meßeinrichtung für analoge elektrische Signale
US4288744A (en) * 1979-07-19 1981-09-08 Allen-Bradley Company Summing watt-hour transducer
US4360879A (en) * 1980-08-28 1982-11-23 The Valeron Corporation Power measuring device
US4814996A (en) * 1982-06-10 1989-03-21 Futures Technology, Ltd. Portable energy cost calculation
US4486707A (en) * 1982-09-24 1984-12-04 Sangamo Weston, Inc. Gain switching device with reduced error for watt meter
DE3329761A1 (de) * 1983-08-17 1985-02-28 Siemens AG, 1000 Berlin und 8000 München Elektronischer elektrizitaetszaehler mit automatischer messbereichserweiterung
FR2617310A1 (fr) * 1987-06-26 1988-12-30 Kalfon Rene Dispositif centralise de comptage notamment de consommations d'energie electrique
US5457621A (en) * 1992-02-21 1995-10-10 Abb Power T&D Company Inc. Switching power supply having voltage blocking clamp
US5537029A (en) 1992-02-21 1996-07-16 Abb Power T&D Company Inc. Method and apparatus for electronic meter testing
SE506168C2 (sv) * 1996-01-17 1997-11-17 Allgon Ab Sätt och anordning för mätning av reflektionsförlusten hos en radiofrekvent signal
DE19638393C1 (de) * 1996-09-19 1997-12-11 Siemens Ag Schaltungsanordnung zur Widerstands- und Leckmessung sowie deren Verwendung
CN1179212C (zh) 1996-10-22 2004-12-08 Abb公司 带有电源质量监视和诊断系统的电表
US7227350B2 (en) 2004-03-18 2007-06-05 Elster Electricity, Llc Bias technique for electric utility meter
US7315162B2 (en) 2004-03-18 2008-01-01 Elster Electricity, Llc Reducing power consumption of electrical meters
US7355867B2 (en) 2004-08-17 2008-04-08 Elster Electricity, Llc Power supply for an electric meter having a high-voltage regulator that limits the voltage applied to certain components below the normal operating input voltage
JP6339890B2 (ja) * 2014-08-05 2018-06-06 アルプス電気株式会社 電流センサ
US11774469B2 (en) 2021-05-06 2023-10-03 Jetperch Llc Auto ranging ammeter with accurate measurement during range changes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140408A (en) * 1962-06-20 1964-07-07 Products Inc Comp Switch with plural inputs to, and plural feedback paths from, an operational amplifier
US3346697A (en) * 1965-12-28 1967-10-10 Bell Telephone Labor Inc Time division hybrid with bilateral gain
US3516002A (en) * 1967-05-02 1970-06-02 Hughes Aircraft Co Gain and drift compensated amplifier
US3780273A (en) * 1972-06-12 1973-12-18 Leeds & Northrup Co Analog-to-digital wattmeter multiplier

Also Published As

Publication number Publication date
DE2539344A1 (de) 1976-04-01
US3976941A (en) 1976-08-24
JPS5154469A (de) 1976-05-13
CA1035840A (en) 1978-08-01

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Legal Events

Date Code Title Description
PL Patent ceased