WO2005085880A3 - Electrical power meter - Google Patents

Electrical power meter Download PDF

Info

Publication number
WO2005085880A3
WO2005085880A3 PCT/EP2004/014920 EP2004014920W WO2005085880A3 WO 2005085880 A3 WO2005085880 A3 WO 2005085880A3 EP 2004014920 W EP2004014920 W EP 2004014920W WO 2005085880 A3 WO2005085880 A3 WO 2005085880A3
Authority
WO
WIPO (PCT)
Prior art keywords
live
electrical power
terminal
voltage
meter
Prior art date
Application number
PCT/EP2004/014920
Other languages
French (fr)
Other versions
WO2005085880A2 (en
Inventor
Andrew Stevens
David Mackie
Original Assignee
Actaris Uk Ltd
Andrew Stevens
David Mackie
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 Actaris Uk Ltd, Andrew Stevens, David Mackie filed Critical Actaris Uk Ltd
Publication of WO2005085880A2 publication Critical patent/WO2005085880A2/en
Publication of WO2005085880A3 publication Critical patent/WO2005085880A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

The present invention relates to the field of shunt based electrical power meter. Said meter (10) comprises Live In and Live Out terminals LI and LO adapted to be series connected in the live wire of the electrical power distribution circuit, a neutral terminal N adapted to be connected to the neutral wire of the electrical power distribution circuit, a voltage sensor in order to generate a signal responsive to a voltage provided to said load, a current sensor in order to generate a signal responsive to a current provided to said load, said current sensor being a shunt resistor R8h connected between said Live In LI and Live Out LO terminals, a voltage test terminal VTT adapted to be connected to one terminal of the voltage source of a test rack. Said meter (10) further comprises a resistor Rtt connected permanently between said voltage test terminal VTT and said Live In terminal LI.
PCT/EP2004/014920 2003-12-31 2004-12-17 Electrical power meter WO2005085880A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0330239.5 2003-12-31
GB0330239A GB2409732A (en) 2003-12-31 2003-12-31 Electrical power meter with adaptation for testing

Publications (2)

Publication Number Publication Date
WO2005085880A2 WO2005085880A2 (en) 2005-09-15
WO2005085880A3 true WO2005085880A3 (en) 2006-01-19

Family

ID=31503337

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/014920 WO2005085880A2 (en) 2003-12-31 2004-12-17 Electrical power meter

Country Status (2)

Country Link
GB (1) GB2409732A (en)
WO (1) WO2005085880A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102236086B (en) * 2010-04-29 2013-07-03 杭州市电力局 Method and device for inspecting electric energy meter
CN102608556A (en) * 2012-05-04 2012-07-25 山东电力集团公司枣庄供电公司 Combined type current boosting box
CN104569572A (en) * 2014-12-04 2015-04-29 芜湖恒美电热器具有限公司 Testing machine for power of air conditioning ducts
CN110532505B (en) * 2019-08-07 2023-08-22 深圳供电局有限公司 Method for calculating misalignment rate of ammeter
CN112748388A (en) * 2019-10-29 2021-05-04 国网宁夏电力有限公司电力科学研究院 Test system and test method for intelligent electric meter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5264786A (en) * 1990-12-07 1993-11-23 Schlumberger Industries Electrical device for measuring electrical parameters
US6014021A (en) * 1996-02-01 2000-01-11 Sgs-Thomson Microelectronics S.A. Electricity meter using fuzzy logic circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5264786A (en) * 1990-12-07 1993-11-23 Schlumberger Industries Electrical device for measuring electrical parameters
US6014021A (en) * 1996-02-01 2000-01-11 Sgs-Thomson Microelectronics S.A. Electricity meter using fuzzy logic circuit

Also Published As

Publication number Publication date
GB2409732A (en) 2005-07-06
WO2005085880A2 (en) 2005-09-15
GB0330239D0 (en) 2004-02-04

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