CA2232906A1 - A two-element energy meter having systems for automatic service type detection - Google Patents

A two-element energy meter having systems for automatic service type detection

Info

Publication number
CA2232906A1
CA2232906A1 CA002232906A CA2232906A CA2232906A1 CA 2232906 A1 CA2232906 A1 CA 2232906A1 CA 002232906 A CA002232906 A CA 002232906A CA 2232906 A CA2232906 A CA 2232906A CA 2232906 A1 CA2232906 A1 CA 2232906A1
Authority
CA
Canada
Prior art keywords
meter
service type
voltage
external potential
service
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.)
Granted
Application number
CA002232906A
Other languages
French (fr)
Other versions
CA2232906C (en
Inventor
Scott T. Holdsclaw
Rodney C. Hemminger
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.)
Elster Solutions LLC
Original Assignee
ABB Power T&D Co 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
Application filed by ABB Power T&D Co Inc filed Critical ABB Power T&D Co Inc
Publication of CA2232906A1 publication Critical patent/CA2232906A1/en
Application granted granted Critical
Publication of CA2232906C publication Critical patent/CA2232906C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • 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

Abstract

A 2-element, three voltage connection electronic energy meter is disclosed for measuring 3-phase electrical energy supplied by a 4-wire delta service without external potential transformers. The meter employs non-isolating voltagesensors for sensing the line voltages and includes and an automatic service type detector and isolation detector. The meter generates voltage and phase angle measurements for each of the two voltages sensed by the meter. The service type detector compares the phase angles to automatically determine the service type supplying the electrical energy to the meter. The isolation detector compares the two voltages to automatically determine whether or not the installation includes external potential transformers. If the service type is a 4-wire delta service and no external potential transformers are used at the installation for isolating the voltage signals, the meter doubles the voltage measured over the first of the two elements when generating power measurements.
CA002232906A 1997-05-09 1998-03-24 A two-element energy meter having systems for automatic service type detection Expired - Lifetime CA2232906C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/853,518 1997-05-09
US08/853,518 US6141626A (en) 1997-05-09 1997-05-09 Two-element energy meter having systems for automatic service type detection

Publications (2)

Publication Number Publication Date
CA2232906A1 true CA2232906A1 (en) 1998-11-09
CA2232906C CA2232906C (en) 2003-10-28

Family

ID=25316254

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002232906A Expired - Lifetime CA2232906C (en) 1997-05-09 1998-03-24 A two-element energy meter having systems for automatic service type detection

Country Status (2)

Country Link
US (1) US6141626A (en)
CA (1) CA2232906C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5631554A (en) * 1993-03-26 1997-05-20 Schlumberger Industries, Inc. Electronic metering device including automatic service sensing
US6112158A (en) * 1996-08-01 2000-08-29 Siemens Power Transmission & Distribution, Llc Service type recognition in electrical utility meter
RO120431B1 (en) * 1996-10-22 2006-01-30 Abb Power T & D Company Inc. Electric energy meter
FI108167B (en) * 2000-03-21 2001-11-30 Abb T & D Tech Ltd Measurement of electrical conductivity
US6529013B2 (en) 2001-05-31 2003-03-04 Mcgraw-Edison Company Three-phase voltage sensor with active crosstalk cancellation
US6717395B2 (en) 2001-05-31 2004-04-06 Mcgraw-Edison Company Current transformer based high voltage measurement apparatus
US7756651B2 (en) * 2006-05-05 2010-07-13 Elster Electricity, Llc Fractional sampling of electrical energy
US7747400B2 (en) * 2006-10-06 2010-06-29 Landis+Gyr, Inc. VA metering in polyphase systems
CN101464501B (en) * 2007-12-20 2011-12-14 上海联能仪表有限公司 Calibrating apparatus for electric energy quality test analyzer
US9612270B2 (en) * 2015-03-10 2017-04-04 Cooper Technologies Company Metering continuity tester
WO2017168434A1 (en) * 2016-03-28 2017-10-05 Khade Suresh Pandurang Method for measuring two-phase energy
US11061056B2 (en) * 2019-02-11 2021-07-13 Landis+Gyr Innovations, Inc. Voltage rating validator for advanced metering
US11061055B2 (en) * 2019-03-15 2021-07-13 Analog Devices International Unlimited Company Three-phase power meter monitoring for star and delta configurations
ES2921405B2 (en) * 2022-07-11 2023-03-01 Univ Valencia Politecnica Use of currents, procedure and device for the analysis of a 4WD transformer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083000A (en) * 1976-09-07 1978-04-04 Sangamo Weston, Inc. Rotating disc multielement polyphase meter
US4689752A (en) * 1983-04-13 1987-08-25 Niagara Mohawk Power Corporation System and apparatus for monitoring and control of a bulk electric power delivery system
US4892485A (en) * 1988-06-16 1990-01-09 Patton Victor L Adapter plate for converting a three phase meter socket for use with a single phase watt hour meter
US5059896A (en) * 1989-09-25 1991-10-22 General Electric Company Electronic watthour meter
US5006783A (en) * 1989-10-16 1991-04-09 General Signal Corporation Three phase voltage regulator system using tertiary winding transformer
US5229713A (en) * 1991-04-25 1993-07-20 General Electric Company Method for determining electrical energy consumption
US5391983A (en) * 1991-10-08 1995-02-21 K C Corp. Solid state electric power usage meter and method for determining power usage
US5457621A (en) * 1992-02-21 1995-10-10 Abb Power T&D Company Inc. Switching power supply having voltage blocking clamp
MX9206230A (en) * 1992-02-21 1993-09-01 Abb Power T & D Co IMPROVEMENTS IN AN ELECTRICAL ACTIVITY METER AND METHODS FOR THE USE OF THE SAME.
US5321600A (en) * 1992-10-26 1994-06-14 Hughes Aircraft Company Delta connected three phase AC-DC converter with power factor correction circuits

Also Published As

Publication number Publication date
CA2232906C (en) 2003-10-28
US6141626A (en) 2000-10-31

Similar Documents

Publication Publication Date Title
CA2232906A1 (en) A two-element energy meter having systems for automatic service type detection
US8659286B2 (en) Apparatus for calibrated non-invasive measurement of electrical current
US8461823B2 (en) System for metering electricity by integrating in-phase current
US8930152B2 (en) Whole structure contactless power consumption sensing
KR101143024B1 (en) Apparatus and method for detecting leak current
US8159210B2 (en) System for automatically detecting power system configuration
KR101645873B1 (en) Apparatus and method for detecting wrong wiring of watt-hour meter
EP3081947B1 (en) A system for monitoring a medium voltage network
CA2240514A1 (en) Robust electrical utility meter
WO1998018013A3 (en) Energy meter with power quality monitoring and diagnostic systems
CA1254619A (en) Low cost self-contained transformerless solid state electronic watthour meter having thin film ferromagnetic current sensor
US11137422B2 (en) System and method for monitoring voltage in a cable
US7635972B2 (en) Rechargeable powering system in an electricity meter
CA2689776C (en) System for accurately detecting electricity theft
GB2424286A (en) Tamper proof utility metering
SE9503787L (en) Control measurement system for control measurement of energy measurement systems
WO1997020222A3 (en) Process and device for measuring a quantity, in particular an electric current, with a high measurement resolution
WO1999035506A3 (en) Expansion module for modular meter
KR101117870B1 (en) Apparatus and method for detecting leak current
EP1001270A3 (en) Method for testing a ground connection
CA2297066A1 (en) System for measuring the alternating current equivalent series resistance of a conductor
CA2303603A1 (en) Voltage sensing arrangement
Mizutani et al. Development of a distribution line state monitoring and controling system by combination of remote control switches with new optical current sensors
JPH04131780U (en) Pulse detector with multiple input/output synthesis function
JPH09113547A (en) Electric power measuring transducer

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20180326