CA2130434A1 - Method and Apparatus for Electronic Meter Testing - Google Patents

Method and Apparatus for Electronic Meter Testing

Info

Publication number
CA2130434A1
CA2130434A1 CA 2130434 CA2130434A CA2130434A1 CA 2130434 A1 CA2130434 A1 CA 2130434A1 CA 2130434 CA2130434 CA 2130434 CA 2130434 A CA2130434 A CA 2130434A CA 2130434 A1 CA2130434 A1 CA 2130434A1
Authority
CA
Canada
Prior art keywords
processor
units
energy
electrical energy
display
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
CA 2130434
Other languages
French (fr)
Other versions
CA2130434C (en
Inventor
Rodney C. Hemminger
Mark L. Munday
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
Rodney C. Hemminger
Mark L. Munday
Abb Power T & D Company Inc.
Asea Brown Boveri Inc.
Abb Inc.
Elster Electricity, L.L.C.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25280273&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2130434(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rodney C. Hemminger, Mark L. Munday, Abb Power T & D Company Inc., Asea Brown Boveri Inc., Abb Inc., Elster Electricity, L.L.C. filed Critical Rodney C. Hemminger
Priority to CA002287014A priority Critical patent/CA2287014C/en
Publication of CA2130434A1 publication Critical patent/CA2130434A1/en
Application granted granted Critical
Publication of CA2130434C publication Critical patent/CA2130434C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • 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
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
    • 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
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30—Smart metering, e.g. specially adapted for remote reading

Abstract

Methods and apparatus for electronically displaying metered electrical energy are disclosed. A first processor (14) receives voltage and current signals and determines electrical energy. The first processor (14) generates an energy signal representative of the electrical energy determination. A second processor (16);
connected to said first processor; receives the energy signal and generates a display signal representative of electrical energy information.
A display (30) is connected to receive the display signal and displays the electrical energy information. In a first embodiment it is preferred for the first processor (14) to determine units of electrical energy from the voltage and current signals and to generate an energy signal representative of the determination of such units and the rate at which the units are determined. In another embodiment the first processor determines and displays watt units, apparent reactive energy units and the rate at which such units are determined. The display (30) may provide energy flow direction information.
CA002130434A 1992-02-21 1992-11-05 Method and apparatus for electronic meter testing Expired - Lifetime CA2130434C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002287014A CA2287014C (en) 1992-02-21 1992-11-05 Method and apparatus for electronic meter testing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/839,634 US5537029A (en) 1992-02-21 1992-02-21 Method and apparatus for electronic meter testing
US839,634 1992-02-21
PCT/US1992/009632 WO1993017345A1 (en) 1992-02-21 1992-11-05 Method and apparatus for electronic meter testing

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002287014A Division CA2287014C (en) 1992-02-21 1992-11-05 Method and apparatus for electronic meter testing

Publications (2)

Publication Number Publication Date
CA2130434A1 true CA2130434A1 (en) 1993-09-02
CA2130434C CA2130434C (en) 2000-08-29

Family

ID=25280273

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002130434A Expired - Lifetime CA2130434C (en) 1992-02-21 1992-11-05 Method and apparatus for electronic meter testing

Country Status (13)

Country Link
US (7) US5537029A (en)
EP (3) EP0803741B2 (en)
CN (2) CN1053965C (en)
AU (1) AU675921B2 (en)
BR (1) BR9207087A (en)
CA (1) CA2130434C (en)
DE (3) DE69233475T2 (en)
ES (3) ES2239565T3 (en)
HK (2) HK1022949A1 (en)
MX (1) MX9206458A (en)
RU (1) RU2117305C1 (en)
UA (1) UA34450C2 (en)
WO (1) WO1993017345A1 (en)

Families Citing this family (185)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5831428A (en) * 1993-11-30 1998-11-03 Square D Company Metering unit with integrated user programmable logic
US5924051A (en) * 1994-12-16 1999-07-13 General Electric Company Demand meter having load profile recording capabilities
US5627759A (en) * 1995-05-31 1997-05-06 Process Systems, Inc. Electrical energy meters having real-time power quality measurement and reporting capability
US6291985B1 (en) * 1995-10-16 2001-09-18 E. William Bush Demand-relay-reporting electronic wattmeter without a current transformer sensor
US5742512A (en) * 1995-11-30 1998-04-21 General Electric Company Electronic electricity meters
US5673196A (en) * 1995-11-30 1997-09-30 General Electric Company Vector electricity meters and associated vector electricity metering methods
WO1997044679A1 (en) * 1996-05-20 1997-11-27 Southpower Limited Meter accuracy device
US6377037B1 (en) 1996-08-01 2002-04-23 Siemens Power Transmission And Distribution, Inc. Watt-hour meter with digital per-phase power factor compensation
US6043642A (en) * 1996-08-01 2000-03-28 Siemens Power Transmission & Distribution, Inc. Watt-hour meter with communication on diagnostic error detection
US6112158A (en) * 1996-08-01 2000-08-29 Siemens Power Transmission & Distribution, Llc Service type recognition in electrical utility meter
US6112159A (en) * 1996-08-01 2000-08-29 Siemens Power Transmission & Distribution, Llc Robust electrical utility meter
AU736045B2 (en) 1996-10-22 2001-07-26 Abb Inc. Energy meter with power quality monitoring and diagnostic systems
US8982856B2 (en) 1996-12-06 2015-03-17 Ipco, Llc Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods
US7054271B2 (en) * 1996-12-06 2006-05-30 Ipco, Llc Wireless network system and method for providing same
EA001654B1 (en) * 1997-05-19 2001-06-25 Шлюмбергер Ресорс Менеджмент Сервисез, Инк. Electronic revenue meter with automatic service sensing
US6081204A (en) * 1997-05-30 2000-06-27 General Electric Company Automated communication of electricity meter data
US6058354A (en) * 1997-08-25 2000-05-02 Electrowatt Technology Innovation Ag Electricity meter to measure electrical physical magnitudes which are parameters or functions of measured voltages and/or currents
US5835331A (en) * 1997-12-03 1998-11-10 Abb Power T&D Company Inc. Half-wave drive circuit for meter disconnect switch
US6470083B1 (en) 1997-12-24 2002-10-22 Abb Automation Inc. Telecommunications off-hook and intrusion detection method and apparatus
US6914893B2 (en) 1998-06-22 2005-07-05 Statsignal Ipc, Llc System and method for monitoring and controlling remote devices
US6437692B1 (en) 1998-06-22 2002-08-20 Statsignal Systems, Inc. System and method for monitoring and controlling remote devices
US8410931B2 (en) 1998-06-22 2013-04-02 Sipco, Llc Mobile inventory unit monitoring systems and methods
US6891838B1 (en) 1998-06-22 2005-05-10 Statsignal Ipc, Llc System and method for monitoring and controlling residential devices
US7103511B2 (en) * 1998-10-14 2006-09-05 Statsignal Ipc, Llc Wireless communication networks for providing remote monitoring of devices
US6128584A (en) * 1998-11-30 2000-10-03 Abb Power T&D Company Inc. System and method for frequency compensation in an energy meter
US7650425B2 (en) 1999-03-18 2010-01-19 Sipco, Llc System and method for controlling communication between a host computer and communication devices associated with remote devices in an automated monitoring system
US6459258B1 (en) 1999-06-30 2002-10-01 General Electric Company Methods and apparatus for controlling data flow in electricity meter
US6778920B1 (en) 1999-06-30 2004-08-17 General Electric Company Methods and apparatus for metering energy consumption
AU6059500A (en) 1999-06-30 2001-01-31 General Electric Company High function, user configurable electricity meter
AU6060800A (en) * 1999-06-30 2001-01-31 General Electric Company Electronic electricity meter including flash memory
CA2340879C (en) * 1999-06-30 2011-06-07 General Electric Company Methods and apparatus for updating firmware in an electronic electricity meter
BR0006867B1 (en) * 1999-06-30 2014-02-25 METHODS AND ELECTRIC METER FOR MEASURING ENERGY CONSUMPTION
US7065457B1 (en) 1999-06-30 2006-06-20 General Electric Company Methods and apparatus for updating firmware in an electronic electricity meter
WO2001001160A1 (en) 1999-06-30 2001-01-04 General Electric Company Methods and apparatus for defining meter data calculations in an electronic electricity meter
US6825776B2 (en) * 1999-08-09 2004-11-30 Power Measurement Ltd. External I/O and communications interface for a revenue meter
US6615147B1 (en) 1999-08-09 2003-09-02 Power Measurement Ltd. Revenue meter with power quality features
US6186842B1 (en) 1999-08-09 2001-02-13 Power Measurement Ltd. Revenue meter bayonet assembly and method of attachment
US6493644B1 (en) 1999-08-09 2002-12-10 Power Measurement Ltd. A-base revenue meter with power quality features
US6611922B2 (en) 1999-08-09 2003-08-26 Power Measurement, Ltd. Power system time synchronization device and method for sequence of event recording
US6798191B1 (en) 1999-08-09 2004-09-28 Power Measurement Ltd. Revenue meter with a graphic user interface being operative to display scalable objects
US6397155B1 (en) 1999-08-09 2002-05-28 Power Measurement Ltd. Method and apparatus for automatically controlled gain switching of monitors
US6873144B2 (en) * 2000-04-07 2005-03-29 Landis+Gyr Inc. Electronic meter having random access memory with passive nonvolatility
AU2001255401B2 (en) * 2000-04-14 2005-12-01 Current Technologies, Llc Digital communications utilizing medium voltage power distribution lines
US6998962B2 (en) 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
US7103240B2 (en) * 2001-02-14 2006-09-05 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US7248158B2 (en) * 2000-04-14 2007-07-24 Current Technologies, Llc Automated meter reading power line communication system and method
US6965302B2 (en) * 2000-04-14 2005-11-15 Current Technologies, Llc Power line communication system and method of using the same
WO2001084518A1 (en) * 2000-05-01 2001-11-08 Isc/Us, Inc. Data capture and logging with passive rf transmission
US6483291B1 (en) * 2000-05-26 2002-11-19 Chander P. Bhateja Apparatus for measuring electrical power consumption
US7125380B2 (en) * 2000-08-08 2006-10-24 Warsaw Orthopedic, Inc. Clamping apparatus and methods
US6836737B2 (en) * 2000-08-09 2004-12-28 Statsignal Systems, Inc. Systems and methods for providing remote monitoring of consumption for a utility meter
WO2002048750A2 (en) * 2000-12-15 2002-06-20 Current Technologies, Llc Interfacing fiber optic data with electrical power systems
US6738693B2 (en) * 2000-12-20 2004-05-18 Landis+Gyr Inc. Multiple virtual meters in one physical meter
EP1371219A4 (en) * 2001-02-14 2006-06-21 Current Tech Llc Data communication over a power line
US6611769B2 (en) * 2001-04-13 2003-08-26 Badger Meter, Inc. Meter register with programming and data port and meter input resolution factor
EP1278073A1 (en) * 2001-07-20 2003-01-22 ENSECO GmbH Device for measuring the electrical current flowing through at least an electrical conductor and method for error correction in such a device
EP1278071A3 (en) * 2001-07-20 2004-02-11 ENSECO GmbH Apparatus for measuring the electrical current circulating in at least one electrical conductor and method of correcting faults in such apparatus
US6815942B2 (en) * 2001-09-25 2004-11-09 Landis+Gyr, Inc. Self-calibrating electricity meter
US7480501B2 (en) 2001-10-24 2009-01-20 Statsignal Ipc, Llc System and method for transmitting an emergency message over an integrated wireless network
US8489063B2 (en) 2001-10-24 2013-07-16 Sipco, Llc Systems and methods for providing emergency messages to a mobile device
US7424527B2 (en) 2001-10-30 2008-09-09 Sipco, Llc System and method for transmitting pollution information over an integrated wireless network
EP1324454B1 (en) * 2001-12-21 2006-05-10 ABB Schweiz AG Determining an operational limit of a power transmission line
US7053756B2 (en) * 2001-12-21 2006-05-30 Current Technologies, Llc Facilitating communication of data signals on electric power systems
US6864674B2 (en) * 2002-06-17 2005-03-08 Measurements International Limited Loss measurement system
US7102478B2 (en) * 2002-06-21 2006-09-05 Current Technologies, Llc Power line coupling device and method of using the same
US6982611B2 (en) * 2002-06-24 2006-01-03 Current Technologies, Llc Power line coupling device and method of using the same
KR100445226B1 (en) * 2002-07-24 2004-08-21 한국전력공사 System for remotely reading an meter using data structure grouped
US6980090B2 (en) * 2002-12-10 2005-12-27 Current Technologies, Llc Device and method for coupling with electrical distribution network infrastructure to provide communications
US7064654B2 (en) * 2002-12-10 2006-06-20 Current Technologies, Llc Power line communication system and method of operating the same
US7075414B2 (en) * 2003-05-13 2006-07-11 Current Technologies, Llc Device and method for communicating data signals through multiple power line conductors
US6965303B2 (en) * 2002-12-10 2005-11-15 Current Technologies, Llc Power line communication system and method
US7436321B2 (en) * 2002-12-10 2008-10-14 Current Technologies, Llc Power line communication system with automated meter reading
US6980091B2 (en) * 2002-12-10 2005-12-27 Current Technologies, Llc Power line communication system and method of operating the same
WO2004061462A1 (en) * 2002-12-23 2004-07-22 Power Measurement Ltd. Power monitoring integrated circuit with communication interface
US7046124B2 (en) * 2003-01-21 2006-05-16 Current Technologies, Llc Power line coupling device and method of using the same
JP3966251B2 (en) * 2003-08-08 2007-08-29 オムロン株式会社 DC current detection circuit and DC ground fault current detection circuit
US7088239B2 (en) 2004-03-02 2006-08-08 Vann Basinger Method and apparatus for all-purpose, automatic remote utility meter reading, utility shut off, and hazard warning and correction
US8031650B2 (en) 2004-03-03 2011-10-04 Sipco, Llc System and method for monitoring remote devices with a dual-mode wireless communication protocol
US7756086B2 (en) 2004-03-03 2010-07-13 Sipco, Llc Method for communicating in dual-modes
US7315162B2 (en) * 2004-03-18 2008-01-01 Elster Electricity, Llc Reducing power consumption of electrical meters
US20060007016A1 (en) * 2004-07-09 2006-01-12 Centerpoint Energy, Inc. Utilities and communication integrator
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
CA2484742A1 (en) * 2004-09-28 2006-03-28 Veris Industries, Llc Electricity metering with a current transformer
US7994934B2 (en) 2004-10-05 2011-08-09 Electro Industries/Gauge Tech Meter having a communication interface for receiving and interfacing with a communication device
US7508190B2 (en) * 2004-10-20 2009-03-24 Electro Industries/Gauge Tech. Test pulses for enabling revenue testable panel meters
US20060082355A1 (en) * 2004-10-20 2006-04-20 Electro Industries/Gaugetech Test pulses for enabling revenue testable panel meters
US7388189B2 (en) * 2004-10-27 2008-06-17 Electro Industries/Gauge Tech System and method for connecting electrical devices using fiber optic serial communication
US7184904B2 (en) * 2005-01-20 2007-02-27 Electro Industries/Gaugetech System and method for providing universal additional functionality for power meters
US8581169B2 (en) * 2005-01-24 2013-11-12 Electro Industries/Gauge Tech System and method for data transmission between an intelligent electronic device and a remote device
US9439126B2 (en) 2005-01-25 2016-09-06 Sipco, Llc Wireless network protocol system and methods
US7627453B2 (en) 2005-04-26 2009-12-01 Current Communications Services, Llc Power distribution network performance data presentation system and method
US20060294224A1 (en) * 2005-06-27 2006-12-28 Square D Company Electrical power management system
US7769149B2 (en) * 2006-01-09 2010-08-03 Current Communications Services, Llc Automated utility data services system and method
US20080012724A1 (en) * 2006-01-30 2008-01-17 Corcoran Kevin F Power line communications module and method
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
WO2008076100A1 (en) * 2006-12-18 2008-06-26 Thomson Licensing Self-testing device component
DE102007001221B4 (en) * 2007-01-05 2011-09-22 Texas Instruments Deutschland Gmbh Polyphase electric energy meter
US7589516B2 (en) * 2007-01-05 2009-09-15 Texas Instruments Incorporated Poly-phase electric energy meter
US8373407B2 (en) * 2007-03-27 2013-02-12 Electro Industries/Gauge Tech Intelligent electronic device having improved analog output resolution
US8493231B2 (en) * 2007-09-07 2013-07-23 Power Measurement Ltd. Power meter having fault tolerance
CA2609619A1 (en) 2007-09-10 2009-03-10 Veris Industries, Llc Status indicator
CA2609629A1 (en) * 2007-09-10 2009-03-10 Veris Industries, Llc Current switch with automatic calibration
CA2609611A1 (en) * 2007-09-10 2009-03-10 Veris Industries, Llc Split core status indicator
US8854049B2 (en) * 2007-09-25 2014-10-07 Freescale Semiconductor, Inc. Timer unit, system, computer program product and method for testing a logic circuit
US20090125351A1 (en) * 2007-11-08 2009-05-14 Davis Jr Robert G System and Method for Establishing Communications with an Electronic Meter
US20090287428A1 (en) * 2008-05-13 2009-11-19 Elster Electricity, Llc Fractional samples to improve metering and instrumentation
CN101281243B (en) * 2008-05-20 2011-09-07 深圳市科陆电子科技股份有限公司 Device and method for testing equipotential closed loop electrical energy meter
US8212548B2 (en) 2008-06-02 2012-07-03 Veris Industries, Llc Branch meter with configurable sensor strip arrangement
US8421639B2 (en) 2008-11-21 2013-04-16 Veris Industries, Llc Branch current monitor with an alarm
US8421443B2 (en) 2008-11-21 2013-04-16 Veris Industries, Llc Branch current monitor with calibration
KR20110128830A (en) * 2009-01-26 2011-11-30 제네바 클린테크 인코포레이티드 Energy usage monitoring with remote display and automatic detection of appliance including graphical user interface
US8674544B2 (en) * 2009-01-26 2014-03-18 Geneva Cleantech, Inc. Methods and apparatus for power factor correction and reduction of distortion in and noise in a power supply delivery network
ES2379103B1 (en) * 2009-02-26 2013-03-01 Endesa Distribución Eléctrica, S.L.U DEVICE AND PROCEDURE FOR CHECKING STATIC METERS IN ELECTRICAL DISTRIBUTION NETWORKS.
US9335352B2 (en) * 2009-03-13 2016-05-10 Veris Industries, Llc Branch circuit monitor power measurement
US20100262395A1 (en) * 2009-04-08 2010-10-14 Manu Sharma System and Method for Determining a Phase Conductor Supplying Power to a Device
US20100262393A1 (en) * 2009-04-08 2010-10-14 Manu Sharma System and Method for Determining a Phase Conductor Supplying Power to a Device
WO2010129691A2 (en) 2009-05-07 2010-11-11 Powell Phillip W Voltage conservation using advanced metering infrastructure and substation centralized voltage control
JP2011080810A (en) * 2009-10-05 2011-04-21 Panasonic Electric Works Co Ltd Electric power meter
FR2954989B1 (en) 2010-01-07 2011-12-23 Mobile Comfort Holding METHOD AND SYSTEM FOR REMOTELY CONTROLLING A CERTIFIED MEASUREMENT CHAIN
CN102313880A (en) * 2010-07-09 2012-01-11 北京市电力公司 Method and system for testing local communication equipment of power utilization information acquisition system, and master station
KR101153504B1 (en) * 2010-09-30 2012-06-12 한국전력공사 Electronic watt-hour meter managing multiple input signal and method of calculating watt-hour
KR101133352B1 (en) * 2010-12-22 2012-04-19 한국전력공사 Electronic watt-hour meter and method of calculating watt-hour
TWI399564B (en) * 2011-01-14 2013-06-21 Finetek Co Ltd Phase difference correcting method of the power meter
US9146264B2 (en) 2011-02-25 2015-09-29 Veris Industries, Llc Current meter with on board memory
US10006948B2 (en) 2011-02-25 2018-06-26 Veris Industries, Llc Current meter with voltage awareness
US9329996B2 (en) 2011-04-27 2016-05-03 Veris Industries, Llc Branch circuit monitor with paging register
US9250308B2 (en) 2011-06-03 2016-02-02 Veris Industries, Llc Simplified energy meter configuration
US9410552B2 (en) 2011-10-05 2016-08-09 Veris Industries, Llc Current switch with automatic calibration
US9002670B2 (en) * 2011-12-16 2015-04-07 Basen Corporation Smartgrid energy-usage-data storage and presentation systems, devices, protocol, and processes including a storage distribution process
US8587399B2 (en) 2012-02-06 2013-11-19 Continental Control Systems, Llc Split-core current transformer
CN102608561A (en) * 2012-04-01 2012-07-25 贵州电力试验研究院 Electricity meter power consumption tester
CN103033790A (en) * 2012-12-25 2013-04-10 青岛乾程电子科技有限公司 Multifunctional on-line testing device of single-phase electricity meter
US9563218B2 (en) 2013-03-15 2017-02-07 Dominion Resources, Inc. Electric power system control with measurement of energy demand and energy efficiency using t-distributions
US9553453B2 (en) 2013-03-15 2017-01-24 Dominion Resources, Inc. Management of energy demand and energy efficiency savings from voltage optimization on electric power systems using AMI-based data analysis
US9678520B2 (en) 2013-03-15 2017-06-13 Dominion Resources, Inc. Electric power system control with planning of energy demand and energy efficiency using AMI-based data analysis
US9847639B2 (en) 2013-03-15 2017-12-19 Dominion Energy, Inc. Electric power system control with measurement of energy demand and energy efficiency
US9582020B2 (en) 2013-03-15 2017-02-28 Dominion Resources, Inc. Maximizing of energy delivery system compatibility with voltage optimization using AMI-based data control and analysis
RU2523109C1 (en) * 2013-03-20 2014-07-20 Олег Фёдорович Меньших Induction supply metre analyser
CN103383410A (en) * 2013-07-02 2013-11-06 重庆跃腾电器有限公司 Multifunctional power meter
US9495271B2 (en) 2014-01-29 2016-11-15 Freescale Semiconductor, Inc. Statistical power indication monitor for purpose of measuring power consumption
CN104090157B (en) * 2014-05-14 2017-10-17 贵州电力试验研究院 A kind of digital transformer substation independent measure system architecture method
CN104076198A (en) * 2014-07-03 2014-10-01 国网河南省电力公司平顶山供电公司 Maximum demand synchronous metering device for primary meter and secondary meter of transformer substation and metering method
US9548671B2 (en) * 2014-07-09 2017-01-17 Landis+Gyr, Inc. Voltage booster for utility meter
US10002266B1 (en) 2014-08-08 2018-06-19 Impinj, Inc. RFID tag clock frequency reduction during tuning
DE102014018809A1 (en) * 2014-12-19 2016-06-23 Emh Metering Gmbh & Co. Kg Transmission via a power grid with modulable consumer and electricity meter
CN104486665A (en) * 2014-12-31 2015-04-01 乐视致新电子科技（天津）有限公司 Remote assistance method and device of mobile terminal
CN104656054B (en) * 2015-03-19 2018-03-16 青岛元启工业智能技术有限公司 A kind of automatic brush slag of ammeter veneer and test device and method
CN105093167B (en) * 2015-04-01 2016-04-13 国家电网公司 Outdoor electrical energy meter fault automatic gauging terminal
US11516899B2 (en) 2015-05-27 2022-11-29 Electro Industries/Gauge Tech Devices, systems and methods for electrical utility submetering
US10585125B2 (en) 2015-05-27 2020-03-10 Electro Industries/ Gaugetech Devices, systems and methods for data transmission over a communication media using modular connectors
US10732656B2 (en) 2015-08-24 2020-08-04 Dominion Energy, Inc. Systems and methods for stabilizer control
CN105182022A (en) * 2015-10-27 2015-12-23 国网山东利津县供电公司 Electric quantity depositing device and method during meter installation, power connection and exchange
CN105527491A (en) * 2015-12-10 2016-04-27 重庆鸿引电子有限公司 Multifunctional power instrument
CN105510705A (en) * 2015-12-10 2016-04-20 重庆鸿引电子有限公司 Multifunctional electric power instrument
US10408911B2 (en) 2015-12-28 2019-09-10 Veris Industries, Llc Network configurable system for a power meter
US10371721B2 (en) 2015-12-28 2019-08-06 Veris Industries, Llc Configuration system for a power meter
US10371730B2 (en) 2015-12-28 2019-08-06 Veris Industries, Llc Branch current monitor with client level access
US10274572B2 (en) 2015-12-28 2019-04-30 Veris Industries, Llc Calibration system for a power meter
BR102016005943A2 (en) * 2016-03-17 2016-08-30 Cas Tecnologia S A optical device for data reception and transmission and calibration process of an optical device for data reception and transmission
CN106018899A (en) * 2016-07-08 2016-10-12 华立科技股份有限公司 Infrared wake-up intelligent electric meter processing method
RU2651610C1 (en) * 2016-12-27 2018-04-23 Акционерное Общество "Электротехнические заводы "Энергомера" Method for revealing the places of origin and magnitude of non-technical losses of energy in electrical networks by data of synchronous measurements
US11215650B2 (en) 2017-02-28 2022-01-04 Veris Industries, Llc Phase aligned branch energy meter
US11193958B2 (en) 2017-03-03 2021-12-07 Veris Industries, Llc Non-contact voltage sensor
US10705126B2 (en) 2017-05-19 2020-07-07 Veris Industries, Llc Energy metering with temperature monitoring
TR201711552A2 (en) * 2017-08-04 2017-12-21 Enerjisa Enerji Anonim Sirketi MOBILE COUNTER FAULT TEST DEVICE
WO2019036697A1 (en) 2017-08-18 2019-02-21 Carrier Corporation Wireless device battery optimization tool for consumers
US10298208B1 (en) * 2018-06-08 2019-05-21 Siemens Aktiengesellschaft Dynamic impedance system for an increased range of operation of an instrument transformer
KR102022024B1 (en) * 2018-05-08 2019-09-17 정연문 Electronic watt-hour meter
US11056981B2 (en) 2018-07-07 2021-07-06 Intelesol, Llc Method and apparatus for signal extraction with sample and hold and release
US11581725B2 (en) 2018-07-07 2023-02-14 Intelesol, Llc Solid-state power interrupters
US11671029B2 (en) 2018-07-07 2023-06-06 Intelesol, Llc AC to DC converters
US11205011B2 (en) 2018-09-27 2021-12-21 Amber Solutions, Inc. Privacy and the management of permissions
US11334388B2 (en) 2018-09-27 2022-05-17 Amber Solutions, Inc. Infrastructure support to enhance resource-constrained device capabilities
US10985548B2 (en) 2018-10-01 2021-04-20 Intelesol, Llc Circuit interrupter with optical connection
US11349296B2 (en) 2018-10-01 2022-05-31 Intelesol, Llc Solid-state circuit interrupters
WO2020131977A1 (en) 2018-12-17 2020-06-25 Intelesol, Llc Ac-driven light-emitting diode systems
US11551899B2 (en) 2019-05-18 2023-01-10 Amber Semiconductor, Inc. Intelligent circuit breakers with solid-state bidirectional switches
CN110361688A (en) * 2019-08-02 2019-10-22 国网天津市电力公司 A kind of high voltage customer three-phase intelligent electric-energy meter condition monitoring system and method
US11349297B2 (en) 2020-01-21 2022-05-31 Amber Solutions, Inc. Intelligent circuit interruption
EP4197086A1 (en) 2020-08-11 2023-06-21 Amber Semiconductor, Inc. Intelligent energy source monitoring and selection control system
CN112793420B (en) * 2021-01-15 2022-07-19 东风柳州汽车有限公司 Vehicle combination instrument initialization method, device, equipment and storage medium
DE102021103128A1 (en) 2021-02-10 2022-08-11 Audi Aktiengesellschaft Method of transmitting electrical energy over an electrical network and electricity meter

Family Cites Families (136)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724821A (en) 1954-07-19 1955-11-22 Schweitzer Mfg Co E Remote measuring system
US3569818A (en) 1969-07-22 1971-03-09 Hughes Aircraft Co Multiple output dc voltage regulator
FR2137239B2 (en) * 1970-10-26 1976-04-09 Schlumberger Compteurs
US3826985A (en) 1971-06-04 1974-07-30 Motorola Inc Self-powered tachometer circuit
US3794917A (en) 1972-03-09 1974-02-26 Esterline Corp Electronic watt transducer
CA1033393A (en) 1974-06-05 1978-06-20 Georges Le Couturier Thermoelectric heat pump
US3976941A (en) 1974-09-13 1976-08-24 General Electric Company Auto-ranging system for an electronic energy meter
US4158810A (en) 1974-10-21 1979-06-19 Leskovar Silvin M Telemetering post for measuring variables in a high-voltage overhead line
US4034292A (en) * 1976-02-18 1977-07-05 Westinghouse Electric Corporation Direction sensitive opto-electronic pulse initiator for electrical meters
US4213119A (en) 1976-04-29 1980-07-15 Energy Optics, Inc. Remote meter reading system providing demand readings and load control from conventional KWH meters
US4119948A (en) 1976-04-29 1978-10-10 Ernest Michael Ward Remote meter reading system
US4120031A (en) * 1976-07-19 1978-10-10 Energy Conservation Systems, Inc. Utility usage monitoring systems
US4156273A (en) 1976-10-07 1979-05-22 Sanyo Electric Co., Ltd. Protection of a switching regulator
US4092592A (en) 1977-01-07 1978-05-30 General Electric Company Electronic kWh meter having virtual ground isolation
US4077061A (en) 1977-03-25 1978-02-28 Westinghouse Electric Corporation Digital processing and calculating AC electric energy metering system
NL183424B (en) 1977-05-16 Enertec ELECTRONIC ENERGY METER.
US4131844A (en) 1977-05-19 1978-12-26 Sundstrand Corporation Static voltage balancer
US4096436A (en) 1977-05-23 1978-06-20 The Valeron Corporation Power monitor
US4156932A (en) 1977-07-05 1979-05-29 Honeywell Information Systems Inc. Programmable communications controller
US4186339A (en) 1978-01-20 1980-01-29 Curtis Instruments, Inc. Method and apparatus for measuring current, especially useful in multi-ampere systems
US4298839A (en) * 1978-03-31 1981-11-03 Westinghouse Electric Corp. Programmable AC electric energy meter having radiation responsive external data interface
US4156931A (en) 1978-05-25 1979-05-29 Digital Equipment Corporation Digital data communications device with standard option connection
US4209826A (en) 1978-06-14 1980-06-24 Coilcraft, Inc. Regulated switching mode power supply
US4415853A (en) * 1978-09-08 1983-11-15 Fisher Berish M Monitoring device and method for accurately determining and recording present demand of electrical energy
US4335445A (en) * 1979-02-26 1982-06-15 Kepco, Inc. System for interfacing computers with programmable power supplies
US4301508A (en) 1979-03-28 1981-11-17 Eaton Corp. Digital processing system for time-of-day and demand meter display
US4283772A (en) * 1979-03-30 1981-08-11 Westinghouse Electric Corp. Programmable time registering AC electric energy meter having electronic accumulators and display
US4291375A (en) * 1979-03-30 1981-09-22 Westinghouse Electric Corp. Portable programmer-reader unit for programmable time registering electric energy meters
US4399510A (en) 1979-04-03 1983-08-16 Nuclear Systems, Inc. System for monitoring utility usage
DE2938238A1 (en) 1979-09-21 1981-04-09 Siemens AG, 1000 Berlin und 8000 München ELECTRONIC THREE-PHASE ELECTRICITY METER FOR THE CAPACITOR TRANSFER METHOD
US4361877A (en) 1980-02-05 1982-11-30 Sangamo Weston, Inc. Billing recorder with non-volatile solid state memory
US4355361A (en) 1980-02-06 1982-10-19 Sangamo Weston, Inc. Data processor apparatus for multitariff meter
ATE12841T1 (en) 1980-02-07 1985-05-15 Schlumberger Electronics Uk ELECTRICITY COUNTER.
US4315248A (en) 1980-02-21 1982-02-09 Energy Optics, Inc. Load control system for standard electric utility meter
US4389702A (en) 1980-08-20 1983-06-21 International Rectifier Corporation Switching power supply circuit having constant output for a wide range of input voltage
US4437059A (en) 1980-10-21 1984-03-13 Rochester Instrument Systems, Inc. Wattmeter
GB2095879A (en) 1981-02-20 1982-10-06 Group Nh Ltd Cost display device
US4439764A (en) * 1981-04-09 1984-03-27 Westinghouse Electric Corp. Dual mode meter reading apparatus
US4422039A (en) 1981-04-24 1983-12-20 Brown Boveri Electric Inc. Self-powered ammeter
US4757456A (en) 1981-05-19 1988-07-12 Ralph Benghiat Device and method for utility meter reading
US4407061A (en) 1981-06-04 1983-10-04 Bell Telephone Laboratories, Incorporated Fabrication procedure using arsenate glasses
US4467434A (en) 1981-09-18 1984-08-21 Mcgraw-Edison Co. Solid state watt-hour meter
US4438485A (en) 1981-12-21 1984-03-20 Voigt William C Efficiency switching-mode power supply
US4516213A (en) 1982-02-01 1985-05-07 E. Grant Deans Multiple rate metering system
US4794369A (en) 1982-02-25 1988-12-27 Scientific Columbus, Inc. Multi-function electricity metering transducer
US4489384A (en) 1982-03-01 1984-12-18 Mcgraw-Edison Company Electro-optical sensor for watt-hour meter
DE3366514D1 (en) * 1982-03-05 1986-11-06 Southern California Edison Co Meter testing device and method
US4392142A (en) * 1982-03-15 1983-07-05 Xerox Corporation Ink jet droplet sensing method and apparatus
US4509128A (en) * 1982-04-16 1985-04-02 Sangamo Weston, Inc. Solid-state electrical-power demand register and method
US4542469A (en) 1982-08-12 1985-09-17 Duncan Electric Company, Inc. Programmable demand register with two way communication through an optical port and external reading devices associated therewith
CA1199062A (en) 1982-09-06 1986-01-07 Gerben S. Hoeksma Dc-to-ac voltage converter having galvanically separated input and output(s)
JPS59123002A (en) 1982-12-29 1984-07-16 Fanuc Ltd File protecting system for numerical controller
JPS59139858A (en) 1983-01-26 1984-08-10 Canon Inc Power source
US4581705A (en) 1983-01-28 1986-04-08 Cooper Industries, Inc. Method and machine for metering electric parameters
US4600881A (en) * 1983-04-06 1986-07-15 Pennsylvania Power And Light Company Watthour test circuitry
US4497017A (en) 1983-05-16 1985-01-29 National Semiconductor Corporation Switching regulator off-line starting circuit
JPS60104267A (en) 1983-11-11 1985-06-08 Toshiba Corp Electric energy measuring device
US4622627A (en) 1984-02-16 1986-11-11 Theta-J Corporation Switching electrical power supply utilizing miniature inductors integrally in a PCB
US4621330A (en) 1984-02-28 1986-11-04 Westinghouse Electric Corp. Programming system for programmable time registering electric energy meters
US4642634A (en) 1984-09-18 1987-02-10 Ncr Corporation Optical encoder
US4623960A (en) 1984-10-15 1986-11-18 At&T Bell Laboratories Bias power source energized by tertiary winding including hysteresis characteristic for disabling the power switch when a minimum base drive signal can no longer be maintained
GB8426822D0 (en) 1984-10-23 1984-11-28 Day S Static electricity meter
US4701858A (en) * 1984-12-31 1987-10-20 Energy Optics Inc. Nonvolatile realtime clock calendar module
EP0215928A1 (en) * 1985-03-25 1987-04-01 BARAN, Marion Power meter with display of power consumed and cost of power consumed
US4700280A (en) 1985-04-19 1987-10-13 Hitachi, Ltd. Switching power supply using a saturable reactor to control a switching element
JPS61284670A (en) * 1985-06-11 1986-12-15 Toshiba Corp Electronic watthour meter
US4881070A (en) 1985-06-21 1989-11-14 Energy Innovations, Inc. Meter reading methods and apparatus
US4646084A (en) 1985-06-21 1987-02-24 Energy Innovations, Inc. Meter reading methods and apparatus
US4754219A (en) 1985-09-09 1988-06-28 General Electric Company Low cost self-contained transformerless solid state electronic watthour meter having thin film ferromagnetic current sensor
US4697182A (en) * 1985-09-16 1987-09-29 Sangamo Weston, Inc. Method of and system for accumulating verifiable energy demand data from remote electricity meters
US4639728A (en) * 1985-09-16 1987-01-27 Sangamo Weston, Inc. Method of and system for accumulating verifiable energy demand data from remote electricity meters
US4682169A (en) * 1985-09-16 1987-07-21 Sangamo Weston, Inc. Method of and system for accumulating verifiable energy demand data from remote electricity meters
US4697181A (en) * 1985-09-16 1987-09-29 Sangamo Weston, Inc. System for accumulating verifiable energy demand data from remote electricity meters
US4697180A (en) * 1985-09-16 1987-09-29 Sangamo Weston, Inc. System for accumulating verifiable energy demand data from remote electricity meters
US4978911A (en) 1986-02-06 1990-12-18 Oliver J. Nilsen (Australia) Limited Electrical energy analyzer
AU597331B2 (en) 1986-02-06 1990-05-31 Nilsen, Oliver J. (Australia) Limited Electricity meter
US4713608A (en) * 1986-03-06 1987-12-15 Computer Power Systems Corporation Apparatus for providing cost efficient power measurement
US4686460A (en) * 1986-04-11 1987-08-11 Sangamo Weston, Inc. Solid state electricity meter display
US4803632A (en) 1986-05-09 1989-02-07 Utility Systems Corporation Intelligent utility meter system
GB8614620D0 (en) 1986-06-16 1986-07-23 Schlumberger Electronics Uk Commodity metering systems
US4761725A (en) 1986-08-01 1988-08-02 Unisys Corporation Digitally controlled A.C. to D.C. power conditioner
US4922187A (en) * 1987-02-13 1990-05-01 Appalachian Technologies Corporation Pulse initiator circuit
JPS63138881U (en) 1987-02-27 1988-09-13
US4884021A (en) * 1987-04-24 1989-11-28 Transdata, Inc. Digital power metering
CA1290400C (en) * 1987-04-24 1991-10-08 Scott H. Hammond Digital power metering
US4831327A (en) 1987-05-01 1989-05-16 Hydro-Quebec Self-powered electrical measuring system isolated from electrical perturbances
US4814757A (en) * 1987-06-11 1989-03-21 Ametek, Inc. Electrical, scrolling digit display
US4902965A (en) 1987-06-15 1990-02-20 Bodrug John D Consumption meter for accumulating digital power consumption signals via telephone lines without disturbing the consumer
CH677037A5 (en) * 1987-08-06 1991-03-28 Landis & Gyr Betriebs Ag
CH677036A5 (en) * 1987-08-06 1991-03-28 Landis & Gyr Betriebs Ag
US4896106A (en) 1987-09-21 1990-01-23 Landis & Gyr Metering, Inc. Watthour meter for wye connected systems
US4902964A (en) 1987-09-21 1990-02-20 Landis & Gyr Metering, Inc. Program clock for an electronic demand register with automatic calibration based on sensed line frequency
US4998061A (en) 1987-09-21 1991-03-05 Landis & Gyr Metering, Inc. Watthour meter with temperature compensation for wye connected systems
US4862493A (en) 1987-12-28 1989-08-29 General Electric Company Electronic remote data recorder for electric energy metering
JPH01227658A (en) 1988-03-07 1989-09-11 Nec Corp Power supply circuit
DE3808863A1 (en) 1988-03-17 1989-09-28 Philips Patentverwaltung POWER SUPPLY ARRANGEMENT
US4884070A (en) 1988-04-04 1989-11-28 California Institute Of Technology Method and apparatus for multiplexing switch signals
US5014213A (en) 1988-04-20 1991-05-07 Domestic Automation Company, Inc. System for use with polyphase utility meters for recording time of energy use
US4977368A (en) 1988-04-26 1990-12-11 Abb Power T&D Company Electric utility meter with electronic register
US4949029A (en) 1988-07-15 1990-08-14 Schulmberger Industries, Inc. Adjustment circuit and method for solid-state electricity meter
US4908569A (en) 1988-08-09 1990-03-13 Fest Otto P Transformerless line powdered digital AC voltmeter
US5010335A (en) * 1988-11-29 1991-04-23 Schlumberger Industries, Inc. Optical port multiplexer for electric metering equipment
US5017860A (en) 1988-12-02 1991-05-21 General Electric Company Electronic meter digital phase compensation
US4866587A (en) 1988-12-22 1989-09-12 American Telephone And Telegraph Company At&T Bell Laboratories Electronic ringing signal generator
NL8900609A (en) 1989-03-14 1990-10-01 Nedap Nv STEERING SWITCH.
CH681491A5 (en) 1989-03-31 1993-03-31 Landis & Gyr Business Support
JP2716520B2 (en) * 1989-04-28 1998-02-18 三井東圧化学株式会社 1.2 Method for removing chloroprene from dichloroethane
CA2019525C (en) 1989-06-23 1995-07-11 Takuya Ishii Switching power supply device
US4951052A (en) 1989-07-10 1990-08-21 General Electric Company Correction of systematic error in an oversampled analog-to-digital converter
US4999569A (en) 1989-09-01 1991-03-12 Abb Power T&D Company Method to calibrate magneto-optic based metering system
US5049810A (en) 1989-09-22 1991-09-17 Landis & Gyr Metering, Inc. Watt-hour meter cover with battery hatch reset switch and optical communication port
US5059896A (en) 1989-09-25 1991-10-22 General Electric Company Electronic watthour meter
US5245275A (en) 1989-09-25 1993-09-14 General Electric Company Electronic watthour meter
US5181026A (en) 1990-01-12 1993-01-19 Granville Group, Inc., The Power transmission line monitoring system
JP2893787B2 (en) 1990-02-09 1999-05-24 株式会社リコー Switching regulator
US5151866A (en) * 1990-03-30 1992-09-29 The Dow Chemical Company High speed power analyzer
US5268633A (en) 1990-04-05 1993-12-07 General Electric Company Testing operation of electric energy meter optics system
KR920005724Y1 (en) 1990-05-11 1992-08-20 삼성전자 주식회사 Circuit for switching mode power supply
US5122735A (en) 1990-06-14 1992-06-16 Transdata, Inc. Digital power metering
US5287287A (en) 1990-09-14 1994-02-15 Energy Audit Corporation Power consumption rate display device
US5153837A (en) 1990-10-09 1992-10-06 Sleuth Inc. Utility consumption monitoring and control system
JPH04172971A (en) 1990-11-06 1992-06-19 Toshiba Corp Power converter
US5184064A (en) 1991-03-25 1993-02-02 Stewart & Stevenson Services, Inc. Encapsulated meter with optical programmer
US5229713A (en) 1991-04-25 1993-07-20 General Electric Company Method for determining electrical energy consumption
US5173657A (en) 1991-06-18 1992-12-22 Abb Power T&D Company, Inc. Method and apparatus for identification of electronic meter function capabilities
GB9120004D0 (en) * 1991-09-19 1991-11-06 Ampy Automation Digilog Improvements relating to the calibration of power meters
US5270958A (en) 1991-09-24 1993-12-14 General Electric Company Method and apparatus for automatic return from test mode
US5391983A (en) 1991-10-08 1995-02-21 K C Corp. Solid state electric power usage meter and method for determining power usage
US5315527A (en) 1992-01-03 1994-05-24 Beckwith Robert W Method and apparatus providing half-cycle digitization of AC signals by an analog-to-digital converter
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.
US5537029A (en) 1992-02-21 1996-07-16 Abb Power T&D Company Inc. Method and apparatus for electronic meter testing
US5457621A (en) 1992-02-21 1995-10-10 Abb Power T&D Company Inc. Switching power supply having voltage blocking clamp
US5631554A (en) * 1993-03-26 1997-05-20 Schlumberger Industries, Inc. Electronic metering device including automatic service sensing
US5469049A (en) * 1993-03-26 1995-11-21 Schlumberger Industries, Inc. System checking and troubleshooting package for an electronic metering device
US5495167A (en) * 1994-07-12 1996-02-27 General Electric Company Electrical energy meter having record of meter calibration data therein and method of recording calibration data
US5691634A (en) * 1995-09-01 1997-11-25 Schlumberger Industries, Inc. Wye service power meter

Also Published As

Publication number Publication date
US6504357B1 (en) 2003-01-07
US20040008019A1 (en) 2004-01-15
BR9207087A (en) 1995-12-05
AU1657297A (en) 1997-06-05
DE69225335T2 (en) 1998-08-27
AU675921B2 (en) 1997-02-27
CN1076526A (en) 1993-09-22
EP0803741B2 (en) 2008-07-23
EP1070967B1 (en) 2005-01-26
UA34450C2 (en) 2001-03-15
EP0627083A1 (en) 1994-12-07
US7239125B2 (en) 2007-07-03
EP0803741B1 (en) 2001-06-06
CN1053965C (en) 2000-06-28
WO1993017345A1 (en) 1993-09-02
CN1229921A (en) 1999-09-29
AU3070092A (en) 1993-09-13
EP0803741A1 (en) 1997-10-29
CN1138983C (en) 2004-02-18
US6703823B1 (en) 2004-03-09
ES2160889T5 (en) 2009-01-16
AU688711B2 (en) 1998-03-12
US20050270015A1 (en) 2005-12-08
EP1070967A1 (en) 2001-01-24
US5537029A (en) 1996-07-16
DE69231869T2 (en) 2002-03-28
US6483290B1 (en) 2002-11-19
DE69225335D1 (en) 1998-06-04
ES2160889T3 (en) 2001-11-16
ES2239565T3 (en) 2005-10-01
DE69233475T2 (en) 2006-04-13
RU2117305C1 (en) 1998-08-10
US6954061B2 (en) 2005-10-11
ES2116352T3 (en) 1998-07-16
CA2130434C (en) 2000-08-29
DE69233475D1 (en) 2005-03-03
EP0627083A4 (en) 1995-08-16
HK1033600A1 (en) 2001-09-07
US6762598B1 (en) 2004-07-13
HK1022949A1 (en) 2000-08-25
EP0627083B1 (en) 1998-04-29
MX9206458A (en) 1993-09-01
DE69231869T3 (en) 2009-02-05
DE69231869D1 (en) 2001-07-12

Similar Documents

Publication Publication Date Title
CA2130434A1 (en) Method and Apparatus for Electronic Meter Testing
TW225064B (en) Digital full range rotating phase shifter
RU94038429A (en) METHOD AND DEVICE FOR CHECKING ELECTRONIC ELECTRICITY METERS
EP0753876A3 (en) Aliasing sampler for plasma probe detection
GR3024023T3 (en) Transaction apparatus.
MY101740A (en) Electronic parking meter system.
AU5094899A (en) Method and apparatus for sensing the state of an electrophoretic display
GB9716254D0 (en) Test device
CA2334951A1 (en) Voltage measuring device
CA2194689A1 (en) Optical power meter using low-current measurement circuit
GB9609977D0 (en) Docking system for an electronic circuit tester
AU4352396A (en) Electricity measurement apparatus and method
GB2389695A (en) Real-time charging electronic watthour meter
AU2227397A (en) Apparatus for measuring a.c. current in a cable
ES2011753A6 (en) Credit card device for continous parking facilities with variable hourly rates.
CA2287014A1 (en) Method and apparatus for electronic meter testing
MX9704900A (en) Remaining battery capacity display device.
ES2020410A6 (en) Electronic method and circuit for analyzing analog signals
EP0776086A3 (en) Signal generator
GB2282447B (en) Improvements in or relating to gas meters
SG34231A1 (en) Oscillation device display data processing device matrix-type display device oscillation signal generation method and display data processing method
EP0106493A3 (en) Monitoring in-service resistance of ac conductors
ID16169A (en) MEASUREMENT OF ELECTRONIC WATT-HOUR ELECTRICAL PRE-PAYMENT TYPE
GB2307051B (en) An equipment for testing electronic circuitry
CA2211355A1 (en) Volume verification apparatus and method

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry