US Patent No: 7,006,934

Number of patents in Portfolio can not be more than 2000

Revenue meter with power quality features

ALSO PUBLISHED AS: 20050027464
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Abstract

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Power quality detection, monitoring, reporting, recording and communication in a revenue accuracy electrical power meter is disclosed. Transient events are detected by monitoring the wave shape of the electrical power and comparing deviations to a known threshold. Sags and Swells are detected by computing root mean square value over a rolling window and comparing the computed value with a known threshold. Harmonic frequencies and symmetrical components are quantified by a known algorithm and compared with a known threshold. Incoming waveforms are stored to memory. All recorded and computed data is moved to non-volatile storage via direct memory access transfer in the event that a power quality event jeopardizes the operating power of the meter. Further, the meter provides a power supply utilizing high and low capacitive storage banks to supply sufficient energy to survive short duration power quality events which jeopardize the meter's operating power.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
POWER MEASUREMENT LTD.SAANICHTON BRITISH COLUMBIA93

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Antoniou, Constantine A Vancouver, CA 7 149
Gunn, Colin N Victoria, CA 34 400
Jonker, Rene T Victoria, CA 23 347
Przydatek, Piotr B Victoria, CA 20 412
Teachman, Michael E Victoria, CA 37 954

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (6)
4,715,000 Digital phase-locked loop and frequency measuring device 63 1985
5,017,860 Electronic meter digital phase compensation 77 1990
5,229,713 Method for determining electrical energy consumption 52 1991
5,258,704 Electronic watthour meter 27 1991
5,245,275 Electronic watthour meter 56 1992
6,316,932 A-base utility meter cover 13 1999
 
ELSTER ELECTRICITY, LLC (4)
5,537,029 Method and apparatus for electronic meter testing 51 1992
5,548,527 Programmable electrical energy meter utilizing a non-volatile memory 116 1995
5,555,508 Programmable electrical energy meter and methods therefor 97 1995
5,631,843 Programmable electrical energy meter and methods therefor 40 1996
 
POWER MEASUREMENT LTD. (3)
5,650,936 Power monitor apparatus and method with object oriented structure 110 1994
5,736,847 Power meter for determining parameters of muliphase power lines 105 1994
5,828,576 Power monitor apparatus and method with object oriented structure 60 1997
 
SQUARE D COMPANY (3)
5,224,054 Waveform capturing arrangement in distributed power network 58 1990
5,247,454 Reconfigurable circuit monitoring system 60 1990
5,233,538 Waveform capturing arrangement in a distributed power network 56 1990
 
ABB POWER T&D COMPANY, INC., A DE CORP. (2)
4,365,302 High accuracy AC electric energy metering system 31 1981
4,663,587 Electronic circuit for measuring electrical energy 29 1985
 
EKSTROM INDUSTRIES, INC. (2)
5,207,595 Watthour meter socket adapter with lockable terminal cover and sealing ring 30 1992
5,571,031 Watthour meter mounting apparatus with improved electrical connections 34 1995
 
KC CORPORATION (2)
5,391,983 Solid state electric power usage meter and method for determining power usage 55 1991
5,548,209 Solid state electric power usage meter and method for determining power usage 38 1994
 
Leeds & Northrup Company (2)
4,240,149 Measuring system 38 1979
RE31774 Measuring system 19 1983
 
NATIONAL INSTRUMENTS CORPORATION (2)
4,901,221 Graphical system for modelling a process and associated method 296 1986
4,914,568 Graphical system for modelling a process and associated method 223 1986
 
SC ACQUISITION CORP., NO. 1, A NEVADA CORP. (2)
4,388,611 Electricity billing meter having unique A/D conversion system 31 1981
4,794,369 Multi-function electricity metering transducer 59 1984
 
TRANSDATA, INC. (2)
4,884,021 Digital power metering 156 1988
5,122,735 Digital power metering 74 1990
 
A-DEC, INC. (1)
4,568,934 Computer controlled energy monitoring system 84 1982
 
ABB AB (1)
4,878,142 High resistance ground fault protection 45 1988
 
ANALOGIC CORPORATION (1)
5,243,537 Method and apparatus for rapid measurement of AC waveform parameters 24 1990
 
Basic Measuring Instruments (1)
5,212,441 Harmonic-adjusted power factor meter 50 1992
 
BBC BROWN BOVERI AG, CH-5401 BADEN (1)
4,878,185 Digital measuring instrument 22 1987
 
CTE Valeron Corporation (1)
4,839,819 Intelligent power monitor 46 1986
 
GAS TECHNOLOGY INSTITUTE (1)
5,224,011 Multifunction protective relay system 70 1991
 
GE FANUC AUTOMATION NORTH AMERICA, INC. (1)
4,979,122 Apparatus and method for monitoring power 74 1989
 
GREEN WIRELESS LLC (1)
5,481,700 Apparatus for design of a multilevel secure database management system based on a multilevel logic programming system 113 1991
 
HUNT TECHNOLOGIES, INC. (1)
6,177,884 Integrated power line metering and communication method and apparatus 70 1998
 
INTERGRAPH SOFTWARE TECHNOLOGIES COMPANY (1)
5,426,780 System for dynamic segmentation analysis using conversion of relational data into object-oriented data 103 1992
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,414,812 System for using object-oriented hierarchical representation to implement a configuration database for a layered computer network communications subsystem 227 1994
 
IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. (1)
4,455,612 Recursive estimation in digital distance relaying system 76 1982
 
ISKRA STEVCI - INDUSTRIJA MERILNE IN UPRAVLJALNE TEHNIKE KRANJ (1)
4,843,311 Wattmeter comprising a hall sensor and an A/D converter 16 1987
 
ITRON, INC. (1)
5,364,290 Electric utility revenue meter polycarbonate base 21 1993
 
LANDIS & GYR BETRIEBS AG (1)
5,262,715 Arrangement for the measurement of reactive power or reactive energy 19 1992
 
LANDIS & GYR UTILITIES SERVICE, INC. (1)
6,043,642 Watt-hour meter with communication on diagnostic error detection 20 1997
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
4,672,555 Digital ac monitor 144 1984
 
MCGRAW-EDISON COMPANY (1)
4,642,564 Measuring circuit and method for power distribution equipment 23 1984
 
Ohkura Electric Co., Ltd. (1)
5,081,413 Method and apparatus for measuring AC power 19 1990
 
POLYMETERS RESPONSE INTERNATIONAL LIMITED (1)
4,345,311 Electronic kilowatt-hour meter for measuring electrical energy consumption 40 1980
 
Process Systems, Inc. (1)
5,627,759 Electrical energy meters having real-time power quality measurement and reporting capability 120 1995
 
PRODIGIT ELECTRONICS CO., LTD. (1)
5,132,610 Digitizing power meter 31 1990
 
Quadlogic Controls Corporation (1)
4,783,748 Method and apparatus for remote measurement 129 1987
 
ROCKWELL INTERNATIONAL CORPORATION (1)
4,459,546 Electronic kilowatthour meter 29 1980
 
SIEMENS INDUSTRY, INC. (1)
5,498,956 Distributed current and voltage sampling function for an electric power monitoring unit 91 1994
 
SIEMENS POWER TRANSMISSION & DISTRIBUTION, INC. (1)
4,612,617 Method and apparatus for monitoring instantaneous electrical parameters of a power distribution system 59 1983
 
Silicon Systems, Inc. (1)
5,059,896 Electronic watthour meter 69 1989
 
TEXTRON IPMP L.P. (1)
5,549,089 Engine maximum speed limiter 27 1995
 
The Dow Chemical Company (1)
5,151,866 High speed power analyzer 84 1991
 
The Penn State Research Foundation (1)
5,270,640 Method for incipient failure detection in electric machines 47 1992
 
Tokyo Shibaura Denki Kabushiki Kaisha (1)
4,463,311 Electronic electric-energy meter 29 1981
 
VECTORMETRICS, INC. (1)
5,061,890 Method and apparatus for digitally measuring electrical energy consumption 33 1990
 
VULCAN VENTURES INC. (1)
5,243,536 Method and apparatus for measuring volt-amps reactive power using synthesized voltage phase shift 36 1992
 
YOKOGAWA ELECTRIC CORPORATION (1)
5,301,121 Measuring electrical parameters of power line operation, using a digital computer 65 1991
 
Zellweger Uster Ltd. (1)
4,837,504 Electricity meter and method of calibrating same 40 1986
 
Other [Check patent profile for assignment information] (1)
5,155,836 Block diagram system and method for controlling electronic instruments with simulated graphic display 174 1989

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Electro Industries/Gauge Tech (14)
7,747,733 Power meter having multiple ethernet ports 0 2005
7,609,719 System and method for simultaneous communication on modbus and DNP 3.0 over Ethernet for electronic power meter 2 2005
8,515,348 Bluetooth-enable intelligent electronic device 0 2006
8,442,660 Intelligent electronic device having audible and visual interface 1 2006
7,554,320 Intelligent electronic device for providing broadband internet access 5 2006
8,666,688 High speed digital transient waveform detection system and method for use in an intelligent electronic device 0 2008
8,190,381 Intelligent electronic device with enhanced power quality monitoring and communications capabilities 7 2008
8,160,824 Intelligent electronic device with enhanced power quality monitoring and communication capabilities 5 2008
8,022,690 Intelligent electronic device for providing broadband internet access 2 2009
8,189,617 System and method for simultaneous communication on Modbus and DNP 3.0 over Ethernet for electronic power meter 0 2009
8,107,491 System and method for providing communication between intelligent electronic devices via an open channel 1 2009
8,176,174 Power meter having multiple ethernet ports 11 2010
8,797,202 Intelligent electronic device having circuitry for highly accurate voltage sensing 0 2011
8,700,347 Intelligent electronic device with enhanced power quality monitoring and communications capability 1 2012
 
VERIS INDUSTRIES, LLC (7)
7,157,899 Prioritized interrupt for waveform measurement 9 2004
8,692,540 Split core status indicator 0 2008
7,902,992 Status indicator 2 2008
7,855,655 Current switch with automatic calibration 3 2008
8,212,548 Branch meter with configurable sensor strip arrangement 2 2009
8,421,443 Branch current monitor with calibration 2 2009
8,421,639 Branch current monitor with an alarm 2 2009
 
ELSTER ELECTRICITY, LLC (2)
8,739,148 Automated meter reading system 0 2007
7,860,672 Method and apparatus for monitoring voltage in a meter network 3 2008
 
Electric Industries/Gauge Tech (1)
8,862,435 Intelligent electronic device with enhanced power quality monitoring and communication capabilities 0 2012
 
Electron Industries / Gauge Tech (1)
7,616,656 System and method for providing communication between intelligent electronic devices via an open channel 10 2004
 
FUJI XEROX CO., LTD. (1)
7,760,401 Voltage recorder, image processing apparatus, and voltage recording method 0 2007
 
ROCKWELL AUTOMATION TECHNOLOGIES, INC. (1)
7,751,993 Technique for high-impedance ground fault detection at the common DC bus of multi-axis drives 2 2007

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