Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 21 - Arrangements for measuring electric power or power factor
Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609)
09/1999
09/30/1999DE19810335A1 Intelligente Anschlußeinheit zur zeitnahen und automatischen Erfassung und Übertragung von Energie- und Prozeßdaten Intelligent terminal unit for timely and automatic collection and transmission of energy and process data
09/29/1999CN1229921A Method and apparatus for electronic meter testing
09/23/1999DE19910587A1 Power calculation device for target measuring system
09/16/1999WO1999046564A1 Unit for the bidirectional detection and transmission of data via modern communication networks
09/16/1999DE19805537A1 Electricity meter with measuring value detection and processing unit
09/08/1999CN2337565Y Instant power meter
09/08/1999CN1228162A Automated communication of electricity meter data
09/02/1999WO1999044071A1 Method for metering electric energy in a static electric energy meter
08/1999
08/26/1999WO1999042846A1 Method for measuring and controlling electrical parameters in a low voltage industrial alternating current electric installation and equipment for implementing said method
08/26/1999WO1999042844A1 Power monitoring apparatus
08/25/1999CN1226969A Configurable electricity meter
08/25/1999CN1226968A Sigma-delta multiplier circuit for power measurement equipment
08/18/1999CN1226005A Anticreep piece for electric energy meter
08/17/1999US5938755 Method and apparatus for estimating power in electronic integrated circuits
08/11/1999EP0935329A1 Photovoltaic module with display indicator
08/10/1999US5936537 High frequency signal detector
08/04/1999EP0815457B1 Electricity meter
07/1999
07/28/1999CN2330995Y Watt hour meter shell
07/21/1999CN1223493A Method for obtaining display fluctuation signal of power supply network
07/14/1999EP0928423A1 Electrical power measuring device and method
07/13/1999US5924051 Device for metering electricity
07/13/1999US5924050 Arithmetic unit
07/07/1999EP0801836B1 Energy management and building automation system
07/07/1999CA2254280A1 Electrical power draw monitoring device
07/06/1999US5918380 Time-of-use and demand metering in conditions of power outage
06/1999
06/30/1999EP0925511A1 Configurable electricity meter
06/23/1999EP0923742A1 Electronic electric meter for networked meter reading
06/23/1999CN1043817C Method and apparatus for measuring voltage
06/16/1999EP0922236A1 Automated communication of electricity meter data
05/1999
05/26/1999CN1217471A Method for eliminating measuring error of secondary circuit of electric-power apparatus
05/25/1999US5907241 Current measurement methods and apparatus employing second harmonic scaling
05/20/1999WO1999025049A1 Load indicator
05/19/1999EP0916097A1 Device for monitoring power consumption
05/19/1999EP0916096A1 Sigma-delta multiplier circuit for power measurement equipment
05/11/1999US5903145 Universal electronic energy meter for use with 4-wire standard services
05/06/1999DE19746719C1 Power swing indication signal determination method e.g. for power supply network
04/1999
04/27/1999CA2148961C Linear alternating current interface for electronic meters
04/13/1999US5894422 System and methods that facilitate the introduction of market based economic models for electric power
03/1999
03/25/1999WO1999014606A1 Utility meter providing an interface between a digital network and home electronics
03/25/1999CA2784942A1 Utility meter providing an interface between a digital network and home electronics
03/23/1999US5886640 Power monitoring circuit for the central processing unit on a computer circuit board
03/16/1999US5884233 System for reporting computer energy consumption
03/11/1999WO1999012047A1 Measuring system for measuring the power and/or the power factor at at least one measuring point in an alternating voltage network
03/11/1999DE19738140A1 Meßanordnung zur Leistungs- und/oder Leistungsfaktormessung an mindestens einer Meßstelle in einem Wechselspannungsnetz Measuring arrangement for power and / or power factor measurement to at least one measuring point in an alternating-voltage network
03/10/1999EP0901019A2 Electricity meter for measuring physical variables, which are parameters or functions of the voltages and/or currents measured by the electricity meter
03/10/1999EP0900387A1 Method and apparatus for measuring of electrical power and use thereof
03/10/1999EP0900386A1 Measurement apportionment system
03/03/1999CN1209550A Power-equipment secondary-circuit metering system capable of eleminating metering error
02/1999
02/25/1999WO1999009566A1 Magnetic flux concentration device
02/25/1999WO1999009421A1 Current monitoring device
02/24/1999CN2308902Y Rare-earth damper for watt-hour meter
02/16/1999US5873029 High dynamic range millimeter wave power detector with temperature compensation
02/09/1999US5869960 Digital power consumption meter for displaying instantaneous and consumed electric power of an electrical device
02/03/1999CN2306515Y Intelligent watt-hour meter
02/03/1999CN1206835A Signal power measuring equipment
02/02/1999US5867011 Maximum power point detecting circuit
01/1999
01/27/1999EP0893002A1 Method and device for determining short-circuit power in an electric power network
01/27/1999CN1206260A Self-checking circuit in microwave equipment
01/21/1999WO1999002998A1 Device for monitoring one or more consumption meters
01/19/1999US5861740 Load loss standard for calibrating power loss measurement systems
01/13/1999CN2304127Y Contactless power-factor meter
01/13/1999CN1204773A Method and apparatus for detecting out-of-step in electric power system
01/13/1999CN1041668C Support for waveguide system
12/1998
12/30/1998EP0887650A1 Robust electrical utility meter
12/30/1998CN2302523Y Light pillar digital double-display mounting electricity meter
12/29/1998US5854995 Vector electricity meters and associated vector electricity metering methods
12/09/1998CN2300112Y Watt-hour meter for single-phase electric pump
12/09/1998CN2300110Y AC power electric energy meter
12/09/1998CN2300109Y Photoelectric switching sampling structure for electric energy meter
12/08/1998US5847794 Photovoltaic module with display indicator
12/03/1998WO1998054591A1 Automated communication of electricity meter data
12/03/1998WO1998054583A1 Commodity consumption meter
12/02/1998EP0804739B1 Electricity measurement apparatus and method
11/1998
11/26/1998WO1998053332A1 Electronic revenue meter with automatic service sensing
11/25/1998EP0879419A1 Electricity measurement apparatus
11/24/1998US5842187 Electricity monitoring system
11/19/1998WO1998052058A1 Measurement of microwave radiation
11/19/1998WO1998052057A1 Configurable electricity meter
11/19/1998WO1998052056A1 Apparatus for the measurement of microwave radiation
11/19/1998CA2288860A1 Measurement of microwave radiation
11/19/1998CA2288660A1 Apparatus for the measurement of microwave radiation
11/12/1998WO1998050797A1 Programmable monitoring device for electric consumption
11/11/1998EP0877257A2 Electronic unit for measuring electric energy
11/04/1998EP0875833A1 Module-configurable, full-chip power profiler
11/04/1998EP0739489B1 Measuring process for measuring chargeable electrical consumption from an electrical network and electronic electricity meter
11/03/1998US5831550 System and process for the measurement of the electric energy consumption of a plurality of consumers
11/03/1998US5831428 Metering unit with integrated user programmable logic
10/1998
10/28/1998CN2296014Y Multifunctional A.C. wattmeter
10/27/1998US5828576 Power monitor apparatus and method with object oriented structure
10/15/1998WO1998045718A1 Device for monitoring power consumption
10/15/1998WO1998018012A3 Electrical energy meter oscillator compensation
10/14/1998EP0871272A1 Method for determining the energy saving potential of an electrical energy consuming system and method for operating an electrical energy consuming system
10/08/1998WO1998044661A1 Power detection circuit
10/07/1998EP0869599A2 Method and apparatus for detecting out-of-step in electric power system
10/07/1998EP0643841B1 System and process for the measurement of the electric energy consumption of a plurality of consumers
09/1998
09/30/1998EP0866976A2 Electronic measurement device
09/29/1998US5815416 Method of measuring energy consumption in a circuit simulator
09/23/1998EP0671009B1 Programmable electrical energy meter and methods therefor
09/23/1998CN1193742A Intellectual electric power metering and charging management system
09/22/1998US5811966 Meter for measuring and displaying the power consumption of an electrical appliance and the time period of such power consumption
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