Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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06/03/2010 | US20100138174 Establishing A Power Profile For Generating Electrical Ratings |
06/03/2010 | US20100138173 Tool to analyze performance of power-beam photovoltaic receiver |
06/03/2010 | US20100135099 Power-on detector, operating method of power-on detector and memory device including the same |
06/02/2010 | CN201497978U high-precision four-quadrant multiplier |
06/02/2010 | CN201497778U Three-phase electric energy metering SOPC chip |
06/02/2010 | CN201497777U Power utility monitoring system |
06/02/2010 | CN201497776U Device for realizing power measurement based on resistance sampling by adopting linear photoelectric coupler |
06/02/2010 | CN201497775U Microwave power-detecting device |
06/02/2010 | CN201497765U Device capable of display total power consumption in real time on display terminal |
06/02/2010 | CN101720439A Method and practical use system for measuring the imbalance power in electrical installations, and the device for calibration thereof |
06/02/2010 | CN101719674A Method for testing and computing loss of chain type modularizied static synchronous compensator |
06/02/2010 | CN101718820A Power distribution transformer monitoring terminal and method for calculating current complex power precision thereof |
06/02/2010 | CN101718809A System and method for acquiring power quality data |
06/02/2010 | CN101718808A Intelligent virtual instrument and application method |
05/27/2010 | WO2010058649A1 Solar battery evaluation device and method for evaluating solar battery |
05/27/2010 | WO2010019476A3 Improvements in virtual metering |
05/27/2010 | US20100131243 Apparatus for Measuring Distortion Power Quality Index and Method of Operating the Apparatus |
05/27/2010 | US20100131216 Power curve of wind power plant for energy network |
05/27/2010 | DE102008057607A1 Thermoelektrische Leistungsmesszelle und entsprechendes Messverfahren Thermoelectric power cell and corresponding measuring method |
05/26/2010 | CN201489050U Automatic distributor for power voltage-resistant earthing test instruments |
05/26/2010 | CN101714234A Grid line loss monitoring and analyzing system |
05/20/2010 | WO2010054991A1 Energy consumption monitor for a domestic appliance |
05/20/2010 | WO2010054811A1 Thermoelectric power measurement cell and corresponding measurement method |
05/20/2010 | WO2009126254A4 Transmitter power monitor |
05/19/2010 | CN201477145U Monitoring system for power quality |
05/19/2010 | CN101710158A Substation automation system (SAS) with insulation on-line monitoring function for high voltage electric power equipment |
05/19/2010 | CN101710153A Embedded electric energy meter with harmonic measurement function and measurement method thereof |
05/18/2010 | US7720620 System and method for determining harmonic contributions from non-linear loads without disconnecting any load |
05/13/2010 | US20100121586 unbalance power of an electrical facility or system, along with the device for its calibration |
05/13/2010 | US20100117625 Energy usage monitor for a household appliance |
05/12/2010 | DE102009051923A1 Steuerungseinrichtung zum Berechnen einer elektrischen Leistungsaufnahme einer Industriemaschine Control means for calculating an electrical power consumption of an industrial machine |
05/12/2010 | CN201466441U Power supply device with wireless metering function |
05/12/2010 | CN201464552U Electric energy meter counter |
05/12/2010 | CN201464532U Comprehensive measuring instrument of electric appliance |
05/11/2010 | US7715951 System and method for managing consumption of power supplied by an electric utility |
05/11/2010 | US7715176 Modular power monitoring system |
05/11/2010 | CA2684246A1 Energy usage monitor for a household appliance |
05/06/2010 | WO2010048993A1 Electricity meter, remote controllable disconnector module and electrical installation comprising the electricity meter |
05/06/2010 | US20100114511 Battery monitor |
05/06/2010 | US20100114510 Methods and apparatus for monitoring battery charge depletion |
05/06/2010 | US20100114392 Real-Time Power Line Rating |
05/06/2010 | US20100109650 Apparatus for electronically measuring or distributing electrical energy |
05/06/2010 | DE102009042905A1 Servomotor-Steuergerät zum Steuern von Servomotoren für die Berechnung der aufgenommenen und der zurückgewonnenen elektrischen Energie A servomotor control apparatus for controlling servomotors for the calculation of the recorded and the recovered electric energy |
05/05/2010 | CN201449416U Electric energy monitor |
05/04/2010 | US7711538 Method and apparatus for soft-sensor characterization of batteries |
04/29/2010 | US20100106436 Power consumption calculation facility |
04/29/2010 | US20100106435 System and Method for Power System Parameter Measurement |
04/28/2010 | EP1451916B1 Method and device for guaranteeing the supply of energy in autonomous installations |
04/27/2010 | US7706990 Systems and methods for measuring utilized generation of at-premise renewable power systems |
04/22/2010 | US20100100342 Metering system and method of operation |
04/22/2010 | US20100100341 Power meter based on system on chip |
04/22/2010 | US20100100340 Multi-Path Power Meter with Amplifier |
04/22/2010 | US20100097189 Battery monitor |
04/22/2010 | DE102008052335A1 Mehrpfad-Leistungsmesser mit Verstärker Multipath power meter with amplifier |
04/21/2010 | EP2177920A1 Power meter based on system on chip |
04/21/2010 | CN201440155U Energy consumption monitor controller |
04/15/2010 | US20100094574 Method for state estimation based on the measured data of the data-acquisition system in power system |
04/15/2010 | US20100094476 Energy usage monitoring method and system |
04/14/2010 | CN201438203U Digital clamp meter for measuring current and power consumed by electrical products |
04/14/2010 | CN201438199U Power quality on-line monitoring device |
04/14/2010 | CN101359305B 电脑功率测量装置 Computer power measurement device |
04/08/2010 | WO2010040036A1 Apparatus and method for measuring active and reactive powers |
04/08/2010 | WO2010039708A1 System and method for measuring reactive power |
04/08/2010 | WO2010039449A1 High voltage signal isolation by capacitive coupling |
04/08/2010 | WO2009103998A3 A method of inference of appliance usage. data processing apparatus and/or computer software |
04/08/2010 | US20100088049 Apparatus and method for measuring active and reactive powers |
04/08/2010 | US20100085037 System and Method for Measuring Reactive Power |
04/07/2010 | EP2171484A1 Energy consumption measurement |
04/07/2010 | CN101692123A Micro-electromechanical microwave loss compensating microwave power detector |
04/07/2010 | CN101692104A Power quality and synchronized phasor monitoring device for power system |
04/06/2010 | US7693670 Cognitive electric power meter |
04/01/2010 | WO2010034334A1 Method and microelectromechanical system for capturing a measurement variable for an electric current flowing through an electrical conductor, and an arrangement |
04/01/2010 | WO2009126254A3 Transmitter power monitor |
04/01/2010 | US20100082174 Managing energy usage |
03/31/2010 | CN201434889Y Single-phase power factor transmitter |
03/31/2010 | CN201434880Y Carrier wave remote controlled meter-reading billing system |
03/31/2010 | CN101685112A Servo motor drive control device for calculating consumed electric energy and regenerated electric energy |
03/30/2010 | US7689374 Polyphase electric energy meter |
03/30/2010 | US7688061 Apparatus for electronically measuring electrical energy |
03/30/2010 | US7688060 Electronic revenue meter with automatic service sensing |
03/25/2010 | WO2010032914A1 Method for monitoring energy usage in the lighting sector using a switch sensing technique |
03/25/2010 | WO2010007369A3 Utility metering |
03/25/2010 | US20100076616 Intelligent electronic device capable of operating as a usb master device and a usb slave device |
03/25/2010 | US20100072982 Test equipment and test system using the same |
03/25/2010 | DE102008015160B4 Detektoreinrichtung und korrespondierendes Verfahren Detector means and corresponding method |
03/24/2010 | CN201430446Y Electricity utilization management terminal with function of power factor compensation |
03/24/2010 | CN201429682Y Alternating-current power supply tester |
03/24/2010 | CN201429648Y Single-phase electric meter adopting electric carrier wave technology |
03/24/2010 | CN201429647Y Triphase electronic multifunction electric meter |
03/24/2010 | CN100595594C High-power microwave water load |
03/23/2010 | US7683603 Automatic disconnect system, transfer system and method |
03/18/2010 | US20100070434 Appliance with real time energy cost displayed based on usage |
03/18/2010 | US20100070219 Efficiency monitor for inductive power transmission |
03/18/2010 | US20100070218 System and method for identifying appliances by electrical characteristics |
03/18/2010 | US20100070217 System and method for monitoring and management of utility usage |
03/18/2010 | US20100070216 Power consumption calculation apparatus, power consumption calculation method, and state transition data generation method |
03/18/2010 | US20100070215 System and method for identifying appliances by electrical characteristics |
03/18/2010 | US20100070214 System and method for identifying appliances by electrical characteristics |
03/18/2010 | US20100070213 Method for Monitoring the Electrical Energy Quality in an Electrical Energy Supply System, Power Quality Field Device and Power Quality System |
03/17/2010 | EP2163909A1 Method of detecting a sustained parallel source condition |