Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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08/11/2010 | CN201550135U Radio embedded type gateway for building energy consumption measurement and environmental monitoring |
08/11/2010 | CN201549932U Electric parameter monitoring system based on GPRS network |
08/11/2010 | CN201548615U Distribution line network theoretical line loss real-time statistical analysis system |
08/11/2010 | CN201548614U Electric motor train unit energy measuring device based on network transmission |
08/11/2010 | CN201548612U High-precision broad-band detecting device of peak value |
08/11/2010 | CN201548601U High-voltage metering box |
08/11/2010 | CN101803466A System and method for graphically displaying energy consumption and savings |
08/11/2010 | CN101799493A Method and device for detecting system power |
08/05/2010 | US20100198752 Method, apparatus and system for user-assisted resource usage determination |
08/05/2010 | US20100198535 Power distribution unit monitoring network and components |
08/04/2010 | CN201541148U Electric load remote monitoring system |
08/04/2010 | CN201541114U Centralized electric energy management system |
07/30/2010 | CA2691271A1 Electronic transformer measuring device having surface mounting assembly |
07/30/2010 | CA2691270A1 Method and apparatus for measuring current output of low-voltage pad-mount distribution power transformers |
07/29/2010 | WO2010084251A1 Device for metering energy consumption and an electronic component and uses of the same |
07/29/2010 | US20100191489 Distributed Generation Power System |
07/29/2010 | US20100191488 Computer Application for the Gathering and Interpretation of Data from Interval "Smart" Meters |
07/29/2010 | US20100191487 Energy usage monitoring with remote display and automatic detection of appliance including graphical user interface |
07/28/2010 | CN101788622A Debugging test method for automatic power-generating control system |
07/28/2010 | CN101788604A Electric power and electric quantity measuring method based on frequency domain analysis and sequence component analysis |
07/27/2010 | CA2504043C Modular watthour meter socket and test switch |
07/22/2010 | WO2010082808A2 System for the remote control and management of electric power |
07/22/2010 | WO2010081280A1 Three-phase electric energy measurement apparatus |
07/22/2010 | CA2736574A1 Three-phase electric energy measurement apparatus |
07/21/2010 | EP2209013A1 Electronic multi-phase meter |
07/21/2010 | CN201532423U Integrated full auto tester of transformer loss parameter |
07/20/2010 | US7761248 Method and apparatus for legacy comparison |
07/20/2010 | US7761190 System and method for utility and wind turbine control |
07/20/2010 | US7760109 Interactive surveillance network and method |
07/15/2010 | US20100179777 Test pulses for enabling revenue testable panel meters |
07/15/2010 | US20100179776 Utility monitoring system with variable logging |
07/15/2010 | US20100179773 Method and system for monitoring a wind energy installation |
07/14/2010 | EP2207043A1 Electronic electricity meter and method for recording an electric amount of energy with an electronic electricity meter |
07/14/2010 | EP2207042A1 Rotary current meter |
07/14/2010 | CN201528092U Electric quantity-metering socket |
07/14/2010 | CN201527434U Special sliding rail of electric energy metering vehicle |
07/13/2010 | US7756696 Simulation system of technical plant |
07/13/2010 | US7756652 Estimating a power utilization of a computer system |
07/12/2010 | CA2689776A1 System for accurately detecting elctricity theft |
07/08/2010 | US20100174419 Consumer Electronic Usage Monitoring and Management |
07/08/2010 | US20100170640 Determining high frequency operating parameters in a plasma system |
07/07/2010 | EP1668450B1 Wide-area electrical demand and supply management |
07/07/2010 | CN201522524U Portable electric quantity analyzer |
07/07/2010 | CN101769956A Intelligent monitor system |
07/01/2010 | US20100169032 Wireless sensor network systems, method for placing a plurality of sensor nodes in wireless sensor network system, and methods for computing sensing energy consumption per area of a plurality of sensor nodes |
07/01/2010 | US20100169031 Apparatus, system, and method for precise early detection of ac power loss |
06/30/2010 | EP2201391A2 Method and device for measuring and monitoring |
06/30/2010 | EP2201390A2 Method and apparatus for monitoring power transmission |
06/30/2010 | EP2201389A2 Electrical power metering device and method of operation thereof |
06/30/2010 | CN201518049U Distribution transformer monitoring metering terminal |
06/30/2010 | CN201518047U Carrier electric meter capable of storing and identifying load |
06/30/2010 | CN1983361B Apparatus for driving plasma display panel with APL pre-measurement and corresponding method |
06/30/2010 | CN101764650A Method for detecting loss of transmission paths |
06/30/2010 | CN101762744A Wide-frequency electric power measurement method and measurement device |
06/30/2010 | CN101762743A Three phase electrical measurement method based on positive-sequence component computation |
06/30/2010 | CN101308172B Current integration type power detection device and power checking module |
06/29/2010 | CA2518687C Method and apparatus for detecting and correcting wiring errors in power monitoring applications |
06/24/2010 | US20100161256 Circuit and Method of Output Power Detection for a Converter Circuit |
06/23/2010 | EP2198496A2 Virtual branch load management |
06/23/2010 | CN201514444U High-voltage electric power monitoring device |
06/23/2010 | CN201514434U Liquid crystal three-phase comprehensive universal meter |
06/23/2010 | CN101755217A Energy consumption measurement |
06/23/2010 | CN101750562A Non-PMU measure point dynamic process estimation method based on flow equation sensitiveness analysis |
06/23/2010 | CN101750561A Electrical energy quality monitoring and evaluating system |
06/23/2010 | CN101750537A Field intensity type measuring device and method for power factor of high-voltage lines |
06/23/2010 | CN101750536A Intelligent meter measuring system for dynamic simulation test |
06/23/2010 | CN101750174A Pneumatic experimental table for loading electrical actuator |
06/22/2010 | US7742884 Sampling frequency control method and protective relay |
06/17/2010 | WO2010068582A1 Power metering and merging unit capabilities in a single ied |
06/17/2010 | WO2010067299A2 Electricity meters |
06/17/2010 | US20100153036 Power metering and merging unit capabilities in a single ied |
06/17/2010 | US20100153035 Progressive Humidity Filter For Load Data Forecasting |
06/16/2010 | EP2195666A1 A method for predicting arc flash energy and ppe category within a real-time monitoring system |
06/16/2010 | CN201509087U Reactive compensation intelligent observing and controlling terminal of high-voltage line |
06/16/2010 | CN201508960U Socket by using luminescent dipolar body to display electricity consumption state |
06/16/2010 | CN201508592U High-voltage prepayment electric energy quality measuring remote monitoring device |
06/16/2010 | CN201508387U Electric-energy monitoring device for computer room of internet data center |
06/16/2010 | CN201508386U Distribution transformer remote-control monitoring device |
06/16/2010 | CN201508246U Performance test circuit of household appliance product |
06/16/2010 | CN201508207U Data acquisition terminal for thermal power plant energy-conserving scheduling system |
06/16/2010 | CN101738261A Inverter device and cooling capacity measurement method for inverter device |
06/16/2010 | CN101261291B Wattless service pricing method based on fees susceptance |
06/16/2010 | CN101221199B Equipotential high-tension electric energy measuring apparatus of authigenic power supply |
06/10/2010 | WO2009156289A3 Passive mixer power detector method and apparatus |
06/10/2010 | US20100145787 Method for reducing energy consumption |
06/10/2010 | US20100145642 System and Method for Compensating for Potential and Current Transformers in Energy Meters |
06/10/2010 | US20100145629 Systems and methods for assessing and optimizing energy use and environmental impact |
06/09/2010 | CN201504102U Distribution load monitor |
06/09/2010 | CN201503447U Modularly assembled electric power metering device |
06/09/2010 | CN201503446U Electric energy meter capable of being modularly assembled |
06/09/2010 | CN101726663A Method and system for monitoring user-side harmonic pollution |
06/09/2010 | CN101726661A Device for detecting micro-electro mechanical microwave frequency response compensate-type microwave power |
06/09/2010 | CN101726660A Identification method of transformer internal faults based on leakage magnetic field model |
06/09/2010 | CN101726659A Microwave high power testboard |
06/09/2010 | CN101726658A Single-channel time-sharing multiplexing sampling method and sampling circuit thereof |
06/09/2010 | CN101724866A Device for positioning and measuring carbon blocks |
06/08/2010 | US7734441 Method and device for measuring and controlling the amount of flow/volume of liquid pumped/transferred by an electro-pump |
06/08/2010 | US7734380 Push communications architecture for intelligent electronic devices |
06/03/2010 | WO2010027441A3 Power and energy meter for measuring electromagnetic radiation |
06/03/2010 | WO2009033246A3 Method and device for measuring and monitoring |