| Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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| 08/18/2011 | US20110202293 Diagnostics using sub-metering device |
| 08/18/2011 | US20110202194 Sub-metering hardware for measuring energy data of an energy consuming device |
| 08/17/2011 | CN102160327A An authentication system for a plug-in electric drive vehicle |
| 08/17/2011 | CN102157934A Method for uniformly controlling active power quality control devices |
| 08/17/2011 | CN102156219A Multifunctional integrated high-pressure metering device |
| 08/17/2011 | CN101710158B Substation automation system (SAS) with insulation on-line monitoring function for high voltage electric power equipment |
| 08/17/2011 | CN101446605B Low-frequency oscillation monitoring method for power system |
| 08/16/2011 | US8001545 Method and system for regulating communication traffic using a limiter thread |
| 08/16/2011 | US8001405 Self-tuning power management techniques |
| 08/16/2011 | US8000912 Instrument transformer and apparatus for detecting an amount of power using the same |
| 08/16/2011 | US7999532 Apparatus for electronically measuring or distributing electrical energy |
| 08/11/2011 | WO2011095225A1 Method for controlling a machine or an electrical load supplied with electric power over a long line |
| 08/11/2011 | US20110196629 Electric power metering device and method |
| 08/11/2011 | DE102011000593A1 Method for recording measurement of e.g. voltage per phase of electrical circuit with load current greater than sixteen amperes in data center, involves providing remote access to data by wide area network |
| 08/11/2011 | CA2789205A1 Method for controlling a machine or an electrical load supplied with electric power over a long line |
| 08/10/2011 | EP2355164A1 Solar battery evaluation device and method for evaluating solar battery |
| 08/10/2011 | CN201926707U 三相数字电表及自动抄表系统 Phase digital meter and automatic meter reading system |
| 08/10/2011 | CN201926705U 便携式抽油机电参数检测仪 Portable pumping electrical parameter tester |
| 08/10/2011 | CN201926704U 模拟风机装置 Analog fan unit |
| 08/10/2011 | CN201926703U 多通讯模式的建筑物耗电量采集与传输系统 Building Multi-communication mode power consumption collection and transmission system |
| 08/10/2011 | CN201926693U 一种基于以太网的嵌入式电网参数监测仪 Based on Ethernet network parameters monitor |
| 08/10/2011 | CN102147430A Device and method for metering electric energy |
| 08/10/2011 | CN102147429A 宽带微波功率计以及干扰信号滤除方法 Wideband microwave power meter and a method to filter out interfering signals |
| 08/10/2011 | CN101724866B Device for positioning and measuring carbon blocks |
| 08/09/2011 | US7996164 Managing energy usage by devices associated with a virtual universe resource conservation region |
| 08/08/2011 | CA2727593A1 Electric power metering device and method |
| 08/04/2011 | US20110191041 Method and Device for the Non-Intrusive Determination of the Electrical Power Consumed by an Installation, by Analysing Load Transients |
| 08/03/2011 | CN201917610U 一种电能计量装置 One kind of energy metering device |
| 08/03/2011 | CN102141476A Method and device for testing impulsive load of diesel engine |
| 08/03/2011 | CN101206233B Electric plating power meter |
| 08/02/2011 | US7991567 Centralized operating meter for energy technologies |
| 07/28/2011 | WO2011090167A1 Power distribution information measuring device |
| 07/28/2011 | US20110184676 Data reduction in a multi-node system |
| 07/28/2011 | US20110184675 Isolated current sensor with codec |
| 07/28/2011 | US20110181270 Power supply controlling apparatus, and non-transitory computer readable recording medium |
| 07/27/2011 | CN201909811U Three-phase watt-hour meter based on MSP430 singlechip |
| 07/27/2011 | CN102135563A Method and system for calculating electric energy and electric energy meter |
| 07/27/2011 | CN101514999B Electric power measurement multifunctional instrument system and method for measurement |
| 07/21/2011 | WO2011085517A1 Electronic current transformer based on complete self-excitation power supply |
| 07/21/2011 | WO2011049307A9 Method for performing an asynchronous command in a remote meter-reading system |
| 07/21/2011 | CA2770372A1 An electronic current transformer based on complete self-excitation power supply |
| 07/20/2011 | CN201903585U Wireless fidelity (WIFI) wireless intelligent electric energy meter |
| 07/20/2011 | CN201903584U Multifunction direct current electricity meter for photovoltaic system |
| 07/20/2011 | CN201903581U Electric energy sampling and metering system |
| 07/20/2011 | CN201903572U Power monitoring instrument |
| 07/20/2011 | CN201903523U Headspace analyzer capable of monitoring energy use and detecting environment |
| 07/20/2011 | CN102130505A High-voltage switch controller with metering function |
| 07/20/2011 | CN102128976A Energy pulse output method and device of electric energy meter and electric energy meter |
| 07/20/2011 | CN101661069B Dynamic process real-time estimation method of weak observable non-PMU measuring point independent of state matrix |
| 07/19/2011 | US7983860 Method and system for monitoring power consumption of a computer component |
| 07/14/2011 | WO2011029018A3 Voltage conversion and/or electrical measurements from 400 volts upwards |
| 07/14/2011 | US20110169971 Optical navigation devices and associated methods |
| 07/14/2011 | DE102010026630A1 Leistungskalibriersystem Leistungskalibriersystem |
| 07/13/2011 | EP2343635A2 Improvements in or relating to optical navigation devices |
| 07/13/2011 | CN201898514U Standing-wave and power online detection device |
| 07/13/2011 | CN102124355A True root-mean-square detection with a sub-threshold transistor bridge circuit |
| 07/13/2011 | CN102121952A Method and device for operating automation machine |
| 07/13/2011 | CN102121951A Method for measuring power of halogen lamp |
| 07/13/2011 | CN101210941B Large power converter subsequent lockout overcurrent, subsequent power loss and overcurrent test method |
| 07/12/2011 | US7979220 System and method for monitoring power damping compliance of a power generation unit |
| 07/06/2011 | EP2340440A1 Electricity meter, remote controllable disconnector module and electrical installation comprising the electricity meter |
| 07/06/2011 | CN201893606U Distribution transformer monitoring management terminal |
| 07/06/2011 | CN201892710U Monitoring system of power transformer |
| 07/06/2011 | CN102116811A Harmonic source judgment method in double bus transmission and electric energy quality monitoring system |
| 07/06/2011 | CN101339210B Method and device for correcting phase error of electric network measuring and controlling equipment |
| 07/06/2011 | CN101332971B Passing type microwave power detector based on microelectronic mechanical cantilever beam and manufacturing method |
| 06/30/2011 | WO2011079190A1 Dynamic load estimation of multiple branch circuits |
| 06/30/2011 | US20110161023 System and method for measuring machine energy consumption and productivity |
| 06/30/2011 | US20110161022 Systems, methods, and apparatus for utility meter phase identification |
| 06/30/2011 | US20110161021 Dynamic load estimation of multiple branch circuits |
| 06/30/2011 | US20110161020 Detecting Power Quality Events in Power Distribution Networks |
| 06/30/2011 | US20110160922 Decentralized system and architecture for remote real time monitoring of power transformers, reactors, circuit breakers, instrument transformers, disconnect switches and similar high voltage equipment for power plants and electric power substations |
| 06/30/2011 | CA2782141A1 Dynamic load estimation of multiple branch circuits |
| 06/29/2011 | CN201887498U Wireless power sensor |
| 06/29/2011 | CN201886077U Electrical-power loss measuring device with time-scale electrical energy and communication function |
| 06/29/2011 | CN201885935U Flex durability tester with energy utilization monitoring and environment detection capabilities |
| 06/29/2011 | CN201885841U Comprehensive analysis system for working condition of oil-pumping machine |
| 06/29/2011 | CN102110982A Method and device for monitoring power of extra-high voltage connecting line |
| 06/29/2011 | CN102109578A System for monitoring photovoltaic battery pack string |
| 06/29/2011 | CN101726661B Device for detecting micro-electro mechanical microwave frequency response compensate-type microwave power |
| 06/28/2011 | US7970563 Testing apparatus and method for signal strength of powerline networks |
| 06/28/2011 | US7970562 System, method, and apparatus for monitoring power |
| 06/28/2011 | US7970560 Method and apparatus for measuring and monitoring a power source |
| 06/28/2011 | US7969151 Pre-amplifier and mixer circuitry for a locator antenna |
| 06/23/2011 | WO2011072816A1 Method for controlling the opening or closing of an electric circuit in an electric meter |
| 06/23/2011 | WO2011031430A3 Power measurement techniques of a system-on-chip (soc) |
| 06/23/2011 | US20110154269 Home energy management screensaver |
| 06/23/2011 | US20110148422 Lamp With Metering Device |
| 06/22/2011 | DE102009054829A1 Method for operating machine tool, involves determining electrical energies consumed by machine and/or electric energy consumers per processing steps of machine and/or per flow of processing program from determined active electric power |
| 06/22/2011 | CN201877796U Electric identification current limiter |
| 06/22/2011 | CN201876494U Electric energy metering and measuring system |
| 06/22/2011 | CN102103164A Solar photovoltaic cell power generating capacity prediction system and method |
| 06/22/2011 | CN101546176B Control device and electric power estimating method |
| 06/21/2011 | US7966140 Radio frequency power meter |
| 06/21/2011 | CA2536083C Method and apparatus for measuring impedance of electrical component under high interference conditions |
| 06/16/2011 | WO2011072139A1 Magneto optical current transducer with improved outage performance |
| 06/16/2011 | WO2011070762A1 Power information collection apparatus, power measurement apparatus, power information collection system, and power information collection method |
| 06/16/2011 | WO2011042134A3 Method and device for determining an input voltage on a local network station of a power network |
| 06/16/2011 | US20110145612 Method and System to Determine and Optimize Energy Consumption of Computer Systems |
| 06/16/2011 | US20110144932 Power Monitoring and Analysis System for Identifying and Tracking Individual Electrical Devices |