| Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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| 01/23/2008 | EP1012608B1 Electronic revenue meter with automatic service sensing |
| 01/23/2008 | CN201011520Y 三相电能表 Three-phase power meter |
| 01/23/2008 | CN101109774A Three-phase multiple loop monitoring device and implementing method thereof |
| 01/17/2008 | US20080012550 Reducing power consumption of electrical meters |
| 01/08/2008 | US7317404 Method and apparatus for collecting and displaying consumption data from a meter reading system |
| 01/03/2008 | WO2008000858A1 Leakage power estimation |
| 01/03/2008 | US20080005044 Method and apparatus for using power-line phase-cut signaling to change energy usage |
| 01/03/2008 | US20080001594 Electronic device and timer therefor with tamper event time stamp features and related methods |
| 01/02/2008 | CN201000463Y Novel ultra-low power consumption digital type power parameter measuring meter |
| 01/01/2008 | US7315804 Engineering assist method and system |
| 01/01/2008 | US7315162 Reducing power consumption of electrical meters |
| 12/27/2007 | US20070296391 Current-monitoring apparatus |
| 12/26/2007 | EP1870716A1 Device for detecting broadband microwave frequencies |
| 12/26/2007 | CN200996977Y Charge-consumption detecting circuit and air conditioner therewith |
| 12/26/2007 | CN101093535A Method for testing whether there is responsion from passive UHF label or not |
| 12/25/2007 | US7313489 System and method utilizing virtual switching for electrical panel metering |
| 12/21/2007 | WO2007146053A2 Electrical power metering system |
| 12/21/2007 | WO2007145498A1 Electricity meter |
| 12/21/2007 | WO2007143834A1 Electrical energy monitor |
| 12/21/2007 | CA2654997A1 Electrical energy monitor |
| 12/20/2007 | DE19955564B4 W-CDMA Analysevorrichtung und Verfahren zur Anzeige der Ergebnisse der W-CDMA Analyse und Speichermedium mit einem Programm zur Anzeige der Ergbnisse der W-CDMA Analyse W-CDMA analysis apparatus and method for displaying the results of the W-CDMA analysis and storage medium having a program for displaying the result list of the W-CDMA analysis |
| 12/12/2007 | EP1554705B1 Automated alarm setpoint learning in an electrical meter |
| 12/12/2007 | CN101086511A Power revision circuit in electrical energy metering and power revision method |
| 12/12/2007 | CN100354635C Apparatus and method for calculating of three-phase power factor |
| 12/06/2007 | WO2007137660A1 Measuring device comprising a counter-coupled dc amplifier |
| 12/06/2007 | WO2007137659A1 Measuring device and method for measuring the power of a high frequency signal |
| 12/06/2007 | WO2007137658A1 Measuring device and measuring method for measuring the peak envelope power and the average power |
| 12/06/2007 | US20070282547 Lighting performance power monitoring system and method with optional integrated light control |
| 12/06/2007 | US20070279042 Integration methods for energy metering systems using a Rogowski coil |
| 12/06/2007 | US20070279041 Energy Metering System |
| 11/29/2007 | DE102006046966A1 Measuring device for measuring the power of a high frequency signal comprises a dither injection unit arranged between a detector and an analogue/digital converter for injecting a dither signal |
| 11/29/2007 | DE102006038031A1 Measuring device for measuring the power of a high frequency signal comprises a dither injection unit arranged between a detector and an analogue/digital converter for injecting a dither signal |
| 11/29/2007 | DE102006024699A1 High frequency signal envelope capacity and capacity mean value measuring device, has differential amplifier with negative feedback paths which extend from outputs to inputs, and one of detector units provided in paths |
| 11/28/2007 | EP1668450A4 Wide-area electrical demand and supply management |
| 11/28/2007 | CN100351961C Multicircuit type instrument and split type current transformer for use in measurement thereof |
| 11/21/2007 | CN200979564Y A portable electric meter |
| 11/21/2007 | CN200979494Y An alternative-current dynamometer for engine loading testing |
| 11/20/2007 | US7298135 Electronic revenue meter with automatic service sensing |
| 11/15/2007 | DE202007011008U1 Leistungsmessausrüstung für einen Computer Performance measurement equipment for a computer |
| 11/08/2007 | WO2007127978A2 Lighting performance power monitoring system |
| 11/08/2007 | CA2675102A1 Lighting performance power monitoring system and method with optional integrated light control |
| 11/07/2007 | CN101067634A Method for accurate computing electric line loss |
| 11/01/2007 | US20070253719 Wide dynamic range sensor signal processing method & circuitry for analog and digital information signals |
| 10/31/2007 | CN101063695A Reactive power calculating circuit and method |
| 10/31/2007 | CN100346165C System for the remote data acquisition and control of electric energy meters |
| 10/25/2007 | WO2007120597A2 Network-enabled electrical power equipment with integrated content management system |
| 10/24/2007 | CN101060342A Radio frequency power detector |
| 10/23/2007 | US7287169 Electronic device and timer therefor with tamper event stamp features and related methods |
| 10/23/2007 | US7286906 Predictive control system and method |
| 10/18/2007 | US20070244655 Method of determining the angular position of a headlight by several magnetic field measurement means |
| 10/17/2007 | CN101055283A Three-range current recording and balance analysis method and device |
| 10/11/2007 | DE102004030161B4 Schlatungsanordnung zum wahlweisen Generieren eines analogen Stromausgangswertes oder eines analogen Spannungsausgangswertes Suppression Tung arrangement for selectively generating an analog current output value or an analog voltage output value |
| 10/03/2007 | CN101047316A System, method, and article of manufacture for determining parameter values associated with an electrical grid |
| 10/03/2007 | CN101046487A Microelectromechanical microwave powersensor with two balanced thermopiles and its prepn process |
| 10/03/2007 | CN100340861C Electronic power meter with phase and non-linearity compensation |
| 09/26/2007 | CN200953033Y Portable loop remote metering measuring check-up meter |
| 09/26/2007 | CN101042415A Method and system for measuring treater electrical source consumption state |
| 09/25/2007 | US7275002 Islanding detection and protection method |
| 09/25/2007 | US7275000 Energy information system and sub-measurement board for use therewith |
| 09/20/2007 | WO2007106162A2 Energy budget manager |
| 09/20/2007 | US20070219932 Cooperative energy farms and virtual net metering |
| 09/20/2007 | CA2647411A1 Energy budget manager |
| 09/19/2007 | EP1835365A2 Method for adjusting the internal clock of an energy measuring device |
| 09/19/2007 | EP1834366A1 Battery powered device for an power meter and the power meter |
| 09/18/2007 | US7272517 Method and system for providing performance estimations for a specified power budget |
| 09/18/2007 | US7272516 Failure rate adjustment for electric power network reliability analysis |
| 09/18/2007 | US7271735 System for the remote data acquisition and control of electric energy meters |
| 09/13/2007 | WO2007101916A1 Device and method for measuring electrical power |
| 09/12/2007 | EP1402494A4 Energy history buffer |
| 09/12/2007 | CN101034947A Mobile phone thimble-type RF calibration clamp |
| 09/05/2007 | CN101029912A Two-end heated microwave power sensor |
| 09/05/2007 | CN101029911A Method for measuring single-phase loaded power factor by AC voltmeter |
| 09/04/2007 | US7265533 Non-intrusive power monitor |
| 08/30/2007 | WO2007095758A1 Apparatus and method for detecting output power from an amplifier |
| 08/30/2007 | US20070203860 Energy budget manager |
| 08/30/2007 | US20070200552 Energy meter device and calibration method |
| 08/29/2007 | EP1309873B1 Method for evaluating a communication link, terminal and system therefor |
| 08/29/2007 | CN101027568A Dynamic line rating system with real-time tracking of conductor creep to establish the maximum allowable conductor loading as limited by clearance |
| 08/28/2007 | US7263450 Method and apparatus for reading and controlling electric power consumption |
| 08/28/2007 | US7261962 Variable fuel cell power system for generating electrical power |
| 08/23/2007 | US20070194777 Power monitoring system |
| 08/15/2007 | CN2935584Y Automatic system analog simulation test apparatus of power distribution network |
| 08/15/2007 | CN101019314A RF power sensing circuit |
| 08/09/2007 | US20070185665 Method for determining power flow in an electrical distribution system |
| 08/07/2007 | US7254497 Energy consumption analysis for use with a storage system |
| 08/07/2007 | US7254495 System and method for detecting a device requiring power |
| 08/02/2007 | US20070179724 Isolated operation detecting method, control apparatus for detecting isolated operation for distributed power supply |
| 08/02/2007 | US20070179723 Analyzing and/or displaying power consumption in redundant servers |
| 08/02/2007 | DE102006003446A1 Speiseschaltung mit Leistungserfassung Supply circuit with power detection |
| 08/01/2007 | CN2929729Y Output power measuring device for power supply device |
| 08/01/2007 | CN1329736C Device for measuring the consumption of electrical energy |
| 08/01/2007 | CN101009432A Sampling circuit and voltage sampling method for three-level power factor calibration circuit |
| 07/25/2007 | CN1328586C Electric energy quality monitoring, recording and analyzing system |
| 07/25/2007 | CN101006348A Power quality monitory |
| 07/24/2007 | US7249265 Multi-featured power meter with feature key |
| 07/24/2007 | US7249023 Navigated menuing for industrial human machine interface via speech recognition |
| 07/24/2007 | US7248977 Phasor transducer apparatus and system for protection, control, and management of electricity distribution systems |
| 07/19/2007 | US20070168141 Method for measuring the operating state of a synchronous motor using composite power angle meter |
| 07/18/2007 | EP1296147B1 System and method for estimating power consumption of electric apparatus, and abnormality alarm system utilizing the same |
| 07/18/2007 | CN2924545Y Capacitive microwave power sensor |