| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 01/29/2014 | CN103545785A Power supply MOV surge protection device failure fault current cyclic wave monitoring device and method |
| 01/29/2014 | CN103545285A Semicondutor module and method for determining a current flowing through a load connection |
| 01/29/2014 | CN103543387A Lightning strike positioning and lightning current inversion method of power transmission line |
| 01/29/2014 | CN103543378A Power distribution sheet relation detecting method |
| 01/29/2014 | CN103543367A Capacitor leakage current testing circuit |
| 01/29/2014 | CN103543347A Method and system for testing low-power pulse transformer |
| 01/29/2014 | CN103543330A High-precision circuit collection device |
| 01/29/2014 | CN103543323A Current detection device for large direct current charge-discharge facility |
| 01/29/2014 | CN103543322A Leak current detection device for photovoltaic grid-connected inverter |
| 01/29/2014 | CN103543321A Polarization-depolarization current detection device for crosslinked polyethylene medium-voltage cable |
| 01/29/2014 | CN103543320A High-potential current real-time detection device |
| 01/29/2014 | CN103543319A High-precision fast measuring circuit and method for wide-range currents in power system |
| 01/29/2014 | CN103543318A Confirming method of periodic load cable conductor temperature peak value moment |
| 01/29/2014 | CN103543317A Method for measuring IEC (International Electrical Commission) standard voltage flicker |
| 01/29/2014 | CN103543316A Measurement system and method for transient voltage in transformer windings |
| 01/29/2014 | CN103543315A Impedance network analysis method of short-circuit current of 500 kV autotransformer |
| 01/29/2014 | CN103543314A Voltage waveform detector, power controller and control method |
| 01/29/2014 | CN103543313A Lightning current energy detection method and system and lightning protection equipment |
| 01/29/2014 | CN103543312A Passive Rogowski coil electronic current transformer applied to GIS |
| 01/29/2014 | CN103537826A Voltage detection system of automatic electric shock prevention device of welder |
| 01/29/2014 | CN102590598B Method for predicting zero crossing point of ultrasonic signal based on multi-threshold comparison |
| 01/29/2014 | CN102298083B Lightning-stroke special digital storage oscilloscope (DSO) and measuring method thereof |
| 01/29/2014 | CN102243258B Modulation type optical current transducer and method thereof for measuring alternating current and direct current |
| 01/29/2014 | CN102157922B Reactance relay and re-closing method |
| 01/29/2014 | CN102118066B On-line arrester monitoring device with self-energy-taking function |
| 01/29/2014 | CN101964130B Temperature measuring type electrical fire monitoring system |
| 01/29/2014 | CN101873745B Vehicle lamp lighting control device |
| 01/29/2014 | CN101750534B Method and system for sampling current of power conversion circuit |
| 01/28/2014 | US8638087 Apparatus for employing low ohmic alloy conductors and method for simplifying current drain data retrieval |
| 01/28/2014 | US8638085 Apparatus and methods for mapping a wired network |
| 01/23/2014 | WO2014014495A1 Optical sensor assembly for installation on a current carrying cable |
| 01/23/2014 | WO2014012900A1 Dc reverse polarity detection |
| 01/23/2014 | WO2014012393A1 Method and system for detecting lightning current energy and lightning protection device |
| 01/23/2014 | WO2013153459A3 Zero crossing detector (zcd) circuit |
| 01/23/2014 | US20140025325 Voltage Level-Shifting |
| 01/23/2014 | US20140021939 Current-measuring device |
| 01/23/2014 | US20140021803 Determining current |
| 01/23/2014 | US20140021798 Wireless energy transfer with repeater resonators |
| 01/23/2014 | DE112005001085B4 Zustandserfassungsvorrichtung und Schaltsteuervorrichtung einer Leistungsschaltvorrichtung, welche die Zustandserfassungsvorrichtung verwendet State detecting device and the shift control device of a power switching apparatus which uses the state detecting device |
| 01/23/2014 | DE102012212644A1 Method for evaluating endangerment condition of energy storage e.g. lithium-ion-battery in electric vehicle, involves evaluating identification number and/or error information by computer program to determine endangerment condition |
| 01/23/2014 | DE102012212535A1 Circuit for use with battery for monitoring interlock or pilot lines of electrical network of motor vehicle, comprises evaluation unit and sub-circuit integrated into signal circuit through terminals for monitoring of electrical network |
| 01/23/2014 | DE102012212533A1 Electronic circuit for use in battery management system, has electronic components, where two of electronic components are designed as digital potentiometers while remaining electronic components are designed as impedances |
| 01/22/2014 | CN203407031U Induction cooker and current sampling and current foldback circuit of induction cooker |
| 01/22/2014 | CN203405513U Power transmission line insulator detection device based on fiber electric field sensor |
| 01/22/2014 | CN203405512U Lead acid storage battery shorting current and internal resistance level testing device |
| 01/22/2014 | CN203405510U Long-life digital transformer iron core grounding current monitoring device |
| 01/22/2014 | CN203405509U A high-voltage cable instantaneous short circuit fault current detecting apparatus designed by a Rogowski Coil |
| 01/22/2014 | CN203405508U Alternating-current detector |
| 01/22/2014 | CN203405507U Integrally cast electronic voltage transformer for detecting current |
| 01/22/2014 | CN203405506U Sampling circuit of resistor divider type voltage sensor |
| 01/22/2014 | CN203405505U On-line monitoring system for grounding current of transformer iron core |
| 01/22/2014 | CN203405504U Cascaded type intelligent voltage meter |
| 01/22/2014 | CN203405503U A display panel and a conflux case |
| 01/22/2014 | CN203405502U A distributed synchronous sampling and measuring system based on a RS485 protocol |
| 01/22/2014 | CN203405501U Small current indicator light device |
| 01/22/2014 | CN203405500U Comprehensive monitoring device for overhead lines |
| 01/22/2014 | CN203405436U Detection circuit of NOx sensor chip |
| 01/22/2014 | CN103534600A Device for measuring a supply voltage in electric vehicles |
| 01/22/2014 | CN103534470A End-position-monitoring device of a gas injector |
| 01/22/2014 | CN103532095A Novel energy-saving electric load limiter |
| 01/22/2014 | CN103532083A Electric shock signal moment identification method and residual current protection action criterion |
| 01/22/2014 | CN103529295A Sampling frequency determination method for calculating harmonic amplitude on basis of filtering and sampling |
| 01/22/2014 | CN103529284A Over-current detector based on CPLD and provided with master-slave multi-computer communication function |
| 01/22/2014 | CN103529283A Counter for double remote transmission lightning arrester |
| 01/22/2014 | CN103529282A Lightning rod discharge counter with automatic memory |
| 01/22/2014 | CN103529281A Voltage detection circuit with functions of complete coverage and real-time self-diagnosis, electronic equipment and automobile |
| 01/22/2014 | CN103529280A Abnormal overvoltage on-line detection device |
| 01/22/2014 | CN103529279A Transformer voltage abnormality alarm |
| 01/22/2014 | CN103529278A Safe embedded sensor for GIS charged display |
| 01/22/2014 | CN103529277A Magnetic transducer and current transducer for measuring an electrical current |
| 01/22/2014 | CN103529276A 电流检测电路及充电电池 Current detection circuit and rechargeable batteries |
| 01/22/2014 | CN103529275A Short-circuit current analysis method and device of regional power grid |
| 01/22/2014 | CN103529274A Testing method and device of spatial threshold current semiconductor laser with multiple light-emitting units |
| 01/22/2014 | CN103529273A Energy monitoring device of energy storage device of energy-storage electric traction vehicle |
| 01/22/2014 | CN103529272A Sheath circulating current forecasting method for high-voltage cable |
| 01/22/2014 | CN103529271A Optical fiber grating current sensor based on heating sheet and detection method of optical fiber grating current sensor |
| 01/22/2014 | CN103529270A Optical fiber grating current sensor based on refrigeration sheet and detection method of optical fiber grating current sensor |
| 01/22/2014 | CN103529269A Switching regulator cycle-by-cycle current estimation |
| 01/22/2014 | CN103529267A Current transducer for measuring a current |
| 01/22/2014 | CN103528701A Online monitoring system for temperature and current carrying capacity of power cable |
| 01/22/2014 | CN103522943A Abnormity warning system for water and electricity of vehicle |
| 01/22/2014 | CN102520237B Device and method for measuring digital AC/DC (Alternating Current/Direct Current) current conversion |
| 01/22/2014 | CN102288865B Method and equipment for detecting short-circuit earth fault of transmission and distribution line |
| 01/22/2014 | CN102288810B Voltage detection circuit |
| 01/22/2014 | CN101556311B Anode leak test implementation |
| 01/21/2014 | US8635483 Dynamically tune power proxy architectures |
| 01/16/2014 | WO2014010411A1 Shunt resistance type current sensor |
| 01/16/2014 | WO2014010187A1 Current detection device |
| 01/16/2014 | WO2013045186A3 Brushless direct current motor having sfoc control |
| 01/16/2014 | US20140016384 Current sensing circuit and control circuit thereof and power converter circuit |
| 01/16/2014 | US20140015533 Current sensor |
| 01/16/2014 | US20140015516 An ac current or voltage sensor |
| 01/16/2014 | US20140015514 Power consumption management system |
| 01/16/2014 | US20140015513 Device for measuring a supply voltage in electric vehicles |
| 01/16/2014 | US20140015512 Diagnostic Device, Apparatus and Method |
| 01/16/2014 | DE102013213734A1 Strom-Sense-Transistor mit Einbettung von Sense-Transistorzellen Current sense transistor with embedding sense transistor cells |
| 01/16/2014 | DE102013107309A1 Sensorbauelement, Detektoranordnung und Verfahren zum Detektieren von Lichtbogenbildung Sensor device detector arrangement and method for detecting arcing |
| 01/16/2014 | DE102013105041A1 Verbesserter leitfähiger Flüssigkeitssensor für flüssigkeitsgekühlte Batteriepacks Improved conductive liquid sensor for liquid-cooled battery pack |
| 01/16/2014 | DE102012212123A1 Vorrichtung zur Diagnose einer Schaltungsanordnung Device for the diagnosis of a circuit arrangement |
| 01/16/2014 | DE102012212102A1 Charging condition detection system for accumulator i.e. battery, of motor vehicle, has detecting unit for detecting current flowing through accumulator, and evaluation unit for determining change of charging condition of accumulator |