| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 12/18/2013 | CN103454482A Method for calculating one-phase grounding full fault currents of small current grounding system |
| 12/18/2013 | CN103454481A BOOST inductive current sampling and correcting method |
| 12/18/2013 | CN103454480A Method for measuring and calculating transformer invading lightning voltage waveforms with transformer bushing |
| 12/18/2013 | CN103454479A Signal generating device, measuring device, electric leakage detecting device and signal generating method |
| 12/18/2013 | CN103454478A Voltage transient fluctuation instrument |
| 12/18/2013 | CN103454477A Method for controlling starting currents of automobile on basis of framework with single Hall sensor |
| 12/18/2013 | CN103454476A Measuring instrument, in particular a voltage tester |
| 12/18/2013 | CN103453935A Testing device of spindle box |
| 12/18/2013 | CN102495264B Voltage dip duration detection method based on information entropy |
| 12/18/2013 | CN102236046B Method for detecting voltage monitoring function of electricity utilization management terminals in batches |
| 12/18/2013 | CN102156218B Device and method for measuring voltage of noncontact charge induced high-voltage transmission line |
| 12/18/2013 | CN102116845B Segment display method for battery capacity of electronic equipment |
| 12/18/2013 | CN102077105B Method for battery capacity estimation |
| 12/18/2013 | CN101893670B Photoelectric measurement system for high-voltage direct current power transmission converter valve |
| 12/17/2013 | US8612167 Estimating remaining battery service life in an implantable medical device |
| 12/17/2013 | US8610424 Closing of an HF cut-off member |
| 12/12/2013 | WO2013183371A1 Voltage detecting circuit |
| 12/12/2013 | WO2013182817A1 Method for starting an internal combustion engine, and associated system and calculator |
| 12/12/2013 | WO2013107592A3 Device and method for detecting accomplished contacting of a connection |
| 12/12/2013 | US20130332099 Current measurement system |
| 12/12/2013 | US20130327481 Methods and apparatus for detecting azimuthal non-uniformity in a plasma processing system |
| 12/12/2013 | DE102012209782A1 Verfahren und Vorrichtung zur allstromsensitiven Strommessung Method and apparatus for DC sensitive current measurement |
| 12/12/2013 | DE102005011227B4 Verfahren und Vorrichtung zum Ermitteln von magnetischen Kenngrößen Method and apparatus for determining magnetic characteristics |
| 12/12/2013 | CA2875982A1 Electrical sensor with configurable settings |
| 12/12/2013 | CA2848280A1 Voltage detection circuit |
| 12/11/2013 | EP2672278A1 Measuring instrument, in particular a voltage tester |
| 12/11/2013 | CN203337768U Voltage detection apparatus and blade electric vehicle |
| 12/11/2013 | CN203337761U Multifunctional line-correcting device |
| 12/11/2013 | CN203337749U Testing stand for train electromagnetic range |
| 12/11/2013 | CN203337743U Phase checking device and electroscope used with the same |
| 12/11/2013 | CN203337728U Three-phase voltage detection circuit for electric leakage auto-reclosing circuit breaker |
| 12/11/2013 | CN203337727U Residual current signal conditioning circuit |
| 12/11/2013 | CN203337726U Voltage and current transmitter |
| 12/11/2013 | CN203337725U Sampling circuit for network side phase voltage in grid connected photovoltaic inverter system |
| 12/11/2013 | CN203337724U H half-bridge IPM module bus voltage detection circuit |
| 12/11/2013 | CN203337723U CPLD-based alternating current signal detection circuit |
| 12/11/2013 | CN203337722U Voltage and current collecting device of grid overhead transmission line |
| 12/11/2013 | CN203337721U 66 kV voltage acquisition apparatus |
| 12/11/2013 | CN203337720U 110 kV live display device |
| 12/11/2013 | CN203337719U Electronic fence test circuit |
| 12/11/2013 | CN203337718U Single-point voltage acquisition device for lithium battery management system |
| 12/11/2013 | CN203337717U Voltage signal conditioning circuit for electric leakage auto-reclosing circuit breaker |
| 12/11/2013 | CN203337716U Residual current sampling circuit for auto-reclosing moulded case circuit breaker |
| 12/11/2013 | CN203337715U Hall current sensor-based cable current detection circuit |
| 12/11/2013 | CN203337714U Current data acquisition and wireless sending terminal for electricity larceny prevention |
| 12/11/2013 | CN203337713U Circuit capable of accurately detecting AC source flame ion current magnitude |
| 12/11/2013 | CN203337712U A novel voltage quality monitoring apparatus |
| 12/11/2013 | CN203337711U High voltage current measuring instrument possessing electromagnetic shielding structure |
| 12/11/2013 | CN203337710U Output channel overcurrent detection and protection circuit |
| 12/11/2013 | CN203337699U Impact current generating device |
| 12/11/2013 | CN203332152U Protection box for railroad phase-sensitive track circuit |
| 12/11/2013 | CN103444046A Voltage monitoring module and voltage monitoring system using same |
| 12/11/2013 | CN103443639A Current measurement system, optical current transformer and fixing device thereof, light signal sampler and method thereof |
| 12/11/2013 | CN103443638A Power consumption management system |
| 12/11/2013 | CN103443637A DC bus voltage control |
| 12/11/2013 | CN103441725A System for monitoring and controlling grounding currents of transformer core |
| 12/11/2013 | CN103441577A Detection device and system for grid voltage loss and current switch-off |
| 12/11/2013 | CN103441483A Lightning arrester device |
| 12/11/2013 | CN103441472A Battery protective circuit |
| 12/11/2013 | CN103439672A Circuit and method for detecting faults of alarm lamp of motormeter |
| 12/11/2013 | CN103439667A System and method for testing battery based on PXI bus technology |
| 12/11/2013 | CN103439627A Train power supply leakage current detecting system and method |
| 12/11/2013 | CN103439626A Leakage-current monitoring system in flashover process of icing insulator |
| 12/11/2013 | CN103439615A Equivalent conversion method for output voltage waveform distortion degree of photovoltaic inverter |
| 12/11/2013 | CN103439571A Full-isolation analog voltage monitoring device for mechanic-electric detection maintenance vehicle |
| 12/11/2013 | CN103439570A Chip leakage current testing system |
| 12/11/2013 | CN103439569A Wide-range measuring range self-adaption voltage quality monitoring method |
| 12/11/2013 | CN103439568A Electroscope |
| 12/11/2013 | CN103439567A Operating method of MOA resistive current online monitoring system |
| 12/11/2013 | CN103439566A Operating method of MOA resistive current tester with relatively high precision |
| 12/11/2013 | CN103439565A Calculation method for DC magnetic bias current flowing into transformer of high-voltage DC power transmission system |
| 12/11/2013 | CN103439564A Double pole direct current transmission system direct current voltage sampling fault detection method and device |
| 12/11/2013 | CN103439563A Monitor capable of monitoring single-cylinder battery voltage |
| 12/11/2013 | CN103439562A Portable stray current tester |
| 12/11/2013 | CN103439561A High-sensitivity fiber grating voltage sensor |
| 12/11/2013 | CN103439560A Method and system for testing current of mobile phone terminal wirelessly and automatically |
| 12/11/2013 | CN103439559A Method for calculating transient currents in short circuit of any position of rail traffic direct-current traction network |
| 12/11/2013 | CN103439558A Capacitance current measuring method of phase-control type arc suppression coil |
| 12/11/2013 | CN102621382B Method for detecting frequency, phase and amplitude of electric signal in electric power system |
| 12/11/2013 | CN102590568B Low-heat electric potential test probe rod for superconductive AC (alternating current) voltage standard |
| 12/11/2013 | CN102364351B Engineering machinery rotation brush performance test apparatus and method thereof |
| 12/11/2013 | CN102243279B Apparatus for monitoring fault current in power system |
| 12/11/2013 | CN102175943B Load overcurrent protector state detection device and method |
| 12/11/2013 | CN102121959B Intelligent detection circuit for electric leakage of network probe |
| 12/11/2013 | CN102025810B Mobile phone with voltmeter function |
| 12/11/2013 | CN101888730B Alternating current constant current source LED driving circuit |
| 12/10/2013 | US8604772 MEMS-based resonant tunneling devices and arrays of such devices for electric field sensing |
| 12/10/2013 | US8604734 Electric motor control apparatus |
| 12/05/2013 | WO2013180591A1 Process control loop current verification |
| 12/05/2013 | WO2013179868A1 Voltage detection circuit |
| 12/05/2013 | WO2013179479A1 Voltage detection device for substation equipment |
| 12/05/2013 | WO2013178483A1 Battery system having a separately connected determination circuit, battery, and motor vehicle having a battery system |
| 12/05/2013 | WO2013102115A3 System and method to measure neutral-to-ground voltage |
| 12/05/2013 | US20130325381 Process control loop current verification |
| 12/05/2013 | US20130325380 AC Active Load |
| 12/05/2013 | US20130325373 Detecting Faults in Wind Turbines |
| 12/05/2013 | US20130320960 Apparatus and methods for measuring a current |
| 12/05/2013 | US20130320958 Box wizard and the rock wizard |
| 12/05/2013 | DE102012209308A1 Verfahren und Anordnung zur Überwachung der Spannung an elektrischen Speichereinheiten, Batterie und Kraftfahrzeug mit einer solchen Batterie Method and apparatus for monitoring the voltage of electric storage units, battery and motor vehicle with such a battery |
| 12/05/2013 | DE102012209273A1 Batteriezellenüberwachungseinheit, Verfahren zur Fehlererkennung und -behebung in derselben, Batteriesystem und Kraftfahrzeug Battery cell monitoring unit, method for error detection and repair thereof battery system and motor vehicle |