| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 06/22/2011 | CN102103161A Lightning stroke measuring device of electronic-type arrester |
| 06/22/2011 | CN102103160A Method and device for monitoring and alarming residual current, and detection controller |
| 06/22/2011 | CN102103159A Temperature-independent undervoltage detector and related method |
| 06/22/2011 | CN102103158A Method for judging adaptive statically stable current based on power angle |
| 06/22/2011 | CN102103157A Direct voltage isolated sampling device |
| 06/22/2011 | CN102103156A Digital current transformer and method for measuring current of AC (Alternating Current) transmission conductor |
| 06/22/2011 | CN101581752B Power transmission line parameter online measurement method based on fault wave recording |
| 06/22/2011 | CN101446613B Method for detecting coupling response of transmission cables excited by plane electromagnetic waves |
| 06/22/2011 | CN101334429B Surge electric current test circuit |
| 06/22/2011 | CN101231309B Method for judging gallium nitride radical luminescence diode non-radiative recombination center concentration |
| 06/22/2011 | CN101227183B Schmidt trigger circuit |
| 06/21/2011 | US7965136 Multiport amplifier adjustment |
| 06/16/2011 | WO2011070792A1 Distributed power supply system |
| 06/16/2011 | WO2011042134A3 Method and device for determining an input voltage on a local network station of a power network |
| 06/16/2011 | US20110144933 Vital current sensor |
| 06/16/2011 | US20110140741 Integrating receiver with precharge circuitry |
| 06/16/2011 | US20110140685 Method for diagnosing a load drop |
| 06/16/2011 | US20110139879 Electronic Component Suitable for Detecting Attacks by Delivering Energy |
| 06/16/2011 | DE102009058306A1 Electrical current detection device for use in low-voltage switching device, has evaluation unit with sockets and sensor with pins for signal transmission between sensor and evaluation unit, where sockets are designed as clamping plates |
| 06/16/2011 | DE102009057479A1 Signalization device for use in over-voltage protection device for signalization of flash current in e.g. off-shore wind energy system, has monitoring device provided for detecting interruption of conductors, which exhibit same large length |
| 06/16/2011 | DE102006017239B4 Differentieller Levelshifter mit automatischem Fehlerabgleich Differential Level Shifter with automatic error adjustment |
| 06/15/2011 | EP2333948A2 Inverter control device and motor drive system |
| 06/15/2011 | EP2333944A1 Current detecting circuit and transformer current measuring system |
| 06/15/2011 | EP1711103B1 Method for separating multichannel signals produced by ac and dc sources from one another |
| 06/15/2011 | CN201869253U Mobile phone with function of voltmeter |
| 06/15/2011 | CN201868928U Charging equalizing judgment and supplement device for energy consumption type battery pack |
| 06/15/2011 | CN201868846U Earth-leakage protection controller |
| 06/15/2011 | CN201868627U Electrode connecting device with solar battery component being laid on detecting platform |
| 06/15/2011 | CN201867633U Outdoor analog acquisition module used in low temperature environment |
| 06/15/2011 | CN201867485U Hand type tester for high-voltage electroscope |
| 06/15/2011 | CN201867483U Testing instrument for LED (light-emitting diode) stroboscopic module |
| 06/15/2011 | CN201867478U Audio-visual alarm circuit of motor |
| 06/15/2011 | CN201867456U CAN (controller area network) bus-based on-line detection system for production of capacitors |
| 06/15/2011 | CN201867450U 电压测量装置 Voltage measuring means |
| 06/15/2011 | CN201867449U Wireless digital clamp meter |
| 06/15/2011 | CN201867448U High-voltage electrified display device |
| 06/15/2011 | CN201867447U Novel high-voltage electroscope |
| 06/15/2011 | CN201867446U Electrification detection instrument for automobile sensor |
| 06/15/2011 | CN201867445U Power failure alarm protection system |
| 06/15/2011 | CN201867444U Overhead line electricity warning device of overhead line electric locomotive |
| 06/15/2011 | CN201867443U Home appliance and mains supply strong current signal detection circuit thereof |
| 06/15/2011 | CN201867442U Wide load current measurement controller |
| 06/15/2011 | CN201860854U Step voltage superstandard alarming insulating boots |
| 06/15/2011 | CN1696712B Electric current measuring arrangement, current sensor, electric tripping device and circuit breaker using such a current measuring device |
| 06/15/2011 | CN102098368A Mobile phone |
| 06/15/2011 | CN102098012A Detection and amplification device for micro current |
| 06/15/2011 | CN102097789A Over-current or short-circuit state detection circuit of insulated gate bipolar transistor (IGBT) |
| 06/15/2011 | CN102097785A Method for authenticating sympathetic inrush current in traction substation transformer |
| 06/15/2011 | CN102096433A Internal voltage generator |
| 06/15/2011 | CN102096050A Detection device of direct current-direct current power supply circuit |
| 06/15/2011 | CN102096049A Testing method of instantaneous power consumption of dynamic power supply |
| 06/15/2011 | CN102096046A Testing system for vehicle-mounted charging equipment |
| 06/15/2011 | CN102096037A Testing system and method of high-voltage processing plate of thyristor |
| 06/15/2011 | CN102095995A Method and apparatus to monitor state of health of electrical connections between battery and generator |
| 06/15/2011 | CN102095944A Precise prewarning system of direct stroke in protection range |
| 06/15/2011 | CN102095924A Detection device for power utilization and measurement of high-voltage circuit |
| 06/15/2011 | CN102095923A Multiple-channel scanning A/D (Analog/Digital) collecting method and device |
| 06/15/2011 | CN102095922A Short circuit current zero predicting method |
| 06/15/2011 | CN102095921A Surging current test circuit |
| 06/15/2011 | CN102095920A Monitoring device for electrical level amplitude of serial communication signal |
| 06/15/2011 | CN102095919A Leakage current test system for handheld type electric tools |
| 06/15/2011 | CN102095918A Measuring system and method for drive current of AC motor |
| 06/15/2011 | CN102095917A Test method for current noise of high-resistance device and medium material |
| 06/15/2011 | CN102095916A Wireless communication measuring system for current of build-in arrester |
| 06/15/2011 | CN102095915A Voltage signal detecting device using multiple synchronous reference coordinate system transformation |
| 06/15/2011 | CN102095914A Non-contact voltage transducer |
| 06/15/2011 | CN102095912A Electronic indicator |
| 06/15/2011 | CN101710134B Vehicle hub rotation speed sensor electrical parameter test device and test method |
| 06/15/2011 | CN101666825B Grid voltage stabilization on-line monitoring method based on voltage stability local indexes |
| 06/15/2011 | CN101655520B Method for extracting lightning strike signals and transient harmonic signals in power system |
| 06/15/2011 | CN101629974B Portable passive broadband electric level meter |
| 06/15/2011 | CN101542662B A method and an apparatus for predicting the future behavior of currents in current paths |
| 06/15/2011 | CN101359026B Full-time-domain voltage stability synthesis assessment method |
| 06/15/2011 | CN101303376B Method and apparatus for compensating voltage zero-cross detection |
| 06/15/2011 | CN101294988B Optical fiber type electric mutual inductor |
| 06/15/2011 | CN101251559B Non-electrode type photoelectricity integrated sensor for measuring highfield |
| 06/15/2011 | CN101241095B High-temperature high pressure array electrode sensor device |
| 06/15/2011 | CN101009430B Apparatus, method and computer program product for tracking information in an electric grid |
| 06/14/2011 | US7960964 Method and system for determining a network structure or layout of at least a part of an electricity transport network |
| 06/10/2011 | CA2724608A1 Sagnac interferometer-type fiber-optic current sensor |
| 06/09/2011 | WO2011068517A1 Circuitry for hot-swappable circuit boards |
| 06/09/2011 | WO2011067646A1 Abnormality detecting system for battery assembly |
| 06/09/2011 | WO2011067073A1 Method and device for voltage measurement |
| 06/09/2011 | WO2011045677A3 Low power brown out detector |
| 06/09/2011 | US20110135540 Apparatus and method for specimen suitability testing |
| 06/09/2011 | US20110133943 Connection confirmation system and main body device |
| 06/09/2011 | US20110133782 Method and circuit arrangement for controlling switching transistors of an integrated circuit |
| 06/09/2011 | US20110133722 Load current detection in electrical power converters |
| 06/09/2011 | DE19819470B4 Verfahren zum potentialfreien Messen von Strömen durch die Aufzeichnung des von ihnen verursachten Magnetfeldes sowie Vorrichtungen zur Durchführung des Verfahrens A method for floating measuring currents through the recording of the magnetic field caused by them and apparatus for performing the method |
| 06/09/2011 | DE102009057282A1 Current measuring system for use in voltage source inverter for measuring current of induction motor, has resistor for determining inverter module output current from determined alternating current portion and intermediate circuit current |
| 06/09/2011 | DE102009057043A1 Power electronic converter, has delta-sigma-modulator and pulse width modulator coupled with each other such that pulsing of delta-sigma-modulator, digital filter and pulse width modulator is synchronized with each other |
| 06/09/2011 | DE102009056838A1 Verfahren und Vorrichtung zur Spannungsmessung Method and apparatus for measuring voltage |
| 06/09/2011 | DE102009047608A1 Verfahren und Vorrichtung zum Kalibrieren einer Spannungsmessung an einer Treiberschaltung Method and apparatus for calibrating a voltage measurement at a driver circuit |
| 06/09/2011 | DE102006038345B4 Verfahren und Vorrichtung zum Erfassen von elektrischen oder elektronischen Schaltvorgängen an wenigstens einem in einem Stromkreis angeordneten Kontakt Method and apparatus for detecting electrical or electronic switching operations to at least one arranged in a circuit contact |
| 06/08/2011 | CN201859192U Device for realizing energizing conduction detection |
| 06/08/2011 | CN201859183U Measuring system for all parameters of lightning |
| 06/08/2011 | CN201859178U Metering device for harmonic electric energy |
| 06/08/2011 | CN201859176U Direct current micro voltage/micro current detection device |
| 06/08/2011 | CN201859175U Digital voltmeter |
| 06/08/2011 | CN201859174U On-line monitoring system for grounding current of transformer iron core |