Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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01/16/2014 | DE102012106382A1 Ausgangsstufe Output stage |
01/15/2014 | CN203398782U 相控式消弧线圈 Phased Petersen Coil |
01/15/2014 | CN203398761U Integrated protector of motor |
01/15/2014 | CN203398750U Overcurrent detection and control device |
01/15/2014 | CN203398351U Live part verification prompting device for hitched ground wire |
01/15/2014 | CN203397668U An LED number display module for a microcomputer protection apparatus |
01/15/2014 | CN203396937U Voltage-transformer secondary voltage detection system applied in power field |
01/15/2014 | CN203396893U Power line leakage current detection apparatus |
01/15/2014 | CN203396869U Integrated test equipment |
01/15/2014 | CN203396851U Phase indicating device convenient to operate |
01/15/2014 | CN203396836U An AC detecting circuit |
01/15/2014 | CN203396835U Monitoring and alarming system for grounding current of single-core cable |
01/15/2014 | CN203396834U Low-cost rapid high-precision AC voltage signal sampling system |
01/15/2014 | CN203396833U Four-path itinerant alternating-current ammeter |
01/15/2014 | CN203396832U Monitoring circuit and drilling equipment |
01/15/2014 | CN203396831U Current detector for lithium battery protection plate |
01/15/2014 | CN203396830U 多功能试电笔 Multi-function test pencil |
01/15/2014 | CN203396829U Indoor high voltage charged display |
01/15/2014 | CN203396828U Current sensor based on planar Rogowski coil |
01/15/2014 | CN203396827U High-voltage electroscope device |
01/15/2014 | CN203396826U Portable induced-electricity electricity-testing device |
01/15/2014 | CN203396825U Detection system applied in power field |
01/15/2014 | CN203396824U Multipath voltage and current monitoring device |
01/15/2014 | CN203396823U Middle/low-frequency lightning current shunting and monitoring device |
01/15/2014 | CN203396822U On-line monitoring device for grounding currents flowing through sheaths of high-voltage single-core cables |
01/15/2014 | CN203396821U Passive signal detection device |
01/15/2014 | CN203396820U Hall closed-loop principle-based guide rail-mounted current transducer |
01/15/2014 | CN203396809U Intelligent electricity stealing-prevention current monitoring device |
01/15/2014 | CN203396425U A testing apparatus for a main shaft case |
01/15/2014 | CN103518139A Method and apparatus for detection of LVDT core fallout condition |
01/15/2014 | CN103516425A Method used for measuring trans-impedance gain of trans-impedance amplifier |
01/15/2014 | CN103516005A Charger external power device gain sampling |
01/15/2014 | CN103515927A Electric leakage sampling circuit and method |
01/15/2014 | CN103515859A Electricity testing overhaul ladder |
01/15/2014 | CN103513164A Method for monitoring discharge energy instantaneous value and accumulation value of klystron |
01/15/2014 | CN103513154A Power distribution network electric leakage signal on-line detection device |
01/15/2014 | CN103513148A Electric leakage warning device |
01/15/2014 | CN103513137A Traction power supply information acquisition system based on synchronous measurement |
01/15/2014 | CN103513097A Hall sensor temperature compensation method for automobile and Hall sensor thereof |
01/15/2014 | CN103513096A H type filter capacitor group imbalance current detection device |
01/15/2014 | CN103513095A Data acquisition device applied to power distribution line fault indicator detection |
01/15/2014 | CN103513094A Device and method for eliminating power system detection signal noise |
01/15/2014 | CN103513093A Electronic transformer collector based on 4-order Bessel filtration and software integration |
01/15/2014 | CN103513092A Zinc oxide arrester on-line monitoring system based on wireless transmission |
01/15/2014 | CN103513091A Abnormal overcurrent on-line detection device |
01/15/2014 | CN103513090A Light guiding type high-voltage electrification indicating system |
01/15/2014 | CN103513089A Electrified display sensor |
01/15/2014 | CN103513088A Electric power system alternating current flow sampling data validity detection method |
01/15/2014 | CN103513087A Self-adaptation load matching current collecting switching circuit |
01/15/2014 | CN103513086A 电流传感器 Current Sensors |
01/09/2014 | WO2014007489A1 Driver circuit for an electric vehicle and a diagnostic method for determining when a voltage driver is shorted to a ground volatge |
01/09/2014 | WO2014006914A1 Method for manufacturing current sensor, and current sensor |
01/09/2014 | WO2014006121A1 Temperature compensated fiber-optic current sensor |
01/09/2014 | WO2014005399A1 Overvoltage protection circuit and current sampling device |
01/09/2014 | US20140009299 Indirect measurement method and system for monitoring and reporting leakage currents |
01/09/2014 | DE102012211924A1 Halbleitermodul mit einem in einer Anschlusslasche integrierten Shunt-Widerstand und Verfahren zur Ermittlung eines durch einen Lastanschluss eines Halbleitermoduls fließenden Stromes A semiconductor module with a built-in a connecting bracket shunt resistor and method for determining a current flowing through a load terminal of a semiconductor module current |
01/08/2014 | EP2682972A1 Device for detecting the open or closed state of a switch and associated transformer protection relay monitoring device |
01/08/2014 | EP2682765A1 Temperature compensated fiber-optic current sensor |
01/08/2014 | EP2682761A1 Measurment at a panel by a reae side placed appliance |
01/08/2014 | EP2681570A1 Dc bus voltage control |
01/08/2014 | EP2681569A1 Voltage detection apparatus and method of reducing dispersion of dark currents |
01/08/2014 | CN203387402U An inverter used for eliminating interference signals in a control system |
01/08/2014 | CN203387166U Over/Under-voltage detection protection circuit of series supercapacitor bank |
01/08/2014 | CN203386041U Carrier rocket ground acquisition device |
01/08/2014 | CN203385798U A multi-connection wire testing circuit |
01/08/2014 | CN203385792U Testing mechanism for lithium battery |
01/08/2014 | CN203385785U Power supply line detection circuit and power supply distribution monitoring apparatus generally used for AC-DC |
01/08/2014 | CN203385784U Contactless electroscope used for electric power maintenance operation |
01/08/2014 | CN203385783U Low-power intelligent high-voltage charged display locking device based on AVR microcontroller |
01/08/2014 | CN203385782U Non-transformer isolated voltage and current acquisition device |
01/08/2014 | CN203385781U Contact current testing device |
01/08/2014 | CN203385780U Device for suppressing misoperation on neutral point offset protection of converter transformer |
01/08/2014 | CN203385141U Air conditioner, indoor unit and alternating current overvoltage detection device of indoor unit |
01/08/2014 | CN103502828A Method and apparatus for measuring charging current |
01/08/2014 | CN103499799A Strong and weak current dual-detection method of high-voltage electroscope |
01/08/2014 | CN103499762A Online detection device for leakage current of lightning arrester of power distribution network |
01/08/2014 | CN103499736A Over-current detection circuit and over-current protection circuit |
01/08/2014 | CN103499735A Device for collecting high-potential corona current |
01/08/2014 | CN103499734A Rapid and portable tester for lead-acid battery charger |
01/08/2014 | CN103499733A Circuit and method for high-precision voltage detection |
01/08/2014 | CN103499732A Bidirectional zero-cross detection circuit and method thereof |
01/08/2014 | CN103499731A Supply voltage qualified rate comprehensive analysis method |
01/08/2014 | CN103499730A Safety electricity testing and discharging device |
01/08/2014 | CN103499729A Measurement method of voltage division ratio of voltage-sharing capacitor for spark gap of series capacitor compensation device |
01/08/2014 | CN103499728A Method and system for detecting voltage unbalance of series capacitor bank |
01/08/2014 | CN103499727A Method for determining reaction potential of additive in lithium-ion cell electrolyte |
01/08/2014 | CN102719927B Preparation method of polyvinylidene fluoride (PVDF)/carbon nanotube composite nanofibers |
01/08/2014 | CN102495322B Synchronous performance test method for digital relay protection device based on IEC61850 (International Electrotechnical Commission 61850) |
01/08/2014 | CN102057281B Method and device for current measurement in phase lines |
01/07/2014 | US8627125 Context sensitive power management for a resource |
01/07/2014 | US8626462 Phase identification system and method |
01/07/2014 | US8624610 Synthesized current sense resistor for wide current sense range |
01/07/2014 | US8624583 Measuring alternating current flowing through an electricity supply distribution unit |
01/07/2014 | US8624582 Measuring method, arrangement and software product |
01/07/2014 | US8624581 Input power measuring device |
01/07/2014 | US8624577 Identifying a cable path using light emitting diodes |
01/03/2014 | WO2013167016A3 Apparatus and method for sampling inductor current of bridgeless pfc circuit |
01/02/2014 | US20140002139 Maximum voltage selection circuit and method and sub-selection circuit |
01/02/2014 | US20140002037 Switching Regulator Cycle-by-Cycle Current Estimation |
01/02/2014 | DE112012001307T5 Leistungsumwandlungsvorrichtung Power conversion apparatus |