| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 01/23/2013 | CN202693673U Relay current detection apparatus |
| 01/23/2013 | CN202693672U On-line monitoring recording device of single cell voltage of power battery pack |
| 01/23/2013 | CN202693671U 电压质量监测分析仪 Voltage Quality Monitoring Analyzers |
| 01/23/2013 | CN202693670U Digital readout network instrument |
| 01/23/2013 | CN202693669U Step voltage alarm device |
| 01/23/2013 | CN202693668U Low current signal detection circuit and three-phase multiple energy meter |
| 01/23/2013 | CN202693667U Output voltage automatic test device of zero-sequence current transformer (ZCT) |
| 01/23/2013 | CN202693666U Alternating voltage component acquirer for direct current system |
| 01/23/2013 | CN202693665U Substation circuit induced voltage detector |
| 01/23/2013 | CN202693664U 电量测量仪表 Power measuring instruments |
| 01/23/2013 | CN202693663U Exhaust gas recirculation (EGR) valve detection device of linear motor |
| 01/23/2013 | CN202693662U Instrument for detecting current of pole-ascending-free low-voltage overhead line |
| 01/23/2013 | CN202693661U Apparatus for detecting current of cell channel |
| 01/23/2013 | CN202693660U 跨步电压测量仪 Step voltage measuring instrument |
| 01/23/2013 | CN202693659U Zinc oxide arrester electrification tester |
| 01/23/2013 | CN202693658U 差分电流检测装置 Differential current detection device |
| 01/23/2013 | CN202693657U Mining explosion-proof type voltage and ampere meter structure |
| 01/23/2013 | CN102893167A Power strip current-correction-equation calculation method, current measurement method, power measurement method, manufacturing method, power strip, and current measurement system |
| 01/23/2013 | CN102890207A Identification method for judging whether lightning conductor or tower of power transmission line is struck by lightning |
| 01/23/2013 | CN102890205A Data acquiring analyzing instrument for variable frequency air conditioner |
| 01/23/2013 | CN102890185A Grounding leakage current detecting device for train power supply system |
| 01/23/2013 | CN102890184A Optocoupler-based zero passage detecting circuit |
| 01/23/2013 | CN102890183A Method and device for automatic voltage correction of zero crossing detection circuit |
| 01/23/2013 | CN102890182A Impact current testing method |
| 01/23/2013 | CN102890181A Power line load indicating device |
| 01/23/2013 | CN102890180A Method for acquiring single-phase earth fault current of three-phase and three-core cable |
| 01/23/2013 | CN102890179A Harmonic current test system with novel current converter |
| 01/23/2013 | CN102890178A Portable data acquisition equipment for instable daily voltage |
| 01/23/2013 | CN102890177A Signal intensity detection circuit of trans-impedance amplifier |
| 01/23/2013 | CN102890176A Early warning system of electromechanical circuit |
| 01/23/2013 | CN102890175A Magneto-resistor integrated chip for current sensor |
| 01/23/2013 | CN101986428B Power semiconductor component, power semiconductor assembly including the same and a method for operating the power semiconductor assembly |
| 01/23/2013 | CN101762795B Optical fiber magneto-optic detection system and method |
| 01/23/2013 | CN101506668B Method for sampling a current or voltage profile and for forming sampling values, in particular for use in protection and control devices for energy transmission systems |
| 01/22/2013 | US8359176 Method and apparatus for determining an operating voltage for preventing photovoltaic cell reverse breakdown during power conversion |
| 01/22/2013 | US8359174 Battery pack, electronic appliance, and method of detecting remaining amount of battery |
| 01/22/2013 | US8358120 Non-intrusive detection of live electrical lines |
| 01/22/2013 | DE202012104824U1 Vorrichtung zur Erfassung von Fehlerströmen Device for detecting fault currents |
| 01/17/2013 | WO2013010083A2 Failure detection system for photovoltaic array |
| 01/17/2013 | WO2013007834A1 Device for conducting an electric current |
| 01/17/2013 | WO2013007833A1 Device for measuring an electric current |
| 01/17/2013 | WO2012157856A3 Voltage sensing assembly and battery module having same |
| 01/17/2013 | US20130015842 Current detection apparatus |
| 01/17/2013 | US20130015839 Integrated current sensor |
| 01/17/2013 | US20130015838 Document size detecting device and multi-function peripheral |
| 01/17/2013 | US20130015837 On-chip signal waveform measurement circuit |
| 01/17/2013 | DE102012212368A1 Vorrichtung zum Führen eines elektrischen Stromes A device for guiding an electric current |
| 01/17/2013 | DE102012212367A1 Vorrichtung zum Messen eines elektrischen Stromes An apparatus for measuring an electrical current |
| 01/17/2013 | DE102012211588A1 Temperaturstabilisierung für Hochfrequenzspannung Temperature stabilization for high frequency voltage |
| 01/17/2013 | DE102011107721A1 Verfahren und Vorrichtung zur Messung elektrischer Ströme mit Hilfe eines Stromwandlers Method and apparatus for measuring electric currents with the aid of a current transformer |
| 01/17/2013 | DE102011107703A1 Integrierter Stromsensor Built-in current sensor |
| 01/17/2013 | DE102011107206A1 Verfahren zur Überprüfung einer Messanordnung zur Spannungsbestimmung und Verfahren zum Laden einer ladbaren Spannungsquelle Method for checking a measuring arrangement for voltage determination and method for charging a chargeable power source |
| 01/17/2013 | DE102011081388A1 Method for determining electrical potential of electrical conductor used in e.g. voltage switchgear, involves determining free charge carriers in the irradiated surface area using determination unit |
| 01/17/2013 | DE102011079120A1 Battery management system for battery of motor vehicle, has cell monitoring unit for monitoring multiple battery cells of battery module, where cell monitoring unit has microcontroller and conducting chip |
| 01/17/2013 | DE102011079113A1 Circuitry for measurement of cell voltages of multi-cell battery, has switchable line to switch balancing current flow between battery cells, while generating voltage pulse when balancing current flow between two cells starts or stops |
| 01/16/2013 | CN202678967U Zero-loss photovoltaic current anti-backflow monitoring device |
| 01/16/2013 | CN202678953U Surge protector capable of recording lightning stroke current strength and occurrence time |
| 01/16/2013 | CN202678933U DC earth leakage protection circuit |
| 01/16/2013 | CN202678644U Multifunctional three-phase four-pole plug |
| 01/16/2013 | CN202678642U Novel electricity testing plug |
| 01/16/2013 | CN202678093U Residual current electric leakage mutual inductor |
| 01/16/2013 | CN202678082U Electronic transformer collector with overcurrent and overvoltage prevention function |
| 01/16/2013 | CN202676902U On-line monitoring device for high-voltage potential transformer of railway electric locomotive |
| 01/16/2013 | CN202676868U Wireless monitoring and remote-switch control system |
| 01/16/2013 | CN202676847U Electronic fence tester |
| 01/16/2013 | CN202676838U Novel direct current leakage current sensor |
| 01/16/2013 | CN202676824U Portable human body electric shock special wave tripping device |
| 01/16/2013 | CN202676813U Low-voltage arc fault detection apparatus |
| 01/16/2013 | CN202676803U Low-voltage high-current magnetic field simulation display device of distribution network |
| 01/16/2013 | CN202676802U Vehicle-mounted current voltage detection apparatus |
| 01/16/2013 | CN202676801U Wiring tester used for photovoltaic array header box |
| 01/16/2013 | CN202676800U Aluminum foil pressure resistance detection apparatus and system |
| 01/16/2013 | CN202676799U On-line monitoring device for lightning arrester |
| 01/16/2013 | CN202676798U Power grid voltage detecting device of electric locomotive |
| 01/16/2013 | CN202676797U Arc extinction resonance extinction and overvoltage protection device on-line monitoring system |
| 01/16/2013 | CN202676796U 多功能试电笔 Multi-function test pencil |
| 01/16/2013 | CN202676795U Induction-type test pencil with simple, practical and high sensitivity characteristics |
| 01/16/2013 | CN202676794U Solar high-voltage charged display device |
| 01/16/2013 | CN202676793U Electric leakage test pencil |
| 01/16/2013 | CN202676792U Novel electroscope |
| 01/16/2013 | CN202676791U Test pencil for electrical maintenance |
| 01/16/2013 | CN202676790U Square wave inverter AC voltage and current detection apparatus |
| 01/16/2013 | CN202676789U Power grid combination monitoring device |
| 01/16/2013 | CN202676788U Wireless monitoring system for high-voltage switch cabinet |
| 01/16/2013 | CN202676787U Transient overvoltage sampling device based on CVT circuit |
| 01/16/2013 | CN202676786U Insulating salver with AC optical fiber type current transformer |
| 01/16/2013 | CN202676785U Measuring device for working current of electronic equipment |
| 01/16/2013 | CN202676784U Voltage acquisition circuit for car single battery |
| 01/16/2013 | CN202676783U Novel structure for magnetic balanced type Hall current sensor |
| 01/16/2013 | CN202676782U An induction cooker detecting circuit |
| 01/16/2013 | CN202676781U Frequency converter bus voltage detection circuit |
| 01/16/2013 | CN202676779U Current loop isolation, transmission and integration module and multi-channel current transmitting system thereof |
| 01/16/2013 | CN202668384U Multifunctional nipper pliers capable of detecting electricity |
| 01/16/2013 | CN102882450A Zero-crossing sensing circuit and phase commutation device employing same |
| 01/16/2013 | CN102882260A Lithium battery charging control method with temperature detection function and charger for implementing lithium battery charging control method |
| 01/16/2013 | CN102879633A Safety protective structure of zero-crossing detection circuit |
| 01/16/2013 | CN102879632A Solar wireless lightning stroke discharge counter |
| 01/16/2013 | CN102879631A Voltage detection device, system and method |
| 01/16/2013 | CN102879630A Capacitive voltage transformer failure monitoring instrument |
| 01/16/2013 | CN102879629A Caution device for electric system and electric system |