Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
03/2014
03/26/2014CN102497029B Parallel medium resistance line selection apparatus based on IEC 61850 standard and method thereof
03/26/2014CN102345878B Flame ion current intensity detection and pulse ignition circuit
03/26/2014CN102128968B Low voltage differential signal testing system and method thereof
03/26/2014CN102076145B Accurate detection and control method for automobile LED steering lamp
03/26/2014CN102016607B Method and apparatus for analyzing waveform signals of a power system
03/26/2014CN101946185B Compressor protection and grid fault detection device
03/26/2014CN101715560B Current measuring apparatus for use with electric motors
03/25/2014US8680890 Sense amplifier
03/25/2014US8677607 Method of manufacturing magnetoresistive element
03/25/2014CA2689777C System for automatically detecting power system configuration
03/20/2014US20140079970 Differential voltage measurement circuit
03/20/2014US20140077797 Current sensor
03/20/2014DE102012216712A1 Verfahren zur Ermittlung eines durch einen elektrischen Leiter fließenden Stromes A method for detecting a current flowing through an electrical conductor current
03/20/2014DE102012216554A1 Direct current measurement device for measurement system for measuring direct current component, has alternating current compensation winding, and primary core with alternating current to direct current compensation winding and pick-up coil
03/20/2014DE102012216553A1 Method for current measurement in primary conductor for e.g. long overhead lines for distributing electrical energy, involves adjusting compensation current based on regulating signal, and determining current based on adjusted current
03/20/2014DE102012216471A1 Safety device i.e. external, secure functioning device for checking high volt network of motor car at absence of voltage, has computer device determining predominating voltage level of network, and checking network at absence of voltage
03/20/2014DE102012109952B4 Steuerungs-Kommunikationssystem Control communication system
03/20/2014DE102011005769B4 Verfahren zum Ermitteln eines Ladezustandes einer elektrischen Energiespeichervorrichtung und elektrische Energiespeichervorrichtung A method for determining a state of charge of an electrical energy storage device, and electric energy storage device
03/19/2014EP2708904A2 Device for determining a DC current in an electric conductor
03/19/2014EP2707731A2 Method and apparatus for detection of lvdt core fallout condition
03/19/2014CN203491567U Multipurpose electricity check vehicle device
03/19/2014CN203491075U Current transformer reducing display error of on-site ammeter
03/19/2014CN203490312U Aging detection circuit of grounding wire of electric equipment
03/19/2014CN203490282U Management device for middle-high-voltage line fault
03/19/2014CN203490281U Current collecting device of ring main unit
03/19/2014CN203490280U Electric signal measuring circuit
03/19/2014CN203490279U A sampling circuit used for an LED signal mechanism
03/19/2014CN203490278U Photoconductive high-voltage live-line indicating system
03/19/2014CN203490277U Direct current signal acquisition and amplification circuit of integrated power source
03/19/2014CN203490276U Direct-current sampling circuit of integrated power source
03/19/2014CN203490275U Double-subtraction alternating current sampling circuit of integrated power supply
03/19/2014CN203490274U Voltage testing device for four-terminal capacitor
03/19/2014CN203490273U On-line monitoring system for earth current of transformer iron core
03/19/2014CN203490259U A current transformer dedicated to a metering box
03/19/2014CN103647805A Method for accessing data to IEC61850 fault recording master station from converter station fault recording system
03/19/2014CN103647445A Direct?current-direct current (DC-DC) power supply apparatus and current detection method thereof
03/19/2014CN103646968A A HEMT gate leakage current separating structure and method based on capacitor structure
03/19/2014CN103645376A Digital current voltmeter of wireless transmission signal
03/19/2014CN103645375A Power supply overrunning detection module without reference source
03/19/2014CN103645374A Non-contact electricity measurement device
03/19/2014CN103645373A Method for monitoring dark current
03/19/2014CN103645372A Method for quickly estimating open circuit voltage of secondary battery
03/19/2014CN103645371A Device and method for measuring half-wave voltage of electro-optic phase modulator
03/19/2014CN103645370A Power grid detection method
03/19/2014CN103645369A Current sensing apparatus
03/19/2014CN103645368A Transformation method of lightning arrester on-line monitoring type capacitive voltage transformer
03/19/2014CN103645367A Transformation method of lightning arrester outer leading type capacitive voltage transformer
03/19/2014CN103639952A Wrench with test pencil
03/19/2014CN102706951B Method for determining surface potential of liquid-liquid two-phase interface
03/19/2014CN102662097B Broadband online measurement sensor for DC extra-high voltage corona current
03/19/2014CN102269777B Synchronous signal detection apparatus and detection method thereof having frequency response adaptability
03/19/2014CN102027382B Techniques for measuring voltages in a circuit
03/19/2014CN101924342B Abnormal current detecting circuit for circuit breaker
03/19/2014CN101710686B Electronic trip unit of a circuit breaker
03/18/2014US8676540 Methods for automatic trigger threshold adjustment
03/18/2014US8676396 Mesh delivery system
03/18/2014US8675005 Waveform observing apparatus and system thereof
03/18/2014US8674679 Power saving during a connection detection
03/17/2014DE202014001326U1 Offenbarung eines Mittels zur Betriebszustandserkennung Disclosure of an agent for status recognition
03/13/2014WO2014038119A1 Power supply monitoring device, electronic apparatus, and power supply monitoring method
03/13/2014WO2014037465A1 Method and device for checking the plausibility of a current sensor measurement result
03/13/2014WO2014037032A1 Measuring device, use of the measuring device, and method for measuring an alternating voltage
03/13/2014US20140070881 Quiescent current determination using in-package voltage measurements
03/13/2014US20140070801 Current sensor
03/13/2014US20140070792 Handheld fiber optic current and voltage monitor for high voltage applications
03/13/2014US20140070791 Electronic device and method of electronic device for determining power source device
03/13/2014DE102012215963A1 Method for monitoring service life of intermediate circuit capacitor of electrical system e.g. photovoltaic system, involves outputting alarm signal, if actual values for previously consumed service life exceed threshold limit
03/13/2014DE102012018126A1 Device for monitoring secondary lithium-ion-cell in lithium-ion-battery, has reference electrode and negative electrode connected with measuring unit for determining electrical voltage between reference and negative electrodes
03/13/2014DE10135924B4 Amplitudendetektierverfahren und Schaltung Amplitudendetektierverfahren and circuit
03/12/2014CN203482441U LED driving power module with lightning protection counting function
03/12/2014CN203482087U Device for balancing EMC performance and leakage current
03/12/2014CN203481796U Current detection and over-current protection circuit of motor winding
03/12/2014CN203481046U Power capacitor wire outlet sleeve pipe provided with working state indicator
03/12/2014CN203480744U Environment-friendly type potential difference meter experimental box
03/12/2014CN203480360U Power strip
03/12/2014CN203479949U Electric leakage detection apparatus
03/12/2014CN203479948U Temporary ground wire hanging-connection state sensor for substation
03/12/2014CN203479895U Online monitoring system for iron core grounding current
03/12/2014CN203479894U Multipath direct current voltage non-common-ground isolation sampling circuit
03/12/2014CN203479893U Sensor suitable for metro stray current monitoring
03/12/2014CN203479892U Bus distributed on-line monitoring system for metal oxide arrester leakage current
03/12/2014CN203479891U OLED micro-current detection system
03/12/2014CN203479890U Counting device of lightning protection equipment
03/12/2014CN203479889U Novel lightning stroke counting equipment
03/12/2014CN203479888U Overvoltage on-line detector
03/12/2014CN203479887U Safe and intelligent warning board of transformer substation
03/12/2014CN203479886U High-voltage electrified warning device
03/12/2014CN203479885U High-voltage electroscopic pen with distance measuring function
03/12/2014CN203479884U Extreme value sampling circuit
03/12/2014CN203479883U Reference voltage pull-type signal acquisition circuit of electrical fire monitoring detector
03/12/2014CN203479882U Traction power supply information acquisition apparatus based on synchronous measurement
03/12/2014CN203479881U Static detection device used for static attenuation performance test
03/12/2014CN203479880U Open type impedance matching connector used for pulse high current measurement
03/12/2014CN203479879U Voltage detection circuit for motor protector
03/12/2014CN203479878U Plastic-shell voltage detection equipment
03/12/2014CN203479877U Device and system for sensing and regulating inductor current in inductor
03/12/2014CN203479849U Test seal line
03/12/2014CN203479416U Power cable temperature and current-carrying capacity online monitoring system
03/12/2014CN203474921U Anode current distribution measurement system for aluminum electrolysis cell
03/12/2014CN103636030A Method for detecting a triggering of a security device
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