Patents
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
05/2013
05/01/2013CN202917598U Edge cutting and edge voltage testing device for soft package lithium ion battery
05/01/2013CN202917335U Multifunctional insulating operating rod
05/01/2013CN202917281U Magnetic valve type electric reactor with wireless monitoring system
05/01/2013CN202916337U Automatic range alternating-current and direct-current gearless digital voltmeter
05/01/2013CN202916336U Low voltage alarm circuit of mobile power supply
05/01/2013CN202916335U Three-phase current meter based on single-phase metering chip
05/01/2013CN202916334U Voice safety prompting device for cable high-voltage holding test
05/01/2013CN202916333U Zero sequence voltage detection device for 6-10kV circuit
05/01/2013CN202916332U Radiation current sensor
05/01/2013CN202916331U Current disorder monitoring device for security and protection system voltage regulating apparatus
05/01/2013CN202916330U Current sensor used for static synchronous compensator
05/01/2013CN202916329U DC voltage sampling circuit
05/01/2013CN202916328U Current/voltage integrated-type measuring device
05/01/2013CN202916326U Electronic current transformer
05/01/2013CN103080756A 功率转换装置 Power conversion means
05/01/2013CN103080754A Current sensor
05/01/2013CN103078482A Overcurrent detecting circuit and frequency converter device with same
05/01/2013CN103076560A Combined device for contactless type measurement through electrical testing equipment and application thereof
05/01/2013CN103076544A Generator-set state-monitoring system
05/01/2013CN103076522A Device and method for measuring tide directions of photovoltaic grid-connected power generation and commercial power
05/01/2013CN103076502A System and method for collecting remote and synchronous measuring data of moving object target
05/01/2013CN103076491A AC-DC (Alternating current-Direct current) universal power supply line detection method and circuit as well as device
05/01/2013CN103076490A Alternating-current 220V input signal acquisition circuit
05/01/2013CN103076489A Instantaneous overcurrent detecting circuit of optical fiber communication cascade type high-voltage inverter
05/01/2013CN103076488A Non-contact-induction-type voltage tester
05/01/2013CN103076487A Algorithm for sampling voltage peak in sudden change of load of high-power battery test equipment
05/01/2013CN103076486A Wiring method capable of improving power supply feedback precision
05/01/2013CN103076485A Medium-voltage power grid bus capacitance and current detection system
05/01/2013CN103076484A Electrical testing system and method
05/01/2013CN103076483A Low voltage detection circuit
05/01/2013CN103076482A Motor current detection device and motor current detection method
05/01/2013CN103076481A Three-phase integrated electronic transformer
05/01/2013CN102411085B Alternating current collecting and merging device and alternating current collecting method
05/01/2013CN102354427B method and device for flexibly identifying residual current-type electrical fire on line
05/01/2013CN102135555B Series arcing fault identifying method for low-voltage system
05/01/2013CN102034343B Data reporting method of power utilization information acquisition terminal based on random value
05/01/2013CN102023262B Method for recognizing arc grounding overvoltage of 35 kV power grid
05/01/2013CN102013343B Integrated-type operator
05/01/2013CN101958960B Method, system and mobile phone for alarming abnormity of mobile phone battery between group members
05/01/2013CN101888082B Residual current protector
05/01/2013CN101881793B Alternating current power failure detection method and warning circuit
05/01/2013CN101790689B Measuring and/or switching device
04/2013
04/30/2013US8433063 Horizontal copper patching assembly
04/25/2013WO2013059721A1 Current monitoring for indicating condition of attached electrical apparatus
04/25/2013WO2013057416A1 Method and device for analysing the quality of the electrical energy in a three-phase electric network
04/25/2013WO2013056917A1 Battery system
04/25/2013US20130103334 Method for Diagnosing an Operating State of a Contactor and Contactor for Implementing Said Method
04/25/2013US20130103330 Phase-Level Power Management in an Information Technology Facility
04/25/2013US20130099776 Wireless charging intensity indication method and charged device
04/25/2013US20130099775 Current sensor
04/25/2013US20130099773 High-voltage sensor with axially overlapping electrodes
04/25/2013DE102012203348A1 Stromverbrauchsmessgerät, stromverbrauchsmessverfahren und nichtflüchtiges materielles maschinenlesbares medium hierfür Power consumption meter, power consumption measurement method and non-volatile material machine-readable medium therefor
04/25/2013DE102012020515A1 Stromsensor und Verfahren zur Detektion eines stromlosen Zustands Current sensor and method for detecting an electroless state
04/25/2013DE102011085090A1 Circuit device for measuring electric voltage in turning rate sensor, has capacitor formed between node and ground contact, and another node connected with voltage generator, where certain voltages are applied between nodes and contact
04/25/2013CA2849963A1 Method and device for analysing the quality of the electrical energy in a three-phase electric network
04/24/2013EP2583369A2 Method, sensor apparatus and system for determining losses in an electrical power grid
04/24/2013EP2490031B1 Method and system for measuring an electrical quantity in an electrical network
04/24/2013CN202906425U Reclosing device with two digital tubes for cycle display
04/24/2013CN202906134U Power socket with function of leakage intensity indication
04/24/2013CN202903903U Online apparatus of parallel compensation capacitor group of transformer substation
04/24/2013CN202903871U Wireless electric energy saving monitor
04/24/2013CN202903870U Ultra-low-power high-speed high-precision data acquisition system
04/24/2013CN202903869U Household voltage monitoring device
04/24/2013CN202903868U Electrification indication power supply circuit
04/24/2013CN202903867U High voltage fixed distance accurate alarm device
04/24/2013CN202903866U T-shaped-structure-connection electroscope
04/24/2013CN202903865U Simplified sine wave sampling circuit
04/24/2013CN202903864U Electric leakage current detection device of single-phase AC power supply circuit
04/24/2013CN202903863U Four-wire current detection circuit for reclosing device
04/24/2013CN202903862U Power supply voltage detection circuit for reclosing device
04/24/2013CN202903861U Voltage middle regulation detection device for upper housing of non-contact sensor
04/24/2013CN202903860U Differential signal detection apparatus
04/24/2013CN202903859U AC current detection alarm circuit
04/24/2013CN202903858U DC power supply input detecting circuit
04/24/2013CN202903857U Electromechanical line pre-warning system
04/24/2013CN202903856U 一种tmr电流传感器 One kind tmr current sensor
04/24/2013CN202903855U A current sensor
04/24/2013CN202903854U Current transformer
04/24/2013CN103069284A Voltage sensing assembly and battery module employed with the same
04/24/2013CN103068096A Light-emitting diode (LED) lamp, current sampling circuit and drive circuit of LED lamp
04/24/2013CN103065883A Intelligent high-voltage direct-current relay
04/24/2013CN103065442A Voltage monitoring system based on transformer station area phase sequence identification
04/24/2013CN103064044A Hall displacement sensor magnetic steel detection device
04/24/2013CN103064021A Measuring equipment and method of induction motor excitation parameter
04/24/2013CN103063967A Switching room user identification method and switching room user identification device
04/24/2013CN103063960A Household electric energy quality monitoring and control device
04/24/2013CN103063907A Electronic type voltage transformer signal collection system
04/24/2013CN103063906A Electric power switch cabinet wireless monitoring system
04/24/2013CN103063905A Single battery voltage isolation detecting system
04/24/2013CN103063904A Zero cross detection circuit
04/24/2013CN103063903A Overvoltage computing method of modular multi-level converter
04/24/2013CN103063902A Aluminum electrolytic cell anode voltage signal acquisition device
04/24/2013CN103063901A Pilot frequency injection detection method of power grid ungrounded system busbar capacitance current
04/24/2013CN103063900A 电流传感器 Current Sensors
04/24/2013CN103063896A Sensor optical fiber ring and anti-vibration type Sagnac type full optical fiber current transformer
04/24/2013CN103063895A Pliers-shaped anti-interference current transformer and transformer iron core grounding current testing system
04/24/2013CN103063894A Miniature double-pole fast-cutting intelligent integrated electrode without damaging rock coupling and application method thereof
04/24/2013CN102338827B Method for analyzing electric network waveform distortions and automatically monitoring electric power harmonic parameters
04/24/2013CN102253275B Data sampler being universally used by voltage-type sensor and inductively coupled plasma (ICP) sensor
04/24/2013CN102207517B Method for testing mean current of circuits by Farad capacitor
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